预处理对松木屑液化效率及产物化学组分的影响研究

doi:10.3969/j.issn.0253-2417.2014.01.012

Abstract

Abstract: Pine sawdust was liquefied using methanol-water mixed solvent as liquid agent. The effects of the pretreatment conditions on structural changes of the surface and the liquefaction conversion rate were investigated. The effects of reaction temperature and residence time on sawdust liquefaction were studied, too. The results indicated that different pretreatment can change the sawdust structure. The sawdust pretreated by NaOH had the most structural change. This could broaden the chemical reactivity. The conversion of sawdust was 92.4 % after pretreatment of sodium hydroxide solution at 320 ℃ for 10 min. GC-MS analysis showed that the liquid products mainly included alcohols, aldehydes, ketones, acids, esters and phenols. It was also found that pretreatment had an important effect on their contents which reached 40.588 %. The major component of liquid product produced with sawdust was aldehyde compounds and urea yields acid compounds. Their contents were 30.878 % and 25.311 %,respectively. The sawdust pretreated by NaOH trends to formate of ketone compounds,while sawdust pretreated by mixed NaOH and urea yields about 38.478 % phenolic compounds.

Key words: pine sawdust, pretreatment, liquefaction

CLC Number:

TQ35
TK6

HE Xiao-liang, JIANG Jian-chun, JIANG Xiao-xiang, YANG Zhong-zhi. Effects of Pretreatment on Liquefaction of Pine Sawdust and Chemical Components of Product[J]. Chemistry and Industry of Forest Products, 2014, 34(1): 73-78.

References

[1] 孙培勤, 臧哲学, 孙绍晖, 等.生物质高压液化生物油的研究进展[J].现代化工, 2008, 28(3):22-26.
[2] 姜洪涛, 李会泉, 张懿.生物质高压液化制生物原油研究进展[J].化工进展, 2006, 25(1):8-13.
[3] 蒋剑春.生物质热化学转化制液体燃料的研究进展[J].生物质化学工程, 2007, 41(5):45-51.
[4] ZHANG Ling-hong, XU Chun-bao, CHAMPAGNE P.Overview of recent advances in thermo-chemical conversion of biomass[J].Energy Conversion and Management, 2010, 51(5):969-982.
[5] 王刚, 梁小蕊, 薛钦昭, 等.生物质高压液化技术影响因素分析及展望[J].可再生能源, 2008, 26(4):31-34, 40.
[6] 张永发, 李香兰, 石玉良, 等.CaO催化超临界甲醇体系中玉米秸秆高压热解液化特性研究[J].太原理工大学学报, 2010, 41(5):512-517.
[7] MOHSENZADEH A, JEIHANIPOUR A, KARIMI K, et al.Alkali pretreatment of softwood spruce and hardwood birch by NaOH/thiourea, NaOH/urea, NaOH/urea/thiourea, and NaOH/PEG to improve ethanol and biogas production[J].Journal of Chemical Technology Biotechnology, 2012, 87(8):1209-1214.
[8] 陈育如, 夏黎明, 吴锦斌, 等.植物纤维素原料预处理技术的研究进展[J].化工进展, 1999, 18(4):24-26.
[9] WANG Zi-yu, LI Ru-yu, XU Jie-le, et al.Sodium hydroxide pretreatment of genetically modified switchgrass for improved enzymatic release of sugars[J].Bioresource Technology, 2012, 110:364-370.
[10] 陈秋玲, 孙可伟, 张春红.生物质聚氨酯制备中微波预处理对液化的影响研究[J].林产化学与工业, 2012, 32(2):43-46.
[11] LIU Hua-min, FENG Bing, SUN Run-cang.Acid-chlorite pretreatment and liquefaction of cornstalk in hot-compressed water for bio-oil production[J].Agricultural and Food Chemistry, 2011, 59(19):10524-10531.
[12] 薛振华, 赵广杰.碱处理对木材结晶构造的影响及其微观模型[C]//第二届全国生物质材料科学与技术学术研讨会论文集.呼和浩特, 2008:485-490.
[13] 杨中志, 蒋剑春, 徐俊明, 等.木屑复合溶剂液化及液化油的组分分离试验研究[J].可再生能源, 2012, 30(10):84-88.
[14] GUO Zhen-xing, BAI Zong-qing, BAI Jin, et al.Co-liquefaction of lignite and sawdust under syngas[J].Fuel Processing Technology, 2011, 92(1):119-125.

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Effects of Pretreatment on Liquefaction of Pine Sawdust and Chemical Components of Product

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