Open AccessSimulation of pressurized water scrubbing process for biogas purification using Aspen Plus
Author(s) -
N Abu Seman,
N. Harun
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/702/1/012040
Subject(s) - data scrubbing , biogas , anaerobic digestion , environmental science , waste management , methane , carbon dioxide , pulp and paper industry , process engineering , chemistry , engineering , organic chemistry
Biogas produced from anaerobic digestion process has a major amount of biomethane (bioCH 4 ), carbon dioxide (CO 2 ), and traces amount of impurities. It must undergo biogas cleaning first to remove the impurities depending on the requirement of the applications. Pressurized water scrubbing is the most applicable method for removing CO 2 because of its simplicity, low cost, and low toxicity. This study aims to develop a pressurized water scrubbing process model for biogas purification using Aspen Plus software. Several process parameters such as absorber column pressure and liquid to gas (L/G) ratios were varied to investigate their effects on bioCH 4 purity and percentage of CO 2 removal. The simulated results show good agreement with previous work and agreed well with the typical standard concentration of bioCH 4 of over 95% to be used as vehicle fuels or in a gas grid.