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Analysis of conversion and operation strategies for enzymatic hydrolysis of lignocellulosic biomass in a series of CSTRs with distributed feeding

机译:分布式进料的一系列CSTR中木质纤维素生物质酶解的转化和操作策略分析

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摘要

Design considerations for enzymatic hydrolysis of lignocellulosic biomass in two and three continuous stirred tank reactors (CSTRs) in series with distributed feeding of substrate and enzyme, followed by a series of CSTRs, are discussed. A previously developed, fitted, and validated kinetic model is extended to accommodate distributed feeding and used along with the micromixing limiting situations of macrofluid and microfluid to describe the reaction system. The capabilities of the reaction system proposed are explored for a range of cumulative substrate concentration from 5 to 20% w/w (dry basis). Continuous distributed feeding does not show advantages in terms of cellulose conversion when compared with the operation where an equivalent mass of substrate is added at the first reactor of the series, but the potential to increase substrate concentration beyond the concentrations that can be handled in conventional CSTRs, and therefore, the volumetric productivity of reactors, is evident.
机译:讨论了在两个和三个连续搅拌釜式反应器(CSTR)中酶解水解木质纤维素生物质的设计注意事项,依次分配底物和酶,随后是一系列CSTR。扩展了先前开发,拟合和验证的动力学模型,以适应分布式进料,并与大流体和微流体的微混合限制情况一起用于描述反应系统。在5至20%w / w(干基)的累积底物浓度范围内,探索了提出的反应系统的功能。与在系列的第一个反应器中添加等量底物的操作相比,连续分布进料在纤维素转化率方面没有优势,但是有可能使底物浓度增加到超过常规CSTR所能处理的浓度因此,反应器的容积生产率是显而易见的。

著录项

  • 来源
    《Bioprocess and Biosystems Engineering》 |2010年第8期|P.901-910|共10页
  • 作者单位

    Laboratory of Optimization, Design, and Advanced Control,School of Chemical Engineering, State University of Campinas,P.O. Box 6066, 13083-970 Campinas, SP, Brazil;

    rnLaboratory of Fermentative and Enzymatic Process Engineering,School of Chemical Engineering, State University of Campinas,P.O. Box 6066, 13083-970 Campinas, SP, Brazil;

    rnLaboratory of Optimization, Design, and Advanced Control,School of Chemical Engineering, State University of Campinas,P.O. Box 6066, 13083-970 Campinas, SP, Brazil;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    continuous reactors; enzymatic hydrolysis; micromixing models; distributed feeding;

    机译:连续反应器酶促水解;微混合模型;分布式喂养;
  • 入库时间 2022-08-18 03:43:18

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