Method and system for analyzing a gaseous fluid comprising at least one rare gas by means of a getterizing substrate
AssigneeIfp Energies Nouvelles
InventorVirgile ROUCHON
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Abstract
The invention relates to a method and a system for analyzing rare gases present in a gaseous fluid (1). According to the invention, initially, the rare gases are extracted from the gaseous fluid by trapping by means of a getterizing substrate (5), then superconcentration of the rare gases is produced before injection (8) into the measuring instruments (9). By virtue of the invention, it is possible to increase the partial pressure of the rare gases in the gases to be analyzed before their injection into the analysis instruments.
Claims18
Method for analyzing a gaseous fluid comprising at least one rare gas, characterized in that the following steps are carried out:
- a) the vacuum is created in an accumulation chamber comprising a getterizing substrate, said getterizing substrate being suitable for trapping the components of said gaseous fluid except for said rare gas;
- b) the flow rate of said fluid entering into said accumulation chamber is controlled by means of a flow rate restrictor;
- c) said rare gas is extracted and accumulated from said gaseous fluid by the passage of said gaseous fluid into said getterizing substrate of said accumulation chamber;
- d) said extracted rare gas is compressed such that the pressure and the volume of said compressed rare gas are adapted to the pressure and the volume of said analysis;
- and
- e) said compressed rare gas is analyzed.
System for analyzing at least one gaseous fluid comprising at least one rare gas, characterized in that it comprises:
- a flow rate restrictor for controlling the flow rate of said gaseous fluid,
- means for extracting and accumulating said rare gas comprising an accumulation chamber incorporating a getterizing substrate, said getterizing substrate being suitable for trapping all the components of said gaseous fluid apart from said rare gas,
- vacuum-generating means for said accumulation chamber,
- means for compressing said extracted rare gas, the compression means being suitable for compressing and injecting said rare gas for said analysis, and
- means for analyzing said compressed rare gas.
Dependencies are inferred from the claim text.