Process for enriched combustion using solid electrolyte ionic conductor systems

摘要

A process for separating a feed gas stream (1) into an oxygen-enriched gas stream (10) which is used in a combustor (14) and an oxygen-depleted gas stream (8). The feed gas stream (10) is compressed (2), and oxygen is separated from the compressed feed gas stream using an ion transport module (35) including an ion transport membrane (7) having a retentate side (7a) and a permeate side (7b). The permeate side (7b) of the ion transport membrane (7) is purged (9) with at least a portion of a combustion product gas stream obtained from the combustion in the combustor (14) of the gas stream exiting the permeate side (10) of the ion transport module (35).