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Title: Biogas production from Jatropha curcas press-cake

Abstract

Seeds of the tropical plant Jatropha curcas (purge nut, physic nut) are used for the production of oil. Several methods for oil extraction have been developed. In all processes, about 50% of the weight of the seeds remain as a press cake containing mainly protein and carbohydrates. Investigations have shown that this residue contains toxic compounds and cannot be used as animal feed without further processing. Preliminary experiments have shown that the residue is a good substrate for biogas production. Biogas formation was studied using a semicontinous upflow anaerobic sludge blanket (UASB) reactor; a contact-process and an anaerobic filter each reactor having a total volume of 110 L. A maximum production rate of 3.5 m{sup 3} m{sup -3} d{sup -1} was obtained in the anaerobic filter with a loading rate of 13 kg COD m{sup -3} d{sup -1}. However, the UAS reactor and the contact-process were not suitable for using this substrate. When using an anaerobic filter with Jatropha curcas seed cake as a substrate, 76% of the COD was degraded and 1 kg degraded COD yielded 355 L of biogas containing 70% methane. 28 refs., 3 figs., 4 tabs.

Authors:
; ;  [1]
  1. Graz Technical Univ. (Austria); and others
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
576250
Report Number(s):
CONF-960539-
Journal ID: ABIBDL; ISSN 0273-2289; TRN: 98:000980-0024
Resource Type:
Journal Article
Journal Name:
Applied Biochemistry and Biotechnology
Additional Journal Information:
Journal Volume: 63-65; Conference: 18. symposium on biotechnology for fuels and chemicals, Gatlinburg, TN (United States), 5-9 May 1996; Other Information: PBD: Spr 1997
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; CARBOHYDRATES; METHANE; PROCESSING; SEEDS; BIOMASS; PLANTS; FILTERS; RENEWABLE ENERGY SOURCES

Citation Formats

Staubmann, R, Guebitz, G M, and Lafferty, R M. Biogas production from Jatropha curcas press-cake. United States: N. p., 1997. Web. doi:10.1007/BF02920446.
Staubmann, R, Guebitz, G M, & Lafferty, R M. Biogas production from Jatropha curcas press-cake. United States. https://doi.org/10.1007/BF02920446
Staubmann, R, Guebitz, G M, and Lafferty, R M. 1997. "Biogas production from Jatropha curcas press-cake". United States. https://doi.org/10.1007/BF02920446.
@article{osti_576250,
title = {Biogas production from Jatropha curcas press-cake},
author = {Staubmann, R and Guebitz, G M and Lafferty, R M},
abstractNote = {Seeds of the tropical plant Jatropha curcas (purge nut, physic nut) are used for the production of oil. Several methods for oil extraction have been developed. In all processes, about 50% of the weight of the seeds remain as a press cake containing mainly protein and carbohydrates. Investigations have shown that this residue contains toxic compounds and cannot be used as animal feed without further processing. Preliminary experiments have shown that the residue is a good substrate for biogas production. Biogas formation was studied using a semicontinous upflow anaerobic sludge blanket (UASB) reactor; a contact-process and an anaerobic filter each reactor having a total volume of 110 L. A maximum production rate of 3.5 m{sup 3} m{sup -3} d{sup -1} was obtained in the anaerobic filter with a loading rate of 13 kg COD m{sup -3} d{sup -1}. However, the UAS reactor and the contact-process were not suitable for using this substrate. When using an anaerobic filter with Jatropha curcas seed cake as a substrate, 76% of the COD was degraded and 1 kg degraded COD yielded 355 L of biogas containing 70% methane. 28 refs., 3 figs., 4 tabs.},
doi = {10.1007/BF02920446},
url = {https://www.osti.gov/biblio/576250}, journal = {Applied Biochemistry and Biotechnology},
number = ,
volume = 63-65,
place = {United States},
year = {Wed Dec 31 00:00:00 EST 1997},
month = {Wed Dec 31 00:00:00 EST 1997}
}