Abstract
The mechanism of rod-milling combined with torrefaction as well as its effects on physicochemical and fuel properties of wheat straw were investigated. Rod-milling and hammer-milling samples were torrefied under three temperatures (250, 275, and 300 °C) with a duration time of 30 min. The results indicated that combined rod-milling and torrefaction pretreatment (CRT) significantly elevated carbon content, higher heating value, fuel ratio, and reduced oxygen content and atomic H/C and O/C ratios in wheat straw. Moreover, CRT significantly reduced cellulose crystallinity, and increased the specific surface area and pore volume of wheat straw, which lowered the wheat straw's degrading pyrolysis temperature. These peak values appeared under 300 °C. Devolatilization index (Di) was improved by rod-milling pretreatment under identical torrefaction conditions except 275 °C. Therefore, the combination of rod-milling with torrefaction under 300 °C has the advantage of enhancing fuel properties of lignocellulosic biomass materials.
References
Mar 6, 2012·Bioresource Technology·Wei-Hsin ChenZhen-Yu Wang
Apr 15, 2014·Bioresource Technology·Shan-Wen DuJohn A Lucas
Jul 25, 2014·Bioresource Technology·Zhiqiang WuHaiyu Meng
Dec 3, 2014·Bioresource Technology·Anqing ZhengHaibin Li
Dec 6, 2014·Bioresource Technology·Bor-Sen ChiouWilliam J Orts
Sep 8, 2015·Bioresource Technology·Shuping ZhangYuanquan Xiong
Feb 2, 2016·Bioresource Technology·Guanya JiLujia Han
May 3, 2016·Bioresource Technology·Chunxiao GongDecheng Wang
Jan 10, 2017·Bioresource Technology·Handing ChenHaifeng Liu
Mar 4, 2017·Bioresource Technology·Yang YueSudhagar Mani
Mar 11, 2017·Bioresource Technology·Dengyu ChenZhongqing Ma
Mar 13, 2017·Bioresource Technology·Xiaopeng BaiDecheng Wang
Jun 2, 2017·Bioresource Technology·Chongfeng GaoLujia Han
Dec 13, 2017·Bioresource Technology·Xiaopeng BaiZhiqin Wang
May 20, 2018·Bioresource Technology·Yan YuZhiqin Wang