BÜCHI AG - Reactor Systems and Pilot Plants

Catalyst testing, catalyst screening Catalyst testing covers several types of research such as catalyst effectiveness, yield, activation, lifetime and regeneration. The type of catalyst baskets varies depending on the catalyst being used, the interaction with the chemistry, the temperature, the pressure and the number of catalysts in the basket. Exposure to the reactants can be done through a stationary catalyst bed or a spinning basket. Our special accessories offer solutions for more complex problems in pressure reactions in the field of catalyst research.

bmd 075 - 5400 magnetic couplings Torque range: 50 - 5400 Ncm Temperature range: -50 °C to +500 °C Pressure range: full vacuum - 500 bar / 6000 psi Materials: stainless steel, Hastelloy®, Tantalum, Titanium, ceramic etc. Buchi magnetic couplings (bmd) are produced for mixing of chemicals of low to very high viscosities and under full vacuum to high pressure. Magnetic couplings are combined with stirrer motor and speed transmission for manual speed adjustment or with frequency converter. Buchi bmd magnetic couplings are available for ATEX rated area.

Depending on the stirring or mixing task, Buchi reactors can be equipped with stirrers of different types. For gas entrainment as in hydrogenations, the Rushton type turbine stirrer is often used.

Corrosion testing requires the realistic simulation of the process environment. These environments often include HPHT (high pressure high temperature) conditions. Thanks to our proprietary designs and the use of high-performance materials our industry leading HPHT corrosion testing autoclaves are suitable for the most challenging corrosion testing applications. We have worked jointly with customers from various industries such as upstream and downstream oil & gas, petrochemicals, steel, nuclear and conventional power generation, inspection, certification and testing to design, engineer and manufacture customized corrosion testing solutions for their individual applications.

Metal-free magnetic coupling bmd 250 i / cyclone 250 i ac Torque: 250 Ncm Temperature range: - 20 °C to +250 °C Pressure range: full vacuum - 60 bar / 1000 psi Stirrer speed: 0 - 2500 rpm Materials: ceramic Metal-free magnetic couplings (bmd 250 i) and stirrer drives (cyclone 250 i ac) feature inert behavior and full corrosion resistance, as no metal can get in contact with the process media. Built in our reactor systems versoclave, polyclave, kiloclave and in combination with pressure vessels in glass or glass-lined steel, we offer complete metal-free solutions.

Sampling systems for manual and automated sampling Systems for manual and automated sampling (up to 4 samples per run) during pressure reactions, see also Parallel Pressure Reactor system PPR. Sampling system for pressure reactors, Sampling with the reactor under pressure, with immersion tube and filter, sampling cylinder, Connection for flushing the lines and sampling cylinder

Most processes in glass reactors are performed under vacuum. We cooperate with the leading manufacturers of vacuum pumps with the aim to supply complete reactions systems (reactor plus vacuum pumps). This cooperation guarantees best process performance due to the optimal configuration of reactor and vacuum pumps.

Heat exchangers are mainly used in vacuum distillation systems for cooling and condensation in the absorption and rectification processes in chemical plants. Glass heat exchangers enable visual process control during scale-up and production and processing of multiple (acidic) chemical substances. We offer glass spiral type and shell & tube type heat exchangers. These are often operated in combination with a secondary condenser for additional vapor condensation. The glass spiral heat exchangers can be operated in parallel to form large heat exchange areas for higher condensation performances and larger reactors systems in pilot plants. They feature easy cleaning and operation of cooling media at up to 3 bar pressure.

Feeding of liquids, solid, gas Burettes Volume: 10 - 1000 ml Pressure: depending on material Material: Glass, stainless steel, Hastelloy® Burettes are available in glass with protective jacket or as full metal version for higher pressures with sightglass. Feeding funnels enable fast charge of solids and liquids.

Glass overheads are typically built (in our standard chemReactor and production plant setups) for multipurpose and semi–batch operation mode under full vacuum. They mostly consist of feeder vessel, a distillation column, condenser and secondary condenser, phase separator, receiver, including valves and pressure equalization piping and a rupture disc as safety device. For rectification, packed distillation glass columns up to DN600 are used with reflux condenser, a reflux splitter with a reflux controller to set the reflux ratio. In Buchi chemReactors, both systems can be combined.