自还原双功能催化剂催化木质纤维素生物质氢解制低碳多元醇的研究

肖竹钱; 葛秋伟; 邢闯; 方晟; 计建炳; 毛建卫

自还原双功能催化剂催化木质纤维素生物质氢解制低碳多元醇的研究

肖竹钱^1,2,3,4,
葛秋伟^1,2,3,4,
邢闯^1,2,3,
方晟⁵,
计建炳⁴,
毛建卫^1,2,3,

1.
浙江科技学院生物与化学工程学院, 浙江杭州 310023;
2.
浙江省农产品化学与生物加工技术重点实验室, 浙江杭州 310023;
3.
浙江省农业生物资源生化制造协同创新中心, 浙江杭州 310023;
4.
浙江工业大学化学工程学院, 浙江杭州 310014;
5.
绍兴文理学院元培学院, 浙江绍兴 312069

基金项目: 浙江省教育厅科研项目(Y20112088)和浙江省科技计划项目(2011R09028-10)资助

详细信息

通讯作者:
毛建卫,Tel:13705790850,E-mail:zjhzmjw@163.com

中图分类号: O643.38
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出版历程
- 收稿日期: 2015-09-14
- 修回日期: 2015-10-29
- 刊出日期: 2015-12-30

One-pot catalytic agroforestry waste cellulose to polyols over self-reducing bifunctional catalysts

XIAO Zhu-qian^1,2,3,4,
GE Qiu-wei^1,2,3,4,
XING Chuang^1,2,3,
FANG Sheng⁵,
JI Jian-bing⁴,
MAO Jian-wei^{1,2,3
,}

1.
School of Biological and Chemical Engineering, Zhejiang University of Science & Technology, Hangzhou 310023, China;;
2.
Zhejiang Provincial Key Laboratory of Chemical and Biological Processing Technology of Farm Products, Hangzhou 310023, China;;
3.
Collaborative Innovation Center of Agricultural Biological Resources Biochemical Manufacturing of Zhejiang Province, Hangzhou 310023, China;;
4.
College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China;;
5.
Shaoxing University Yuanpei College, Shaoxing 312069, China

Funds: The project was supported by Scientific Research Project of Zhejiang Provincial Education Department (Y20112088) and Science and Technology Project of Zhejiang Province (2011R09028-10).

摘要

摘要: 利用生物碳源在煅烧过程中产生的还原性气体还原金属氧化物来制备自还原型双功能催化剂Ni-W/SBA-15,将其直接应用于催化木质纤维素生物质氢解制备低碳多元醇,省去了催化剂还原步骤。TG和XRD结果表明,制备过程中引入的蔗糖含量为3.0 g时,催化剂中被还原的活性金属含量最高;随着Ni含量的增加,镍粒子逐渐增大;W物种为非晶态。SEM和TEM分析表明,SBA-15均匀地负载Ni、W粒子,且粒径小、分散性好。在自还原型催化剂10%Ni-15%W/SBA-15催化作用下,在反应温度为240℃、氢压为5.0 MPa和反应时间为6 h的条件下,微晶纤维素完全转化,低碳多元醇的收率达68.14%;当以小麦秸秆粉作为反应物时,转化率为85.32%,低碳多元醇总收率为44.71%。
- 自还原双功能催化剂 /
- 木质纤维素 /
- 氢解 /
- 低碳多元醇
Abstract: A series of self-reducing bifunctional catalysts Ni-W/SBA-15 were prepared through reduction of metal oxides by reducing gas produced in the calcination process of bio-carbon source. These catalysts were directly applied to the hydrogenolysis agroforestry waste lignocellulose to low carbon polyols. TG and XRD results showed that when added 3.0 g sucrose into catalysts precursors, reduction of active metal oxides was supreme and Ni particles increased gradually as the further increase of Ni. The tungsten species were amporphous state seen from XRD patterns. The micrographs from SEM showed that the nickel and tungsten species were loaded on SBA-15 surface with a good dispersion and the particles were tiny which was beneficial to promote the reaction. Thus, the transformation of microcellulose was complete and low carbon polyols yield was up to 68.14%. In contrast, the target product yield was 52.66% when the wheat straw as the substrate under the reaction condition of 240℃ and 6.0 MPa H₂ for 6 h.
- self-reducing bifunctional catalyst /
- agroforestry waste cellulose /
- hydrogenolysis /
- low carbon polyols

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