Abstract:
PROBLEM TO BE SOLVED: To provide, by targeting an integrated reactor for simultaneously inducing an exothermic reaction and an endothermic reaction within a microchannel, a method for very controllably generating and removing heat.SOLUTION: The provided method for simultaneously inducing an exothermic reaction and an endothermic reaction within an integrated reactor uses an integrated reactor constituted by adjacently configuring, via an interposing heat-conductive reaction chamber wall, an exothermic reaction chamber 12 possessing exothermic reaction catalysts 14 and 16 and an open channel 18 and an endothermic reaction chamber 15 possessing an endothermic reaction catalyst 17 and an open channel 19 so as to circulate, through the exothermic reaction chamber, an exothermically reactive composition, to circulate, through the endothermic reaction chamber, an endothermically reactive composition, and to transmit, to the endothermic reaction chamber, the reaction heat within the exothermic reaction chamber at a heat flux rate, per unit volume, of at least 1 W/cc.
Abstract:
PROBLEM TO BE SOLVED: To provide a method and a reactor capable of reducing heat loss when supplying heat to an endothermic reaction conducted in a micro reactor. SOLUTION: Heat is supplied to an endothermic reaction chamber with small heat loss by circulating an endothermic reaction composition to an endothermic reaction chamber 15 which contains an endothermic reaction catalyst 17, supplying fuel and oxygen to an exothermic reaction chamber 12 which is arranged in vicinity of the endothermic reaction chamber 15 via a chamber wall with heat conductivity, burning fuel by the action of endothermic reaction catalysts 14, 16 which are included in the endothermic reaction chamber, and transporting generated heat to the endothermic reaction chamber through the chamber wall with heat conductivity. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a small-sized, lightweight, effective and active micro channel heat exchanger used for a chemical process. SOLUTION: An active micro channel heat exchanger constituted by a plurality of assemblies each containing an exothermic reactor 100, an exhaust hood 108, and a heat exchange chamber 114 and having a micro channel, comprises a plurality of valves 508 which enables at least one assembly out of a plurality of the assemblies to be removed from a line for purification or regeneration while keeping the remaining assemblies operational. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
Integrerte forbrenningsreaktorer (ICR'er) og fremgangsmåter til fremstilling av integrerte forbrenningsreaktorer beskrives, hvor forbrenningskamre (eller kanaler) (12) er i direkte varmekontakt med reaksjonskamre for en endoterm reaksjon (115). Meget gode resultater ble oppnådd for forbrenningskamre som omfattet en spalte (18,19) for fri strømning gjennom kammeret. Spesielle reaktorutforminger beskrives også. Fremgangsmåter til utførelse av reaksjoner i integrerte forbrenningsreaktorer beskrives og resultater presenteres. Noen av disse fremgangsmåter kjennetegnes ved uventede og meget gode resultater.
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.
Abstract:
The present invention provides chemical reactors and reaction chambers and methods for conducting catalytic chemical reactions having gas phase reactants. In preferred embodiments, these reaction chambers and methods include at least one porous catalyst material that has pore sizes large enough to permit molecular diffusion within the porous catalyst material.
Abstract:
Integrated Combustion Reactors (ICRs) and methods of making ICRs are described in which combustion chambers (or channels) (12) are in direct thermal contact to reaction chambers for an endothermic reaction (115). Superior results were achieved for combustion chambers which contained a gap (18, 19) for free flow through the chamber. Particular reactor designs are also described. Processes of conducting reactions in integrated combustion reactors are described and results presented. Some of these processes are characterized by unexpected and superior results.
Abstract:
Método de reformado con vapor de hidrocarburo, comprendiendo:paso de una corriente de reactivos comprendiendo vapor e hidrocarburo en al menos una cámara de reacción;donde la cámara de reacción tiene un volumen interno con dimensiones de altura de cámara, anchura decámara y longitud de cámara;donde la cámara tiene una longitud mayor de 1 cm;donde la altura de cámara o anchura de cámara es de 2 mm o menos;donde la cámara de reacción tiene una entrada y una salida con una trayectoria de flujo en masa contiguodesde la entrada hasta la salida;donde la cámara de reacción está en contacto térmico a través de una pared de cámara de reacción con unacámara de reacción exotérmica;transferencia de calor desde la cámara de reacción exotérmica hasta la cámara de reacción a través de lapared de cámara de reacción;donde el método es controlado bajo condiciones de manera que el hidrocarburo tiene un tiempo de contactoinferior a 300 ms;donde la corriente de reactivos se convierte en un flujo de producto; ydonde al menos 70% de la conversión de equilibrio del hidrocarburo entrando en la cámara de reacción seconvierte a hidrógeno, monóxido de carbono o dióxido de carbono.
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.