TRANSFORMATION OF ETHENE INTO KETONES BY CO AND H-2 OVER NIMO SULFIDECATALYSTS

The reaction of ethene, CO and H-2 On NiMo sulfide catalysts at 240-29 0 degrees C and at 1 MPa gives ethane, diethyl ketone, propyl ethyl ke tone, propanal and diethyl sulfide (DES). The support (carbon, alumina , magnesia and zirconia) influenced the activity of catalysts and the ratio between oxygenated and sulfur products. The carbon supported cat alyst was the most active, producing the lowest proportion of DES. The overall oxo selectivity was practically constant in a broad range of ethene conversion. Selectivity into the formation of diethyl ketone in creased by lowering the reaction temperature and H2S concentration in the feed. A selectivity of about 25% into diethyl ketone was achieved with a feed containing 0.4% H2S at 240 degrees C.