HYDROGEN SEPARATION PROCESS

摘要

A method for separating a hydrogen-rich product stream from a feed stream comprising hydrogen and a carbon-containing gas, comprising feeding the stream at an inlet pressure greater than atmospheric pressure greater than 200QC to a hydrogen separation membrane system, or an integrated water gas shift/hydrogen separation membrane system comprising a membrane that is selectively permeable to hydrogen, and producing a hydrogen-rich product stream on the permeate side of the membrane and a carbon dioxide-rich product stream on the raffinate side of the membrane. Pretreating a membrane by heating the membrane to a desired operating temperature and feed pressure in a flow of inert gas sufficient for the membrane to mechanically deform, decreasing the feed pressure to ambient pressure, and flowing an oxidizing agent across the membrane. Supporting a hydrogen separation membrane system by selecting a hydrogen separation membrane system comprising one or more catalyst outer layers deposited on a hydrogen transport membrane layer and sealing the hydrogen separation membrane system to a porous support.