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

Abstract

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

CLC Number:

TQ35

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.

Figures/Tables 7

Table 1

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References 13

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

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