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对异丁烷催化脱氢催化剂进行了研究， 助催化剂Ｋ２Ｏ、ＣｕＯ 的引入改进了Ｃｒ２Ｏ３／Ａｌ２Ｏ３催化剂的活性和抗积炭性能． 同时考察了原料气空速、反应温度以及催化剂制备的焙烧温度对Ｋ２Ｏ－ＣｕＯ－Ｃｒ２Ｏ３／Ａｌ２Ｏ３ 催化剂反应性能的影响． ＸＲＤ 谱图表明， Ｃｒ２Ｏ３ 在催化剂中高分散，７００ ℃焙烧的催化剂中出现的ＫＣｕＯ 晶相对催化剂活性不利． 用ＮＨ３－ＴＰＤ和ＣＯ２－ＴＰＤ检测了催化剂表面的酸碱中心， 表明助剂Ｋ２Ｏ、ＣｕＯ调变了催化剂的酸中心和碱中心， 改进了催化剂的活性．
Catalysts for the catalytic dehydrogenation of isobutane have been studied. The introduction of promoters K2O and CuO improves the activity and anti-carbon deposition of Cr2O3 / Al2O3 catalysts. The effect of feed gas airspeed, reaction temperature and calcination temperature on the catalytic performance of K2O-CuO-Cr2O3 / Al2O3 catalyst were also investigated. XRD patterns show that Cr2O3 is highly dispersed in the catalyst and the KCuO crystal present in the catalyst calcined at 700 ° C is not favorable to the catalyst activity. The acid-base centers of the catalysts were measured by NH3-TPD and CO2-TPD, indicating that the promoters K2O and CuO changed the acid sites and the alkali sites of the catalysts and improved the catalyst activity.