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Title: Steam-explosion pretreatment for enzymatic hydrolysis. [US]

Abstract

The effects of process parameters of steam explosion have been determined. Steam consumption depends mainly on the moisture content of the treated aspenwood. Air-dry wood can be used, cutting steam consumption in half. Heat flow into thick green-wood chips is slow, giving cold under-cooked centers. Composition change (original wood: C, 49,79; H, 5.92; O, 43.68; exploded wood: C, 51.80; H, 6.00; O, 43.68), weight loss, and gas analysis showed pyrolysis to CO/sub 2/ and water. Impregnation with 0.2% sulfuric acid selectively increased hydrolysis relative to pyrolysis. ''Pseudolignin'' formed from pentosan independently of furfural production. Dry steam solubilized pentosan less well than did saturated steam.

Authors:
;
Publication Date:
Research Org.:
Forintek Canada Corp., Ottawa, Ontario
OSTI Identifier:
6483282
Report Number(s):
CONF-840509-
Journal ID: CODEN: BIBSB
Resource Type:
Conference
Journal Name:
Biotechnol. Bioeng. Symp.; (United States)
Additional Journal Information:
Journal Volume: 16:14; Conference: 6. symposium on biotechnology for fuels and chemicals, Gatlinburg, TN, USA, 15 May 1984
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; WOOD WASTES; ACID HYDROLYSIS; ENZYMATIC HYDROLYSIS; HEAT TREATMENTS; CARBON DIOXIDE; GAS ANALYSIS; MOISTURE; STEAM; WOOD; CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; CHEMICAL REACTIONS; DECOMPOSITION; HYDROLYSIS; LYSIS; OXIDES; OXYGEN COMPOUNDS; SOLID WASTES; SOLVOLYSIS; WASTES; 090222* - Alcohol Fuels- Preparation from Wastes or Biomass- (1976-1989); 140504 - Solar Energy Conversion- Biomass Production & Conversion- (-1989)

Citation Formats

Brownell, H H, and Saddler, J N. Steam-explosion pretreatment for enzymatic hydrolysis. [US]. United States: N. p., 1984. Web.
Brownell, H H, & Saddler, J N. Steam-explosion pretreatment for enzymatic hydrolysis. [US]. United States.
Brownell, H H, and Saddler, J N. Sun . "Steam-explosion pretreatment for enzymatic hydrolysis. [US]". United States.
@article{osti_6483282,
title = {Steam-explosion pretreatment for enzymatic hydrolysis. [US]},
author = {Brownell, H H and Saddler, J N},
abstractNote = {The effects of process parameters of steam explosion have been determined. Steam consumption depends mainly on the moisture content of the treated aspenwood. Air-dry wood can be used, cutting steam consumption in half. Heat flow into thick green-wood chips is slow, giving cold under-cooked centers. Composition change (original wood: C, 49,79; H, 5.92; O, 43.68; exploded wood: C, 51.80; H, 6.00; O, 43.68), weight loss, and gas analysis showed pyrolysis to CO/sub 2/ and water. Impregnation with 0.2% sulfuric acid selectively increased hydrolysis relative to pyrolysis. ''Pseudolignin'' formed from pentosan independently of furfural production. Dry steam solubilized pentosan less well than did saturated steam.},
doi = {},
url = {https://www.osti.gov/biblio/6483282}, journal = {Biotechnol. Bioeng. Symp.; (United States)},
number = ,
volume = 16:14,
place = {United States},
year = {1984},
month = {1}
}

Conference:
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