Loading patent…
AssigneeL'Air Liquide, Societe Anonyme a Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procedes Georges Claude
InventorsChristian Monereau, Jean-Marc Belot
Estimating the term…
The gas treatment installation operating on a treatment cycle, in which part of the cycle is performed at a pressure below atmospheric pressure, particularly a PSA, TSA or VSA installation, includes one or more gas treatment vessels containing adsorbent. Each vessel has at least one orifice, at least one gas pipe communicating with the orifice, at least one valve arranged on the gas pipe and controlling the flow of the gas flowing through the pipe. The valve comprises a shaft for operating the valve and sealing elements. A device for maintaining a protective gaseous atmosphere is arranged around the sealing elements and the operating shaft to create and to maintain a protective gaseous atmosphere around these items and thus prevent the ingress, into the treatment vessel, of contaminants harmful to the adsorbent, particularly the ingress of moisture liable to deactivate the molecular sieve, that is to say the adsorbent.
A method for avoiding and/or minimizing the contamination of an adsorbent by at least one impurity present in the ambient air contained in at least one gas treatment vessel of a gas treatment installation operating using a treatment cycle, at least part of which cycle is performed at a pressure below atmospheric pressure, the installation comprising:
An installation for treating gas working on a treatment cycle, in which at least part of the cycle is performed at a pressure below atmospheric pressure, comprising:
Dependencies are inferred from the claim text.