Enhancemen Effect of Hydrogen Sulfide Over Metal Ion-Exchange Mesoporous Silicate FSM-16 for Acid Catalyzed Reactions.

Lebong Andalaluna (Deputy for Information, Energy, Material and Environmental Technology Agency for the Assesment and Application of Technology (BPPT) JI. M. H. Thamrin 8, Building II Fl. 21, Jakarta 10340, INDONESIA)
Masatoshi Sugioka (Department of Applied Chemistry Muroran Institute of Technology 27-1 Mizumoto-cho, Muroran-shi 050-8585, JAPAN)

ASEAN Journal of Chemical Engineering
Vol 5, No 1 (2005)

The activity enhancement of metal ion-exchange mesoporous silicate FSM-16 (MeFSM-16) by sulfiding with hydrogen sulfide was studied using acid-catalyzed reactions, isomerization of I-butene, cis-2-butene and cyclopropane, as model reactions. It was revealed that the catalytic activities of MeFSM-16 for the acid-catalyzed reactions were remarkably enhanced after sulfiding with hydrogen sulfide. Moreover, it was observed that the optimum enhancement effect of hydrogen sulfide was obtained at the sulfiding temperature of 200°C. Infrared spectroscopic measurement of pyridine adsorption over sulfided MeFSM-16 showed that the activity enhancement of MeFSM-16 resulted in the generation of new Bronsted acid sites. Keywords: Metal ion-exchange, mesoporous silicate, hydrogen sulfide, and activity enhancement.