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| HCHO-H2SO4缩合-萃取脱除汽油中噻吩硫化物 | |
| 引用本文： | 唐晓东,郭巧霞,陈亮,赖先熔,曾林.HCHO-H2SO4缩合-萃取脱除汽油中噻吩硫化物[J].石油学报(石油加工),2011,27(4):601-605. |
| 作者姓名： | 唐晓东 郭巧霞 陈亮 赖先熔 曾林 |
| 作者单位： | 1. 西南石油大学油气藏地质及开发工程国家重点实验室,四川成都610500;西南石油大学化学化工学院,四川成都610500 2. 中国石油天然气股份有限公司独山子石化分公司,新疆克拉玛依,833600 3. 西南石油大学化学化工学院,四川成都,610500 |
| 摘 要： | 缩合-萃取脱硫是利用 FCC 汽油中的噻吩类硫化物与 HCHO 在 H2SO4存在下发生缩合反应，生成的噻吩缩合物被抽提至水相，从而达到脱硫的目的。考察了 HCHO-H2SO4体系对 FCC 汽油缩合 萃取脱硫的效果。当 HCHO-H2SO4体系中 HCHO 占模拟汽油的体积分数为1.5%、H2SO4 (质量分数55%)占模拟汽油的体积分数为10%、反应温度70℃、反应时间60 min 时，缩合 萃取脱硫后模拟汽油的硫质量分数由1163 μg/g 降至139 μg/g，脱硫率为87.96%；但是对硫质量分数为652 μg/g 的 FCC 汽油的脱硫率仅为10.74%；固定 HCHO 与 H2SO4的体积比，增加二者的用量有助于提高 FCC 汽油的脱硫率。该体系对硫含量低的 FCC 汽油以及 FCC 重汽油脱硫效果较好，当 HCHO-H2SO4占 FCC 汽油的体积分数为40%时，FCC 中汽油硫质量分数由164 μg/g 降至65 μg/g，脱硫率达到60.37%。 |
| 关 键 词： | FCC汽油 噻吩 缩合-萃取脱硫 甲醛 硫酸 |
| 收稿时间： | 2010-03-19; |
Desulfurization of Thiophenic Sulfur From Gasoline by Condensation-Extraction of HCHO-H2SO4 |
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| TANG Xiaodong,GUO Qiaoxia,CHEN Liang,LAI Xianrong,ZENG Lin.Desulfurization of Thiophenic Sulfur From Gasoline by Condensation-Extraction of HCHO-H2SO4[J].Acta Petrolei Sinica (Petroleum Processing Section),2011,27(4):601-605. | |
| Authors: | TANG Xiaodong GUO Qiaoxia CHEN Liang LAI Xianrong ZENG Lin |
| Affiliation: | TANG Xiaodong~(1,2),GUO Qiaoxia~3,CHEN Liang~3,LAI Xianrong~2,ZENG Lin~2 (1.State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu 610500,China,2.College of Chemistry and Chemical Engineering,3.Dushanzi Petrochemical Branch Company,PetroChina Company Limited,Karamay 833600,China) |
| Abstract: | Condensation-extraction desulfurization is a way to desulfurize the thiophene sulfides in FCC gasoline,in which the thiophene sulfides were condensated with formaldehyde in the presence of sulfuric acid at first,and the thiophenic condensation compounds were extracted to the aqueous phase.To remove sulfur compounds from FCC gasoline by condensation of HCHO-H_2SO_4 system was studied.Under the conditions of 1.5%volume fraction formaldehyde,10%volume fraction sulfuric acid(sulfuric acid mass fraction 55%),rea... |
| Keywords: | FCC gasoline thiophene condensation-extraction desulfurization formaldehyde sulfuric acid |
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