Optimization of three-bed VPSA system for biogas upgrading
作者： Chunbiao Yin , Weina Sun , Huawei Yang , Donghui Zhang
DOI: 10.1016/J.CES.2015.06.022
关键词:
摘要: Abstract An optimization for biogas upgrading process by three-bed 12-step vacuum pressure swing adsorption (VPSA) was performed in this work. The raw gas composed of 60% CH4 and 40% CO2 used at 313.15 K with the 101.325 kPa. Co-current replacement heavy component step counter-current pressurization replaced exhaust were applied VPSA system. results indicated that adoption these two steps actually helped enhance recovery specific productivity CH4. objective pursued work evaluated combination energy consumption, effects decision variables on r-SQP algorithm. According to a stream 37 N m3/h, it possible obtain bio-methane purity 98.00%, 93.23% 0.1331 N m3/kg/h consumption 0.3697 kWh/kg produced methane.
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