Effect of Torrefaction on Water Vapor Adsorption Properties and Resistance to Microbial Degradation of Corn Stover
Effect of Torrefaction on Water Vapor Adsorption Properties and Resistance to Microbial Degradation of Corn Stover
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DOI：
10.1021/ef3000449
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发表时间：
2012-03
期刊：
影响因子：
5.3
通讯作者：
D. Medic;M. Darr;Ajay V. Shah;S. J. Rahn
中科院分区：
文献类型：
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作者：
D. Medic;M. Darr;Ajay V. Shah;S. J. Rahn
生物质的平衡含水率影响着运输、储存、下游原料加工以及生物可再生能源生产的整体经济性。裂解是在200至300摄氏度的温度范围内，在惰性大气中进行的一种热化学过程，其目的之一是降低生物质的天然亲水性和对微生物降解的敏感性。本研究的目的是考察玉米秸秆的吸水性能。在平衡相对湿度(ERH)和温度分别为10~98%和10~40℃的条件下，用静态重量法测定了玉米秸秆原料和3种温度下热处理玉米秸秆的电磁兼容性。对实验数据进行了5条等温线的拟合，得到了最能描述木质纤维生物质ERH与EMC之间关系的预测方程。在97%的ERH和30°...
The equilibrium moisture content (EMC) of biomass affects transportation, storage, downstream feedstock processing, and the overall economy of biorenewables production. Torrefaction is a thermochemical process conducted in the temperature regime between 200 and 300 °C under an inert atmosphere that, among other benefits, aims to reduce the innate hydrophilicity and susceptibility to microbial degradation of biomass. The objective of this study was to examine water sorption properties of torrefied corn stover. The EMC of raw corn stover, along with corn stover thermally pretreated at three temperatures, was measured using the static gravimetric method at equilibrium relative humidity (ERH) and temperatures ranging from 10 to 98% and from 10 to 40 °C, respectively. Five isotherms were fitted to the experimental data to obtain the prediction equation that best describes the relationship between the ERH and the EMC of lignocellulosic biomass. Microbial degradation of the samples was tested at 97% ERH and 30 °...