Page 84 - 201812

第 35 卷第 12 期 精 细 化 工 Vol.35, No.12
2018 年 12 月 FINE CHEMICALS Dec. 2018

催化与分离提纯技术
脂肪酸甲酯加氢脱氧和加氢脱氮制备生物烷烃

1
1
2
1
1*
孙培永 ，李梦晨 ，周玉鹏 ，张胜红 ，姚志龙
（1. 北京石油化工学院 恩泽生物质精细化工北京市重点实验室，北京 102617；2. 中国石油天然气集团
公司石油化工研究院，北京 102206）
摘要：以源于废弃油脂的脂肪酸甲酯（FAMEs）为原料，以 NiMo/Al 2 O 3 为催化剂，采用加氢脱氧和加氢脱氮两
步法制备生物烷烃并对反应工艺进行了优化。结果表明，加氢脱氧的最佳反应条件为：反应温度 380 ℃、氢气
–1
压力 2 MPa、氢气和 FAMEs 体积比为 1000，空速 1 h ；加氢脱氮的最佳反应条件为：反应温度 310 ℃、氢气
–1
压力 2 MPa、氢气和烷烃体积比为 2000，空速 0.25 h 。在该优化反应条件下，硫化后的 NiMo/Al 2 O 3 催化 FAMEs
加氢脱氧能够获得正构烷烃质量分数高于 97% 的生物烷烃，所得产品采用 NiMo/Al 2 O 3 催化剂进行二次加氢脱
氮能够进一步移除超过 90% 的含氮化合物。硫化后的 NiMo/Al 2 O 3 催化剂在 FAMEs 加氢脱氧反应中具有良好的
结构稳定性和抗积碳性能，使用 1000 h 后其晶相结构无明显改变且表面积碳量仅为 3.18%。
关键词：脂肪酸甲酯；生物烷烃；NiMo/Al 2 O 3 ；加氢脱氧；加氢脱氮；催化技术
中图分类号：TQ 644.5 文献标识码：A 文章编号：1003-5214 (2018) 12-2052-06

Preparation of Bio-paraffins via Catalytic Hydrodeoxygenation of Fatty
Acid Methyl Esters and Subsequent Hydrodenitrogenation

2
1
1*
1
1
SUN Pei-yong , LI Meng-chen , ZHOU Yu-peng , ZHANG Sheng-hong , YAO Zhi-long
（1. Beijing Key Laboratory of Enze Biomass Fine Chemicals, Beijing Institute of Petrochemical Technology, Beijing
102617, China; 2. Petrochemical Research Institute of CNPC, Beijing 102206, China）
Abstract: Bio-paraffins were prepared by an integrated process combining hydrodeoxygenation (HDO) of
fatty acid methyl esters (FAMEs) and subsequent hydrodenitrogenation (HDN) over NiMo/Al 2O 3 catalyst,
in which, the FAMEs were derived from waste cooking oils. The reaction conditions were optimized.
Optimum reaction conditions of HDO were as follows: temperature 380 ℃, hydrogen pressure 2 MPa,
–1
hydrogen/FAMEs volume ratio 1000, space velocity 1 h . Under these optimum conditions, presulfided
NiMo/Al 2O 3 catalyst could convert FAMEs to bio-paraffins with an overall selectivity of normal alkanes
above 97%. The subsequent HDN reaction over NiMo/Al 2O 3 catalyst could remove more than 90%
nitrogen-containing impurities in these bio-paraffins under the optimum conditions of temperature 310 ℃,
–1
hydrogen pressure 2 MPa, hydrogen/paraffin volume ratio 2000, space velocity 0.25 h . In addition, the
presulfided catalyst showed enough structural stability and high resistance to coke formation in the HDO.
After this catalyst was used for 1000 h, its crystal structure did not change significantly and the deposited
carbon amount was only 3.18%.
Key words: fatty acid methyl ester; bio-paraffin; NiMo/Al 2O 3; hydrodeoxygenation; hydrodenitrogenation;
catalysis technology
Foundation items: National Natural Science Foundation of China (21703012); Scientific Research Project
of Beijing Municipal Commission of Education (KZ 201010017001 and KM 201610017003)

收稿日期：2018-04-06; 定用日期：2018-06-12; DOI: 10.13550/j.jxhg.20180243
基金项目：国家自然科学基金项目 (21703012); 北京市教育委员会科技计划项目 (KZ 201010017001, KM 201610017003)
作者简介：孙培永（1979—），男，博士，讲师。联系人：张胜红（1982—），男，博士，副教授，电话：010-81292304，E-mail：
zshong@bipt.edu.cn。