Investigation of the para-ortho shift of hydrogen /
R.G. Clark [and three others].

Description

Main Author

Clark, R. G.

Related Names

Schmauch, G. E., author.
Jambhekar, A., author.
Kucirka, J. F., author.
United States. Air Force.
Air Products and Chemicals, inc.

Language(s)

English

Published

Wright-Patterson Air Force Base, Ohio : Air Force Aero-Propulsion Laboratory, Research and Technology Division, Air Force Systems Command, United States Air Force, 1963.

Subjects

Low temperature research.
Liquid propellants.
Liquid propellant rocket engines.
Liquefied gases.
Heat > Heat / Transmission.
Catalysts.
Liquid propellant rocket engines.
Liquid propellants.
Liquefied gases.
Low temperature research.
Heat > Heat / Transmission.
Catalysts.

Summary

Investigations of the low-temperature, heterogeneous catalysis of the para-ortho shift of hydrogen for the recovery of the endothermic heat of conversion as low-temperature refrigeration are reported. The research program included: studies of the effects of catalyst activation temperature, particle size, and chamber diameter on conversion activity; adsorption studies; the determination of separation factors of advanced catalysts; and preliminary work to determine the magnetic properties of advanced catalysts. An extensive catalyst development program resulted in improved catalyst systems for the conversion. The most advanced catalyst shows an activity 10.5 times more effective, on a weight basis, than hydrous ferric oxide gel which is the best commercial catalyst available for the conversion.

Note

Research supported by the United States Air Force, and performed by Air Products and Chemicals, Inc., Allentown, Pennsylvania.
AD0431013 (from http://www.dtic.mil).
"October, 1963."

Physical Description

v, 45 leaves : illustrations, tables ; 28 cm.

Locate a Print Version

Find in a library

Viewability