29-04-2021 дата публикации
Номер: US20210121859A1
Принадлежит:
A catalyst for preparing light olefin using direct conversion of syngas is a composite catalyst and formed by compounding component I and component II in a mechanical mixing mode. The active ingredient of component I is a metal oxide; and the component II is one or more than one of zeolite of CHA and AEI structures or metal modified CHA and/or AEI zeolite. A weight ratio of the active ingredients in the component Ito the component II is 0.1-20. The reaction process has high product yield and selectivity, wherein the sum of the selectivity of the propylene and butylene reaches 40-75%; and the sum of the selectivity of light olefin comprising ethylene, propylene and butylene can reach 50-90%. Meanwhile, the selectivity of a methane side product is less than 15%. 1. A catalyst , comprising a component I and a component II , which are compounded in a mechanical mixing mode; an active ingredient of the component I being a metal oxide; the component II being a zeolite of CHA or AEI topology; wherein ,{'sub': x', 'a', '(1-a)', 'x', 'a', '(1-a)', 'x', 'a', '(1-a)', 'x', 'a', '(1-a)', 'x', 'x', 'a', '(1-a)', 'x', 'a', '(1-a)', 'x', 'a', '(1-a)', 'x', 'a', '(1-a)', 'x', 'x', 'a', '(1-a)', 'x', 'a', '(1-a)', 'x', 'x', 'x', 'x', 'a', 'b', '(1-a-b)', 'x', 'a', 'b', '(1-a-b)', 'x, 'the metal oxide is at least one of MnO, MnCrO, MnAlO, MnZrO, MnInO, ZnO, ZnCrO, ZnAlO, ZnGaO, ZnInO, CeO, CoAlO, FeAlO, GaO, BiO, InO, InAlMnOand InGaMnO;'}{'sub': x', 'x', 'x', 'x', 'x', 'x, 'sup': '2', 'a specific surface area of MnO, ZnO, CeO, GaO, BiOand InOis 1-100 m/g;'}{'sub': a', '(1-a)', 'x', 'a', '(1-a)', 'x', 'a', '(1-a)', 'x', 'a', '(1-a)', 'x', 'a', '(1-a)', 'x', 'a', '(1-a)', 'x', 'a', '(1-a)', 'x', 'a', '(1-a)', 'x', 'a', '(1-a)', 'x', 'a', '(1-a)', 'x', 'a', 'b', '(1-a-b)', 'x', 'a', 'b', '(1-a-b)', 'x, 'sup': '2', 'a specific surface area of MnCrO, MnAlO, MnZrO, MnInO, ZnCrO, ZnAlO, ZnGaO, ZnInO, CoAlO, FeAlO, InAlMnO, and InGaMnOis 5-150 m/g;'}a value range of x is 0.7-3.7, and a ...
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