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.

Air Liquide Advanced Technologies U.S. LLC

L'air Liquide, Societe Anonyme a Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude

Agc Glass Europe

L'air Liquide, Société Anonyme Á Directorie Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procédés Georges Claude

Benoit Grand

Bertrand Leroux

Rémi Pierre Tsiava

Remi Tsiava

Magnus Mortberg

Patrick Recourt

Xavier Paubel

Vivek Gautam

Pascal Duperray

Mohand Amirat

Rajeev S Prabhakar

Taekyu Kang

Richard Soula

Nicolas Docquier

Gabriel Constantin

Denis Cieutat

Robert Kalcevic

Jacques Mulon

Manuel Binoist

Remi Pierre Tsiava

Luc Jarry

Olivier Douxchamps

Johan Behen

Jacky Laurent

Philippe Beaudoin

Paul Berhaut

Patrick Jean-Marie Recourt

Alban Poirier

Christel Champinot

Jean-Baptiste Senechal

Rémi Tsiava

Loic Sylvestre

Son Ha Giang

Fabrice Wagemans

Sarah Juma

Chloe Caumont-Prim

Process for combusting a fuel with an oxidant and burner for the implementation thereof, process wherein at least one stream of the fuel is injected through at least one first perforation, a main flow of oxidant is injected below or above the one or more streams of the fuel through at least one second perforation, an auxiliary flow of the oxidant is introduced into contact with the at least one fuel stream so as to generate an initial flame by an initial partial combustion of the fuel with the auxiliary flow of the oxidant, this initial partial combustion being completed downstream of the initial flame by means of the at least one main stream of the oxidant, the flow rate of the main flow of the oxidant or the ratio between the flow rate of the main flow of the oxidant and the flow rate of the auxiliary flow of the oxidant being adjusted depending on the emission intensity of the initial flame.

Method and device for automatically adapting a flame to variable operating conditions

Heat exchanger presenting a first gas flow path containing a heat-regenerative packing and a separate second gas flow path containing a heat-conductive packing and use of same for heating a gas to be heated by means of heat recovered from a hot gas in a two-phase alternating heat-recovery process.

Heat exchanger and heat exchange method using same

Method and burner for combusting a main fuel with a main oxidizer, whereby flows of the main fuel and the main oxidizer are injected via an injector end, comprising at least one metallic injector, said injector end being positioned in the upstream section of a main passage of a refractory block and whereby multiple jets are injected into the downstream section of the main passage to increase mixing and turbulence of the flows of the main fuel and the main oxidizer.

Method and combusting fuel and burner therefor

The present invention relates to the supplying power to burners for oxy-fuel combustion glass melting furnaces, including a fuel injecting means and a hot oxygen power supplying means, the dispensing of oxygen being carried out so as to develop a staged combustion, a fraction of the oxygen being concurrently injected into the fuel, said oxygen being supplied essentially without heating prior to the supplying thereof into the fuel injecting means.

Power supply for hot oxygen burner

Variable momentum burner assembly for separately injecting fuel gas and oxidant in a combustion zone, comprising at least two fuel gas canals, at least one oxidant canal and a fuel gas distributor, whereby the at least two fuel gas canals comprise an inner fuel-conducting passage forming an inner fuel gas outlet and an outer fuel-conducting passage forming an outer fuel gas outlet, said inner and said outer fuel-conducting passages being coaxially arranged; and whereby said fuel gas distributor comprises a first fuel gas chamber in fluid connexion with the inner fuel-conducting passage of the at least two fuel gas canals and a second fuel gas chamber in fluid connexion with the outer fuel-conducting passage of the at least two fuel gas canals.

Burner assembly and method of combustion

A burner has a fuel/oxidant nozzles and a pair of dynamical lances spaced on either side thereof that inject a jet of fuel and primary oxidant along a fuel injection axis, and jets of secondary oxidant, respectively. Jets of actuating fluid impinge against the jets of secondary oxidant to fluidically angle the jets of secondary oxidant away from the fuel injection axis. The action of the angling away together with staging of the oxidant between primary and secondary oxidant injections allows achievement of distributed combustion conditions.

