Review of catalytic dehydrogenation of isobutene

Recent progress of the catalysts, reaction routes and mechanism of isobutane dehydrogenation is reviewed. The key for isobutane dehydrogenation is to synthesize non-noble mental catalysts. Furthermore, the influence of supports and additives on isobutane dehydrogenation is summed up in detail, especially acid-base supports and additives and pore structure of supports, which indicates that weak acidic sites are apt to isobutane dehydrogenation. Smaller pore structure of catalysts can improve selectivity of isobutane. Besides, the study of coke over catalysts reveals that weak acidic sites of supports, dispersion of active sites and basic sites of additives favors improved action of coke.