摘要
用Ｖ－Ｐ－Ｏ催化剂，以氧为氧化剂，进行丙烷部分氧化，主要产物为丙烯酸及乙酸。研究结果表明，钒源对催化剂反应性能的影响很大。在不加助剂时，催化剂的适宜Ｐ／Ｖ原子比为１．１０。在Ｃ０３／Ｏ２／Ｈ２Ｏ＝０．７２～１．０８／３５．３７／６３．７３，反应热点温度为６９３～７１３Ｋ，停留时间为１９．１～２５．４ｓ时，丙烯酸的最佳单程收率为１５％，选择性为３２％，相应的丙烷转化率为４６％。还对催化剂中添加金属助剂进行了探索。
V P O catalysts were used to prepare acrylic acid by partial oxidation of propane using gaseous oxygen as an oxidant.It was found that the sources of vanadium compounds used for prepare catalysts affected the characteristics of catalysts crucially.The best P/V atomic ratio of catalysts with no promoter was 1 10.The best yield and selectivity of acrylic acid formed were 15% and 32% respectively with the corresponding propane conversion of 46%,and 8%～9% of acetic acid was obtained simultaneously at the reaction conditions of C 0 3/O 2/H 2O=0 72～1 08/35 37/63 73,reaction hot point temperature of 693～713K and resident time of 19 1～25 4s.In the paper,catalysts promoted by metallic elements were tested.
出处
《石油学报（石油加工）》
EI
CAS
CSCD
北大核心
1998年第3期21-26,共6页
Acta Petrolei Sinica(Petroleum Processing Section)
关键词
丙烷
氧化
丙烯酸
V-P-O催化剂
propane,partial oxidation,acrylic acid,V P O catalyst
