关键词：制氢；曝光；氢硫化物；金属
摘 要：Air Products and Chemicals, Inc., is developing the sour pressure swing adsorption (PSA) technology which can be used to reject acid gas components (hydrogen sulfide (H(sub 2)S) and carbon dioxide (CO(sub 2))) from sour syngas streams such as coal gasification syngas. In the current work, tests were conducted to investigate the impact of continuous exposure of real sour syngas and dilute levels of hydrochloric acid (HCl) and ammonia (NH(sub 3)) on the preferred adsorbent of that process. The results show a modest (approximately 10-15) decrease in CO(sub 2) adsorption capacity after sour syngas exposure, as well as deposition of metals from carbonyl decomposition. Continuous exposure to HCl and NH3 yield a higher degree of CO2 capacity degradation (up to 25). These tests represent worst-case approaches since the exposure is continuous and the HCl and NH3 levels are relatively high compare to an industrial sour syngas stream. Long-term PSA tests are needed to unequivocally evaluate the impact of cyclic exposure to these types of streams.