Selective Syntheis sof Methanol from CO + H_2 over Pd Sulfide in the Presence of H_2S

摘要

Both bulk and SiO_2-supported Pd sulfides were found to show methanol synthesis activity from CO + H_2 (syngas). SiO_2-supported Pd sulfide yielded 120 g kg-cat~(-1) h~(-1) of methanol at 613 K, 5.1 MPa and 20 m~3 (STP) kg-cat~(-1) h~(-1). In the presence of H_2S 120 ppm in concentration, it preserved 40% of the activity that was obtained under the sulfur-free conditions.