摘要
采用捏合法制备了以铬为主,银、铈为助剂的钒钛催化剂,并在固定床反应器中考察其催化2-甲基吡啶氨氧化合成2-氰基吡啶。结果表明,在反应温度374℃,物料n(2-甲基吡啶)∶n(氨)∶n(空气)=1∶2.5∶45和空速1.2 h^(-1)的最佳反应条件下,2-甲基吡啶转化率为99.6%,2-氰基吡啶收率为88.4%。
A vanadium-titanium catalyst using chromium as the main active component and silver and cerium as the promoters was prepared by mixing method.Performance of the catalyst for ammoxidation of 2-methylpyridine to 2-cyanopyridine was investigated in a fixed-bed reactor.The results showed that under the optimum reaction condition of 374℃,2-methylpyridine/ammonia/air molar ratio of 1∶2.5∶45 and LHSV of 1.2 h^(-1),2-methylpyridine conversion of 99.6%and 2-cyanopyridine yield of 88.4%was obtained.
作者
张聪
刘小琴
Zhang Cong;Liu Xiaoqin(Hanzhong Laitu Technology Development Co., Ltd.,Hanzhong 723200,Shaanxi,China)
出处
《工业催化》
CAS
2022年第2期74-76,共3页
Industrial Catalysis
关键词
精细化学工程
氨氧化
2-甲基吡啶
2-氰基吡啶
fine chemical engineering
ammonia oxidation
2-methylpyridine
2-cyanopyridine
