Membrane separation of olefin and paraffin mixtures

Title: Membrane separation of olefin and paraffin mixtures

Full Record
Similar

A metal exchanged fluorinated ionomer is a copolymer minimally including repeating units of (i) a polymerized derivative of a perfluorinated cyclic or cyclizable monomer and (ii) a strong acid highly fluorinated vinylether compound in which the acid moiety is exchanged with a cation of a Group 11 metal. Metal exchanged fluorinated ionomers are readily soluble and can be formed into thin, selectively gas permeable membranes by solution deposition methods. These membranes are suitable for separating olefins from gas olefin/paraffin mixtures. Good selectivity and transmembrane flux can be obtained without humidifying the membrane feed gas mixture.

Inventors:: Feiring, Andrew Edward; Lazzeri, Jonathan; Majumdar, Sudipto; Shangguan, Ning

Issue Date:: 2018-07-24

OSTI Identifier:: 1464455

Assignee:: Compact Membrane Systems Inc. (Newport, DE) CHO

Patent Number(s):: 10,029,248

Application Number:: 14/334,605

Contract Number:: SC0004672; SC0007510

Resource Relation:: Patent File Date: 2014 Jul 17

Research Org:: Compact Membrane Systems Inc., Newport, DE (United States)

Sponsoring Org:: USDOE

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

Full Text
View Full Text

Similar records in DOepatents and OSTI.GOV collections:

Ionic liquids for separation of olefin-paraffin mixtures

Patent Dai, Sheng ; Luo, Huimin ; Huang, Jing-Fang

The invention is directed to an ionic liquid comprising (i) a cationic portion containing a complex of a silver (I) ion and one or more neutral ligands selected from organoamides, organoamines, olefins, and organonitriles, and (ii) an anionic portion having the chemical formula ##STR00001## wherein m and n are independently 0 or an integer of 1 or above, and p is 0 or 1, provided that when p is 0, the group --N--SO.sub.2--(CF.sub.2).sub.nCF.sub.3 subtended by p is replaced with an oxide atom connected to the shown sulfur atom. The invention is also directed to a method for separating an olefinmore »« less
Full Text Available September 2013
Ionic liquids for separation of olefin-paraffin mixtures

Patent Dai, Sheng ; Luo, Huimin ; Huang, Jing-Fang

The invention is directed to an ionic liquid comprising (i) a cationic portion containing a complex of a silver (I) ion and one or more neutral ligands selected from organoamides, organoamines, olefins, and organonitriles, and (ii) an anionic portion having the chemical formula ##STR00001## wherein m and n are independently 0 or an integer of 1 or above, and p is 0 or 1, provided that when p is 0, the group --N--SO.sub.2--(CF.sub.2).sub.nCF.sub.3 subtended by p is replaced with an oxide atom connected to the shown sulfur atom. The invention is also directed to a method for separating an olefinmore »« less
Full Text Available July 2014
Olefin separation membrane and process

Patent Pinnau, Ingo ; Toy, Lora G. ; Casillas, Carlos

A membrane and process for separating unsaturated hydrocarbons from fluid mixtures. The membrane and process differ from previously known membranes and processes, in that the feed and permeate streams can both be dry, the membrane need not be water or solvent swollen, and the membrane is characterized by a selectivity for an unsaturated hydrocarbon over a saturated hydrocarbon having the same number of carbon atoms of at least about 20, and a pressure-normalized flux of said unsaturated hydrocarbon of at least about 5.times.10.sup.-6 cm.sup.3 (STP)/cm.sup.2 .multidot.s.multidot.cmHg, said flux and selectivity being measured with a gas mixture containing said unsaturated andmore »« less
Full Text Available January 1997
Membrane permeation process for dehydration of organic liquid mixtures using sulfonated ion-exchange polyalkene membranes

Patent Cabasso, Israel ; Korngold, Emmanuel

A membrane permeation process for dehydrating a mixture of organic liquids, such as alcohols or close boiling, heat sensitive mixtures. The process comprises causing a component of the mixture to selectively sorb into one side of sulfonated ion-exchange polyalkene (e.g., polyethylene) membranes and selectively diffuse or flow therethrough, and then desorbing the component into a gas or liquid phase on the other side of the membranes.
Full Text Available January 1988
Membrane separation of hydrocarbons

Patent Chang, Y. Alice ; Kulkarni, Sudhir S. ; Funk, Edward W.

Mixtures of heavy oils and light hydrocarbons may be separated by passing the mixture through a polymeric membrane. The membrane which is utilized to effect the separation comprises a polymer which is capable of maintaining its integrity in the presence of hydrocarbon compounds and which has been modified by being subjected to the action of a sulfonating agent. Sulfonating agents which may be employed will include fuming sulfuric acid, chlorosulfonic acid, sulfur trioxide, etc., the surface or bulk modified polymer will contain a degree of sulfonation ranging from about 15 to about 50%. The separation process is effected at temperaturesmore »« less
Full Text Available January 1986