メタノールからの低級オレフィン合成法

概要

論文の詳細を見る
Besides MTG (methanol to gasoline) process, synthesis of lower olefins such as ethylene and propene received much attention. Recent development in synthesis of lower olefins by methanol conversion over zeolite and non-zeolite catalysts has been described. Reaction pathway and reaction mechanism are briefly mentioned. The modification of ZSM-5 with trimethyl phosphite, etc., enhanced the selectivity. Small-pore zeolites such as erionite and ZSM-34 produce only low molecular weight hydrocarbons, which is due to the shape-selectivity. A serious problem of these zeolites is their short-life time owing to rapid deactivation through coke formation.<BR>In heteropoly compounds, the olefin-selectivity is improved as the contribution of the bulk phase of catalysts (pseudo-liquid phase) decreases.
社団法人有機合成化学協会の論文