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

L'air Liquide

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

Francis Bryselbout

Michel Moisan

Jean-Christophe Rostaing

Jean-Claude Parent

Patrick Mauvais

The invention relates to a process for the detection of hydrocarbons other than methane in a gas predominantly or essentially comprising oxygen, as well as methane and the said hydrocarbons other than methane, the said process comprising: The invention also relates to a device for implementing this process.

Process and device for the detection of hydrocarbons in a gas

The invention relates to a device for storing and mixing two gases or mixtures of gases under pressure. The device includes: an outer chamber containing the first of the gases and being equipped with an opening; an inner chamber arranged inside the outer chamber containing the second gas, and being equipped with an opening; a two-way valve which includes a body fixed hermetically in the opening of the outer chamber, a first passage having one end connected to the inner chamber and being equipped with a first controllable shut-off device, and a second passage having a first end connected to the outer chamber and being equipped with a second controllable shut-off device; first and second flow rate and pressure adjusting devices, each being connected to one of the passages of the valve; and first and second pipes for connecting the outlet of each adjusting device to a single outlet.

Device for storing and mixing two gases

Provided are a process and apparatus for purifying a gas. In accordance with the process, the gas to be purified flows through a hollow dielectric tube. An electric field is created in the gas to be purified by a traveling electromagnetic wave which travels in the dielectric tube and creates, in the gas, an atmospheric-pressure plasma which is not in local thermodynamic equilibrium, for the purpose of dissociating impurities in the gas to form reactive compounds. The formed reactive compounds are reacted with a corresponding reactive material for eliminating the reactive compounds from the gas to be purified.

Process for purifying a gas and apparatus for the implementation of such a process

Provided is a process for purfying a gas. In the process, the gas to be purified flows through a hollow dielectric tube. An electric field in the gas to be purified is created by a traveling electromagnetic wave which travels in the dielectric tube and is suitable for creating, in the gas, an atmospheric-pressure plasma which is not in local thermodynamic equilibrium, for the purpose of dissociating impurities in the gas in order to form reactive compounds. The formed reactive compounds are reacted with a corresponding reactive material for eliminating the reactive compounds from the gas to be purified.

Process for purifying a gas and apparatus for the implementation of such

A process for supplying a gas to a reactor comprising the steps of:

Process for supplying a gas, especially of diborane and silane

The apparatus for determining the quantity of impurity in a gas by chromatography in gas phase comprises a device for cryogenically trapping impurities, which is provided with a column filled with granular particles of a product capable of adsorbing the impurities, refrigerating means capable of keeping the column at low temperature during passage of the gas loaded with impurities and reheating means for an ulterior desorption;

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Le Mesnil St Denis, France

Francis Bryselbout