摘要
本研究以煤炭科学技术研究院有限公司提供的轻质煤焦油为原料,开展了提质改性制备航空航天燃料的工艺研究。针对煤焦油原料的特点,设计了一次脱硫-馏分切割-二次脱硫-加氢饱和的工艺路线。使用实验室自制的NiMoW/Al_(2)O_(3)加氢脱硫催化剂和Pd/Al_(2)O_(3)加氢饱和催化剂,通过系统实验获得了最佳工艺操作条件,其中,加氢脱硫的最佳工艺条件为300℃、5 MPa;加氢饱和的最佳工艺条件为240℃、5 MPa。经处理,油品的硫含量由323 mg/kg下降至8.5 mg/kg。原料中的苯、萘等芳烃化合物经处理转化为环烷烃。最终产物油中主要组成为环烷烃与链烷烃,含量分别为58.38%与29.65%。所制备的产品油具有高热值、低硫含量和低不饱和烃的特点,具有作为航空航天燃料应用的潜力。
In this paper,light coal tar derived from China Coal Research Institute was used as raw material to conduct a research on developing a chemical process to produce aerospace fuel.In view of the characteristics of the coal tar,a route comprising of primary desulfurization-fraction cutting-secondary desulfurization-hydrogenation saturation was designed.The optimal pressure and temperature were determined to be 5 MPa and 300℃for hydrodesulfurization on NiMoW/Al_(2)O_(3),and 5 MPa and 240℃for hydrogenation saturation on Pd/Al_(2)O_(3).After treatment,the sulfur content decreased from 323 to 8.5 mg/kg.The benzenes,naphthalenes and other aromatic compounds in the raw oil were converted into cycloalkanes.The main components of the final product were cycloalkanes and chain alkanes,and the contents were 58.38%and 29.65%respectively.The final product exhibited high heating value,low sulfur content and low unsaturated aromatic hydrocarbons,which possessed great potential to be used in aerospace fuels.
作者
白哲
黄澎
王路瑶
曹宏伟
张香文
李国柱
BAI Zhe;HUANG Peng;WANG Lu-yao;CAO Hong-wei;ZHANG Xiang-wen;LI Guo-zhu(Key Laboratory for Green Chemical Technology of Ministry of Education,School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China;Collaborative Innovation Center of Chemical Science and Engineering(Tianjin),Tianjin 300072,China;Beijing Coal Chemistry Research Institute,China Coal Research Institute,Beijing 100013,China)
出处
《燃料化学学报》
EI
CAS
CSCD
北大核心
2021年第5期694-702,共9页
Journal of Fuel Chemistry and Technology
基金
国家重点研发计划(2016YFB0600305)项目资助。
关键词
煤焦油
加氢脱硫
加氢饱和
航空航天燃料
coal tar
hydrodesulfurization
hydrogenation saturation
aerospace fuel
