摘要
用多次浸渍法制备了Ｐｔ—Ｓｎ—Ｋ／Ａｌ２Ｏ３丙烷催化肥氢制丙烯催化剂，该催化剂Ｐｔ含量小于０．４５％（质量），制备容易，重复性好；分别在催化剂装量为２ｍＬ和１００ｍＬ的试验装置上考察了其长周期运转情况。在常压、６１０℃、丙烷与高纯氢以１：１（ｍｏｌ）进料，气体体积空速为１５００ｈ￣（－１）的条件下，每反应５０ｈ再生一次，累计运转５００ｈ，催化剂的活性无明显降低，丙烯选择性和收率的平均值分别大于８４％和３２％。单程连续运转７４ｈ，生成丙烯的选择性和收率的平均值分别为８８．６％和３１．４％。
The catalyst of making Ptopene by Pt-Sn-K/Al2O3 propane catalysis dehydrogcnation is prefered by multiple impregnation. The Pt content of the catalyst is <0. 45% (quality),The catalyst is easy to prepare and has a good repetition. its running conditions in a long period is investigated in the test devices of which Capabilities respectively are 2 ml and 100 ml. In the conditions that feeding flow is at normal Pressure.610℃,C3H8/H2=1:1(mol)and the air velocity of gas volume is 500 h(-1),the regeneration of the catalyst appears once evey 50 hours and the activity of it is not reduced obviously when running time is accumulative iotaly 500h. The avetage values of propene selectivity and collection ratio are respectively> 80 % and 30 %. But when continuously running 70h per bass .the average values of propene selectivity and collection ratio are respectively 88. 6 % and 3 1. 4 %.
出处
《天然气工业》
EI
CAS
CSCD
北大核心
1995年第3期72-73,共2页
Natural Gas Industry
关键词
催化剂
丙烷
脱氢
丙烯
Catalyst, Testing, Ptopene, Dehydrogenatioll, Profane, Olefinic, Catalyst regeneration.
