The International Nickel Company, Inc.

Ergenics Corporation

Air Products and Chemicals, Inc.

Other

Mpd Technology Corporation

Gary D Sandrock

Ernest L Huston

Pierre P Turillon

Paul D Goodell

Edwin Snape

Peter S Rudman

Gordon C Cheng

Winfred L Woodard, Iii

Stephan L Keresztes

John J Sheridan, Iii

James Liu

Winfred L Woodward, Iii

P Mark Goldben

Fred G Eisenberg

Dale Thompson Peters

Raymond P Stickles

Metal hydrides for absorbing hydrogen which are capable of undergoing repeated charge/discharge cycles of absorbing and desorbing hydrogen at high temperatures and cycles through a high temperature followed by a low temperature. These alloys are intended for use in devices such as heat pumps, heat exchangers, energy storage devices, thermal actuators, temperature sensors and electrochemical cells. The alloys generally comprise the chemical formula

Disproportionation resistant metal hydride alloys for use at high

A method of manufacturing high-zirconium getters that involves hydrogen pulverization of an entire alloy ingot or ingot pieces. The method offers distinct advantages over techniques that use mechanical means of powder production. The method is useful especially in the manufacture of tough porous getters, of high Zr-content Zr-V alloys that have minor additions of elements such as Fe, Ni, Mn and/or Al.

Tough and porus getters manufactured by means of hydrogen pulverization

A method of manufacturing high-zirconium getters that involves hydrogen pulverization of an entire alloy ingot or ingot pieces. The method offers distinct advantages over techniques that use mechanical means of powder production. The method is useful expecially in the manufacture of tough porous getters, of high Zr-content Zr-V alloys that have minor additions of elements such as Fe, Ni, Mn and/or Al.

Method of manufacturing tough and porous getters by means of hydrogen

The method for extracting hydrogen from a gas stream containing hydrogen with or without other gases by a sorption-desorption process using as the hydrogen sorber a pellet bed of a porous, metallurgically bonded, heat-ballasted hydridable mixture comprising a major proportion of a heat-ballast material and a minor proportion of a hydridable metallic material.

Methods of extracting hydrogen from a gas

Hydrogen gettering alloys which contain nickel, mischmetal, and zirconium, and may optionally contain one or more of cobalt, copper, iron, aluminum, tin, titanium and silicon, overcome many of the deficiencies of the existing getter technology. These alloys may be readily activated for use and regenerated for reuse. They are conveniently prepared using available furnace technology.

Low temperature reusable hydrogen getter

A porous, metallurgically bonded, heat-ballasted hydridable mixture in pellet form wherein the solid ingredients comprise about 40 vol. % or less of a hydridable metal or alloy and about 60 vol. % or more of a ballast metal powder from the group consisting of nickel, copper, iron and aluminum.

Metal bound and ballasted hydridable pellets

A system for hydrogen storage including a hydridable material associated with an amount of inert material of high heat capacity sufficient in amount to prevent, during hydriding, the temperature of the combined hydridable material-inert material from rising beyond that temperature at which the hydride of the hydridable material exhibits a hydrogen pressure equal to the partial pressure of hydrogen fed to the system. The system is insulated to inhibit heat transfer into or out of the system.

Reaction heat storage method for hydride tanks

A process for manufacturing intermetallic compounds of the RB.sub.5 type where R is a mixture of two or more rare earth metals and B is nickel wherein the composition is determined, with respect to the desired desorption plateau pressure at 25.degree. C. in atmospheres absolute by means of the relationship

Process for manufacturing rare earth intermetallic hydridable compounds

This invention relates to an improved adiabatic process for separating hydrogen from mixed gas streams using hydridable materials as the absorbing medium. The improvement comprises utilizing a composite comprising a thermal ballast in admixture with the hydride material to absorb the heat of reaction and to aid in desorption. By virtue of the intimate contact of the ballast with the hydridable material rapid cycle times plus good bed utilization are achieved.

Recovering hydrogen from gas stream using metal hydride

Discloses a hydridable compound of the general formula MNi.sub.x-y Fe.sub.y, where M is mischmetal, x is a number between 4.5 and 5.5 and y is a number between about 0.1 and 1.3.

Mischmetal-nickel-iron hydrogen storage compound

A calcium-nickel compound, CaNi.sub.5, is used to store hydrogen at sub-atmospheric pressures. Charging of the calcium-nickel compound with hydrogen can be accomplished at sub-atmospheric as well as at high pressures. Stored hydrogen can be released from a valved vessel containing calcium-nickel by application of a vacuum or by heating.

Nickel-calcium alloy for hydrogen storage

A nickel-mischmetal-calcium compound is used to store gaseous hydrogen at pressures up to about 15 atmospheres at ambient temperatures. The Ni.sub.5 M.sub.1-y Ca.sub.y compounds have values of y ranging from about 0.2 to about 0.9. Alloys conforming to this formula contain from about 4% to about 27% mischmetal, from about 2% to about 11% calcium, up to about 15% copper, and the balance essentially nickel.

Nickel-mischmetal-calcium alloys for hydrogen storage

A hydride forming alloy comprising of mischmetal, nickel and aluminum, having a composition responding approximately to the formula MM Ni.sub.(y-[x+z]) Al.sub.x Fe.sub.z where x is a number from 0.1 to 1.5, y is a number between 4.5 and 5.5, z is a number between 0 and 0.3 and 'x+z' has a maximum of 1.5.

Mischmetal-nickel-aluminum alloys

Discloses a hydrogen storage module comprising a fluted tube section closed at each end with a gas permeable porous plug and containing a metal adapted to form a hydride or the hydride of such metal.

Hydrogen storage module

Discloses the use of spatially extended particles of a solid characterized by a low apparent density distributed within a mass of metal hydride material used in a pressure vessel for storing hydrogen.

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Ringwood, NJ, United States of America

Gary D Sandrock