工业催化
工業催化
공업최화
INDUSTRIAL CATALYSIS
2015年
8期
634-636
,共3页
催化剂工程%助催化剂%丙烷脱氢%Pt/ Al2 O3催化剂%丙烯
催化劑工程%助催化劑%丙烷脫氫%Pt/ Al2 O3催化劑%丙烯
최화제공정%조최화제%병완탈경%Pt/ Al2 O3최화제%병희
catalyst engineering%promoter%propane dehydrogenation%Pt/ Al2 O3 catalyst%propylene
利用廉价的丙烷脱氢制丙烯是解决丙烯供应紧张问题的途径之一，研究优异性能的丙烷脱氢催化剂具有重要意义。采用分步浸渍法制备不同类型的丙烷脱氢催化剂 Pt/ Al2 O3，在固定床反应器中考察助催化剂 Sn、Ga、In 和 K 对催化剂性能的影响。结果表明，Pt - Sn / Al2 O3催化剂性能略优于 Pt - Ga / Al2 O3和 Pt - In / Al2 O3，并且比较稳定。在 Pt - Sn / Al2 O3催化剂中加入适量 K，可有效改善催化剂性能，但高温条件下积炭严重，有待深入研究和改进。
利用廉價的丙烷脫氫製丙烯是解決丙烯供應緊張問題的途徑之一，研究優異性能的丙烷脫氫催化劑具有重要意義。採用分步浸漬法製備不同類型的丙烷脫氫催化劑 Pt/ Al2 O3，在固定床反應器中攷察助催化劑 Sn、Ga、In 和 K 對催化劑性能的影響。結果錶明，Pt - Sn / Al2 O3催化劑性能略優于 Pt - Ga / Al2 O3和 Pt - In / Al2 O3，併且比較穩定。在 Pt - Sn / Al2 O3催化劑中加入適量 K，可有效改善催化劑性能，但高溫條件下積炭嚴重，有待深入研究和改進。
이용렴개적병완탈경제병희시해결병희공응긴장문제적도경지일，연구우이성능적병완탈경최화제구유중요의의。채용분보침지법제비불동류형적병완탈경최화제 Pt/ Al2 O3，재고정상반응기중고찰조최화제 Sn、Ga、In 화 K 대최화제성능적영향。결과표명，Pt - Sn / Al2 O3최화제성능략우우 Pt - Ga / Al2 O3화 Pt - In / Al2 O3，병차비교은정。재 Pt - Sn / Al2 O3최화제중가입괄량 K，가유효개선최화제성능，단고온조건하적탄엄중，유대심입연구화개진。
Propane dehydrogenation is one of the ways to solve the sUpply problem of propylene. There-fore,it is of great significance to stUdy the catalysts with high performance for propane dehydrogenation. In this paper,different Pt/ Al2 O3 catalysts were prepared by step-impregnation method. The effects of Sn,Ga, In and K promoters on the performance of Pt/ Al2 O3 catalysts were investigated in a fixed-bed reactor. The resUlts showed that the performance of Pt-Sn / Al2 O3 catalyst was better and more stable than those of Pt-Ga / Al2 O3 and Pt- In / Al2 O3 catalysts. In addition,the performance of Pt-Sn / Al2 O3 catalyst coUld be effectively improved by adding an appropriate amoUnt of K. However,the carbon deposition on Pt- Sn- K/Al2 O3 catalyst was more serioUs at high temperatUre,which needed to be fUrther stUdied and improved.
