Removal of aromatic hydrocarbons from reforming naphtha. Combined extraction - Extractive-azeotropic distillation process

被引：20

作者：

Gaile, AA ^{[1
]}

Zalishchevskii, GD ^{[1
]}

Gafur, NN ^{[1
]}

Semenov, LV ^{[1
]}

Varshavskii, OM ^{[1
]}

Fedyanin, NP ^{[1
]}

Koldobskaya, LL ^{[1
]}

机构：

[1] St Petersburg State Technol Inst, Kirishinefteorgsintez Ind Assoc, St Petersburg, Russia

来源：

CHEMISTRY AND TECHNOLOGY OF FUELS AND OILS | 2004年 / 40卷 / 04期

关键词：

reformate; aromatic hydrocarbons; extraction; extractive distillation; sulfolane; ethanol;

D O I：

10.1023/B:CAFO.0000041217.96743.22

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Separation of C-6-C-9 aromatic hydrocarbons from naphtha cut reformate by extraction with sulfolane followed by extractive/azeotropic distillation of the extract phase with sulfolane and ethanol. For mass ratios of sulfolane to feedstock of 1.6:1 and 0.28:1 in the stages of extraction and extractive-azeotropic distillation and a ratio of ethanol to feedstock of 0.032:1, raffinate was obtained with a yield of 65 wt. %, which satisfies the long-term environmental requirements for gasoline and benzene, toluene, and C-8 and C-9 aromatic hydrocarbons with a yield of 89, 77, 69, and 24 wt. %. Key words: reformate, aromatic hydrocarbons, extraction, extractive distillation, sulfolane, ethanol.

引用

页码：215 / 221

页数：7