SYNTHESIS OF MIXED ALCOHOLS FROM CO2 CONTAINED SYNGAS ON SUPPORTED MOLYBDENUM SULFIDE CATALYSTS

The performances of active carbon supported molybdenum sulfide catalys ts prepared by different procedures or promoted by different elements in the synthesis of mixed alcohols from CO2 containing syngas were exa mined. The results showed that high alcohol activity and selectivity c ould be obtained by employing a rapid drying procedure and employing a H2S-H-2 stream for (NH4)(2)MoS4 decomposition. Addition of Co, Cr and Cl to K-Mo/C catalyst led to an increase in the alcohol activity or s electivity. The presence of CO2 in the feed caused a greater amount of water to be produced but reduced the formation of CO2. The product di stribution was also strongly influenced by the presence of either CO2 or H2S in the feed. Addition of CO2 reduces the formation of higher al cohols while H2S increases higher alcohol formation.