MICROCHANNEL REACTORS WITH TEMPERATURE CONTROL

    公开(公告)号:CA2478333C

    公开(公告)日:2013-10-15

    申请号:CA2478333

    申请日:2003-03-11

    Abstract: Microchannel devices and method of use are disclosed wherein a reaction microchamber (52) is in thermal contact with a heat exchange channel (61). An equilibrium limited exothermic chemical process occurs in the reaction microchamber (52). Sufficient heat is transferred to the heat exchange channels to substantially lower the temperature in the reaction microchamber (52) down its length to substantially increase at least one performance parameter of the exothermic chemical process relative to isothermal operation. Optionally, an endothermic reaction occurs in the heat exchange channel (61) which is sustained by the exothermic chemical process occurring the exothermic reaction chamber. Both the reaction chamber (52) and the heat exchange channel (61) can be of micro dimension. Catalyst (75) can be provided in the microchamber (52) in sheet form such that reactants flow by the catalyst sheet. A microchannel reactor (100) can be formed by integrally bonding an alternating stack of thin recessed sheets wherein the recesses in the sheets define the flow paths.

    12.
    发明专利
    未知

    公开(公告)号:AT556769T

    公开(公告)日:2012-05-15

    申请号:AT05007860

    申请日:2000-08-17

    Abstract: The present invention relates to methods for gas phase reactant catalytic reactions. In particular the present invention relates to a method of hydrocarbon steam reforming, comprising: passing a reactant stream comprising steam and hydrocarbon into at least one reaction chamber; wherein the reaction chamber has an internal volume having dimensions of chamber height, chamber width and chamber length; wherein the chamber has a length of greater than 1 cm; wherein the chamber height or chamber width is 2 mm or less; wherein the reaction chamber is in thermal contact through a reaction chamber wall with an exothermic reaction chamber; transferring heat from the exothermic reaction chamber to the reaction chamber through the reaction chamber wall at a rate such that heat flux between the reaction chamber and the exothermic reaction chamber is at least 0.6 W per cubic centimeter of the reaction chamber wall; wherein the method is controlled under conditions such that the hydrocarbon has a contact time of less than 300 ms; wherein the reactant stream is converted to a product stream; and wherein at least 70% of the equilibrium conversion of the hydrocarbon entering the reaction chamber is converted to hydrogen, carbon monoxide or carbon dioxide.

    13.
    发明专利
    未知

    公开(公告)号:NO330291B1

    公开(公告)日:2011-03-21

    申请号:NO20023081

    申请日:2002-06-26

    Abstract: The present invention relates to a process for the steam reforming of a hydrocarbon, comprising: passing a feed stream comprising hydrocarbon gas and steam into at least one reaction chamber; said reaction chamber comprising a catalyst that catalyzes the reaction of said hydrocarbon gas and steam to produce a gaseous mixture comprising at least carbon monoxide and hydrogen gas; wherein the contact time of the reactant with the catalyst is less than 0.3 seconds; transferring heat from at least one heat exchanger into the at least one reaction chamber; and producing more than 0.01 SLPM of hydrogen gas per cubic centimeter of reactor volume, where reactor volume is defined as the sum of the volume of the reaction chamber(s) and heat exchange chamber(s) including the volume of chamber walls.

    REDES DE PROCESO DE MICROSISTEMAS.
    19.
    发明专利

    公开(公告)号:MXPA02012114A

    公开(公告)日:2003-04-25

    申请号:MXPA02012114

    申请日:2001-05-30

    Inventor: WEGENG ROBERT S

    Abstract: Se describen varios aspectos de aplicaciones de redes de procesos de microsistemas. El diseno de muchos tipos de microsistemas se puede mejorar mediante operaciones de procesos unitarios u operaciones de ortocascada de masa, y calor. Tambien se describen microsistemas que tienen intercambiadores de calor de microcanales exergeticamente eficientes. Tambien se proporcionan descripciones detalladas de varias caracteristicas de diseno en sistemas de microcomponentes. La figura mas representativa de la invencion es la numero 1.

Patent Agency Ranking