Autothermic reactor comprising oxygen ion conducting dense...

B - Operations – Transporting – 01 – D

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Details

B01D 53/22 (2006.01) B01D 53/88 (2006.01) B01D 71/02 (2006.01) B01J 8/00 (2006.01) B01J 19/24 (2006.01) C01B 3/34 (2006.01) C01B 3/38 (2006.01) C01B 3/40 (2006.01)

Patent

CA 2287380

The present invention relates to devices (11) for simultaneously conducting exothermic (31) and endothermic (41) chemical conversions with transfer of heat therebetween. More particularly, this invention relates to autothermic modules (11) using oxygen ion-conducting dense ceramic membranes (35) to selectively separate oxygen from an oxygen- containing gas and supply is directly to partial combustion (31) of gaseous organic compounds. Processes using autothermic modules in accordance with this invention are advantageously used for production of synthesis gas comprising carbon monoxide and molecular hydrogen which synthesis gas is substantially free of deleterious and/or inert gaseous diluents such as nitrogen. In particular, they are used for conversions within the integral autothermic module, of natural gas or other forms of gaseous lower alkanes to synthesis gas by means of partial combustion followed by steam and/or carbon dioxide reforming.

La présente invention concerne des dispositifs (11) effectuant simultanément des transformations chimiques endothermiques (41) et exothermiques (31) avec transfert de chaleur entre elles. L'invention concerne plus particulièrement des modules autothermiques (11) utilisant des membranes de céramique dense conductrices d'ions d'oxygène de façon à séparer sélectivement l'oxygène d'un gaz contenant de l'oxygène et à l'acheminer directement vers une combustion partielle (31) de composés organiques gazeux. L'invention concerne également des procédés utilisant des modules autothermiques avantageusement utilisés pour la production de gaz de synthèse comprenant du monoxyde de carbone et de l'hydrogène moléculaire, lequel gaz de synthèse est sensiblement exempt de diluants gazeux inertes et/ou nocifs tels que l'azote. Les réacteurs chimiques sont utilisés, en particulier, pour des transformations dans le module autothermique intégral, de gaz naturel ou d'autres formes d'alcanes inférieurs gazeux en gaz de synthèse par l'intermédiaire d'une combustion partielle suivie d'un reformage à la vapeur ou au dioxyde de carbone.

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