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Title: Membrane separation of ionic liquid solutions

A membrane separation process using a highly fluorinated polymer membrane that selectively permeates water of an aqueous ionic liquid solution to provide dry ionic liquid. Preferably the polymer is a polymer that includes polymerized perfluoro-2,2-dimethyl-1,3-dioxole (PDD). The process is also capable of removing small molecular compounds such as organic solvents that can be present in the solution. This membrane separation process is suitable for drying the aqueous ionic liquid byproduct from precipitating solutions of biomass dissolved in ionic liquid, and is thus instrumental to providing usable lignocellulosic products for energy consumption and other industrial uses in an environmentally benign manner.
Authors:
; ; ;
Publication Date:
OSTI Identifier:
1213526
Report Number(s):
9,120,834
14/527,732
DOE Contract Number:
SC0011293
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Oct 29
Research Org:
CMS Technologies Holdings, Inc., Newport, DE (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS