MPDSBASIC - Standard laboratory photoreactors

How you can take advantage of photochemistry in research and development using a sophisticated system

MPDS which stands for „Modular Photochemical Development System“ describes the modular system as standard for photochemical experiments in the lab. The MPDSBASIC product range covers application-oriented photo-reactors and radiation sources for photochemical reactions that have been specially developed for basic trials and feasibility studies on a laboratory scale.

MPDSBASIC Photoreactors


Batch Low volume Photoreactor Batch Mid volume Photoreactor Batch High volume Photoreactor

photoLAB Batch-S
Low volume Photoreactor
10-20 ml

description

photoLAB Batch-S - Low volume Photoreactor 10-20 ml

In order to properly perform photochemical reactions with a small amount of liquids, special photo reactors are required. During photocatalysis in particular, the catalyst must be retained in the mixture and should not be removed from the reaction vessel along with solvent. Gas supply plays an essential role (filling the vessel with oxygen or inert gas), and temperature control must be precise. Furthermore, at low lamp output, wavelength-selective radiation and regulation of radiation flux also need to be considered.

The Batch 10-20 ml photoreactor is developed to meet the challenges of having a low product volume and excels for this purpose. A special magnetic stirrer provides for constant mixing in the vessel. The temperature control and gas supply are designed taking into account recovery of solvent and catalyst lost through discharge and flexible radiometric characteristics.

Four water-proof magnetic drivers, specially developed by the engineers at Peschl Ultraviolet GmbH for the reactor, are mounted on an air-cooled platform. A water-cooled radiation source is located coaxially to the magnetic drivers. Photoreactors, joined to a stainless-steel mounting plate, are positioned above each magnetic driver and secured with a standardized quick-connection system. Temperature in the photoreactors can be controlled using a cryostat; a proper reflux condenser is also installed on the photoreactors. The photoreactors are surrounded by a reflector which enables optimal use of UV radiation. Every reactor can be equipped with a band-pass filter to isolate individual wavelengths from the spectrum. The radiation flux is regulated using slits.

The innovative reactor construction allows several experimental reactions to be conducted in parallel in the shortest time possible. Reaction solutions can be prepared and analysed immediately without losing time. Because of the system’s versatility, it is suitable to be used for the widest range of laboratory-scale photochemical reactions for small product volumes and quick screening in feasibility studies, although the system was originally developed with the demands of photocatalysis in mind.

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photoLAB Batch-M
Mid volume Photoreactor
250-400 ml

description

photoLAB Batch-M - Mid volume Photoreactor 250-400 ml

The selection of a suitable photoreactor is fundamentally dependent on the requirements of chemical reactions and physical properties of reactants. Using a photoreactor with a low optical path length is necessary, especially for liquids with a molar extinction coefficient of more than 30 m-1. This photoreactor is developed for this purpose. When operating at low process volumes and optical path lengths lower than 2 cm, it is necessary to ensure thorough mixing of the medium. A conventional magnetic stir bar is unsuitable for use in this case because the vortex generated in the annular gap does not allow for the exchange of substances between different levels.

This photoreactor is therefore equipped with an integrated magnetic drive circulation pump, which provides thorough mixing of reactants when used together with a lateral riser pipe. The magnetic drive circulation pump is made of durable and chemically inert materials and can be easily removed from the photoreactor for cleaning. Like all other photoreactors of the MPDS Toolbox, this photoreactor is equipped with a sensor port. Length of reaction times can be freely determined, so that a high yield, close to that at equilibrium, is guaranteed.

The photoreactor‘s high efficiency and simple handling make it a universal standard for use in basic research during a feasibility study.

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photoLAB Batch-L
High volume Photoreactor
400-700 ml

description

photoLAB Batch-L - High volume Photoreactor 400-700 ml

The world’s bestselling batch photoreactor is particularly suitable for carrying out simple basic photochemical research with a product volume of approx. 400-700 ml and is mentioned in many publications. Its simple design makes this photoreactor a universal, flexible standard photoreactor for liquids in which the absorption of the reaction medium is not particularly high and the specific demands on the photoreactor cannot be more closely defined in advance.

The optical path of >2 cm makes it possible to mix the reaction medium with a conventional magnetic stir bar. The corresponding magnetic stir bar creates the condition for a complete and proper mixing of the reaction medium. This allows reactions with a high transmission to be irradiated unproblematically in the course of a feasibility study.

Optionally the photoreactor can be heated or cooled down by means of a temperature control cladding. The sensor port permits the irradiation physics of the system to be measured by the appropriate spectrometer.

The reaction times can be set at any frequency, which ensures a high product turnover close to equilibrium.

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Deep Temperature Photoreactor Falling Film Photoreactor Tubular Photoreactor

photoLAB Deep Temperature
Photoreactor

description

photoLAB Deep Temperature Photoreactor

The ability to perform photochemical reactions at temperatures as low as -80°C has opened up new possibilities when it comes to investigating unstable substances, which only occur as transient intermediates at room temperature. However, this poses significant challenges to the design of the photoreactor apparatus.

At low temperatures, it is essential that the radiation source is thermally decoupled from the reaction medium. This is brought about by maintaining the ambient temperature required for igniting glow-discharge lamps as well as sustaining the cooling of the lamp by applying coolant water above the point of freezing and/or maintaining the ambient temperatures required for semiconductor radiation sources.

Peschl Ultraviolet GmbH has designed a photoreactor that is suitable for performing photochemical low-temperature reactions at temperatures at low as -80°C with the use of high-performance radiation sources. In order to cool the reaction liquid, the photoreactor is placed in a Dawer receptacle, in which the cooling medium within will bring the reactor to the desired temperature. The radiation source is operated in a dip tube and a cooling tube, where water cooling takes place. The cooling tube is thermally insulated from the reaction liquid using other technical measures. The standard low-temperature photoreactor is equipped with a fumigation device for mixing as well as a thermometer. The optical distance of the low-temperature photoreactor is optimised for this purpose. It is also possible to deliver the low-temperature photoreactor with an Archimedes mixer instead of the fumigation device.

A reflux condenser filled with coolant is used to cool the gas-liquid flow. This may be rendered inert through the introduction of dry ice or the use of an in-feed pipe with cryostats. The spiral shape of the inner pipe helps cool the steam being emitted from the reaction medium and feeds the resulting condensed liquid back into the reaction medium. The reflux condenser is furnished with threaded coupling, which can be either used to fit an in-feed pipe or a funnel attachment. There is also the option of supplying similarly evacuated coolers.

This set-up enables chemical activity of up to ~0.2 mol/h in quantum yields ≤1 at any working temperature down to around −80°C and viscosities up to 500 cP. The implemented gas quantities can be recorded and registered.

The low-temperature photoreactor from Peschl Ultraviolet GmbH enables the structured execution of photochemical reactions even in the low temperature sector and was designed for routine operation of preparative, kinetic and thermochemical investigations in the lab.

The use of a wide range of lamps (low-pressure mercury immersion lamps, mid-pressure mercury immersion lamps and xenon immersion lamps) enables a broad selection of spectral frequencies, which can be chosen for the reaction.

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photoLAB Falling Film
Photoreactor

description

photoLAB Falling Film Photoreactor

The efficient irradiation of liquids with low transmission (optical permeability) represents a hitherto unresolved challenge in some photochemical processes.

If there is a lack of penetrative depth, photons are absorbed directly at the boundary surface, the optical path of conventional reactors is not utilised, and a direct full absorption and in consequence an inefficient process occurs. Furthermore, and in particular in the case of photolyses and photochemically initiated reactions where radical intermediates are formed, mostly macromolecular secondary products can form which are deposited on the surface of the immersion lamp system (“filming”). These deposits additionally absorb the photons and in extreme cases can lead to overheating of a conventional photoreactor.

