Sodium hydroxide regeneration of trialkylamine extractant containing inhibitors from corn stover prehydrolyzate by liquid-liquid extraction

被引：7

作者：

Zhu, Junjun ^{[1
,2
]}

Zhu, Yuanyuan ^{[1
]}

Zhang, Lingling ^{[1
]}

Yong, Qiang ^{[1
]}

Xu, Yong ^{[1
,2
]}

Li, Xin ^{[1
]}

Lian, Zhina ^{[1
]}

Yu, Shiyuan ^{[1
]}

机构：

[1] Nanjing Forestry Univ, Coll Chem Engn, Nanjing 210037, Jiangsu, Peoples R China

[2] Jiangsu Key Lab Biomass Based Green Fuel & Chem, Nanjing 210037, Jiangsu, Peoples R China

来源：

SEPARATION AND PURIFICATION TECHNOLOGY | 2014年 / 126卷

基金：

中国国家自然科学基金;

关键词：

Inhibitor; Trialkylamine extractant; Sodium hydroxide; Corn stover; Extraction; ETHANOL-PRODUCTION; ENZYMATIC SACCHARIFICATION; LIGNOCELLULOSIC BIOMASS; PICHIA-STIPITIS; ACETIC-ACID; DETOXIFICATION; HYDROLYSATE; REMOVAL; FERMENTATION; PRETREATMENT;

D O I：

10.1016/j.seppur.2014.02.014

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Trialkylamine was an effective extractant for the removal of inhibitors from corn stover prehydrolyzate. Ethanol fermentability of the extracted prehydrolyzate was improved significantly. An approach for regeneration and valuable solutes (mainly acetic acid) recovery from such extractant was to back-extract the extractant containing inhibitors with sodium hydroxide. The influences of NaOH concentration, aqueous-organic phase ratio (A/O) on the extractant regeneration were investigated. The results indicated that 17.5 g/l NaOH could remove 100% acetic acid at A/O of 1:1. 175 g/l NaOH at A/O of 1:10 could also reach the same effect. Likewise, the results of 175 g/l NaOH at A/O of 1:1 repeatedly back-extracted the extractant for ten cycles were the same as before. The performance of regenerated extractant on extraction the corn stover prehydrolyzate showed almost no change after reused ten cycles. So NaOH was very suitable to regenerate the extractant containing inhibitors in bioethanol industry. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：39 / 43

页数：5

共 34 条

[1] Optimal conditions for alkaline detoxification of dilute-acid lignocellulose hydrolysates
Alriksson, Bjorn
Sjode, Anders
Nilvebrant, Nils-Olof
Jonsson, Leif J.
[J]. APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY, 2006, 130 (1-3) : 599 - 611
[2] Improving the fermentability of enzymatic hydrolysates of lignocellulose through chemical in-situ detoxification with reducing agents
Alriksson, Bjorn
Cavka, Adnan
Jonsson, Leif J.
[J]. BIORESOURCE TECHNOLOGY, 2011, 102 (02) : 1254 - 1263
[3] Bras T., 2013, PROCESS BIOCH
[4] Detoxification of sugarcane bagasse hydrolysate improves ethanol production by Candida shehatae NCIM 3501
Chandel, Anuj Kumar
Kapoor, Rajeev Kumar
Singh, Ajay
Kuhad, Ramesh Chander
[J]. BIORESOURCE TECHNOLOGY, 2007, 98 (10) : 1947 - 1950
[5] Removal of inhibitors from lignocellulosic hydrolyzates by vacuum membrane distillation
Chen, Jingwen
Zhang, Yaqin
Wang, Yafei
Ji, Xiaosheng
Zhang, Lin
Mi, Xigeng
Huang, He
[J]. BIORESOURCE TECHNOLOGY, 2013, 144 : 680 - 683
[6] [陈魁 Chen Kuai], 2005, [南京工业大学学报. 自然科学版, Journal of Nanjing University of Technology], V27, P41
[7] Dai Y., 2007, COMPLEXATION EXTRACT
[8] Dil B., 1993, J CHEM ENG CHIN U, V7, P174
[9] Optimization of enzymatic hydrolysis of steam-exploded corn stover by two approaches: Response surface methodology or using cellulase from mixed cultures of Trichoderma reesei RUT-C30 and Aspergillus niger NL02
Fang, Hao
Zhao, Chen
Song, Xiang-Yang
[J]. BIORESOURCE TECHNOLOGY, 2010, 101 (11) : 4111 - 4119
[10] Detoxification of biomass hydrolysates by reactive membrane extraction
Grzenia, David L.
Schell, Daniel J.
Wickramsinghe, S. Ranil
[J]. JOURNAL OF MEMBRANE SCIENCE, 2010, 348 (1-2) : 6 - 12

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