杨木预水解液中化学组分质量浓度的P因子调控

doi:10.3969/j.issn.1673-5854.2020.01.008

生物质化学工程 ›› 2020, Vol. 54 ›› Issue (1): 49-54.doi: 10.3969/j.issn.1673-5854.2020.01.008

杨木预水解液中化学组分质量浓度的P因子调控

刘海梅,赵思,冯年捷*()

湖北工业大学材料与化学工程学院, 湖北武汉 430068

收稿日期:2018-12-14 出版日期:2020-01-30 发布日期:2020-02-11
通讯作者: 冯年捷 E-mail:njfeng@hbut.edu.cn
作者简介:刘海梅(1999-),女,湖北黄冈人,本科生,从事木质纤维预水解研究
基金资助:
湖北工业大学大学生创新创业训练计划(201810500040);湖北工业大学博士生启动基金(BSQD2017016)

Regulation Effect of P Factor on Mass Concentration of Chemical Composition in Prehydrolysis Liquor of Poplar

Haimei LIU,Si ZHAO,Nianjie FENG*()

School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan 430068, China

Received:2018-12-14 Online:2020-01-30 Published:2020-02-11
Contact: Nianjie FENG E-mail:njfeng@hbut.edu.cn
Supported by:
湖北工业大学大学生创新创业训练计划(201810500040);湖北工业大学博士生启动基金(BSQD2017016)

摘要/Abstract

摘要：

为研究P因子对木质纤维原料预水解液中化学组分质量浓度的调控机制，分析了不同预水解温度（170~210℃）和预水解时间（30~120 min）条件下，杨木预水解液中固形物、木质素、木糖和葡萄糖质量浓度的变化规律。结果表明：升高预水解温度和延长预水解时间，固形物、木质素和葡萄糖质量浓度均逐渐增大。而木糖质量浓度随温度的升高而降低；190℃时，木糖质量浓度随预水解时间延长迅速减小。P因子对杨木预水解液中化学组分的质量浓度具有调控作用。固形物、木质素和葡萄糖质量浓度随P因子增加呈指数增大。而木糖质量浓度随P因子增加呈指数减小，P因子小于3 300时，木糖质量浓度随P因子增加迅速减小。

关键词: 预水解液, P因子, 化学组分, 质量浓度

Abstract:

In order to reveal the regulation mechanism of P factor on the mass concentration of chemical composition in prehydrolysis liquor of lignocellulose, the mass concentration changes of solid content, lignin, xylose and glucose were studied at different prehydrolysis temperature(170-210℃) and time(30-120 min). The results showed that the mass concentration of solid content, lignin and glucose gradually increased with the increase of prehydrolysis temperature and time. While the mass concentration of xylose rapidly decreased with the increase of temperature and prehydrolysis time at 190℃. There was a regulation effect of P factor on mass concentration of chemical composition in prehydrolysis liquor of poplar. The mass concentration of solid content, lignin and glucose presented an exponential increase with the increase of P factor. However, a conspicuous decrease of mass concentration of xylose was found with the increase of P factor when P factor < 3 300.

Key words: prehydrolysis liquor, P factor, chemical composition, mass concentration

中图分类号:

TQ35

刘海梅,赵思,冯年捷. 杨木预水解液中化学组分质量浓度的P因子调控[J]. 生物质化学工程, 2020, 54(1): 49-54.

Haimei LIU,Si ZHAO,Nianjie FENG. Regulation Effect of P Factor on Mass Concentration of Chemical Composition in Prehydrolysis Liquor of Poplar[J]. Biomass Chemical Engineering, 2020, 54(1): 49-54.

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预水解温度/℃ temperature	升温时间/min heating up time	预水解时间/min prehydrolysis time	P因子 P factor
170	77.8	30	424
170	77.8	60	719
170	77.8	90	1014
170	77.8	120	1309
190	88.9	30	1926
190	88.9	60	3214
190	88.9	90	4501
190	88.9	120	5789
210	100	30	7742
210	100	60	12714
210	100	90	17685
210	100	120	22657

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杨木预水解液中化学组分质量浓度的P因子调控

Regulation Effect of P Factor on Mass Concentration of Chemical Composition in Prehydrolysis Liquor of Poplar

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