Title:
PROCESS AND SYSTEM FOR PRODUCING BIOGAS FROM ANAEROBIC DIGESTION OF PLANT BIOMASS IN SOLID PHASE
Document Type and Number:
WIPO Patent Application WO/2012/153189
Kind Code:
A3
Abstract:
The present invention relates to a process for the production of biogas from lignocellulosic materials, comprising the steps of: (a) treatment of plant biomass by steam explosion; and (b) hydrolysis and anaerobic digestion o the material treated in step (a) by anaerobic bacteria; wherein steps (a) and (b) are carried out in separate reactors, step (b) is carried out in a single reactor and the products of step (b) are biogas and the digested biomass. Alternatively, the hydrolysis and the digestion can be carried out in separate reactors. The present invention further relates to a system for carrying out the process of producing biogas of the present invention, which comprises: (i) first reactor for the treatment of plant biomass by steam explosion; and (ii) second reactor for hydrolysis and anaerobic digestion of the material treated in step (i) by anaerobic bacteria. In a preferred embodiment, both process and system of the invention can further comprise, in the hydrolysis and anaerobic digestion reactor, cellulase enzymes with or without addition of xylanases. In an alternative configuration, the hydrolysis can take place in separate reactors.
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Inventors:
CORNELIUS VAN HAANDEL ADRIANUS (BR)
RODRIGUES BARBOSA CLAUDIA (BR)
RODRIGUES BARBOSA CLAUDIA (BR)
Application Number:
PCT/IB2012/001034
Publication Date:
January 17, 2013
Filing Date:
May 25, 2012
Export Citation:
Assignee:
CETREL S A (BR)
CORNELIUS VAN HAANDEL ADRIANUS (BR)
RODRIGUES BARBOSA CLAUDIA (BR)
CORNELIUS VAN HAANDEL ADRIANUS (BR)
RODRIGUES BARBOSA CLAUDIA (BR)
International Classes:
C12P5/02; C02F3/28; D21C1/02
Domestic Patent References:
| WO2011017292A1 | 2011-02-10 | |||
| WO2009108773A2 | 2009-09-03 |
Other References:
M. BALAT: "Production of bioethanol from lignocellulosic materials via the biochemical pathway: A review", ENERGY CONVERSION AND MANAGEMENT, vol. 52, 6 September 2010 (2010-09-06), pages 858 - 875, XP027505067
BAUER A ET AL: "Analysis of methane potentials of steam-exploded wheat straw and estimation of energy yields of combined ethanol and methane production", JOURNAL OF BIOTECHNOLOGY, ELSEVIER SCIENCE PUBLISHERS, AMSTERDAM, NL, vol. 142, no. 1, 1 June 2009 (2009-06-01), pages 50 - 55, XP026139436, ISSN: 0168-1656, [retrieved on 20090206], DOI: 10.1016/J.JBIOTEC.2009.01.017
DATAR ET AL: "Hydrogen production from the fermentation of corn stover biomass pretreated with a steam-explosion process", INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, ELSEVIER SCIENCE PUBLISHERS B.V., BARKING, GB, vol. 32, no. 8, 24 May 2007 (2007-05-24), pages 932 - 939, XP022094535, ISSN: 0360-3199, DOI: 10.1016/J.IJHYDENE.2006.09.027
WANG J ET AL: "Anaerobic digestibility and fiber composition of bulrush in response to steam explosion", BIORESOURCE TECHNOLOGY, ELSEVIER BV, GB, vol. 101, no. 17, 1 September 2010 (2010-09-01), pages 6610 - 6614, XP027052569, ISSN: 0960-8524, [retrieved on 20100409]
KAPARAJU P ET AL: "Effect of reactor configuration on biogas production from wheat straw hydrolysate", BIORESOURCE TECHNOLOGY, ELSEVIER BV, GB, vol. 100, no. 24, 1 December 2009 (2009-12-01), pages 6317 - 6323, XP026520477, ISSN: 0960-8524, [retrieved on 20090731], DOI: 10.1016/J.BIORTECH.2009.06.101
BAUER A ET AL: "Analysis of methane potentials of steam-exploded wheat straw and estimation of energy yields of combined ethanol and methane production", JOURNAL OF BIOTECHNOLOGY, ELSEVIER SCIENCE PUBLISHERS, AMSTERDAM, NL, vol. 142, no. 1, 1 June 2009 (2009-06-01), pages 50 - 55, XP026139436, ISSN: 0168-1656, [retrieved on 20090206], DOI: 10.1016/J.JBIOTEC.2009.01.017
DATAR ET AL: "Hydrogen production from the fermentation of corn stover biomass pretreated with a steam-explosion process", INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, ELSEVIER SCIENCE PUBLISHERS B.V., BARKING, GB, vol. 32, no. 8, 24 May 2007 (2007-05-24), pages 932 - 939, XP022094535, ISSN: 0360-3199, DOI: 10.1016/J.IJHYDENE.2006.09.027
WANG J ET AL: "Anaerobic digestibility and fiber composition of bulrush in response to steam explosion", BIORESOURCE TECHNOLOGY, ELSEVIER BV, GB, vol. 101, no. 17, 1 September 2010 (2010-09-01), pages 6610 - 6614, XP027052569, ISSN: 0960-8524, [retrieved on 20100409]
KAPARAJU P ET AL: "Effect of reactor configuration on biogas production from wheat straw hydrolysate", BIORESOURCE TECHNOLOGY, ELSEVIER BV, GB, vol. 100, no. 24, 1 December 2009 (2009-12-01), pages 6317 - 6323, XP026520477, ISSN: 0960-8524, [retrieved on 20090731], DOI: 10.1016/J.BIORTECH.2009.06.101
Attorney, Agent or Firm:
DANNEMANN, SIEMSEN, BIGLER & IPANEMA MOREIRA (70Botafog, -040 Rio de Janeiro - RJ, BR)
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