棕榈油加氢脱氧反应的规律.pdf

石油学报(石油加工)
2014年8月
ACTA PETROLEI SINICA (PETROLEUM PROCESSING SECTION)
第30卷第4期
文章编号:1001-8719(2014)04-0587-0
棕榈油加氢脱氧反应的规律
张超,聂
高晓冬,渠红亮,褚阳
(中国石化石油化工科学研究院,北京100083)
摘要:模拟计算了棕榈油加氢脱氧反应中直接脱氧、加氢脱羧基和加氢脱羰棊3种脱氧路径的反应热,并在中型
加氢装置上,采用浸溃法制备的NiMo/Al2O)催化剂,考察了不同工艺条件下棕榈油加氢脱氧反应规律。结果表
明,棕棡油的加氢饱和反应和3种脱氧反应均为放热反应,加氢饱和反应和直接脱氧反应放热量较大,加氢脱羧基
反应次之,加氢脱羰基反应最低。提高反应温度,对脱羧基反应有利,不利于加氢直接脱氧和脱羰基反应的发生;
提高反应压力,对加氢直接脱氧和脱羧基反应的促进作用大于加氢脱羰基反应;提高反应空速,加氢脱羰基反应
所占比例增加,加氢直接脱氧和脱羧基反应所占比例降低。棕榈油加氢脱氧产物主要是Cs~Cs的正构烷烃
关键词:棕榈油;加氢脱氧;加氢脱羧基;加氢脱羰基
中图分类号:TE665.6文献标识码:Adoi:10.3969/.issn.1001-8719.2014.04.003
Hydrodeoxygenation Rules of Palm Oil
ZHANG Chao, NIE Hong, GAO Xiaodong, QU Hongliang, CHU Yang
(Research Institute of Petroleum Processing, SINOPEC, Beijing 100083, China)
Abstract: The catalytic hydrodeoxygenation reaction (HDO) of palm oil was studied with sulphided
NI-MO/Al2 O, as catalyst in a fixed bed reactor. Besides, the reaction heats of the three HDO paths
of direct hydrodeoxygenation, hydrodecarboxylation and hydrodecarbonylation were calculated. The
influences of reaction conditions on the conversion of palm oil, deoxidation and three HDOS were
investigated. The results demonstrated that hydrogenation and three HDOS of palm oil were all the
exothermic reactions. Among the three HDOS, the direct hydrodeoxygenation released maximum
heat and the hydrodecarbonylation released the least heat. Increase of reaction temperature was in
favor of hydrodecarboxylation, but not favor of the other two HDO paths. The direct
hydrodeoxygenation and hydrodecarboxylation were enhanced more than hydrodecarbonylation as
the reaction pressure increased. When LHSV was increased, the fraction of hydrodecarbonylation
was increased, while the fractions of direct hydrodeoxygenation and hydrodecarboxylation were
decreased. The Cis -Cs paraffins were the main products from HDO of palm oil
Key words: palm oil; hydrodeoxygenation reaction; hydrodecarboxylation hydrodecarbonylation
随着化石燃料的短侠及人们环保意识日益增强,生物燃料。其中发展生物航空燃料是缓解能源危
发展可再生绿色生物能源已成为全球共识2。目机,解决环境问题的有效措施之一。美国的
前,在全球节能减排、降低CO2排放量的大趋勢UOP公司、芬兰 Neste Oil及中国石化等公司都相
下,越来越多的人把目光和减排的希望寄托在使用继推出了自己的生物燃料生产工艺。
收稿日期:2013-10-28
甚金项目:国家科技部科硏院所技术开发研究专项资金(2012EG118270)资助
第一作者:张超,男,士研究生,从事催化加氢方面的研究
通讯联系人:聂红,女,教授,博士,从事催化加氢催化剂和工艺的研究与开发;Tel:010-82368928;E~mail:niehong.ripp@sinopec.com