Upgrade of Methane from Landfill Gas by Pressure Swing Adsorption
作者： Simone Cavenati , Carlos A. Grande , Alírio E. Rodrigues
DOI: 10.1021/EF050072H
关键词: Waste management 、 Adsorption 、 Natural gas 、 Boiler blowdown 、 Chemistry 、 Pressure swing adsorption 、 Purge 、 Landfill gas 、 Chromatography 、 Methane 、 Biogas
摘要: This work focuses on the production of pipeline grade methane from landfill gas (LFG). Vacuum pressure swing adsorption technology using a kinetic adsorbent, Carbon Molecular Sieve 3K (Takeda), was employed for separation methane−carbon dioxide mixture. Adsorption equilibrium and kinetics carbon are reported at 298, 308, 323 to model adsorption-based process. A four-step Skarstrom-type cycle comprising pressurization, feed, counter-current blowdown, purge with product. Co-current pressurization feed stream product were evaluated. The mixture CH4 (55%)−CO2 (45%) tested two different cycles: stream, product, results indicate that purity higher than 96% can be obtained recovery 75%. difference ...
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