摘要:
A preferred modular microplasma microchannel reactor device includes a microchannel array arranged with respect to electrodes for generation of plasma and isolated by dielectric from the electrodes. A cover covers a central portion of the microchannel array, while leaving end portions of the microchannel array exposed. A gas inlet and product outlet are arranged to permit flow into, through and out of the microchannel array. Reactor modules of the invention include pluralities of the modular reactor devices. The reactors devices can be arranged by a housing or a frame to be in fluid communication. A system of the invention arranges pluralities of modules. Preferred module housings, frames and reactors include structural features to create alignments and connections. Preferred modules include fans to circulate feedstock and reaction product. Other reactor devices provide plasma actuation for flow.
摘要:
Macro- and microfluidic devices and related technologies, and chemical processes using such devices. More specifically, the devices may be used for a fully automated synthesis of radioactive compounds for imaging, such as by positron emission tomography (PET), in an efficient, compact and safe to the operator manner. In particular, embodiments of the present invention relate to an automated, multi-run, microfluidic instrument for the multi-step synthesis of radiopharmaceuticals, such as PET probes, comprising a remote shielded mini-cell containing radiation-handing components.
摘要:
The invention relates to a reactor (10) for synthesising a liquid hydrocarbon, preferably a methanol-containing hydrocarbon. A starting material is used, which contains a gas having a carbon component and a hydrogen component. The reactor (10) comprises a plurality of reactor elements connected in parallel and each of the reactor elements has a gas inlet (21) at a first tube end and a product outlet (23) at a second tube end (22.2). Each of the reactor elements comprises at least one first reactor tube (20.1) and a second reactor tube (20.2) arranged running in the opposite direction. In addition, each of the reactor elements comprises at least one guide element (30.1, 30.2), which is located between the first reactor tube (20.1) and the second reactor tube (20.2) and connects said tubes fluidically. At least one filling opening (24.1, 24.2) for introducing a catalyst for the synthesis of the liquid hydrocarbon is provided on each reactor element. The connection in parallel of the reactor elements is ensured owing to the fact that the gas inlets (21) of a plurality of reactor elements can be charged with the starting material (AS) from a common starting material feed, and owing to the fact that the product outlets (23) of a plurality of reactor elements can be connected fluidically to a downstream region of the installation.
摘要:
Disclosed herein is a microcatalytic reactor system (10) comprising a microtubular reactor module (1) produced using a microtubular honeycomb carbon material (11) obtained by heat-treating cellulose fiber, the microcatalytic reactor system (10) comprising: a microtubular reactor module (1), which is produced by assembling and sealing a reactor frame (15) around a microtubular honeycomb carbon material (11), obtained by heat-treating cellulose microfiber, using an adhesive (14), and serves to allow reaction fuel (6) supplied thereto to catalytically react; a very small heater (2) wound around the microtubular reactor module (1) such that it can locally heat only the microtubular reactor module (1); a transport pipe line (4) connected to the microtubular reactor module (1) such that it supplies reaction fuel (6) and purge gas (61) to the microtubular reactor module (1); an evaporation heater (5) disposed in a region that is part of the transport pipe line (4) such that it vaporizes the reaction fuel (6) supplied to the microtubular reactor module (1) when the reaction fuel (6) is in a liquid state; a control unit (51) for controlling the temperature of the evaporation heater (5); and a quartz reactor (3) for fixing the entire reaction portion of the microtubular reactor module (1).
摘要:
An assembly for performing controlled heat exchanging reactions is provided. The assembly has a chemical reaction chamber adapted to receive a sample and allow the sample to chemically react; a thermal sleeve having heating elements for making efficient thermal contact with a reaction chamber; an instrument with a housing comprising an electrical connection, a cooling source, a processing area adapted to receive a thermal sleeve, and an optics assembly in optical communication with a chemical reaction chamber; and a circuit for monitoring and controlling the optics assembly and for collecting the output signal of the optics assembly. Preferably there are a plurality of housings and associated modules, each of which may be independently controlled for heat exchanging operations. The reaction chamber comprises two opposing major walls and a plurality of contiguous minor walls, wherein the ratio of thermal conductance of the major walls to that of the minor walls is at least 2:1.
摘要:
Disclosed herein are a microtubular honeycomb carbon material obtained by heat-treating cellulose fiber, a production method thereof, a microtubular reactor module fabricated using the microtubular honeycomb carbon, a method for producing the microtubular reactor module, and a microcatalytic reactor system comprising the microtubular reactor module. A carbon material having a new structure is produced by heat-treating cellulose fiber, and a catalytic reactor system having a new structure is constructed by coating the surface of the carbon material with a metal catalyst. Cellulose carbide, used as the reactor material, is very simple to produce. Because it has a micro honeycomb structure having a large number of microchannels and a large number of mesopores, it can be loaded with a large amount of a catalyst compared to the prior material having the same area, and thus it is useful as a catalyst support, and the reaction efficiency can be maximized. Also, the microcatalytic reactor system can be used in applications including very small steam reformer systems that use biomass fuel such as ethanol, fuel cell reactor systems, VOC and low-concentration-hydrogen treatment systems operable below 200 °C, micro heat exchangers, and natural gas reformer systems. Thus, the invention is a useful, industrially applicable invention.