The falling film photoreactor from Peschl Ultraviolet GmbH has a special design that permits efficient irradiation of liquids with low transmission in the form of an even falling film with high turbulence and low layer thickness. Deposits on the jacket tube are prevented by the design, as the liquid film does not come into contact with the immersion lamp system.

With the falling film photoreactor the desired turbulence for the exchange of material at the boundary surface has already been reached with a Reynolds number of Re > 400 and requires no high flow rates. The favourable design of the overflow edge prevents tearing off of the film and heavily simplifies levelling. In direct comparison to an annular thin layer photoreactor, the advantage of the falling film photoreactor for liquids with low transmission becomes obvious. The advantageously long residence time in the photoreactor is heavily limited in a thin layer photoreactor by the high flow rate required to achieve turbulence, while in the falling film photoreactor this is considerably extended. This is of crucial advantage for the efficiency of the reaction.

The falling film photoreactor from Peschl Ultraviolet GmbH has been optimised in such a way that the size of the irradiated surface (cm²) in relation to the intensity generated in the distance to the radiation source is ideal for most reactions. Since the immersion lamp system is not in direct contact with the reaction medium, photochemical and thermal polymerisations on the surface of the jacket tube are prevented.

As the falling film photoreactor is a completely closed apparatus, gas diffusion can be simply achieved, gas consumption can be determined and the gas development in a photochemical reaction can be very closely followed.

The photoreactor can be cleaned simply and unproblematically without the use of tools. The reservoir is a component separated from the falling film reactor, so that connections to a wide range of reaction volumes are possible. The falling film photoreactor has been optimised for increased efficiency for the MPDSBASIC system in such a way that it works according to the double chamber principle and the radiation that is not completely absorbed in the falling film is utilised in the head of the reaction medium. The reactor can optionally be supplied with a temperature control cladding through which a reaction can be cooled or heated in the range from -80ºC to +120ºC.

The falling film photoreactor from Peschl Ultraviolet GmbH means that photochemical reactions can now be efficiently carried out even with liquids without appreciable transmission.

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photoLAB Tubular
Photoreactor

description

photoLAB Tubular Photoreactor

Discontinuous reactors (batch reactors) have their limitations due to the lack of precise reaction control and inexact temperature management. Moreover the depth of penetration of photons can be frequently limited by absorption, which means that no optimum photochemical reaction can take place.

The tubular reactor, also called a loop reactor, first invented by Peschl Ultraviolet in 1995 in the course of a pharmaceutical project in Basel, belongs to the group of micro photoreactors and works continuously until a reaction is concluded. This permits a simple but highly precise control of photochemical reactions.

The continuous operating mode means the reaction kinetics can be optimally adjusted and controlled and precisely analysed in conjunction with online analytics. Continuous flow operation makes the progress of reactions or optimisation of existing processes considerably easier since the reaction can be tracked precisely. For example, the possible creation of by-products through over-irradiation can be followed exactly. The collected data allows the appropriate photoreactor to be selected.

The essential advantages of this setup compared to planar micro photoreactors lie in the fact that all the emitted photons have access to the reaction medium and the flow channels can be easily cleaned or replaced by changing the tube. Likewise the selection of the tube diameter and associated adjustment of the optical section as well as of the throughput rate can be an advantage when a wide range of reactions are to be carried out (multi-purpose continuous flow).

A spiral tube of UV-permeable fluoropolymer is arranged around a support system. The tube can be of various diameters and be put on in various lengths and in multiple layers as far as this is expedient in photochemical terms. The reaction fluid is transported through the tubing by means of a pump. Located centrally in the system is the radiation source, which is operated in thermal isolation.

Upscaling is not done primarily by an increase in scale as with classic photoreactors, but by multiplication of the reaction systems until a production volume per time unit is reached (numbering-up). Use of the tubular reactor for industrial production has considerable limitations, which is why this reactor type is suitable only for basic investigations.

This type of process development makes it possible to scale laboratory results into plants that reach target production volume relatively risk-free.

