Patent ID: 6740258
Filing Date: 2004-05-25
Classification: C01B,Y02P

Abstract:
A process for the production of at least one member selected from the group consisting of a synthesis gas and a reducing gas by means of a primary reformer heated on the shell side and operated in conjunction with a pressure swing adsorption unit to yield at least one member selected from the group consisting of pure hydrogen and reducing gas from the synthesis gas, said process comprising the steps of:heating a feed gas in a primary reformer to produce a raw synthesis gas; fueling said primary reformer by feeding to it a main fuel gas stream, which splits into a fuel gas regulatory stream and an operating gas stream; treating the raw synthesis gas to produce a processed synthesis gas, and feeding the processed synthesis gas to a pressure swing adsorption unit wherein is formed a waste desorption gas; removing said waste desorption gas from the pressure swing adsorption unit and feeding it to the inlet side of an ejector; fueling said ejector by feeding to it, the operating gas stream; admixing said waste desorption gas with the operating gas stream in the ejector, to yield a gas mixture stream dividable into first and second sub-streams; and feeding said first sub-stream to a fuel tank supplying the primary reformer, and/or feeding said second sub-stream to admix with the fuel gas regulatory stream.