A PROCESS FOR PREPARING ALKENES BY A NON OXIDATIVE DEHYDROGENATION PROCESS

摘要

The preparation of a compound of formula R1-C(R2)=CH2 (R1 and R2 are a phenyl, alkyl or alkenyl group or a hydrogen atom) by contacting a mixture of steam and a compound of formula R1-C(R2)(H)-CH3 at elevated temperature under non-oxidative dehydrogenation conditions with a catalyst having a spinel structure allows lower ratios steam to compound of formula R1-C(R2)(H)-CH3, a higher selectivity to the compound of formula R1-C(R2)=CH2 and a lower temperature when lithium is present in the spinel structure.