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Acid-based hydrolysis processes for ethanol from lignocellulosic materials: A review.
Högskolan i Borås, Institutionen Ingenjörshögskolan.ORCID-id: 0000-0003-4887-2433
Högskolan i Borås, Institutionen Ingenjörshögskolan.
2007 (Engelska)Ingår i: BioResources, ISSN 1930-2126, E-ISSN 1930-2126, Vol. 2, nr 3, s. 472-499Artikel i tidskrift (Refereegranskat)
Abstract [en]

Bioethanol is nowadays one of the main actors in the fuel market. It is currently produced from sugars and starchy materials, but lignocelluloses expect to be major feedstocks for ethanol production in the future. Two processes are developed in parallel for utilization of lignocelluloses to ethanol, “acid-based” and “enzyme-based” processes. The current article is dedicated to review the progress of “acid-based-hydrolysis” process. This process was industrially used in 1940s, during wartime, but was not economically competitive afterward. However, intensive research and development on its technology in the last three decades and expanding ethanol market may revive the process in large scale once again. In this paper, ethanol market, composition of lignocellulosic materials, concentrated- and dilute-acid pretreatment and hydrolysis, plug-flow, percolation, counter-current and shrinking-bed hydrolysis reactors, fermentation of hexoses and pentoses, effects of fermentation inhibitors, downstream processing, wastewater treatment, analytical methods used, and the current commercial status of the acid-based ethanol processes is reviewed.

Ort, förlag, år, upplaga, sidor
North Carolina State University , 2007. Vol. 2, nr 3, s. 472-499
Nyckelord [en]
lignocellulosic materials, dilute-acid hydrolysis, ethanol, fermentation
Nyckelord [sv]
Energi och material
Nationell ämneskategori
Industriell bioteknik
Identifikatorer
URN: urn:nbn:se:hb:diva-2296Lokalt ID: 2320/2959OAI: oai:DiVA.org:hb-2296DiVA, id: diva2:870386
Tillgänglig från: 2015-11-13 Skapad: 2015-11-13 Senast uppdaterad: 2017-12-01

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Taherzadeh, M.J.Karimi, K.

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