Syngas conversion to light olefins over magnetite catalysts prepared from various iron salts.

Direct catalytic conversion of synthesis gas to lower olefins

“…(3) was also reduced (Davis and Wilson, 1955; Davis et al, 1955). Okabe et al (1985) observed that a small amount of chlorine was more preferable than potassium promotion of Fe catalysts for light olefin selectivity. This enhancement by chlorine was attributed to the prevention of reduction of the catalyst surface to metallic iron, thereby reducing the hydrogenation activity of the catalyst, which results in high olefin selectivities.…”

“…With magnetite catalysts prepared from iron chlorides, high selectivity to light olefins (C2-C4) of 33-36% was obtained in the hydrogenation of CO in a fixed-bed reactor at 325 °C and 10 atm. Deactivation of the catalyst occurred to some extent because of the ineffective heat removal (Okabe et al, 1985).…”