Material and Heat Balances of Bioethanol Production Process by Concentrated Acid Saccharification Process from Lignocellulosic Biomass

Title
Material and Heat Balances of Bioethanol Production Process by Concentrated Acid Saccharification Process from Lignocellulosic Biomass
Authors
김희영이의수김원석서동진안병성
Keywords
Bioethanol production; Lignocellulose; Pretreatment; Pervaporation; Lignocellulosic biomass; Process simulation; Concentrated acid pretreatment
Issue Date
2011-06
Publisher
Clean technology; 청정기술
Citation
VOL 17, NO 2, 156-165
Abstract
The process for bioethanol production from lignocellulosic biomass was studied through process simulation using PRO/II. Process integration was conducted with concentrated acid pretreatment, hydrolysis process, SMB (simulated moving bed chromatography) process and pervaporation process. Energy consumption could be minimized by the heat recovery process. In addition, material and energy balance were calculated based on the results from the simulation and literature data. A net production yield of 4.07 kg-biomass and energy consumption value of 3,572 kcal per 1 kg ethanol were calculated, which is indicating that 26% yield increase and 30% energy saving compared to the bioethanol production process with dilute-acid hydrolysis (SRI report). In order to make it possible, sugar conversion yield of cellulose and hemi-cellulose is to be reached up to 90% and fermentation of xylose needs to be developed. In order to reduce the energy consumption up to 30%, the concentration of acid solution after being separated by SMB should exceed 20%. If acid/sugar separation by SMB process is to be practical, the bioethanol process designed in this study can be commercially feasible.
URI
http://pubs.kist.re.kr/handle/201004/40319
ISSN
1598-9712
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE