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'exploitation Des

Air Liquide France Industrie

Philippe Beaudoin

Benoit Loiselet

Bertrand Leroux

Pascal Del-Gallo

Benoit Grand

Luc Jarry

Rémi Pierre Tsiava

Matthieu Flin

Pascal Duperray

Gabriel Constantin

Robert Kalcevic

Alban Poirier

Son-Ha Giang

Son Ha Giang

Stephane Arnoux

Rémi Tsiava

The invention relates to a direct-fired heating method and to a facility for implementing same, According to said method, a load is heated in a furnace with heat generated by burning fuel with an oxidant; the smoke generated is evacuated from the furnace, the evacuated smoke containing residual heat energy; residual heat energy is recovered from the evacuated smoke and introduced into a synthesis reactor wherein syngas is produced; and at least part of the syngas is burned in the furnace in order to heat the load.

Direct-fired heating method and facility for implementing same

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 relates to a method and device for supersonically injecting oxygen into a furnace, in particular a cupola furnace, in which the total oxygen required for the furnace operation is injected with the aid of two distinct circuits, i.e., the first circuit comprising at least one supersonic oxygen injecting nozzle and a second circuit which comprises additionally oxygen injecting means and is connected to the first circuit by pressure-sensitive means, such as a discharging device (or upstream pressure adjuster), in such a way that a stable pressure is obtained in the first circuit upon the attainment of the maximum flowrate thereof, wherein the first circuit can consists of several supersonic nozzle groups.

Method for supersonically injecting oxygen into a furnace

The invention relates to a method of operating a furnace (,) comprising a flue pipe (,) for discharging the smoke, means (,) of introducing ambient air into the said flue pipe (,) and a smoke extractor (,) arranged in the said flue pipe (,). According to the method, the temperature of the smoke is measured at two points (,), the temperature measured at the second point (,) is subtracted from the one measured at the first point (,), the result of the subtraction is compared with a datum value &Dgr;T, and the ratio of the flow rate of fuel to the flow rate of oxidizing agent introduced into the furnace (,) is decreased when the result of the subtraction is below the datum value &Dgr;T.

Method of operating a furnace and device for implementing the method

Device for protecting the injection tip of a burner and heating device

A device for atomizing a liquid fuel comprising a central liquid fuel feed passage for feeding with liquid fuel an outer atomizing-gas feed passage for feeding with atomizing gas, these being coaxial overall,

Device for atomizing a liquid fuel using an atomizing gas

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Antony, France

Philippe Beaudoin