Process for purifying a gas and apparatus for the implementation of such a process
AssigneeL'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
InventorsJean-Christophe Rostaing, Jean-Claude Parent, Francis Bryselbout, Michel Moisan
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Abstract
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.
Claims11
A process for purifying a gas, comprising the steps of:
- flowing the gas to be purified through a hollow dielectric tube;
- creating an electric field 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;
- and
- reacting the formed reactive compounds with a corresponding reactive material for eliminating said reactive compounds from the gas to be purified,
- wherein the gas to be purified is the product of a distillation process.
A process for purifying a gas, comprising the steps of:
- flowing the gas to be purified through a hollow dielectric tube;
- creating an electric field 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;
- and
- reacting the formed reactive compounds with a corresponding reactive material for eliminating said reactive compounds from the gas to be purified, wherein the gas to be purified is a rare gas supplied from a bottle in which the gas is stored under pressure.
Dependencies are inferred from the claim text.