CAJ | 학술논문

新型吸附剂和变压吸附工艺开发是提高变压吸附装置性能的主要途径。本文综述了我国变压吸附制氧吸附剂改性及变压吸附制氧工艺研究进展，并指出目前存在问题：LiLSX型及Li+和其他离子的混合型吸附剂具有良好氧氮分离性能，但仍存在离子交换利用率低、成本高等问题；其他离子改性的吸附剂制备过程相对简单，但也有分离系数低或成本高等缺点；基于循环步骤改进的变压吸附制氧工艺优化研究大多以实验室规模制氧装置为主，未深入研究优化工艺的过程性能，难以有效地指导工业级制氧装置工艺优化；快速和双回流变压吸附制氧新工艺具有广阔发展前景，但相关研究欠深入；而多级和耦合变压吸附制氧工艺具有广阔应用前景，但存在流程复杂、能耗较高等缺点。指出未来制氧吸附剂和制氧工艺研究应进一步研究固相离子交换方法，提高LSX吸附剂Li+交换利用率，降低成本；开展优化工艺的过程性能研究，指导工业级制氧装置优化；加强快速变压吸附和双回流变压吸附制氧工艺研究，推动工程化应用。
신형흡부제화변압흡부공예개발시제고변압흡부장치성능적주요도경。본문종술료아국변압흡부제양흡부제개성급변압흡부제양공예연구진전，병지출목전존재문제：LiLSX형급Li+화기타리자적혼합형흡부제구유량호양담분리성능，단잉존재리자교환이용솔저、성본고등문제；기타리자개성적흡부제제비과정상대간단，단야유분리계수저혹성본고등결점；기우순배보취개진적변압흡부제양공예우화연구대다이실험실규모제양장치위주，미심입연구우화공예적과정성능，난이유효지지도공업급제양장치공예우화；쾌속화쌍회류변압흡부제양신공예구유엄활발전전경，단상관연구흠심입；이다급화우합변압흡부제양공예구유엄활응용전경，단존재류정복잡、능모교고등결점。지출미래제양흡부제화제양공예연구응진일보연구고상리자교환방법，제고LSX흡부제Li+교환이용솔，강저성본；개전우화공예적과정성능연구，지도공업급제양장치우화；가강쾌속변압흡부화쌍회류변압흡부제양공예연구，추동공정화응용。
Developing new adsorbents and PSA processes is an important way to improve performance of PSA devices. In this paper,progress of modified adsorbent and new processes of PSA producing oxygen are reviewed. Li-LSX or LSX exchanged with Li+ and other ions has ideal separation performance,but such adsorbents have problems of low ion exchange utilization and high cost. Preparation of other single or multi-ions modified adsorbents is relatively simple,but the disadvantages are low separation factor and high cost. Optimization process of modified PSA for oxygen production based on cycle step cannot provide guide for industrial oxygen devices because of laboratory scale data and less in-depth study. Rapid PSA and duplex PSA processes have broad development prospect for oxygen production,and should be paid enough attention. Moreover,multi-stage and coupled PSA processes have broad application prospect,but they have problems of complex process and high energy consumption.