Biogas quality upgrading by carbon mineralization with calcium hydroxide solution in continuous bubble column reactor

S Madhania, K Kusdianto, S Machmudah… - AIP Conference …, 2020 - pubs.aip.org
Biogas is produced when certain kinds of bacteria digest organic substances in an
anaerobic environment. Typical raw biogas consists of about two thirds of methane (CH4)
and one third of carbon dioxide (CO2). Even though raw biogas can be used directly to
generate power, but the large volume of CO2 reduces the heating value of the gas,
increasing compression and transportation costs and limiting economic feasibility. In this
work, the raw biogas from small scale digester was upgraded by counter-current contacting …
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