Tin-sulfur based catalysts for acetylene hydrochlorination

Authors

YIBO WU
FUXIANG LI
XIAOQIANG LUO
GANG TIAN
YUNXIAO FENG
YONGJUN HAN
LI WANG
SONGMAO CHU
YUNLI CAO
KESHENG CAO
XIAOMING HU
XUEJUN SHI
SONGTIAN LI
GUOXV HE
QINGBIN LI

DOI

10.3906/kim-2010-36

Abstract

In the present work, tin-sulfur based catalysts were prepared using Na2SO3 and (CH3SO3)2Sn and were tested in acetylene hydrochlorination. Based on the analysis of experiments results, the acetylene conversion of (CH3SO3)2Sn/S@AC is still over 90% after a 50 h reaction, at the reaction conditions of T = 200 oC, VHCl/VC2H2 = 1.1:1.0 and C2H2-GSHV = 15 h-1. According to the results of X-ray photoelectron spectroscopy (XPS), HCl adsorption experiments, and acetylene temperature programmed desorption (C2H2-TPD), it is reasonable to conclude that the interaction between Sn and S not only can retard the oxidation of Sn2+ in catalysts but also strengthen the reactant adsorption capacity of tin-based catalysts. Furthermore, results obtained from nitrogen adsorption/desorption and XPS proved that the CH3SO3- can effectively decrease the coke deposition of (CH3SO3)2Sn/AC and thus prolong the lifetime of (CH3SO3)2Sn/AC.

Keywords

Sulfur, tin-based catalysts, acetylene hydrochlorination

First Page

566

Last Page

576

Recommended Citation

WU, YIBO; LI, FUXIANG; LUO, XIAOQIANG; TIAN, GANG; FENG, YUNXIAO; HAN, YONGJUN; WANG, LI; CHU, SONGMAO; CAO, YUNLI; CAO, KESHENG; HU, XIAOMING; SHI, XUEJUN; LI, SONGTIAN; HE, GUOXV; and LI, QINGBIN (2021) "Tin-sulfur based catalysts for acetylene hydrochlorination," Turkish Journal of Chemistry: Vol. 45: No. 3, Article 6. https://doi.org/10.3906/kim-2010-36
Available at: https://journals.tubitak.gov.tr/chem/vol45/iss3/6