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
Life of this patent
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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.
Claims24
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 and separated from other components of said gaseous fluid by the passage of said gaseous fluid into said getterizing substrate of said accumulation chamber;
- d) said extracted rare gas, separated from the other components of the gaseous fluid, 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, separated from the other components of the gaseous fluid, 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, separated from the other components of the gaseous fluid, the compression means being suitable for compressing and injecting said rare gas, separated from the other components of the gaseous fluid, for said analysis, and
- means for analyzing said compressed rare gas, separated from the other components of the gaseous fluid.
A method for analysis of a gaseous fluid comprising at least one rare gas, the at least one rare gas being a sample of gas taken from a geological reservoir, comprising:
- a) creating a vacuum in an accumulation chamber comprising a getterizing substrate, the getterizing substrate being configured to trapping components of the gaseous fluid except for rare gas;
- b) controlling a flow rate of the gaseous fluid comprising the at least one rare gas entering into the accumulation chamber by a flow rate restrictor;
- c) extracting and accumulating the at least one rare gas from the gaseous fluid comprising the at least one rare gas by the passage of the gaseous fluid comprising the at least one rare gas into the getterizing substrate of the accumulation chamber;
- d) compressing the at least one rare gas that has been extracted and accumulated in the accumulation chamber from the gaseous fluid and that has been separated from the other components of the gaseous fluid such that a pressure and volume of the at least one rare gas are adapted to a pressure and volume of the analysis;
- and
- e) analyzing the at least one rare gas, separated from the other components of the gaseous fluid, at the pressure and volume to which the at least one rare gas has been compressed.
A system for analysis of at least one gaseous fluid comprising at least one rare gas, comprising:
- an accumulation chamber incorporating a getterizing substrate, the getterizing substrate being configured to trap all components of the at least one gaseous fluid comprising the at least one rare gas apart from rare gas to separate the at least one rare gas from other components of the at least one gaseous fluid,
- a flow rate restrictor for controlling a flow rate of the at least one gaseous fluid comprising the at least one rare gas into the accumulation chamber,
- a first pump for creating a vacuum in the accumulation chamber,
- a second pump for compressing the at least one rare gas that has been extracted and accumulated in the accumulation chamber from the gaseous fluid and that has been separated from the other components of the at least one gaseous fluid such that a pressure and volume of the at least one rare gas are adapted to a pressure and volume of the analysis, and
- at least one analyzer for analyzing the at least one rare gas that has been separated from the other components of the at least one gaseous fluid at the pressure and volume to which the at least one rare gas has been compressed by the pump for compressing the at least one rare.
Dependencies are inferred from the claim text.