The Effect of Tin-Support Interaction on Catalytic Stability over Pt-Sn/xAl-SBA-15 Catalysts for Propane Dehydrogenation

被引:7
|
作者
Vu, Bao Khanh [1 ]
Shin, Eun Woo [1 ]
Ahn, In Young [2 ]
Ha, Jeong-Myeong [2 ]
Suh, Dong Jin [2 ]
Kim, Won-Il [3 ]
Koh, Hyoung-Lim [3 ]
Choi, Young Gyo [3 ]
Lee, Seung-Bum [4 ]
机构
[1] Univ Ulsan, Sch Chem Engn & Bioengn, Ulsan 680749, South Korea
[2] Korea Inst Sci & Technol, Seoul 136791, South Korea
[3] Hyosung Co, Prod R&D Ctr, Anyang 431080, Gyeounggi, South Korea
[4] Dankook Univ, Dept Chem Engn, Gyeonggi 448701, South Korea
关键词
Dehydrogenation; Deactivation; Metal-support interaction; MESOPOROUS MOLECULAR-SIEVE; OXIDATIVE DEHYDROGENATION; ISOBUTANE DEHYDROGENATION; METALLIC PHASE; SBA-15; OXIDE; PLATINUM; SILICA; PT-SN/AL2O3; PERFORMANCE;
D O I
10.1007/s10562-012-0837-x
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
We prepared Pt-Sn/xAl-SBA-15 catalysts with various ratios of Al to Si and investigated them for propane dehydrogenation in order to understand the influence of the interaction between tin and the supports on catalytic stability. The weaker interaction between SnO (x) and the supports leads to easier formation of Pt-Sn alloys. The formation of Pt-Sn alloys increases the stability of catalysts, and the stability of Pt-Sn/xAl-SBA-15 catalysts is inversely proportional to the aluminum content in SBA-15.
引用
收藏
页码:838 / 844
页数:7
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