Research progress on pretreatment techniques of straw at atmospherics pressure

doi:10.16085/j.issn.1000-6613.2017.03.014

Abstract

Abstract:

The high added-value of straws renewable resources' utilization was a hot research topic in the world. Choosing and developing an economic,effective,safe and environmentally friendly straw pretreatment technique under atmospheric pressure was the key problem that needs to be addressed. Based on the straw's structure features and pretreatment mechanism,researches on pretreatment techniques of straw were reviewed in this paper. The physical,chemical and biological pretreatment methods were introduced in this paper concerning the electron beam irradiation,microwave, plasma,oxidation,acid catalytic organic solvents,acid/alkali,SO₃ micro-thermal explosion, microbial and its enzymatic pretreatment technology. Considering the problems of economy, environmental protection as well as scale development and application,an atmospheric pressure and none high temperature process,SO₃ micro-thermal explosion was proposed. This process presents great potential values in the utilization of straw resource.

Key words: atmospheric pressure, pretreatment, mechanism, straw

摘要：

秸秆类可再生资源的高值化利用是当今世界的研究热点，选择和开发经济有效、安全环保的常压法秸秆预处理技术是迫切需要解决的关键问题。本文从秸秆类物质的组成结构特性和预处理机制出发，对秸秆类生物质资源的常压法预处理技术的研究进行了综述。介绍了物理法、化学法和生物法三大常压预处理技术，包括电子束辐照、微波处理、等离子体处理、氧化处理、酸催化有机溶剂、酸/碱处理、SO₃微热爆、微生物以及生物酶法预处理技术。考虑到经济、环保和规模化的开发利用等问题，提出了常压/非高温的SO₃微热爆技术在秸秆类资源的高值化利用中的重要潜在价值，并指出当下预处理技术的不足及未来的发展趋势。

关键词: 常压法, 预处理, 机制, 秸秆

CLC Number:

TQ033

YANG Weihua, LI Fenghe. Research progress on pretreatment techniques of straw at atmospherics pressure[J]. Chemical Industry and Engineering Progress, 2017, 36(03): 873-880.

杨为华, 李凤和. 常压法秸秆预处理技术研究进展[J]. 化工进展, 2017, 36(03): 873-880.

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