Methanol conversion on SAPO-34 catalysts prepared by mixed template method

被引：165

作者：

Lee, Yun-Jo ^{[1
]}

Baek, Seung-Chan ^{[1
]}

Jun, Ki-Won ^{[1
]}

机构：

[1] Korea Res Inst Chem Technol, Alternat Chem Fuel Res Ctr, Taejon 305600, South Korea

来源：

APPLIED CATALYSIS A-GENERAL | 2007年 / 329卷

关键词：

MTO; SAPO-34; mixed template; methanol; olefins;

D O I：

10.1016/j.apcata.2007.06.034

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：

Effects of templating on the catalytic performance of SAPO-34 catalyst have been investigated in conversion of methanol to olefins (MTO). SAPO-34 catalysts were synthesized using a single agent or a mixture of morpholine or tetraethyl ammonium hydroxide of (TEAOH) as the template during synthesis of gel with nominal composition as 1Al(2)O(3): 1P(2)O(5):0.6SiO(2):x morpholine:(2 - x)TEAOH:52H(2)O. Compared with using single template, using a mixed template leads to the particle size reduction and the morphology change to spherical type formed by the aggregation of nano-sized crystals. Although all the catalysts showed similar activity and product distribution in the MTO reaction, the catalyst obtained using the mixture of 75% morpholine and 25% TEAOH gave the longest lifetime. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：130 / 136

页数：7

共 21 条

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