Distributed combustion process and burner

Flameless combustion burner

During a heating phase, injection of a jet of fuel and oxidant (fuel annularly enshrouding oxidant or oxidant annularly enshrouding fuel) from a fuel-oxidant nozzle is combusted in a combustion space. During a transition from the heating phase to a distributed combustion phase, an amount of a secondary portion of either the fuel or oxidant is injected as a jet into the combustion space while the primary portion of that same reactant from the fuel-oxidant nozzle is decreased. At some point during the transition phase, a jet of actuating fluid is injected at an angle towards the jet of reactants from the fuel-oxidant nozzle and/or towards the jet of the secondary portion of reactant. The jet of primary portions of reactants and/or secondary portion of reactant is caused to be bent/deviated towards the other of the two jets. The staging of the secondary portion of reactant is increased until a desired degrees of staging and commencement of a distributed combustion phase are achieved.

The invention relates to a method for the combustion of a fuel using an oxygenated gas, in which a jet of fuel and at least two jets of oxygen-rich oxygenated gas are injected. According to the invention, the first jet of oxygen-rich oxygenated gas, known as the primary jet, is injected such as to be in contact with the jet of fuel and to produce a first incomplete combustion, the gases produced by said first combustion comprising at least one part of the fuel, and the second jet of oxygen-rich oxygenated gas is injected at a distance I1 from the jet of fuel such as to combust with a first part of the fuel present in the gases produced by the first combustion. Moreover, a low-oxygen oxygenated gas is injected at a distance I2 from the jet of fuel such as to combust with a second part of the fuel present in the gases produced by the first combustion, I2 being greater than I1. The invention also relates to the burner used to carry out the method and to the use of said method for the heating of a glass filler or for a reheating furnace.

Staged combustion method using a low-oxygen gas

The invention relates to a method for melting vitrifiable materials in a low-capacity oven, wherein at least part of the melting energy is supplied by two oxy-burners projecting into the melting chamber through the upstream wall and arranged on opposite sides of a vertical plane in which a longitudinal axis of the melting chamber is situated, in such a way as to create two flames, the respective injection axes thereof crossing at a distance from the upstream wall, between &#x2153; and &#xbe; of the length L of the melting chamber.

Oven and oxy-combustible method for melting vitrifiable materials

The invention concerns a combustion method for industrial furnace comprising an arrangement of two substantially parallel and symmetrical burner assemblies (G, D). Each burner assembly comprises a fuel injector (&#x3c;SUB&#x3e;G&#x3c;/SUB&#x3e;,&#x3c;SUB&#x3e;D&#x3c;/SUB&#x3e;) and three oxidant injectors (&#x3c;SUB&#x3e;G&#x3c;/SUB&#x3e;,&#x3c;SUB&#x3e;G&#x3c;/SUB&#x3e;,&#x3c;SUB&#x3e;G&#x3c;/SUB&#x3e;,&#x3c;SUB&#x3e;D&#x3c;/SUB&#x3e;,&#x3c;SUB&#x3e;D&#x3c;/SUB&#x3e;,&#x3c;SUB&#x3e;D&#x3c;/SUB&#x3e;) arranged at increasing distances from the fuel injector. An oxidant supply system cyclically distributes a specific flow of oxidant among some at least of the second and third injectors of the burner assemblies (&#x3c;SUB&#x3e;G&#x3c;/SUB&#x3e;,&#x3c;SUB&#x3e;G&#x3c;/SUB&#x3e;,&#x3c;SUB&#x3e;D&#x3c;/SUB&#x3e;,&#x3c;SUB&#x3e;D&#x3c;/SUB&#x3e;). The amount of nitrogen monoxide produced upon combustion is thus reduced, while ensuring a good distribution of the heating power in the furnace.

Combustion method with cyclic supply of oxidant

A method for partially oxidizing, in a Claus furnace, at least one gas containing hydrogen sulfide and ammonia with at least one gas rich in oxygen. The residual ammonia content at the outlet of the furnace is measured with a laser diode. Based upon this measurement, the flow rates of the ammonia containing gases and the oxygen rich gases may be modified to obtain the desired residual ammonia content.

Method for partially oxidizing a gas stream comprising hydrogen sulphide and ammonia

A gas burner for use with a Claus furnace made up of at least five concentric tubes and the spaces formed between them. The diameters of the tubes increase radially outward so that the first tube has a smaller diameter than the fifth tube. At the end of the burner closest to the furnace, the tube ends of the third, fourth, and fifth tubes lie in the same plane. The first and the second tubes are fastened together and capable of movement along the central longitudinal axis of the burner, but their ends closest the furnace are not capable of moving past the plane formed by the third, fourth, and fifth tubes. An injector is located between the first and second tubes at the end closest the furnace. The injector is oriented towards the periphery of the burner.

Burner and method for partly oxidising a gas stream comprising hydrogen sulphide and ammonia

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Versailles, France

Benoit Grand