Subcritical ethylic biodiesel production from wet animal fat and vegetable oils: A net energy ratio analysis

Sales, Emerson A.; Ghirardi, Maria L.; Jorquera, Orlando

doi:10.1016/j.enconman.2016.08.015

Title: Subcritical ethylic biodiesel production from wet animal fat and vegetable oils: A net energy ratio analysis

Journal Article · Tue Aug 23 00:00:00 EDT 2016 · Energy Conversion and Management

DOI:https://doi.org/10.1016/j.enconman.2016.08.015· OSTI ID:1353007

Sales, Emerson A. ^[1]; Ghirardi, Maria L. ^[2]; Jorquera, Orlando ^[3]

Federal Univ. of Bahia, Salvador (Brazil); Polytechnic School of UFBA, Salvador (Brazil)
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Federal Univ. of South Bahia-UFSB (Brazil); Polytechnic School of UFBA, Salvador (Brazil)

Ethylic transesterification process for biodiesel production without any chemical or biochemical catalysts at different subcritical thermodynamic conditions was performed using wet animal fat, soybean and palm oils as feedstock. The results indicate that 2 h of reaction at 240 °C with pressures varying from 20 to 45 bar was sufficient to transform almost all lipid fraction of the samples to biodiesel, depending on the reactor dead volume and proportions between reactants. Conversions of 100%, 84% and 98.5% were obtained for animal fat, soybean oil and palm oil, respectively, in the presence of water, with a net energy ration values of 2.6, 2.1 and 2.5 respectively. Finally, these results indicate that the process is energetically favorable, and thus represents a cleaner technology with environmental advantages when compared to traditional esterification or transesterification processes.

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Research Organization:: National Renewable Energy Laboratory (NREL), Golden, CO (United States)

Sponsoring Organization:: USDOE; NREL Fellows Program

Grant/Contract Number:: AC36-08GO28308

OSTI ID:: 1353007

Alternate ID(s):: OSTI ID: 1396985

Report Number(s):: NREL/JA-2700-66993

Journal Information:: Energy Conversion and Management, Vol. 141, Issue C; ISSN 0196-8904

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 18 works

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Title: Subcritical ethylic biodiesel production from wet animal fat and vegetable oils: A net energy ratio analysis

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