Experimental evidence from H/D exchange studies for the failure of direct C-C coupling mechanisms in the methanol-to-olefin process catalyzed by HSAPO-34

被引:105
作者
Marcus, DM [1 ]
McLachlan, KA [1 ]
Wildman, MA [1 ]
Ehresmann, JO [1 ]
Kletnieks, PW [1 ]
Haw, JF [1 ]
机构
[1] Univ So Calif, Dept Chem, Los Angeles, CA 90089 USA
关键词
heterogeneous catalysis; isotopic labeling; methanol-to-olefin process; zeolites;
D O I
10.1002/anie.200504372
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
(Chemical Equation Presented) Pool view preferred: In agreement with recent theoretical work, a new line of experimental evidence was obtained in support of the controversial claim that direct mechanisms do not couple methanol to ethylene in the catalyzed methanol-to-olefin process. The results preclude carbene routes and oxonium ylide mechanisms, among others (see picture), in favor of the hydrocarbon pool mechanism. © 2006 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:3133 / 3136
页数:4
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