Gas storage and dispensing systems
First Claim
1. A gas storage and dispensing system for the substantially reversible storage of a gas, said gas storage and dispensing system comprising a polymeric material which sorbs increasing quantities of fluid in increasing ambient pressure and desorbs previously sorbed gas with decreasing in ambient pressure, the polymeric material having molecular microvoids occupiable by a fluid to cause the polymeric material to form a reversible sorption gas storage system.
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Accused Products
Abstract
Systems for storing and dispensing gases. The gas storage systems are two-phase gas/solid or gas/liquid, or three-phase gas/liquid/solid, functioning by reversible sorption. In gas storage systems having a solid phase, use is made of a polymeric material, preferably a hydrogel, having microvoids functioning as interstitial stores for gas. Reversible gas sorption in the microporous polymer is improved by treatment with a swelling promoter. The stored gas may be a propellant, and reversible sorption propellant storage may be used in all types of pressure pack dispenser. Cryogenic techniques facilitate preparation of propellant systems with standardized parameters. The invention enables use of safe and environmentally benign gases as propellants.
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Citations
29 Claims
- 1. A gas storage and dispensing system for the substantially reversible storage of a gas, said gas storage and dispensing system comprising a polymeric material which sorbs increasing quantities of fluid in increasing ambient pressure and desorbs previously sorbed gas with decreasing in ambient pressure, the polymeric material having molecular microvoids occupiable by a fluid to cause the polymeric material to form a reversible sorption gas storage system.
- 11. A gas storage and dispensing system for the substantially reversible storage of gas, said gas storage and dispensing system comprising a liquid solvent for the gas, the gas being substantially soluble in said liquid solvent to cause the liquid solvent to form a two-phase gas/liquid reversible sorption gas storage system which will tend to sorb increasing quantities of gas in increasing ambient gas pressure, and tend to desorb previously sorbed gas with decreases in ambient gas pressure.
Specification