Self-regenerating system of removing oxygen and water impurities from hydrogen gas

Patent · Tue Aug 10 04:00:00 EDT 1982

OSTI ID:6670011

Simons, H M

Oxygen and water impurities are cleaned from hydrogen, which is to be stored in tanks containing a hydride-forming metallic alloy, using a novel, self-cleaning filter system. The impurity-containing hydrogen gas is first passed through a catalyst bed comprising a catalyst which is adapted to convert oxygen in the presence of hydrogen to water. The gas then passes through an adsorbent capable of adsorbing water from the gas stream, thereby substantially removing water impurities from the hydrogen gas. The purified hydrogen gas is charged into a storage tank containing a hydride-forming metallic alloy which absorbs the hydrogen by reacting therewith to form hydrogen-loaded metallic hydride. When the storage tank is to be discharged, the hydrogen-loaded metallic hydride in the tank is treated to release hydrogen gas therefrom. The released gas is passed back through the adsorbent, thereby cleaning the adsorbent of water impurities deposited therein when the tank was being charged with hydrogen. The hydrogen gas containing water impurities is then forwarded to a hydrogen utilization unit for further use of the hydrogen.

• Assignee: Billings Energy Corp
• Patent Number(s): US 4343770
• OSTI ID: 6670011
• Country of Publication: United States
• Language: English

Related Subjects

08 HYDROGEN
080100* -- Hydrogen-- Production
080201 -- Hydrogen-- Chemisorption Storage
ADSORBENTS
CATALYST SUPPORTS
CATALYSTS
CONTAINERS
CONTROL EQUIPMENT
ELEMENTS
EQUIPMENT
FILTERS
FLOW REGULATORS
FLUID FLOW
HYDRIDES
HYDROGEN
HYDROGEN COMPOUNDS
HYDROGEN STORAGE
IMPURITIES
NONMETALS
OXYGEN
OXYGEN COMPOUNDS
PURIFICATION
REGENERATION
REMOVAL
STORAGE
TANKS
WATER