摘要:
A method and apparatus for producing heat used in a synthesis gas production process is provided. The disclosed method and apparatus include a plurality of tubular oxygen transport membrane elements adapted to separate oxygen from an oxygen containing stream contacting the retentate side of the membrane elements. The permeated oxygen is combusted with a hydrogen containing synthesis gas stream contacting the permeate side of the tubular oxygen transport membrane elements thereby generating a reaction product stream and radiant heat. The present method and apparatus also includes at least one catalytic reactor containing a catalyst to promote the steam reforming reaction wherein the catalytic reactor is surrounded by the plurality of tubular oxygen transport membrane elements. The view factor between the catalytic reactor and the plurality of tubular oxygen transport membrane elements radiating heat to the catalytic reactor is greater than or equal to 0.5.
摘要:
A method and apparatus for producing a synthesis gas product having one or more oxygen transport membrane elements (2) thermally coupled to one or more catalytic reactors (3) such that heat generated from the oxygen transport membrane element supplies endothermic heating requirements for steam methane reforming reactions occurring within the catalytic reactor through radiation and convention heat transfer. A hydrogen containing stream (34) preferably containing no more than 20 percent methane is combusted within the oxygen transport membrane element to produce the heat and a heated combustion product stream (36). The heated combustion product stream (36) is combined with a reactant stream (38) to form a combined stream (40) that is subjected to the reforming within the catalytic reactor (3). The apparatus may include modules in which tubular membrane elements surround a central reactor tube.