Process for separating linear and branched hydrocarbons using alkylene-bridged polysilsesquioxanes
AssigneeUop LLC
InventorsJames R. Lansbarkis, Timothy A. Brandvold
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Abstract
An adsorptive process to separate the components of a solution of linear and branched hydrocarbons into a linear hydrocarbon portion and a branched hydrocarbon portion where the adsorbent is an alkylene-bridged polysilsesquioxane has been developed. The hydrocarbon components to be separated may be alkanes, alkenes, or alkynes, and the alkylene-bridging group of the adsorbent may contain from about 2 to about 14 carbon atoms. A specific embodiment of the invention is one where the process is operated in the simulated moving bed mode.
Claims9
A process for separating the components of a solution which is (1) a mixture of linear and branched alkanes, or (2) a mixture of linear and branched alkenes, or (3) a mixture of linear and branched alkynes, into a linear hydrocarbon portion and a branched hydrocarbon portion, comprising:
- a. contacting said solution with an alkylene-bridged polysilsesquioxane adsorbent where said alkylene-bridging group contains from about 2 to about 14 carbon atoms, said adsorbent effective to adsorb hydrocarbons with increasing strength in the order of linear hydrocarbons<branched hydrocarbons;
- b. desorbing the adsorbed linear hydrocarbons from said adsorbent using a desorbent and collecting the desorbed linear hydrocarbons;
- and
- c. desorbing the adsorbed branched hydrocarbons from said adsorbent using the desorbent and collecting the desorbed branched hydrocarbons.
Dependencies are inferred from the claim text.