Desulfurization of diesel fuels by adsorption via π-complexation with vapor-phase exchanged Cu(l)-Y zeolites

被引：309

作者：

Hernández-Maldonado, AJ ^{[1
]}

Yang, RT ^{[1
]}

机构：

[1] Univ Michigan, Dept Chem Engn, Ann Arbor, MI 48109 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2004年 / 126卷 / 04期

关键词：

D O I：

10.1021/ja039304m

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Desulfurization of a commercial diesel fuel by vapor-phase ion exchange (VPIE) copper(I) faujasite zeolites was studied in a fixed-bed adsorber operated at ambient temperature and pressure. The zeolite adsorbed approximately five thiophenic molecules per unit cell. After treating 18 cm3 of fuel, the cumulative average sulfur concentration detected was 0.032 ppmw-S. GC-FPD results showed that the π-complexation sorbents selectively adsorbed highly substituted thiophenes, benzothiophenes, and dibenzothiophenes from diesel, which is not possible by using conventional hydrodesulfurization (HDS) reactors. The high sulfur selectivity and high sulfur capacity of the VPIE Cu(II)-zeolites were due to π-complexation. Copyright © 2004 American Chemical Society.

引用

页码：992 / 993

页数：2

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