The following aspects of this photoreactor are advantageous:

  • Controlled thermal conditions
  • Controlled flow rate
  • Controlled rate of turnover and analysis of reaction kinetics
  • Long residence time
  • High degree of material exchange in tube
  • Transmission into UVC region
  • Chemically inert and consistent
  • Differing diameters of tubes
  • Differing length of reaction zone

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Sideloop Photoreaktor Mikrophotoreactor Mikrophotoreactor with LED

photoLAB Sideloop
Photoreactor

description

photoLAB Sideloop Photoreactor

The limitation of discontinuous reactors (batch reactors) lies in their lack of precise reaction control and imprecise temperature management. Also, the photons’ penetration depth can frequently be limited due to absorption, whereby no optimum photochemical reaction can take place.

In principle, photochemical reactions can be developed in the batch, semi-batch or conti-flow procedure. Each of the operating modes has advantages and disadvantages which must be taken into consideration based on the sought-after reaction. Batch reactors can only be safely scaled to industrial sizes with increased time and effort, while semi-batch reactors greatly simplify this procedure since the kinetics in the photoreactor can be analysed, understood and taken into consideration.

To this end, Peschl Ultraviolet GmbH has developed an optimised side-loop photoreactor, which can be used in the classic way as a semi-batch photoreactor and in conti-flow mode. In some cases, it is appropriate to cascade these side-loop photoreactors so as to achieve an ideal space-time yield with maximum energy utilisation and controllable process conditions.

The optimised side-loop photoreactor is operated in a vertical set-up and takes up very little floor space. This means it can be operated in the safety cabinet. Depending on its design, the side-loop photoreactor can be gassed. Ventilation is not necessary due to the advantageous design. Also, there is no need to use siphon lines at the flow line or return line to avoid emptying, because no deposits are created on the boundary surface as a result of insufficient ventilation. The reaction is evenly circulated and has a constant dwell time in the irradiation zone. The upstream flow in the base makes it possible to run very low flow velocities to both determine and analyse the limits to over-irradiation. Tangential introduction allows for a high level of turbulence to be generated in the next step. The use of the MPDS cladding tube system means that the optical path and the usable volume can be adjusted by means of different combinations. When implemented in conjunction with a large HR insert, the side-loop photoreactor can be used as a thin-layer system with a high level of turbulence. External cooling, which is available as an option, enables the reactor’s temperature to be controlled. As with every MPDS photoreactor, the standardised measuring point is included for further analysis.

The side-loop photoreactor from Peschl Ultraviolet GmbH enables users to perform photochemical reactions in the side-loop procedure and was developed for routine operation – both for preparative and for kinetic and thermochemical examinations in the laboratory.

The use of an extremely wide range of lamps (mercury-vapour, low-pressure immersion lamps; mercury-vapour, medium-pressure immersion lamps and Xenon immersion lamps) translates into a wide range of spectral frequencies which can be selected for the reaction.

The following aspects of this photoreactor are beneficial:

  • Controlled thermal conditions
  • Controlled flow rate
  • Controlled conversion rate and analysis of the reaction kinetics
  • Long dwell time
  • High level of material exchange
  • Transmission up to the UVC range
  • Chemically inert and stable
  • Different optical paths can be set
  • Thin-layer operation possible

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photoLAB Mikrophotoreactor +
novaLIGHT CUBE100k

description

photoLAB Mikrophotoreactor + novaLIGHT CUBE100k

Batch reactors are limited in their lack of accurate reaction control and their inaccurate temperature management. Furthermore, the penetration depth of photons can often be limited due to absorption, thus an optimal photochemical reaction cannot take place.

Conti Flow microphotoreactors from Peschl Ultraviolet GmbH resolve these limitations and enable controlled implementation of photochemically initiated reactions.

