American Air Liquide, Inc.

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

L'air Liquide Societe Anonyme Pour L'etude

Et L'exploration Des Procedes Georges Claude

Varagani, Rajani K.

Pavol Pranda

Robert A Gagliano

Taekyu Kang

Tailai Hu

M Usman Ghani

Rong Fan

Florian Gautier

Bernard Labegorre

Frederic Camy-Peyret

Hwanho Kim

Nicolas Perrin

Rajani K Varagani

Susie Levesque

Sylvain Grillon

Ovidiu Marin

William A Von Drasek

Frederick W Giacobbe

Benjamin J Jurcik, Jr

Fabienne Chatel-Pelage

Kenneth A Mulderink

Quan Yuan

Ashkan Iranshahi

Tony M K Thampan

Jr Benjamin J Jurcik

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

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

In one embodiment, a method for generating heat energy includes injecting a stream having a concentration of at least 50% oxygen (Ostream) into a primary gas stream through a mixer, the mixer discharging the Ostream as two or more spaced jets traversing the primary stream, thereby enriching the primary gas stream. The method further includes mixing fuel with the enriched primary gas stream, thereby forming a fuel stream; and combusting the fuel stream, thereby forming a flue gas stream.

Device and method for efficient mixing of two streams

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

Systems and methods for exhaust gas recirculation in which at least a desired effective oxygen concentration is maintained for stable combustion at increased recirculation rates. Oxygen-enriched gas is injected into the recirculated exhaust gas to achieve the desired effective oxygen concentration.

Oxygen-enriched air assisting system for improving the efficiency of cogeneration system

Apparatus and methods for improved combustion of oxygen and a mixture of a non-gaseous fuel, which includes providing: 1) a source of a mixture of non-gaseous fuel and conveying gas; 2) a source of oxygen; 3) a burner operatively associated with a combustion chamber; 4) a fuel duct in fluid communication with the source of mixed non-gaseous fuel and conveying gas; 5) a tubular oxygen lance fluidly communicating with the source of oxygen; and 6) at least two injection elements in fluid communication with the source of oxygen. The fuel duct includes a portion that extends along an axis towards the burner. The lance is disposed along the axis and has a diameter D. The injection elements are configured to inject oxygen into, and mix therewith, a flow of the mixture upstream of, or at, the burner. At least one of the injection elements receives oxygen from the lance. The injection elements are spaced apart by a distance X, which is greater than the length of diameter D.

Method and apparatus for injecting a gas into a two-phase stream

Apparatuses and methods for cogeneration ducting applications in which at least a desired effective flow stream control is maintained for stable combustion. A flow stream is directed through a flow control system to achieve the desired effective uniform flow rate and composition.

Flexible flow control device for cogeneration ducting applications

A filtering system for monitoring fluid emissions from a process includes a plurality of filter assembly sections arranged in a parallel fluid flow manner with respect to each other so as to selectively receive a sample fluid (e.g., a sample gas) entering at an inlet of the system. Each filter assembly section includes a filter unit to filter particulate materials from a fluid flowing through the filter, first and second valves disposed at upstream and downstream locations of the filter unit, and a blowback flow path configured to selectively direct a cleaning fluid through the filter unit in a direction that opposes a direction in which the sample fluid flows through the filter unit. Each filter assembly section can be selectively isolated from other portions of the system so as to prevent the sample fluid from flowing through the filter assembly section while allowing a cleaning fluid to be delivered through the blowback flow path of the filter assembly section.

Filtering particulate materials in continuous emission monitoring systems

A process for burning a sulfur-containing fuel to produce a flue gas. The process includes introducing a sulfur-containing fuel into a combustion chamber, introducing an oxidant stream into the combustion chamber and mixing it with the sulfur-containing fuel to define a combustion zone, and introducing potassium carbonate into the combustion chamber. The sulfur-containing fuel is burned to produce the flue gas and potassium sulfate.

Growing community of inventors

Hockessin, DE, United States of America

Pavol Pranda