A cryogenic air separation process based on self-heat recuperation for oxy-combustion plants
作者： Qian Fu , Yasuki Kansha , Chunfeng Song , Yuping Liu , Masanori Ishizuka
DOI: 10.1016/J.APENERGY.2015.03.039
关键词:
摘要: Abstract An advanced cryogenic air separation process for oxy-combustion is proposed, based on self-heat recuperation technology. In contrast to double columns in the conventional process, a single distillation column only used proposed process. By using technology, heat of N2 product gas from top recirculated by exchanging with liquid O2 bottom and feed streams, largely reducing energy requirement. The simulation results showed that requirement was reduced 20.2% compared when producing low purity (95 mol%). influence compressor efficiency, minimum temperature difference main condenser were also investigated.
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