Due to the continuous operating mode, the reaction kinetics can be optimally configured and precisely analysed in conjunction with an online analysis. The Conti Flow operation facilitates the development of the reaction or the optimisation of existing processes because the reaction can be traced accurately from start to finish. This allows the simple, yet highly accurate, control of photochemical reactions. The potential formation of by-products due to excess exposure, for example, can be traced exactly.
Although planar microphotoreactors exhibit reflection losses when coupling the radiation, which leads to a decrease in efficiency of the system, they have some key advantages and are often the method of choice for basic experiments.

The optimised mixed structures enable the formation of an extremely low coefficient of dispersion and ensure a highly efficient mixing of the reaction.

When combined with the patent pending irradiation module, novaLIGHT CUBE100, the planar microphotoreactor enables a precise wavelength screening using band-pass filters and constitutes an important tool in the process development of photochemical reactions. By using interchangeable band-pass filters, each discrete wavelength of the mercury spectrum can be viewed and evaluated in isolation in the absorption range of the reaction medium. The development of secondary reactions or of adverse photochemically initiated polymerisation effects can thus be precisely identified and analysed. This provides important parameters for selecting the optimal radiation source or data on edge filters or filter liquids that may be required.

Due to the high pressure resistance of 40 bar, higher flow rates can be driven in the planar microphotoreactor than would be possible with a tube reactor.

The microphotoreactors from Peschl Ultraviolet GmbH were designed specifically to meet the requirements of the photochemistry equipment.

They are available in borosilicate 3.3 and, for the first time, in quartz glass. The use of quartz glass as a reactor material is highly innovative and allows the implementation of photochemical reactions less 310nm. This fact makes the microphotoreactor from the MPDS modular system suitable for universal use and resolves existing restrictions in the market.

A bracket made of PTFE and stainless steel is used to hold the microphotoreactor cell and its connection to the pump and the cooling circuit via HPLC connections and perfluorinated tubes. When designing, importance is attached to a robust design which takes into account the requirements of glass equipment in terms of good stress distribution on the glass cell.

The small reaction volume in the microphotoreactor can heat up due to the energy of the photons that are introduced. Thus the microphotoreactors from Peschl Ultraviolet GmbH were provided with an efficient cross-flow cooling on the back of the photoreactor cell to enable the reaction liquid to be thermally stabilised. The band-pass filters used in the radiation module are sensitive to temperature. Therefore, the medium pressure radiation source used in the novaLIGHT CUBE100 is water-cooled and the filter is thus thermally insulated.

For conventional photoreactors, up-scaling is not performed primarily by scaling, but by multiplying the reaction systems until the output per unit of time (numbering-up) is achieved. For economic reasons, however, a certain „up-scaling“ of photoreactors is often also required in the „numbering-up“ in order to limit the number of photoreactors and the related costs of the infrastructure. Here, the planar microphotoreactor has advantages over the tube reactor because the resulting pressure loss during an enlargement of the format does not pose a significant problem due to the high pressure resistance of 40 bar.
This type of process development makes it possible to scale laboratory results relatively risk-free in systems in order to achieve the target output.

The following aspects of this photoreactor are advantageous:

  • Controlled thermal conditions
  • Controlled flow rate
  • Controlled conversion rate and analysis of reaction kinetics
  • Long retention time
  • High mass transfer in the photoreactor
  • Transmission into the UVC range
  • Chemically inert and stable
  • Possible wavelength screening
  • Customised reaction-optimised structure development is possible

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photoLAB Mikrophotoreactor +
novaLIGHT FLED100

description

photoLAB Mikrophotoreactor + novaLIGHT FLED100

Batch reactors are limited in their lack of accurate reaction control and their inaccurate temperature management. Furthermore, the penetration depth of photons can often be limited due to absorption, thus an optimal photochemical reaction cannot take place.

Conti Flow microphotoreactors from Peschl Ultraviolet GmbH resolve these limitations and enable controlled implementation of photochemically initiated reactions.

