05-11-2020 дата публикации
Номер: US20200346993A1
Принадлежит:
A catalyst containing LF-type B acid preparing ethylene using direct conversion of syngas is a composite catalyst and formed by compounding component A and component B in a mechanical mixing mode. The active ingredient of the component A is a metal oxide; the component B is a zeolite of MOR topology; and a weight ratio of the active ingredients in the component A to the component B is 0.1-20. The reaction process has an extremely high product yield and selectivity, with the selectivity for light olefin reaching 80-90%, wherein ethylene has high space time yield and can reach selectivity of 75-80%. Meanwhile, the selectivity for a methane side product is extremely low (<15%). 1. A catalyst , comprising a component I and a component II , which are compounded in a mechanical mixing mode; wherein , an active ingredient of the component I is a metal oxide; the component II is a zeolite of MOR topology;{'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', '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, CeO, COAlO, FeAlO, GaO, BiO, InO, InAlMnO, and 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', '(1-a)', 'x', 'a', '(1-a)', 'x', 'a', 'b', 'x', 'a', 'b', '(1-a-b)', 'x, 'sup': (1-a-b)', '2, 'a specific surface area of MnCrO, MnAlO, MnZrO, MnInO, ZnCrO, ZnAlO, ZnGaO, ZnInO, CoaAlO, FeAlO, InAlMnO, and InGaMnOis 5-150 m/g;'}a value range of x is 0.7-3.7, and a value range of a is 0-1; and a value range of a+b is 0-1;the MOR zeolite in the component B comprises LF-type B acid; and the content ...
Подробнее
