キノリンから含窒素炭化物の調製とフィッシャー・トロプシュ反応の触媒担体への応用

Abstract

Quinoline was carbonized in an autoclave at 400°C in the presense of ZnC12 follow-ed by heat-treatment at 600°C. Atomic N/C of the feed quinoline is 0.111 whereas carbonized product was 0.095. Thus the carbonized product containing nitrogen is efficiently prepared. Evolution of hydrocarbon gases during polymerization reaction and analyses of benzene-soluble materials indicate that hydrogenation of aromatic rings and subsequent cracking of produced naphthenic rings also pro-ceed. Possible mechanisms for these reactions are proposed. The Fischer-Tropsch synthesis was car-ried out on the prepared carbonaseous material containing nitrogen as a catalyst support. The catalysts impregnated with 1.6 wt‰ Co and 5.0wt‰ Fe showed higher olefin selectivities (especially more than 50‰ for C3 hydrocarbons) than corresponding catalysts prepared from a carbonaseous pro-duct from anthracene, which contained no nitrogen. This suggests that support effects originatedfrom electron donating properties of nitrogen appear for the catalytic reactions, in compatible with the generally observed behavior of an addition of potassium as an electron donnor.