【摘要】 无机膜反应器中乙苯脱氢反应的研究钟丽，杨维慎，刘杰，丛铀，刘世河，林励吾（中国科学院大连化学物理研究所，大连１１６０２３）关键词膜反应器，乙苯，脱氢，微孔氧化铝膜将耐高温、耐腐蚀、结构较稳定的无机膜应用于高温催化反应，使反应与分离联为一体，已成为近年...更多还原

【Abstract】 he catalytic dehydrogenation of ethylbenzene to styrene in microporous alumina membrane reactors was studied at 530 to 620℃ The experimental results indicated that the conversion in the membrane reactors increased in a certain range of purge gas rates, and then became steady. Higher temperature and/or lower space velocity (higher Da )were favorable to the increase of conversion. The results indicated that the reactant loss , which was typical for membrane reactor structure Ⅰ,was effectively reduced in structure Ⅱ, and a higher conversion of 10% was obtained at 620℃ in structure Ⅱ than in fixed bed reactor with no loss of styrene selectivity. In structure Ⅱ, the optimum membrane location was at half of the catalyst bed.更多还原