仲丁醇脱氢制甲乙酮催化剂的工业应用

Industrial Application of Catalyst for Dehydrogenation of sec-Butyl Alcohol to Methyl Ethyl Ketone

开发了用于仲丁醇脱氢制甲乙酮的BC-DH2004催化剂,并在工业装置中应用。BC-DH2004催化剂的性能稳定,在实验室小试装置上的操作周期超过1250h,同时,该催化剂具有较好的热稳定性。工业应用结果表明,BC-DH2004催化剂的活性和选择性较好,在催化剂床层温度200～280℃、操作压力低于0.5MPa、进料仲丁醇液态空速低于6.0h-1的条件下,仲丁醇的平均单程转化率大于75%,甲乙酮的选择性大于95%;经工业再生后,BC-DH2004催化剂对仲丁醇脱氢反应的催化活性得以恢复。BC-DH2004催化剂具有良好的稳定性,操作周期超过4周,能满足甲乙酮工业装置的工艺要求。

BC-DH2004 catalyst for dehydrogenation of sec-butyl alcohol to produce methyl ethyl ketone were prepared and applied in industrial unit. Laboratory experiments showed that performance of BC-DH2004 catalyst is steady ： operating cycle is more than 1 250 h and thermal stability is good. In industrial operation, activity and selectivity of BC-DH2004 catalyst is also promising： single pass conversion of sec-butyl alcohol is more than 75% and selectivity to methyl ethyl ketone is more than 95% under bed temperature of catalyst 200 - 280 ℃, operating pressure less than 0.5 MPa and sec- butyl alcohol feed LHSV less than 6.0 h^-1. After regeneration, activity of BC-DH2004 catalyst for sec- butyl alcohol dehydrogenation is recoverable and steady. The industrial application shows that performance of BC-DH2004 catalyst is good during long operating cycle more than 4 weeks. BCDH2004 catalyst can meet the industrial requirement of methyl ethyl ketone production.