直馏柴油加氢裂化生产化工原料及喷气燃料反应规律研究  

Study on Reaction Regulation of Straight-run Diesel Hydrocracking to Produce Chemical Raw Materials and Jet Fuel

作　　者：郭笑楠 曹正凯 王东锋[2] 李秀强[3] 周景伦 赵洋[3] GUO Xiaonan;CAO Zhengkai;WANG Dongfeng;LI Xiuqiang;ZHOU Jinglun;ZHAO Yang(Sinopec(Dalian)Research Institute of Petroleum and Petrochemicals Co.,Ltd.,Dalian Liaoning 116041,China;CNPC Guangxi Petrochemical Company,Qinzhou Guangxi 535008,China;CNPC Lanzhou Petrochemical Company,Lanzhou Gansu 730060,China)

机构地区：[1]中石化(大连)石油化工研究院有限公司,辽宁大连116041 [2]中国石油天然气股份有限公司广西石化分公司,广西钦州535008 [3]中国石油天然气股份有限公司兰州石化分公司,甘肃兰州730060

出　　处：《当代化工》2024年第3期571-576,共6页Contemporary Chemical Industry

基　　金：国家重点研发计划,高效加氢处理催化材料及过程研究(No.2022YFA1504404)。

摘　　要：分别考察了体积空速、反应压力以及裂化反应温度对直馏柴油加氢裂化产品分布及性质的影响。研究表明,在相同反应温度与压力的条件下,当裂化体积空速由0.50 h^(-1)升高到1.25 h^(-1)时,重石脑油芳潜由47.5%升高到55.8%,喷气燃料馏分烟点由26.0 mm降低至22.0 mm,>260℃柴油馏分BMCI由13.92增大到16.14。在反应温度与体积空速不变的条件下,当反应压力由6MPa提高至8MPa时,重石脑油芳潜由62.0%降低至54.5%,喷气燃料烟点由21.2 mm提高至23.7 mm,>260℃柴油馏分BMCI由16.13降低至14.63。当反应温度由375℃升高到385℃时,重石脑油芳潜由61.2%降低至57.5%,喷气燃料烟点由23.2 mm提高至25.5 mm,>260℃柴油馏分BMCI由22.27降低到16.95。因此,直馏柴油加氢裂化所产重石脑油馏分是优质的催化重整原料,>260℃柴油馏分可作为蒸汽裂解制乙烯原料,控制适当的反应条件,还可以生产出合格的3#喷气燃料。The effects of volumetric space velocity,reaction pressure,and cracking reaction temperature on the distribution and properties of straight run diesel hydrocracking products were investigated.It was shown that under the same reaction temperature and pressure conditions,when the cracking volume space velocity increased from 0.50h^(-1) to 1.25h^(-1),the aromatic potential of heavy naphtha increased from 47.5%to 55.8%,the smoke point of jet fuel fraction decreased from 26.0 mm to 22.0 mm,and the BMCI of diesel fraction>260℃ increased from 13.92 to 16.14.Under the condition of constant reaction temperature and volume space velocity,when the reaction pressure was increased from 6 MPa to 8 MPa,the aromatic potential of heavy naphtha decreased from 62.0%to 54.5%,the smoke point of jet fuel increased from 21.2 mm to 23.7 mm,and the BMCI of diesel fractions above 260℃ decreased from 16.13 to 14.63.When the reaction temperature increased from 375℃ to 385℃,the aromatic potential of heavy naphtha decreased from 61.2%to 57.5%,the smoke point of jet fuel increased from 23.2 mm to 25.5 mm,and the BMCI of diesel fractions above 260℃ decreased from 22.27 to 16.95.Therefore,the heavy naphtha fraction produced by direct run diesel hydrocracking was a high-quality catalytic reforming feedstock,and the diesel fraction above 260℃ could be used as a steam cracking feedstock for ethylene production.By controlling appropriate reaction conditions,qualified 3#jet fuel could also be produced.

关 键 词：直馏柴油 加氢裂化 产品性质 产品分布 

分 类 号：TQ113.243[化学工程—无机化工]