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.

L'air Liquide Societe Anonyme Pour L'etude

Et L'exploration Des Procedes Georges Claude

Robert A Gagliano

Pavol Pranda

Taekyu Kang

Raja Swaidan

David J Hasse

Madhava R Kosuri

Henri Chevrel

Canghai Ma

Rong Fan

Hwanho Kim

Dean W Kratzer

Benjamin J Jurcik, Jr

Yudong Chen

Trapti Chaubey

Tao Li

Ashkan Iranshahi

Tony M K Thampan

Jr Benjamin J Jurcik

A CMS membrane module includes plurality of hollow fiber CMS membranes that are enclosed within an open cylindrical shell whose ends are embedded in tubesheets. The shell is concentrically disposed within an open cylindrical pressure vessel whose open ends are covered by and secured by end caps. The shell includes a feed fluid inlet formed therein between the tubesheets and a retentate outlet in between one of the tubesheets and an adjacent end cap. A retentate seal is formed between the shell and the pressure vessel at a position between the tubesheets. A permeate seal is formed between the pressure vessel and the tubesheet that is adjacent a permeate port of the module. A structure made up of the CMS membranes, shell, tubesheets, and seals is slidable within the pressure vessel and not fixed in place in relation to the pressure vessel and end caps.

Gas separation membrane module with hollow fiber carbon molecular sieve membranes

Disclosed are methods for operating a glass furnace, the method comprises the steps of feeding a non-pre-reformed hydrocarbon fuel gas stream to a pre-reformer forming a pre-reformed hydrocarbon fuel gas stream, feeding the pre-reformed hydrocarbon fuel gas stream to burners of the furnace, combusting oxidant and the pre-reformed hydrocarbon fuel gas with the burners to produce flue gas, heating air through heat exchange with the flue gas at a recuperator, and transferring heat from heated air to pre-reformer tubes of the pre-reformer. A glass furnace system is also disclosed.

Enhanced waste heat recovery using a pre-reformer combined with oxygen and fuel pre-heating for combustion

An improved hydrogen generation system and method for using the same are provided. The system includes an HDS unit configured to remove sulfur, a first and second pre-reformers configured to pre-reform a process gas and fuel gas, respectively, a first and second heat exchangers configured to dry and heat the pre-reformed fuel gas, respectively, and a reformer configured to produce a syngas and flue gas. The method includes using a process stream selected from the group consisting of air, PSA off-gas, hydrocarbon gas, and combinations thereof to dry the fuel gas and using a process stream selected from the group consisting of the flue gas, the syngas, and combinations thereof to heat the dry fuel gas. The second pre-reformer is a low-pressure pre-reformer, so that the heat contents of the fuel gas is increased through converting heavy hydrocarbons in the fuel gas to CO and Hby the second pre-reformer.

Maximizing steam methane reformer combustion efficiency by pre-heating pre-reformed fuel 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.

An apparatus for decreasing steam methane reformer (SMR) tube temperature is provided. The apparatus can include an SMR furnace, a monitoring system in communication with the SMR furnace and a water source in fluid communication with the SMR furnace. The SMR furnace includes a plurality of SMR tubes disposed within the SMR furnace. The monitoring system is configured to monitor the temperature of at least a plurality of SMR tubes and compare the temperature against a first predetermined value, and the water source is configured to introduce water to an SMR tube that has a temperature above the first predetermined value, such that the temperature of the SMR tube is reduced.

Apparatus for decreasing SMR tube temperature

A method for decreasing steam methane reformer (SMR) tube temperature is provided. The method can include the steps of introducing a hydrocarbon containing feed to be reformed to a plurality of SMR tubes in the presence of steam under conditions effective to produce hydrogen and carbon monoxide, monitoring the temperature of at least a plurality of the tubes within the SMR during operation, comparing the monitored temperature against a first predetermined value, and introducing an effective amount of water to a reformer tube when the monitored temperature of the reformer tube is at or above the predetermined value, such that the temperature of the reformer tube is reduced.

Method for decreasing SMR tube temperature

An improved reactor tube which includes a reactor tube, wherein the reactor tube is at least partially filled with at least one porous media catalyst, and at least one shape memory alloy element located within the reactor tube, wherein; at a first temperature, the shape memory alloy element has a first configuration, at a second temperature, the shape memory alloy element has a second configuration is provided.

Heat transfer in SMR tubes

The present invention provides a process for decreasing or eliminating unwanted hydrocarbon and oxygenate products caused by FTS reactions in a syngas treatment unit by utilizing heat exchangers and optionally associated pipes that are substantially fabricated of a material selected from the group consisting of chromium containing alloys and carbon steel for heating up gas streams having a carbon monoxide partial pressure of less than or equal to one bar and obtained from a front end purification unit/cold box unit.

Process for decreasing or eliminating unwanted hydrocarbon and oxygenate products caused by Fisher Tropsch Synthesis reactions in a syngas treatment unit

Growing community of inventors

Cochranville, PA, United States of America

Robert A Gagliano