Low pressure gas source and dispensing apparatus with enhanced diffusive/extractive means
AssigneeAdvanced Technology Materials, Inc.
InventorW. Karl Olander
Life of this patent
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Abstract
A gas storage and dispensing system in which a gas is sorptively retained on a bed of physical adsorbent material in a containment vessel, and gas is desorbed for selective dispensing thereof from the vessel. The vessel is equipped for gas discharge, with a valve head, mass flow controller, regulator assembly, or the like. A gas-flow resistance-reducing structure such as a gas-permeable porous tube, inert packing, or dispersed inert material, is provided within the vessel, to reduce the resistance to flow of desorbed gas from the bed of adsorbent material during the dispensing operation.
Claims20
A gas storage and dispensing system, comprising:
- a vessel defining an interior volume therewithin for containing a bed of adsorbent material having affinity for a gas to be stored at an interior gas pressure not exceeding about one atmosphere and selectively dispensed from the vessel;
- a gas adsorbed on the bed of adsorbent material at an interior gas pressure not exceeding about one atmosphere;
- means for selectively establishing gas flow communication for discharge of said gas from the vessel;
- and
- means disposed in the interior volume of the vessel for reducing the resistance to flow of gas from the adsorbent material bed during establishment of said gas flow communication for discharge of gas from the vessel.
A gas storage and dispensing system, comprising:
- a vertically upstanding cylindrical vessel defining an interior volume therewithin containing a bed of adsorbent material having affinity for a gas to be stored at an interior gas pressure not exceeding about one atmosphere and selectively dispensed from the vessel;
- a gas adsorbed on the bed of adsorbent material at an interior gas pressure not exceeding about one atmosphere;
- means for selectively establishing gas flow communication for top-end discharge of said gas from the vessel, including a discharge port at a top end of the vessel and a gas flow controller coupled to the gas discharge port;
- and
- a porous tube permeable to gas flow, coupled to the gas discharge port and extending downwardly in the interior volume of the vessel, for reducing the resistance to flow of gas from the adsorbent material bed during establishment of said gas flow communication for discharge of gas from the vessel.
Dependencies are inferred from the claim text.