Abstract

Different ways of increasing the selectivity of catalysts are described for converting oxygenate to liquid hydrocarbons. Analysis of reports suggests that the main factors affecting the selectivity of zeolite-containing catalysts are the structural type and acidic properties of the zeolites. It is shown that the strength and distribution of acid sites depend on the structural type and chemical composition of the zeolite framework, and on the chemical nature of the exchange cations. Different ways of changing the acidic properties of zeolites are discussed, e.g., modifying them with cations of various elements and subjecting them to postsynthesis acidic, alkaline, and steam heat treatment.

中文翻译：

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甲醇和二甲醚合成液态烃的催化剂研究进展

摘要

描述了增加催化剂选择性的不同方式，用于将含氧化合物转化为液态烃。报告分析表明，影响含沸石催化剂选择性的主要因素是沸石的结构类型和酸性。结果表明，酸性位的强度和分布取决于沸石骨架的结构类型和化学组成，以及交换阳离子的化学性质。讨论了改变沸石的酸性的不同方法，例如，用各种元素的阳离子对其进行改性，并使它们进行合成后的酸性，碱性和蒸汽热处理。