Energy-efficient recovery of butanol from model solutions and fermentation broth by adsorption

被引：294

作者：

Qureshi, N

Hughes, S

Maddox, IS

Cotta, MA

机构：

[1] USDA, Natl Ctr Agr Utilizat Res, Peoria, IL 61604 USA

[2] Massey Univ, Inst Engn & Technol, Palmerston North, New Zealand

来源：

BIOPROCESS AND BIOSYSTEMS ENGINEERING | 2005年 / 27卷 / 04期

关键词：

butanol; adsorption; silicalite; ABE; recovery; polyvinylpyridine;

D O I：

10.1007/s00449-005-0402-8

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

This article discusses the separation of butanol from aqueous solutions and/or fermentation broth by adsorption. Butanol fermentation is also known as acetone butanol ethanol (ABE) or solvent fermentation. Adsorbents such as silicalite, resins (XAD-2, XAD-4, XAD-7, XAD-8, XAD-16), bone charcoal, activated charcoal, bonopore, and polyvinylpyridine have been studied. Use of silicalite appears to be the more attractive as it can be used to concentrate butanol from dilute solutions (5 to 790 - 810 g L-1) and results in complete desorption of butanol ( or ABE). In addition, silicalite can be regenerated by heat treatment. The energy requirement for butanol recovery by adsorption desorption processes has been calculated to be 1,948 kcal kg(-1) butanol as compared to 5,789 kcal kg(-1) butanol by steam stripping distillation. Other techniques such as gas stripping and pervaporation require 5,220 and 3,295 kcal kg(-1) butanol, respectively.

引用

页码：215 / 222

页数：8

共 21 条

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