纳米α-FeOOH的制备及在煤-油共炼中的催化性能  

Preparation of Nano-α-FeOOH and Its Catalytic Performance in Coal-Oil Co-Processing

作　　者：金建 程相林[1] 毕秦岭 赵建宏[1] 王建设[1] 强志华 JIN Jian;CHENG Xianglin;BI Qinling;ZHAO Jianhong;WANG Jianshe;QIANG Zhihua(School of Chemical Engineering and Energy,Zhengzhou University,Zhengzhou 450001,China;Petrochemical Research Institute,CNPC,Beijing 102206,China)

机构地区：[1]郑州大学化工与能源学院,河南郑州450001 [2]中国石油石油化工研究院,北京102206

出　　处：《石油学报（石油加工）》2020年第1期63-69,共7页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：中国石油科技创新研究项目(2015D-5006-0408)资助

摘　　要：以FeSO4·7H2O为铁源,乙醇溶液作为液体分散相,分别以聚乙二醇、聚乙烯醇、十二烷基苯磺酸钠、十六烷基三甲基溴化铵为分散剂,加入氨水沉淀剂,采用液相沉积-空气氧化法制备纳米α-FeOOH。采用X射线衍射、扫描电镜、透射电镜对制备的纳米α-FeOOH进行表征。将制备的纳米α-FeOOH用做委内瑞拉劣质重油和内蒙古鄂尔多斯褐煤共炼催化剂。结果表明:分散剂对α-FeOOH催化剂粒径大小影响不大;乙醇作为分散相制备的催化剂晶体颗粒疏松,结构均匀,粒径为30~80 nm、长度为350~650 nm,而且催化剂颗粒之间的黏结性大大降低;与以水为分散相不加分散剂制备的催化剂相比,乙醇作分散相制备的催化剂的煤-油共炼轻油收率从70.77%提高到了83.54%。Nano-sizedα-FeOOH was prepared through the liquid-phase deposition/air oxidation method by using FeSO4·7H2O as raw materials,ethanol as the liquid dispersing phase,polyethylene glycol,polyvinyl alcohol,sodium dodecyl benzene sulfonate and hexadecyl trimethyl ammonium bromide as the dispersing agent and ammonia as the precipitating agent.The prepared nano-α-FeOOH was characterized by XRD,SEM and TEM.Afterwards,the nano-α-FeOOH was used as co-processing catalyst for Venezuelan inferior heavy oil and Ordos lignite Inner Mongolia.The results show that the dispersant has little effect on the particle size of theα-FeOOH catalyst.The crystal particles of the catalyst prepared by using ethanol as the dispersing phase are loose and uniform with the size of 30-80 nm and the length of 350-650 nm,and the adhesion between the catalyst particles is reduced greatly.Compared with the catalyst prepared by using water as the dispersing phase without the dispersant,the yield of light oil from co-processing increases from 70.77%to 83.54%.

关 键 词：纳米α-FeOOH催化剂 分散相 煤油共炼 油收率 

分 类 号：TQ536.1[化学工程—煤化学工程] TE624[石油与天然气工程—油气加工工程]