Due to the continuous operating mode, the reaction kinetics can be optimally configured and precisely analysed in conjunction with an online analysis. The Conti Flow operation facilitates the development of the reaction or the optimisation of existing processes because the reaction can be traced accurately from start to finish. This allows the simple, yet highly accurate, control of photochemical reactions. The potential formation of by-products due to excess exposure, for example, can be traced exactly.
Although planar microphotoreactors exhibit reflection losses when coupling the radiation, which leads to a decrease in efficiency of the system, they have some key advantages and are often the method of choice for basic experiments.
The optimised mixed structures enable the formation of an extremely low coefficient of dispersion and ensure a highly efficient mixing of the reaction.

In combination with the innovative novaLIGHT FLED100/xxx LED radiation sources, photochemical reactions can be performed in a wavelength-selective and energy-efficient manner. The continuous power control of the LEDs allows the accurate adjustment of the radiant flux to the requirements of the reaction. Thus the power consumption of the LED light source can be compared directly with a mercury vapour medium pressure radiation source (novaLIGHT CUBE100).

Due to the high pressure resistance of 40 bar, higher flow rates can be driven in the planar microphotoreactor than would be possible with a tube reactor.

The microphotoreactors from Peschl Ultraviolet GmbH were designed specifically to meet the requirements of the photochemistry equipment.

They are available in borosilicate 3.3 and, for the first time, in quartz glass. The use of quartz glass as a reactor material in combination with LED light sources is not yet state-of-the-art since commercially available LED chips <350nm, were currently defined as non-usable due, among other things, to their limited service life. The microphotoreactor made of quartz glass is nevertheless useful in conjunction with a medium pressure radiation source (novaLIGHT CUBE100), since quartz glass allows the performance of photochemical reactions less 310nm. This fact makes the microphotoreactor from the MPDS modular system suitable for universal use and resolves existing restrictions in the market.

A bracket made of PTFE and stainless steel is used to record the microphotoreactor cell and its connection to the pump and the cooling circuit via HPLC connections and perfluorinated tubes. When designing, importance is attached to a robust design which takes into account the requirements of glass equipment in terms of good stress distribution on the glass cell.

The small reaction volume in the microphotoreactor can heat up due to the energy of the photons that are introduced. Thus the microphotoreactors from Peschl Ultraviolet GmbH were provided with an efficient cross-flow cooling on the back of the photoreactor cell to enable the reaction liquid to be thermally stabilised.

For conventional photoreactors, up-scaling is not performed primarily by scaling, but by multiplying the reaction systems until the output per unit of time (numbering-up) is achieved. For economic reasons, however, a certain „up-scaling“ of photoreactors is often also required in the „numbering-up“ in order to limit the number of photoreactors and the related costs of the infrastructure. Here, the planar microphotoreactor has advantages over the tube reactor because the resulting pressure loss during an enlargement of the format does not pose a significant problem due to the high pressure resistance of 40 bar.

The LED light sources can also be adjusted in size in a modular manner to the format of the reactor cells, thus enabling the construction of industrially suited microphotoreactor systems.

This type of process development makes it possible to scale laboratory results relatively risk-free in systems in order to achieve the target output.

The following aspects of this photoreactor are advantageous:

  • Controlled thermal conditions
  • Controlled flow rate
  • Controlled conversion rate and analysis of reaction kinetics
  • Long retention time
  • High mass transfer in the photoreactor
  • Chemically inert and stable
  • Use of monochromatic LED light sources
  • Customised reaction-optimised structure development is possible

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All photochemically relevant wavelengths


We supply all types of lamps and doping as standard products. This means that we cover the entire spectral frequency range for the photochemistry in use, both polychromatically or monochromatically. Innovative light sources such as xenon radiation sources or LEDs represent the cutting edge of technology in our photo-reactors. We essentially supply the relevant spectral energy distribution data for all radiation sources.
  

MPDS UV radiation sources

    

Choose the appropriate standard photoreactor


From batch to semi-batch through to conti-flow photo-reactors, we supply the entire range as standard. This includes falling film photo-reactors, tubular photo-reactors, side-loop photo-reactors and micro photo-reactors. Depending on the application, you can choose from photo-reactors with a volume of 2 ml to 5000 ml for laboratory trials.

