Study for the Bio-CNG Recovery of Methane Gas in the Anaerobic Co-digestion Using Malaysian POME (Palm Oil Mill Effluent)

Palm oil mill industry generates a large amount of POME (palm oil mill effluent) and EFB (empty fruit bunch) as a byproduct. Biogas production from anaerobic co-digestion of POME with EFB was investigated under mesophilic condition. High methane yield and high biodegradability were achieved as mixin...

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Bibliographic Details
Published in:Biotechnology and bioprocess engineering 2021, 26(3), , pp.435-446
Main Author: Park, Young Gyu
Format: Article
Language:English
Subjects:
Anaerobic conditions
Anaerobic digestion
Biodegradability
Biodegradation
Biofuels
Biogas
Biotechnology
Carbon dioxide
Chemistry
Chemistry and Materials Science
Digestion
Effluents
Ethylenediaminetetraacetic acids
Fuels
Hydrogen sulfide
Industrial and Production Engineering
Iron
Methane
Palm oil
Refineries
Refuse as fuel
Research Paper
Vegetable oils
생물공학
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Summary:Palm oil mill industry generates a large amount of POME (palm oil mill effluent) and EFB (empty fruit bunch) as a byproduct. Biogas production from anaerobic co-digestion of POME with EFB was investigated under mesophilic condition. High methane yield and high biodegradability were achieved as mixing POME with EFB material applied into an alkaline pretreatment method. The raw biogas from anaerobic co-digestion of POME and EFB contained 60% CH 4 , 34% CO 2 , and 200 ppm H 2 S and was available at 1.013 bar with a production rate of 48–65 m 3 /h. The biomethane has not utilized as a bio-CNG gas in Southeast Asian region yet. This paper aims to identify the potential of POME biogas into purified bio-CNG gas. The location, capacity and technology of biogas refinery plant were identified based on biogas production of Malaysian palm oil mill plant. The chelate-iron (EDTA-iron solution) process as a pre-treatment method of raw biogas is among the most promising techniques for the hydrogen sulfide (H 2 S) removal of 99%. The energy contents of biogas could be significantly enhanced by upgrading it to CNG fuel. A pilot-scale separation plant based on cellulosic spiral wound membrane for upgrading biogas to CNG fuel quality was constructed as having a capacity of 30 m 3 /h and operated at the biogas plant. The result shows that purifying yield contained 98% CH 4 , 2% CO 2 , 0.004% H 2 O, and 1 ppm H 2 S.
ISSN:1226-8372
1976-3816
DOI:10.1007/s12257-019-0401-2