Dry pretreatment of lignocellulose with extremely low steam and water usage for bioethanol production.
Bioresour Technol
; 102(6): 4480-8, 2011 Mar.
Article
en En
| MEDLINE
| ID: mdl-21277774
ABSTRACT
Two rarely noticed but important parameters of the dilute sulfuric acid pretreatment of lignocellulose biomass, the feedstock filling ratio to the pretreatment reactor and the solids/liquid presoaking ratio, were extensively studied. The effects of the two parameters on the steam consumption, waste water generation, and pretreatment efficiency were investigated. At the full filling ratio and high solids/liquid presoaking ratio, this "dry" pretreatment method provided at least the following advantages (1) the steam consumption was significantly reduced; (2) no aqueous acid containing waste water was generated; (3) high solids content of the pretreated materials were obtained and the consequent saccharification and fermentation was carried out at high solids loading easily. This method was applied to various lignocellulose feedstocks successfully and provided a practical means to produce ethanol economically feasible.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Vapor
/
Biotecnología
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Agua
/
Etanol
/
Biocombustibles
/
Lignina
Idioma:
En
Revista:
Bioresour Technol
Asunto de la revista:
ENGENHARIA BIOMEDICA
Año:
2011
Tipo del documento:
Article
País de afiliación:
China