Catalytic synthesis of thiophene from the reaction of n-butanol and carbon disulfide over K2CO3-promoted Cr2O3/γ-alumina catalyst

Abstract

The synthesis of thiophene from the reaction of n-Butanol and carbon disulfide was performed in a fixedbed reactor in the presence of promoted chromia on γ-alumina. A high selectivity to thiophene (87%) and a long lifetime of the catalyst (55 hour) was obtained at 450 o C with a 1 : 6 n-Butanol to carbon disulfide molar ratio and LHSV 1 h −1 over γ-Al 2 O 3 promoted by 7% K 2 CO 3 with 15% Cr 2 O 3 loaded. The catalytic behavior of these catalysts can be attributed to their dual-functional acidity and dehydrogenating and cyclized properties.

Experimental and theoretical research on catalytic synthesis of thiophene from furan and H2S

“…Alumina, activated carbon and silica gel have typically been used as carriers in the synthesis of thiophene (Li et al, 2008;Li et al, 2009). Therefore, these three carriers were selected in our experiments to study their influence on the yield of thiophene.…”