L'air Liquide, Soci&#xe9;t&#xe9; Anonyme Pour L'etude Et L'exploitation Des Proc&#xe9;d&#xe9;s Georges Claude

American Air Liquide, Inc.

Henri Chevrel

Raja Swaidan

David J Hasse

Madhava R Kosuri

Robert A Gagliano

Canghai Ma

Taekyu Kang

Remi Tsiava

Dean W Kratzer

James J F McAndrew

Ryan B Adelman

Jiefu Ma

Philippe A Coignet

Benjamin J Jurcik, Jr

James JF Mcandrew

A radiative recuperator preheats oxidant and/or fuel for combustion at one or more burners of a furnace. The recuperator includes a duct, at least portions of which comprise a material having a thermal conductivity of greater than 1 W/(m&#xb7;K), preferably greater than 3 W/(m&#xb7;K), that receives hot flue gas produced by the burner(s). The duct radiatively transfers heat to oxidant or fuel (for preheating) flowing through one or more metallic pipes disposed in between the duct and an insulating wall.

Furnace with integrated heat recovery utilizing radiative recuperator for preheating combustion reactants using heat from flue gas

Metallopolyimide precursor fibers for aging-resistant carbon molecular sieve hollow fiber membranes having enhanced selectivity include transition metal cations complexed with electronegative regions of a polyimide. CMS membranes are made by pyrolyzing the metallopolyimide precursor fibers. The cations are introduced by including, in the spin dope composition used to extrude the fibers, either a salt of the transition metal and an inorganic anion or a transition metal/organic ligand complex.

Metallopolyimide precursor fibers for aging-resistant carbon molecular sieve hollow fiber membranes with enhanced selectivity

Metallopolyimide precursor fibers for aging-resistant carbon molecular sieve hollow fiber membranes having enhanced selectivity include transition metal cations complexed with electronegative regions of a polyimide. CMS membranes are made by pyrolyzing the metallopolyimide precursor fibers. The cations are introduced by including, in the bore fluid used to extrude the fibers, either a salt of the transition metal and an inorganic anion or a transition metal/organic ligand complex.

A carbon molecular sieve (CMS) membrane is made by pyrolyzing a polymeric precursor membrane in a pyrolysis atmosphere containing a sulfur-containing compound.

Manufacturing carbon molecular sieve membranes using a pyrolysis atmosphere comprising sulfur-containing compounds

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Bryn Mawr, PA, United States of America

Henri Chevrel