摘要
研究了丙烷氧化制丙烯酸复合金属氧化物催化剂失活的原因,探讨了失活催化剂的再生方法。结果表明,丙烷氧化制丙烯酸复合金属氧化物催化剂失活的原因主要是由于金属Te的流失造成的。进一步的实验证明,通过对失活的催化剂单独浸渍Mo、V、Te、Nb四种金属后的评价结果发现,失活的催化剂浸渍Te后丙烯酸收率有所提高,由原来的1.4%分别上升到4.2%,仍远远低于新鲜催化剂的活性,而失活的催化剂单独浸渍Mo、V、Nb后,活性没有变化。
The reason of propane oxidized to produce acrylic acid multi-component catalyst losing activity was studied,and the way for the catalyst regeneration was discussed.As the results showed,the main reason for multi-component catalyst using propane oxidization to produce acrylic acid to deactivate was the loss of Te.Further experiment proved that when the deactivated catalyst was impregnated by Mo,V,Te,Nb,respectively,the yield of acrylic acid increased from 1.4% to 4.2%（still far lower than the fresh catalyst） when the catalyst was impregnated by Te.The yield of acrylic acid using the deactivated catalyst impregnated by Mo,V,Nb did not change.
出处
《应用化工》
CAS
CSCD
2012年第1期126-129,共4页
Applied Chemical Industry
关键词
丙烷选择氧化
丙烯酸
催化剂
失活
再生
propane selective oxidation
acrylic acid
catalyst
deactivate
regeneration
作者简介
邴国强(1969-),男,黑龙江林口人,东北石油大学副教授,在读博士研究生,师从王鉴教授,从事催化反应工程研究。电话:13836977997,E-mail:bingguoqiang@126.com
