|本期目录/Table of Contents|

[1]任研研,武林希彦,翟志清,等.中压加氢裂化装置生产5号工业白油的工艺改进[J].石化技术与应用,2024,2:116-120.
 REN Yan-yan,WU Lin-Xi-yan,ZHAI Zhi-qing,et al.Process improvement of producing 5# industrial white oil in medium pressure hydrocracking unit[J].Petrochemical technology & application,2024,2:116-120.
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中压加氢裂化装置生产5号工业白油的工艺改进(PDF)

《石化技术与应用》[ISSN:1009-0046/CN:62-1138/TQ]

期数:
2024年2期
页码:
116-120
栏目:
出版日期:
2024-03-10

文章信息/Info

Title:
Process improvement of producing 5# industrial white oil in medium pressure hydrocracking unit
文章编号:
1009-0045(2024)02-0116-05
作者:
任研研1武林希彦2翟志清1杨新梅3陈正杰1
1.中国石化洛阳分公司 技术质量部,河南 洛阳 471000;2.中国石化宁波工程有限公司 建设安装分公司,浙江 宁波 315103;3.乌鲁木齐市检验检测中心(乌鲁木齐市粮油质量监测站),新疆 乌鲁木齐 830000
Author(s):
REN Yan-yan1WU Lin-Xi-yan2ZHAI Zhi-qing1 YANG Xin-mei3CHEN Zheng-jie1
1. Technical Quality Department of Luoyang Petrochemical Company,SINOPEC,Luoyang 471000,China;2. Construction and Installation Branch of Ningbo Engineering Co Ltd,SINOPEC,Ningbo 315103,China;3. Urumqi Inspection and Testing Center (Urumqi Grain and Oil Quality Monitoring Station),Urumqi 830000,China
关键词:
中压加氢裂化5号工业白油柴油蜡油加氢裂化尾油运动黏度
Keywords:
medium pressure hydrocracking5# industrial white oildieselwax oilhydrocracking tail oilkinematic viscosity
分类号:
TE 624.4+32
DOI:
DOI:10.19909/j.cnki.ISSN1009-0045.2024.02.0116
文献标识码:
B
摘要:
在中国石化洛阳分公司150万t/a蜡油中压加氢裂化装置中,分别采用减压轻蜡油、直馏柴油、催化柴油组成的混合原料(蜡油进料模式)和直馏柴油、催化柴油、渣油加氢柴油组成的混合原料(柴油进料模式)进行了5号工业白油的生产,通过工艺改进,解决了产品运动黏度不达标的问题。结果表明:在柴油进料模式下,将循环氢流量由195 717 m3/h提高至214 780 m3/h,反应系统压力由8.7 MPa提高至10.2 MPa,精制(裂化)反应器入口温度由300(321) ℃升高至318(352) ℃,加氢裂化尾油产品的运动黏度降低至5.008 mm2/s;将分馏塔汽提介质由蒸汽改为氮气,可解决尾油带水的问题;将尾油部分外甩至催化装置或罐区,以解决易着色物质在尾油中富集的问题;在蜡油原料模式下,将航空煤油抽出量由30 t/h提高至45 t/h,柴油抽出量由63 t/h降低至55 t/h,柴油侧线产品的闪点和运动黏度分别增加至132 ℃,4.361 mm2/s,达到白油指标要求。
Abstract:
The 5# industrial white oil was produced by using the mixed raw materials composed of vacuum light wax oil, straight-run diesel and catalytic diesel (wax oil feeding mode) and the mixed raw materials composed of straight-run diesel, catalytic diesel and residual hydrodiesel oil (diesel feeding mode) in the 1.5 Mt/a wax oil medium pressure hydrocracking unit of Luoyang Petrochemical Company of SINOPEC. The problem that the kinematic viscosity of the product was not up to standard was solved. The results showed that the circulating hydrogen flow rate was increased from 195 717 m3/h to 214 780 m3/h, the reaction system pressure was increased from 8.7 MPa to 10.2 MPa, and the inlet temperature of the refining (cracking) reactor was increased from 300(321) ℃ to 318 (352) ℃ in the diesel feeding mode. The kinematic viscosity of the hydrocracking tail oil product was reduced to 5.008 mm2/s. The problem of water in tail oil could be solved by changing the stripping medium of fractionator from steam to nitrogen. The tail oil part was thrown out to the catalytic unit or tank field to solve the problem of enrichment of easily colored substances in the tail oil. The extraction amount of aviation kerosene was increased from 30 t/h to 45 t/h, the extraction amount of diesel was reduced from 63 t/h to 55 t/h, and the flash point and kinematic viscosity of diesel line products were increased to 132 ℃, 4.361 mm2/s, which met the requirements of white oil indicators in the wax oil feeding mode.

参考文献/References

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备注/Memo

备注/Memo:
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更新日期/Last Update: 2024-03-10