水稻秸秆在亚/超临界乙醇中的液化实验研究

李润东; 李秉硕; 杨天华; 谢迎辉

水稻秸秆在亚/超临界乙醇中的液化实验研究

沈阳航空航天大学能源与环境学院辽宁省清洁能源重点实验室, 辽宁沈阳 110136

基金项目: 国家重点基础研究发展规划（973计划，2011CB201500）；国家自然科学基金（51176130）；辽宁省自然科学基金联合基金（2013024019）。

详细信息

通讯作者:
李润东，男，教授，主要从事固体废物污染控制与资源化利用、清洁能源理论研究与技术开发，Tel：024-89728889，E-mail：leerd@sau.edu.cn。

中图分类号: TK6
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出版历程
- 收稿日期: 2013-07-23
- 修回日期: 2013-10-15
- 刊出日期: 2013-12-30

Liquefaction of rice stalk in sub-and supercritical ethanol

College of Energy and Environment, Key Laboratory of Clean Energy of Liaoning Province, Shenyang Aerospace University, Shenyang 110136, China

摘要

摘要: 在间歇式高压反应釜中采用乙醇为溶剂在亚/超临界状态下对水稻秸秆进行液化实验研究，考察了反应温度、稻秆/乙醇比及停留时间对稻秆液化的影响，确定了反应温度325 ℃、稻秆与乙醇比为1.0/10.0（g/mL）、反应时间60 min为最佳液化条件。在此条件下，稻秆转化率为78.32%，液化油收率达55.03%；通过GC-MS对液化油进行分析，结果表明，生物油的主要成分是酚类和酯类，占总体的50%左右。液化油的热值为28.95 MJ/kg，运动黏度为5.63 mm²/s，水分含量为2.2%。
- 水稻秸秆 /
- 乙醇 /
- 液化 /
- 生物油 /
- 超临界流体 /
- GC-MS
Abstract: Rice stalk (RS) was liquefied in ethanol under sub-and supercritical conditions in a batch autoclave; the influences of reaction temperature, RS/ethanol ratio and residence time on the liquefaction behavior were investigated. Under the optimized conditions, i.e. 325 ℃, a RS/ethanol ratio of 1/10 (g/mL), and a residence time of 60 min, the RS conversion and oil yield reach 78.32% and 55.03%, respectively. The GC/MS analysis results illustrate that the dominant components of the bio-oil are phenols and esters, which account for about 50% of the bio-oil product. The bio-oil product obtained exhibits a high heat value (HHV) of 28.95 MJ/kg, a kinematic viscosity of 5.63 mm²/s, and a water content of 2.2%.
- rice stalk /
- ethanol /
- liquefaction /
- bio-oil /
- supercritical fluid /
- GC-MS

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参考文献(14)

赵炜. 农作物秸秆在亚/超临界醇中的液化[D]. 徐州: 中国矿业大学, 2009. (ZHAO Wei. Liquefaction of crop stalks in sub and supercritical alcohols[D]. Xuzhou: China University of Mining and Technology, 2009.)

YANG Y F, FENG C P, INAMORIB Y, MAEKAWAC T. Analysis of energy conversion characteristics in liquefaction of algae[J]. Resour Conserv Recycl, 2004, 43(1), 21-33.

QIAN Y J, ZUO C J, TAN J, HE J H. Structural analysis of bio-oils from sub-and supercritical water liquefaction of woody biomass[J]. Energy, 2007, 32(3): 196-202.

JADE C, PATTARAPAN P. Bio-oil from hydro-liquefaction of bagasse in supercritical ethanol[J]. Energy Fuels, 2010, 24(3): 2071-2077.

JAVAID A, NOR AISHAH SAIDINA A. A review on process conditions for optimum bio-oil yield in hydrothermal liquefaction of biomass[J]. Renew Sust Energy Rev, 2011, 15(3): 1615-1624.

刘华敏, 解新安, 丁年平, 刘焕彬, 黄璐怡. 亚/超临界乙醇液化玉米秸秆反应路径与机理[J]. 农业工程学报, 2010, 26(6): 277-282. (LIU Hua-min, XIE Xin-an, DING Nian-ping, LIU Huan-bin, HUANG Lu-yi. Liquefaction reaction pathway and mechanism of cornstalk in sub-and super-critical ethanol[J]. Transactions of the CSAE, 2010, 26(6): 277-282.)

郑朝阳, 解新安, 陶红秀, 郑璐丝, 李雁. 亚/超临界乙醇液化秸秆纤维素解聚反应研究与机理初探[J]. 燃料化学学报, 2012, 40(5): 526-532. (ZHENG Chao-yang, XIE Xin-an, TAO Hong-xiu, ZHENG Lu-si, LI Yan. Depolymerization of stalk cellulose during its liquefaction in sub-and supercritical ethanol[J]. Journal of Fuel Chemistry and Technology, 2012, 40(5): 526-532.)

ZHOU D, ZHANG S C, FU H B, CHEN J M. Liquefaction of macroalgae enteromorpha prolifera in sub-/supercritical alcohols: Direct production of ester compounds[J]. Energy Fuels, 2012, 26(4): 2342-2351.

颜涌捷, 任铮伟. 纤维素连续催化水解研究[J]. 太阳能学报, 1999, 20(1): 55-58. (YAN Yong-jie, REN Zheng-wei. Continuous catalytic hydrolysis of cellulose[J]. Acta Energiae Solaris Sinica, 1999, 20(1): 55-58.)

ZHONG C L, WEI X M. A comparative experimental study on the liquefaction of wood[J]. Energy, 2004, 29(11): 1731-1741.

TAO H X, XIE X A, TANG C Z, TIAN W G. Mechanism of ketones formation from cellulose liquefaction in sub-and supercritical ethanol[J]. Journal of Fuel Chemistry and Technology, 2013, 41(1): 60-66.

LI H, YUAN X Z, ZENG G M, TONG J Y, XIE W. Effect of mixed solvent on the sub-and supercritical liquefaction of agricultural waste[J]. Transactions of the CSAE, 2008, 24(5): 200-203.

秦岭, 吴玉龙, 邹树平, 陈镇, 杨明德, 陈恒志. 杜氏盐藻在亚/超临界水中液化制生物油[J]. 太阳能学报, 2010, 31(9): 1079-1084. (QIN Ling, WU Yu-long, ZOU Shu-ping, CHEN Zhen, YANG Ming-de, CHEN Heng-zhi. Experimental research on direct liquefaction of microalgae in subcritical/supercritical water[J]. Acta Energiae Solaris Sinica, 2010, 31(9): 1079-1084.)

ANASTASAKIS K, ROSS A B. Hydrothermal liquefaction of the brown macro-alga laminaria saccharina: Effect of reaction conditions on product distribution and composition[J]. Bioresour Technol, 2011, 102(7): 4876-4883.

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