从高温煤焦油中分离缩合芳香族化合物的基础研究和技术开发  

Basic Research and Technology Development for the Separation of Condensed Aromatics From High-Temperature Coal Tar

作　　者：魏贤勇 宗志敏[2] 赵炜[2] 倪中海[2] 曹景沛[2] 樊星[3] 赵云鹏 刘滋武[2] 彭耀丽[2] 梁静[2] 赵小燕[2] 陶雪钰 亢玉红[4] 莫文龙[1] 丛兴顺[5] 王玉高[6] 刘中秋[7] 刘光辉 郭宪厚 麻志浩 高华帅 李佳昊 陈逸峰 闫卫卫 尹凡 蒋志杰 余新柯 WEI Xianyong;ZONG Zhimin;ZHAO Wei;NI Zhonghai;CAO Jingpei;FAN Xing;ZHAO Yunpeng;LIU Ziwu;PENG Yaoli;LIANG Jing;ZHAO Xiaoyan;TAO Xueyu;KANG Yuhong;MO Wenlong;CONG Xingshun;WANG Yugao;LIU Zhongqiu;LIU Guanghui;GUO Xianhou;MA Zhihao;GAO Huashuai;LI Jiahao;CHEN Yifeng;YAN Weiwei;YIN Fan;JIANG Zhijie;YU Xinke(State Key Laboratory of Chemistry and Utilization of Carbon-Based Energy Resources Jointly Built by Xinjiang Uyghur Autonomous Region and Ministry of Science and Technology,Xinjiang University,Urumqi 830046,China;Key Laboratory of Coal Processing and Efficient Utilization,Ministry of Education,China University of Mining&Technology,Xuzhou 221116,China;Chemical and Biological Engineering,Shandong University of Science and Technology,Qingdao 266590,China;Shaanxi Key Laboratory of Low Metamorphic Coal Clean Utilization,School of Chemistry and Chemical Engineering,Yulin University,Yulin 719000,China;College of Chemistry,Chemical Engineering and Material Science,Zaozhuang University,Zaozhuang 277160,China;College of Chemistry and Chemical Engineering,Taiyuan University of Technology,Taiyuan 030024,China;College of Chemistry and Chemical Engineering,Qufu Normal University,Qufu 273165,China;Department of Aviation Oil and Material,Air Force Logistics College,Xuzhou 221000,China)

机构地区：[1]新疆大学省部共建碳基能源资源化学与利用国家重点实验室,新疆乌鲁木齐830046 [2]中国矿业大学煤炭转化与高效洁净利用教育部重点实验室,江苏徐州221116 [3]山东科技大学化学与生物工程学院,山东青岛266590 [4]榆林学院陕西省低变质煤洁净利用重点实验室,陕西榆林719000 [5]枣庄学院化学化工与材料科学学院,山东枣庄277160 [6]太原理工大学化学化工学院,山西太原030024 [7]曲阜师范大学化学与化工学院,山东曲阜273165 [8]空军勤务学院航空油料系,江苏徐州221000

出　　处：《石油学报（石油加工）》2022年第3期500-511,共12页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：国家自然科学基金重点项目(20936007);国家自然科学基金委员会煤炭联合基金重点项目(51134021);国家自然科学基金委员会新疆联合基金重点项目(U1503293);国家自然科学基金委员会山西煤基低碳联合基金重点项目(U1610223)资助。

摘　　要：高温煤焦油(High-temperature coal tar,简称HTCT)是以焦煤为主的烟煤在隔绝空气的条件下于1000℃左右热解得到的深褐色黏稠状液体,一般占原料煤质量的5%左右。HTCT的组成极其复杂,主要组分是缩合芳香族化合物,特别是缩合芳烃。缩合芳香族化合物用途广泛,是十分重要的有机化学品。作为纯品,缩合芳香族化合物的价格一般随着芳环缩合程度的增加而剧增;在相同环数的情况下,含杂原子(特别是含多个杂原子)的缩合芳香族化合物的价格远高于缩合芳烃的价格。由于HTCT组成的复杂性,从HTCT中分离出缩合芳香族化合物纯品面临极大的挑战。针对传统分离HTCT工艺存在的能耗大和分离效果差的问题,本研究团队开发了通过逐级萃取、加压梯度柱层析和分步结晶的逐级分离HTCT的技术,较详细地考察了分离过程中涉及的溶质、溶剂和固定相之间的作用力,从HTCT中成功地分离出一系列缩合芳香族化合物纯品;利用该技术,也可从煤的萃取物和热溶物中富集一系列有机化合物,包括缩合芳香族化合物。High-temperature coal tar(HTCT)is a deep brown viscous liquid obtained by pyrolyzing bituminous coal(dominated by coking coal)at about 1000℃at air-free atmosphere,generally accounting for about 5%of the total mass of feed coal.HTCT has an extremely complex composition,and its key components are condensed aromatics,especially condensed arenes.Condensed aromatics are known as very important organic chemicals with wide applications.As pure chemicals,the prices of condensed aromatic compounds generally increase dramatically with increasing condensation degree of their aromatic rings;in the case of the same number of aromatic rings,the prices of heteroatom(especially multiple heteroatoms)-containing condensed aromatics are much higher than those of condensed arenes.Due to the complexity of HTCT composition,separating pure condensed aromatics from a high-temperature coal tar faces an extremely challenge.In light of the problems such as high energy consumption and poor separation effect encountered by conventional HTCT separation technologies,the team has developed a technology for sequential HTCT separation through sequential extraction,pressurized gradient column chromatography and fractional crystallization.The interactions among the solutes,solvents and stationary phases involved in the separation process were investigated in detail,and a series of pure condensed aromatics were successfully separated from HTCT.Using this technology,a series of organic compounds,including condensed aromatics,were also enriched from coal extracts and thermally dissolved coals.

关 键 词：高温煤焦油 逐级萃取 加压梯度柱层析 分步结晶 缩合芳香族化合物 

分 类 号：TQ53[化学工程—煤化学工程]