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生物质化学工程

生物质化学工程 ›› 2018, Vol. 52 ›› Issue (2): 23-28.doi: 10.3969/j.issn.1673-5854.2018.02.005

• 研究报告 • 上一篇    下一篇

玉米秸秆在乙醇/水混合溶剂中液化制生物油的研究

李明洋1, 孙嘉君1, 李林桐1, 黄金文1, 郝超志1, 李秉硕2, 杨天华1   

  1. 1. 沈阳航空航天大学 能源与环境学院, 辽宁 沈阳 110136;
    2. 天津大学 环境科学与工程学院, 天津 300072
  • 收稿日期:2017-03-21 出版日期:2018-03-30 发布日期:2018-04-03
  • 通讯作者: 杨天华(1974-),女,吉林长春人,教授,博士,主要从事生物质能的研究;E-mail:thyang@sau.edu.cn。 E-mail:thyang@sau.edu.cn
  • 作者简介:李明洋(1993-),女,辽宁辽阳人,本科生,主要从事生物质液化技术研究
  • 基金资助:
    航空科学基金（2015ZB54006）；沈阳航空航天大学大学生创新创业计划项目（DS509202）

Liquefaction of Corn Stover in Ethanol/Water Co-solvent for Bio-oil Production

LI Mingyang1, SUN Jiajun1, LI Lintong1, HUANG Jinwen1, HAO Chaozhi1, LI Bingshuo2, YANG Tianhua1   

  1. 1. College of Energy and Environment, Shenyang Aerospace University, Shenyang 110136, China;
    2. School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China
  • Received:2017-03-21 Online:2018-03-30 Published:2018-04-03

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摘要： 在间歇式高压反应釜中，在镍基催化剂NiMoS/Al2O3催化下研究了反应温度（180~340℃）对乙醇水蒸气重整制氢的影响，并以乙醇/水为混合溶剂，玉米秸秆为原料研究了其在混合溶剂下的直接液化行为。结果表明：在添加NiMoS/Al2O3催化剂的条件下，当反应温度提高到320℃时，乙醇水蒸气重整反应发生，伴随着CO、CO2、CH4、H2和CnHm的产生，其中H2产量最高为47 mmol，进一步提高温度至340℃，H2产量增加到122 mmol。反应温度为340℃条件下，玉米秸秆液化油的收率由未添加催化剂时的21.26%增加到添加催化剂后的29.57%，热值由32.14 MJ/kg提高到33.89 MJ/kg。GC-MS分析得出生物油的主要成分为酚类、酯类和酮类，且添加催化剂后酚类的量下降了23%，有助于提高生物油稳定性。

关键词: 玉米秸秆, 混合溶剂, 液化, 生物油

Abstract: The effect of temperature(180-340℃) on the ethanol steam reforming(ESR) with NiMoS/Al2O3 as catalyst was investigated in batch-type autoclave. The behavior of corn stover liquefaction in the ethanol-water co-solvent was studied. Results showed that the ESR occurred as the temperature increased to 320℃ with NiMoS/Al2O3, accompanied with the formation of CO, CO2, CH4, H2 and CnHm, of which the H2 yield was the highest(47 mmol). When the temperature was further increased to 340℃, the H2 yield remarkably increased to 122 mmol. Compared to the non-catalytic runs, the yield and heating value(QHHV)of bio-oil obtained from corn stover liquefaction at 340℃ with NiMoS/Al2O3 as catalyst increased from 21.26% and 32.14 MJ/kg to 29.57% and 33.89 MJ/kg, respectively. GC-MS results showed that the main components of the bio-oil were phenolics, esters and ketones, and the phenolics content decreased by 23% after adding the catalyst, which was beneficial to increase the stability of bio-oil.

Key words: corn stover, co-solvent, liquefaction, bio-oil

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