|本期目录/Table of Contents|

[1]王燕,张占全*,雷俊伟,等.直馏柴油加氢改质多产优质乙烯裂解原料[J].石化技术与应用,2024,2:88-92.
 WANG Yan,ZHANG Zhan-quan,LEI Jun-wei,et al.Producing more high quality ethylene cracking feedstock by hydrogenation modification of straight-run diesel[J].Petrochemical technology & application,2024,2:88-92.
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直馏柴油加氢改质多产优质乙烯裂解原料(PDF)

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

期数:
2024年2期
页码:
88-92
栏目:
出版日期:
2024-03-10

文章信息/Info

Title:
Producing more high quality ethylene cracking feedstock by hydrogenation modification of straight-run diesel
文章编号:
1009-0045(2024)02-0088-05
作者:
王燕张占全*雷俊伟郭荣王春燕吴培李荣观侯远东
中国石油石油化工研究院,北京 102206
Author(s):
WANG YanZHANG Zhan-quanLEI Jun-wei GUO RongWANG Chun-yanWU PeiLI Rong-guanHOU Yuan-dong
Petrochemical Research Institute, PetroChina,Beijing 102206,China
关键词:
直馏柴油乙烯裂解原料加氢改质分子炼油链烷烃乙烯收率
Keywords:
straight-run dieselethylene cracking feedstockhydrogenation modificationmolecular refiningparaffinethylene yield
分类号:
TE 626.24
DOI:
DOI:10.19909/j.cnki.ISSN1009-0045.2024.02.0088
文献标识码:
B
摘要:
采用柴油缓和加氢裂化技术对直馏柴油进行改质,考察不同工艺条件对直馏柴油转化率以及加氢裂化产物性质的影响。结果表明:在反应压力为7.0 MPa,体积空速为2.0 h-1的条件下,随着反应温度由340 ℃升高至350 ℃,直馏柴油的转化率由16%提高至50%;随着转化率的提高,全馏分柴油的芳烃指数降低,链烷烃质量分数增加;在反应温度为345 ℃的条件下,初馏点~91.0 ℃石脑油馏分段的链烷烃质量分数为78%,用作乙烯裂解原料时,乙烯收率为29.2%,乙烯+丙烯+丁二烯(三烯)收率为62.0%;大于234 ℃~终馏点柴油窄馏分段的链烷烃质量分数大于60%,用作乙烯裂解原料时,乙烯收率为31.9%,三烯收率为64.6%。
Abstract:
Straight-run diesel was modified by mild hydrocracking process. The effect of different process conditions on the conversion rate of straight-run diesel and the properties of hydrocracking products was investigated. The results showed that under the conditions of reaction pressure of 7.0 MPa and volume space velocity of 2.0 h-1, the conversion rate of straight-run diesel oil increased from 16% to 50% with the increasing of reaction temperature from 340 ℃ to 350 ℃. With the increasing of conversion rate, the aromatics index of total distillate diesel decreased and the mass fraction of paraffin increased. Under the condition of reaction temperature of 345 ℃, the paraffin mass fraction of naphtha from initial distillation point to 91.0 ℃ was 78%, and the ethylene yield was 29.2% and the triene (ethylene,propylene,butadiene)yield was 62.0% as ethylene cracking raw material. When the paraffin mass fraction of narrow fraction of diesel oil from 234 ℃ to final distillation point was more than 60%,the ethylene yield was 31.9% and the triene yield was 64.6% as ethylene cracking raw material.

参考文献/References

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备注/Memo

备注/Memo:
中国石油天然气股份有限公司资助项目(项目编号:22-LH-66-05)
更新日期/Last Update: 2024-03-10