摘要:
The invention describes microchannel apparatus and catalysts that contain a layer of a metal aluminide or are made in a process in which a metal aluminide layer is formed as an intermediate. Certain processing conditions have surprisingly been found to result in superior coatings. The invention includes chemical processes conducted through apparatus described in the specification. Other catalysts and catalyst synthesis techniques are also described.
摘要:
This invention relates to a process for conducting an equilibrium limited chemical reaction in a single stage process channel. A process for conducting a water shift reaction is disclosed. A multichannel reactor with cross flow heat exchange is disclosed.
摘要:
The invention describes microchannel reactors comprising a metal substrate having an alumina-layer, such as aluminide and catalyst metal particles directly disposed thereon, such as via thermal-growth. The catalyst may comprise a Pt/Sn atomic ratio of 1:4. Cross-flow, post-assembly and channels of complex, continuous or interior nature may be used. Methods of making catalysts in a microreactor channel, methods of making catalysts as such, methods of making a microchannel reactor and methods of conducting chemical reactions such as oxidative dehydrogenations and conversion of ethane to ethylene are also described. Superior performance, especially for high temperature reactions at high flow rates and low contact times, can be obtained from a catalyst formed by directly depositing a catalytic material onto a low surface area thermally-grown alumina layer, said layer preferably grown at a temperature from 1000-1100°C. The alumina layer is to be dense and substantially defect-free.
摘要:
This invention relates to a process for conducting a hydrocracking or a hydrotreating process in a microchannel reactor. This invention also relates to a process and apparatus for flowing a vapor and liquid into a plurality of microchannels in a microchannel processing unit.
摘要:
The invention provides methods, apparatus and systems in which there is partial boiling of a liquid in a mini-channel or microchannel for a length of at least 15 cm. The partial boiling removes heat from a Fischer-Tropsch reaction.
摘要:
The invention provided an apparatus for the production of VAM, comprising: a continuous reaction channel comprising at least 2 catalyst-free mixing zones alternating with at least 2 catalyst-containing reaction zones; and a cooling channel adjacent to the reaction channel, wherein the catalyst in the at least 2 catalyst-containing reaction zones comprises Pd and Au.
摘要:
The invention describes microchannel reactors comprising a metal substrate having an alumina-layer, such as aluminide and catalyst metal particles directly disposed thereon, such as via thermal-growth. The catalyst may comprise a Pt/Sn atomic ratio of 1:4. Cross-flow, post-assembly and channels of complex, continuous or interior nature may be used. Methods of making catalysts in a microreactor channel, methods of making catalysts as such, methods of making a microchannel reactor and methods of conducting chemical reactions such as oxidative dehydrogenations and conversion of ethane to ethylene are also described. Superior performance, especially for high temperature reactions at high flow rates and low contact times, can be obtained from a catalyst formed by directly depositing a catalytic material onto a low surface area thermally-grown alumina layer, said layer preferably grown at a temperature from 1000-1100°C. The alumina layer is to be dense and substantially defect-free.
摘要:
The disclosed invention relates to a process for converting a reactant composition comprising H 2 and Co to a product comprising at least one aliphatic hydrocarbon having at least about 5 carbon atoms, the process comprising: flowing the reactant composition through a microchannel reactor in contact with a Fischer-Tropsch catalyst to convert the reactant composition to the product, the microchannel reactor comprising a plurality of process microchannels containing the catalyst; transferring heat from the process microchannels to a heat exchanger; and removing the product from the microchannel reactor; the process producing at least about 0.5 gram of aliphatic hydrocarbon having at least about 5 carbon atoms per gram of catalyst per hour; the selectivity to methane in the product being less than about 25%.