摘要:
Provided is a heat exchanger type reaction tube having high uniformity and small heat loss. The heat exchanger type reaction tube includes: a first tube part (2) that forms a first flow channel (4) into which a feed gas flows and in which the feed gas moves down; a second tube part (3) that forms a second flow channel (5) which is connected to the first flow channel (4) and in which the feed gas moves up and that has a granular catalyst carrying support medium charged therein; and a heating device that heats the first tube part (2) and the second tube part (3). Then, the first flow channel (4) and the second flow channel (5) are adjacent to each other while being separated from each other by a partition wall, and the second flow channel (5) is provided with a distributor (8) which holds the catalyst carrying support medium and through which the feed gas passes.
摘要:
The present invention relates to a system (10) for producing L-homophenylalanine and a process for producing L-homophenylalanine using the system (10). The system (10) and the process include monitoring and controlling of the reaction conditions (e.g., temperature and pH) to desired or predetermined values. The monitoring, adjusting and agitating steps provided by the method thereby result in a more complete conversion of the available substrate and produce a sufficient yield of L- homophenylalanine.
摘要:
In a reactor (1) for decomposing a silicon-containing gas (2), to avoid silicon deposition on an inner wall (4) of a reactor vessel (3), it is provided that, within a reaction chamber (6) between at least one gas-feed line (12) and the inner wall (4), at least one catalytically active mesh (23) is provided. The mesh (23) accelerates the thermal decomposition of the gas (2) and decreases the deposition of silicon on the inner wall (4). In addition, a method for producing silicon using the inventive reactor (1), and the use of the silicon produced in photovoltaics, is described.
摘要:
A pre-reformer (10) comprises a non-electrically conducting gas tight duct (12) and an electrically conducting wire (14) arranged in the duct (12). The electrically conducting wire (14) is electrically isolated from the duct (12). The duct (12) has an inlet (16) for receiving a hydrocarbon fuel at a first end (18) and an outlet (20) for supplying a pre-reformed hydrocarbon fuel at a second end (22). At least the inner surface (24) of the duct (12) is chemically inert with respect to the hydrocarbon fuel. An electrical power supply (26) is electrically connected to the electrically conducting wire (14) and a control means (28) controls the supply of electrical current through the electrically conducting wire (14) to maintain the electrically conducting wire (14) at a temperature to provide selective thermal decomposition of higher hydrocarbons in the hydrocarbon fuel. The performer reduces coking in associated fuel cells and other parts of a fuel cell system.
摘要:
A process and reactor for the gas-phase reaction of commercially available gases in the presence of an inert carrier gas to from product gas. The reactor (10) has an outer shell tube (12) and an inner tube (16), both of which feed reaction chamber (18). At last one first commercially available fed gas is fed to outré tube (12) via first inlet (13). One or more inert gases is fed to outer tube (12) via second inlet (14). In the case of chloramines gas formation, chlorine gas reacts with ammonia. Gas at reaction zone (20) in reaction chamber (18), which is heated by one or more heating elements (22). The product gas stream exits reaction chamber (18) via discharge tube (26).
摘要:
The invention relates to a device for carrying out gas reactions, comprising a plasma reactor with a throughflow of gases, which in particular has a cylindrical plasma chamber, whereby the elements for forming a flow of gases are arranged before and/or in and/or after the plasma reactor in order to form a gas stream within the plasma chamber, whereby at least one, particularly central, zone in the gas flow is formed which is flow-reduced. The invention further relates to a method for carrying out gas reactions.
摘要:
The invention relates to a device for producing and simulating two-phase flows. The device is at least partially transparent, thereby allowing observation of the interior of the device. Two-phase flows, such as occur for example in fuel cells, heat exchangers or other chemical or electrochemical reactors can be easily simulated if such a device forms part of a fuel cell, a heat exchanger or another reactor. The invention further relates to a method for producing and simulating two-phase flows in an electrochemical or chemical reactor, such as fuel cells, comprising the following steps: introducing a gas-emitting solution into an at least partially transparent device that comprises means for producing two-phase flows, and producing and recording the two-phase flow.
摘要:
The invention relates to a device for producing and simulating two-phase flows. The device is at least partially transparent, thereby allowing observation of the interior of the device. Two-phase flows, such as occur for example in fuel cells, heat exchangers or other chemical or electrochemical reactors can be easily simulated if such a device forms part of a fuel cell, a heat exchanger or another reactor. The invention further relates to a method for producing and simulating two-phase flows in an electrochemical or chemical reactor, such as fuel cells, comprising the following steps: introducing a gas-emitting solution into an at least partially transparent device that comprises means for producing two-phase flows, and producing and recording the two-phase flow.