Journal
INTERNATIONAL CONFERENCE ON SUSTAINABLE MATERIALS PROCESSING AND MANUFACTURING (SMPM 2017)
Volume 7, Issue -, Pages 639-646Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.promfg.2016.12.095
Keywords
absorption; concentration; purification; removal efficiency
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Funding
- South African National Energy Development Institute (SANEDI)
- University of Johannesburg's Global Excellence Scholarship (GES)
- City of Johannesburg (CoJ)
- University of Johannesburg's Process Energy and Environmental Technology Station (PEETS)
- Botswana International University of Science and Technology
- UJ Bioenergy research team
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Biogas is produced from anaerobic digestion of organic biodegradable materials. However, its application is limited as it contains impurities such as carbon dioxide (CO2), hydrogen sulphide (H2S), and other trace gases. Chemical absorption is capable of producing gas of high methane content above 95% and has no methane losses hence it's widely used on large scale applications. Sodium hydroxide was used for cleaning the biogas in this study at a concentration of 1M, 2M, and 3M. The effect of concentration on absorption and CO2 removal efficiency was studied. It was observed that an increase in concentration lead to an increase in the absorption rate and the removal efficiency respectively. The highest removal efficiency was recorded to be 66%. (C) 2017 Published by Elsevier B.V.
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