74.
    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.

    75.
    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.

    79.
    发明专利
    未知

    公开(公告)号:BR0210460A

    公开(公告)日:2006-10-10

    申请号:BR0210460

    申请日:2002-06-17

    Abstract: The present invention provides methods for making N-methylpyrrolidine and analogous compounds via hydrogenation. Novel catalysts for this process, and novel conditions/yields are also described. Other process improvements may include extraction and hydrolysis steps. Some preferred reactions take place in the aqueous phase. Starting materials for making N-methylpyrrolidine may include succinic acid, N-methylsuccinimide, and their analogs.

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