Selective catalytic oxidation of H2S over V2O5 supported on TiO2-pillared clay catalysts in the presence of water and ammonia

被引：70

作者：

Bineesh, Kanattukara Vijayan ^{[1
]}

Kim, Dong-Kyu ^{[1
]}

Kim, Moon-Il ^{[1
]}

Park, Dae-Won ^{[1
]}

机构：

[1] Pusan Natl Univ, Div Chem Engn, Pusan 609735, South Korea

来源：

APPLIED CLAY SCIENCE | 2011年 / 53卷 / 02期

基金：

新加坡国家研究基金会;

关键词：

Pillared clay; Selective catalytic oxidation; Hydrogen sulfide; Sulfur; Vanadia; TITANIA-PILLARED MONTMORILLONITE; HYDROGEN-SULFIDE; ELEMENTAL SULFUR; MIXED-OXIDE; DIFFUSE-REFLECTANCE; EXCESS WATER; VANADIUM; REDUCTION; NO; PERFORMANCE;

D O I：

10.1016/j.clay.2010.12.022

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

This study focuses on the selective catalytic oxidation of hydrogen sulfide (H2S) over vanadia supported on TiO2-pillared clay catalysts (V/Ti-PILCs) in the presence of ammonia and water. The synthesized V/Ti-PILC catalysts were characterized by chemical analysis, surface area/pore volume measurements. Fourier transform infrared (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), UV-vis-diffuse reflectance spectroscopy (UV-vis-DRS), temperature-programmed reduction by H-2 (H-2-TPR), and thermogravimetric (TG) analysis. The results of a catalytic performance study showed that in the presence of the V/Ti-PILC catalysts, H2S was successfully converted into elemental sulfur and ammonium thiosulfate (ATS) without any notable sulfur dioxide emission. This superior performance of the V/Ti-PILC catalysts was probably related to the uniform dispersion of the vanadia species on the Ti-PILC support. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：204 / 211

页数：8

共 80 条

[1]

[Anonymous], J NAT GAS CHEM

[2]

Effect of vanadium on the behaviour of unsulfated and sulfated Ti-pillared clay catalysts in the SCR of NO by NH3 [J].