低温煤焦油加氢制备清洁燃料油品中试试验研究

doi:10.16085/j.issn.1000-6613.2017-1433

化工进展 ›› 2018, Vol. 37 ›› Issue (06): 2192-2202.DOI: 10.16085/j.issn.1000-6613.2017-1433

低温煤焦油加氢制备清洁燃料油品中试试验研究

崔文岗^1,2, 李冬^1,2, 樊安¹, 潘柳依¹, 牛梦龙¹, 李稳宏¹

1 西北大学化工学院, 陕西西安 710069;
2 陕西省资源化工应用技术工程研究中心, 陕西西安 710069

收稿日期:2017-07-11 修回日期:2017-08-21 出版日期:2018-06-05 发布日期:2018-06-05
通讯作者: 李冬,教授。
作者简介:崔文岗(1991-),男,硕士研究生,主要从事煤焦油加氢催化转化研究。E-mail:wgc@stumail.nwu.edu.cn。
基金资助:
国家自然科学基金（21646009）、高等学校博士学科点专项科研基金（20126101120013）、陕西省科技统筹创新工程计划（2014KTCL01-09）、陕西省教育厅科学研究计划（2013JK0692，2013JC21）及西北大学“优秀青年学术骨干支持计划”项目。

Pilot-scale study of upgrading a low temperature coal tar distillate for the production of clean fuels

CUI Wengang^1,2, LI Dong^1,2, FAN An¹, PAN Liuyi¹, NIU Menglong¹, LI Wenhong¹

1 School of Chemical Engineering, Northwest University, Xi'an 710069, Shaanxi, China;
2 Shaanxi Research Center of Chemical Engineering Technology for Resource Utilization, Xi'an 710069, Shaanxi, China

Received:2017-07-11 Revised:2017-08-21 Online:2018-06-05 Published:2018-06-05

摘要/Abstract

摘要： 在4段固定床中试试验装置上，采用催化剂级配技术进行了为期400 h的低温煤焦油加氢制备清洁燃料油品中试试验，同时结合催化剂表征结果，研究了温度和空速对轻质油品收率及杂原子脱除率的影响，考察了中间产物、最终产物、汽油和柴油的性质和化学组成，此外研究了催化剂的稳定性和整个反应体系的质量平衡。研究结果表明：降低空速和升高温度可使得加氢产物中汽油和柴油的收率分别达到33.5%和64.2%，硫氮含量均低于10μg/g；整个反应过程油品是被逐步轻质化，同时加氢产物以直链烷烃、单环烷烃（CA）、烷基四氢萘和茚类化合物为主；汽油产品除了辛烷值之外，其他指标均符合国家标准，柴油基本达标；整个反应系统所使用催化剂均匀良好的稳定性，且在物料平衡的入方和出方之间存在约1.32%的可接受误差。

关键词: 低温煤焦油, 加氢, 中试试验

Abstract: The hydrogenation of low temperature coal tar(LTCT) was carried out in a four-stage fixed bed reactor with various catalysts combination on a pilot scale over 400h to produce clean liquid fuel. Meanwhile, the impacts of temperature, pressure and liquid hourly space velocity(LHSV) on light oil yield, heteroatomic removal were determined combined with the catalyst characterization results. And the properties and chemical composition of intermediate and final products, gasoline and diesel were investigated. Moreover, the stability of the catalyst and mass balance were analyzed. The results showed that the yield of gasoline and diesel can reach 33.5% and 64.2%, respectively, and capable of removing sulfur and nitrogen to less than 10μg/g though decreasing LHSV and increasing the temperature; the product oil was gradually cleaned, and after hydrotreating, decalins, tetralin and indenes and alkyl-cycloalkanes(CA) were the main hydrogenated products; in addition to RON (Research Octane Number), other indicators of gasoline products are in line with national specifications, diesel fraction meet the national specifications. Furthermore, the catalyst used throughout the reaction system has a uniform and good stability, and there is an acceptable error of about 1.32% between the inlet and the outlet.

Key words: low temperature coal tar, hydrogenation, pilot scale test

中图分类号:

TE624.4

崔文岗, 李冬, 樊安, 潘柳依, 牛梦龙, 李稳宏. 低温煤焦油加氢制备清洁燃料油品中试试验研究[J]. 化工进展, 2018, 37(06): 2192-2202.

CUI Wengang, LI Dong, FAN An, PAN Liuyi, NIU Menglong, LI Wenhong. Pilot-scale study of upgrading a low temperature coal tar distillate for the production of clean fuels[J]. Chemical Industry and Engineering Progress, 2018, 37(06): 2192-2202.

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低温煤焦油加氢制备清洁燃料油品中试试验研究

Pilot-scale study of upgrading a low temperature coal tar distillate for the production of clean fuels

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