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Biodiesel production using lipase immobilized onto chitin in fixed bed reactor

Biodiesel is gaining considerable attention in recent years as a greener candidate to replace petroleum-based diesel. Biodiesel can be synthesized through a transesterification process of vegetable oils using lipase as a biocatalyst, but industrially the process remains economically not yet feasible...

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Main Authors: Sulfitri, Suryani, Ani, Suhendar, Dadang, Wahjono, Edi, Waltam, Deden Rosid, Haniyya, Sriherwanto, Catur
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Suryani, Ani
Suhendar, Dadang
Wahjono, Edi
Waltam, Deden Rosid
Haniyya
Sriherwanto, Catur
description Biodiesel is gaining considerable attention in recent years as a greener candidate to replace petroleum-based diesel. Biodiesel can be synthesized through a transesterification process of vegetable oils using lipase as a biocatalyst, but industrially the process remains economically not yet feasible. Thus, this study on biodiesel production was carried out using commercial lipase immobilized on chitin in a fixed bed reactor to obtain optimum conditions. Immobilized lipase with high immobilization degree was obtained through activation of chitin using glutaraldehyde for 1.5-hour, 0.22 mg/mL lipase concentrations, and 18 hours incubation time. The immobilized lipase was then used in the transesterification process to convert palm oil into methyl ester. The transesterification temperatures and the oil-to-methanol molar ratios were varied between 40 to 55 degrees Celsius and 1:3 to 1:6, respectively. The highest methyl ester conversion yield after 8 hours of reaction was obtained at 45 degrees Celsius using the oil-to-methanol molar ratio of 1:4. The stability of the immobilized lipase was investigated through a transesterification reaction in a fixed bed reactor for 50 hours without stopping. The highest conversion of methyl ester was obtained at the twelfth hour with a yield of 67.95%.
doi_str_mv 10.1063/5.0182792
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identifier ISSN: 0094-243X
ispartof AIP conference proceedings, 2023, Vol.2972 (1)
issn 0094-243X
1551-7616
language eng
recordid cdi_proquest_journals_2906940435
source American Institute of Physics:Jisc Collections:Transitional Journals Agreement 2021-23 (Reading list)
subjects Biodiesel fuels
Chitin
Fixed bed reactors
Fixed beds
Lipase
Methanol
Palm oil
Transesterification
Vegetable oils
title Biodiesel production using lipase immobilized onto chitin in fixed bed reactor
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