Molecular sieves mediated unsaturated hydrcarbon separation and related compositions, materials, methods and systems
申请人:CALIFORNIA INSTITUTE OF TECHNOLOGY
公开号:US10781150B2
公开(公告)日:2020-09-22
Described herein are compositions having an eight-membered monocyclic unsaturated hydrocarbon, methods and system to separate the eight-membered monocyclic unsaturated hydrocarbon at from a hydrocarbon mixture including additional nonlinear unsaturated C8H2m hydrocarbons with 4≤m≤8, by contacting the hydrocarbon mixture with a 10-ring pore molecular sieve having a sieving channel with a 10-ring sieving aperture with a minimum crystallographic free diameter greater than 3 Å and a ratio of the maximum crystallographic free diameter to the minimum crystallographic free diameter between 1 and 2, the molecular sieve having a T1/T2 ratio≥20:1 wherein T1 is an element independently selected from Si and Ge, and T2 is an element independently selected from Al, B and Ga, the 10-ring pore molecular sieve further having a counterion selected from NH4+, Li+, Na+, K+ and Ca++.
本文描述了具有八元单环不饱和烃的组合物,以及将八元单环不饱和烃从包括 4≤m≤8 的额外非线性不饱和 C8H2m 烃的烃混合物中分离出来的方法和系统、将烃混合物与 10 环孔分子筛接触,该分子筛具有一个筛孔通道,其 10 环筛孔的最小自由结晶直径大于 3 Å,且最大自由结晶直径与最小自由结晶直径之比介于 1 和 2 之间,分子筛的 T1/T2 比率≥20:1,其中 T1 是独立选自 Si 和 Ge 的元素,T2 是独立选自 Al、B 和 Ga 的元素,所述 10 环孔分子筛进一步具有选自 NH4+、Li+、Na+、K+ 和 Ca++ 的反离子。