A sample heating/cooling device comprises a plurality of members operable in use to heat and/or cool one or more samples. Each member has a sample contact surface and is biased towards a resting position under the operation of a biasing means. The members are movable independently of one another against said bias under the application of a force on the sample contact surface and so are able to conform to the shape of a sample placed on the members to provide a uniform heating/cooling profile. The members may be mounted in a heating/cooling element and adapted to conduct thermal energy between the sample and the element. The device is particularly suitable for thawing frozen sample bags having an irregular shape. A corresponding method is also described.

A catalytic reactor is provided comprising a plurality of first flow channels including a catalyst for a first reaction; a plurality of second flow channels arranged alternately with the first flow channels; adjacent first and second flow channels being separated by a divider plate (13a, 13b), and a distributed temperature sensor such as an optical fiber cable (19). The distributed temperature sensor may be located within the divider plate, or within one or 10 more of the flow channels.

A device for hydrogen production with waste aluminum includes a treatment apparatus for waste aluminum and a reaction tank. The apparatus includes a first crusher, a pickling tank, and a second crusher. The first crusher is for preliminarily crushing waste aluminum to obtain first aluminum chips. The pickling tank is for receiving and pickling the first aluminum chips crushed by the first crusher. The second crusher is for receiving and fine crushing the first aluminum chips to obtain second aluminum chips. The second aluminum chips are received by the reaction tank and then hydrolyzed with an alkaline solution in the reaction tank to produce hydrogen. Since waste aluminum is used as the raw material of hydrogen production, and a specific device is used for waste aluminum treatment, so the effects of recovering waste metal, reducing environmental damage, and saving costs can be achieved at the same time.

A closed system for rehydrating powder and delivering the rehydrated powder to a reactor, may include a liquid reservoir for containing liquid; a syringe configured to contain powder to be rehydrated; a reactor; a controller for controlling operation of the syringe; and a conduit fluidically linking the liquid reservoir to a port of the syringe, fluidically linking the port to the reactor. The controller is configured to operate the syringe so as to draw liquid from the liquid reservoir into the syringe and rehydrate the powder, or to drive the rehydrated powder into the reactor.

A hydrogenation method for preparing HBPA includes placing a BPA reaction liquid into a hydrogenation vessel with a hollow-shaft stirrer installed inside; starting the hollow-shaft stirrer to stir the BPA reaction liquid and simultaneously allowing hydrogen gas evenly distributed over and contact well with the BPA reaction liquid; in the presence of a single-metallic Ru/Al2O3 hydrogenation catalyst to proceed with a catalytic hydrogenation at low temperature and low pressure to produce HBPA, the HBPA has a yield of 99.7% or more, and particularly having a trans/trans isomer ratio above 63%.

Disclosed are methods and conditions for manufacturing a polyethylene polymer or copolymer in a liquid/liquid biphasic non-adiabatic reaction, and the compositions and articles made therefrom.

A catalyst system is disclosed for producing para-xylene from a C.sub.8 hydrocarbon mixture comprising ethylbenzene and at least one xylene isomer other than para-xylene. The catalyst system comprises a first catalyst bed and a second catalyst bed. The first catalyst bed comprises a first zeolite and a rhenium hydrogenation component. The first zeolite has a constraint index from 1 to 12, an average crystal size from 0.1 to 1 micron and has been selectivated to have an ortho-xylene sorption time of greater than 1200 minutes based on its capacity to sorb 30% of the equilibrium capacity of ortho-xylene at 120? C. and an ortho-xylene partial pressure of 4.5?0.8 mm of mercury. The second catalyst bed comprises a second zeolite and a rhenium hydrogenation component. The second zeolite has a constraint index ranging from 1 to 12 and an average crystal size of less than 0.1 micron.

The present invention relates to a method for conducting deracemization using Taylor flow and a device for conducting the same. With respect to the deracemization of a racemate, it may be efficiently conducted with improved rapidity when a racemate-containing fluid is placed under Taylor flow.

A reactor has a heat exchanging body having a heat medium flow channel that a heat medium fluid flows and a reaction flow channel that a reaction fluid flow, and at least one detection part for detecting temperature of a fluid in one or both of the heat medium flow channel and the reaction flow channel. At least one installation hole extends in a skew position to the flow channel and includes an opening portion communicating with the flow channel. The detection part is installed at the opening portion and contacts the flowing fluid. At least one fluid guide hole is formed along the flow channel from the opening portion of the installation hole.

Embodiments described herein generally relate to hydrogenation catalysts, syntheses of hydrogenation catalysts, and apparatus and methods for hydrogenation. Methods for forming a hydrogenation catalyst may include mixing a silica generating precursor with a copper precursor and adding an ammonium salt to an end pH of between about 5 to about 9. Methods for hydrogenating an oxalate may include forming a reaction mixture by flowing a hydrogenation catalyst to a reactor, flowing a hydrogen source to the reactor, and flowing an oxalate to the reactor, wherein the hydrogenation catalyst has a particle size between about 10 nm to about 40 nm. Methods may further include reacting the oxalate to form ethylene glycol.