UV-Reactors

overview radiation sources

Extensive filter systems


Alongside standardised optical edge filters and filter liquids, we also provide the option of insulating individual wavelengths for screening by means of band-pass filters. This makes it possible to determine their relevance for the photochemical reaction and recognise any unwanted secondary reactions.

Filter UV spectra

Thermal decoupling decides


Alongside cold radiation sources, a sophisticated, modular cladding tube system is available for the thermal decoupling of the lamp from the reaction medium. The innovative MPDS screwing system prevents glass fastening elements from caking and can be applied with a maximum pressure of 0.5 bar. The diameters of the cladding tubes are optimised for photochemical reactions. Easy to clean thanks to fully demountable cladding tubes instead of double wall sleeves that are merged together, perfectly suited to CIP cleaning.

UV-Reactor

Safe to operate and yet practical to use


Use of protective casing is compulsory so as to comply with the legal industrial safety requirements. It is completely safe to perform photochemistry in the photonCABINET (safety cabinet) and yet still practical. Special attention was paid to simple sampling and the uncomplicated insertion of sensors and actors such as stirring tables and dosing pumps. For example, encoded connectors ensure the correct electrical connection.

Immediately ready for use, compact design


The standard photoreactor systems are supplied fully wired and can be used immediately. With a footprint of just 470 x 470 mm, the system takes up very little space on the lab table and can fit in any standard extractor hood as required.

MPDS-BASIC

Modular system


Photo-reactors, cladding tubes and radiation sources are compatible with each other in the modular system and are therefore interchangeable. Application-optimised photo-reactors can be exchanged cost-efficiently, while the lamps and cladding tubes can be retained. By freely positioning the radiation sources in the cladding tube using the innovative high-tension mechanism, it is possible to use the components in a range of different sized photo-reactors. This means that investments for future tasks are guaranteed in the long run.

cladding tubes & cooler

overview cladding tubes & cooler

 

Safety & Functionality


The MPDSBASIC Set includes the photonCABINET which is a double walled, light-proof protective cabinet made of stainless steel. I fulfills the legal requirements for personal safety agains optical radiation and protects surrounding materials against aging. The photonCABINET it is the only product on the market that meets the high requirements of the applicable standards, is CE compliant and also practicable and functional for operators. The necessary measures implemented for having a safe and functional product are well designed and protected by international patents.

UV radiation is harmful to eyes and skin and can cause irreparable personal injury. Furthermore materials in the ambient exposed to the UV radiation, will undergo an accelerated aging and can be destroyed. Medium pressure radiation sources have a surface temperature of up to 850° C and operate with lethal high voltage. Solvents may not present a explosion hazard for the user. The operation of photoreactors without optical protective device equipped with safety lock (aluminum foil, acrylic glass) is not allowed since the related normative standard was becoming mandatory (01.10.2013). In addition the risk analysis in accordance with EN ISO 12100 confirm, that an operation without safety cabinet is no longer sufficient and does not meet the requirements to protect employees by the owner / operator of the lab, who can be fully accountable and responsible for personal injury.

Ultraviolet Process development

Therefore photoreactors of the MPDS modular system always come along initially with the light-proof protective cabinet, which moreover provide the electrical power to the electronic power supplies for operating the radiation sources. Photochemical experiments are therefore absolutely safe. The unique photonCABINET is practicable, easy to use and inexpensive to purchase.

 

Process development and up-scaling made easy


The MPDSBASIC can be expanded step by step until it becomes an automated process development system. Depending on the stage of expansion, further reaction-relevant data can be acquired, which is necessary for up-scaling on an industrial scale at a later date.
The MPDSEVO represents the maximum stage of expansion with which the space-time yield, for example, can be determined and radiation-related parameters can be defined. The optimal lamp performance can also be verified for the process, which is essential for the cost estimation of an industrial photoreactor. Smaller product batches can be manufactured close to production in the MPDSEVO under non-GMP conditions.
MPDSEVO
 

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