Accession Number : AD0460841

Title :   CESIUM-WATER HYDROGEN PRODUCTION PROCESS FOR THE AMMONIA PRODUCTION FEASIBILITY STUDY.

Descriptive Note : Final technical rept., 2 Oct 64-29 Jan 65.

Corporate Author : AEROJET-GENERAL NUCLEONICS SAN RAMON CA

Report Date : 29 JAN 1965

Pagination or Media Count : 1

Abstract : A feasibility study of a process for producing hydrogen from the reaction of cesium with water was completed. The process is a closed cycle in which water is the only consumable raw material. Experiments proved that cesium reacts with water to form CsOH quantitatively, and that reaction conditions cannot be adjusted so as to preferentially form Cs2O; verified that O2 reacts with CsOH to form the higher cesium oxides (CsO2 and Cs2O2) and release water; and evidenced a substantial Cs2O decomposition rate at acceptable process temperatures. The ideal hydrogen production thermal efficiency for the process is 66%, where efficiency is defined as the higher heat of combustion of H2 (68.3 kcal/mole) divided by the external thermal energy supplied to the process per gram-mole of H2 produced. Based on thermal dissociation of Cs2O and the diffusional separation of Cs (g) and O2 (g), a practical efficiency of 45% was estimated. If dissociation and separation are accomplished by the high temperature electrolysis of molten Cs2O, the efficiency was calculated to be 31.6%. (Author)

Descriptors :   (*FUELS, AMMONIA), (*HYDROGEN, PRODUCTION), CESIUM, WATER, CHEMICAL REACTIONS, DECOMPOSITION, THERMODYNAMICS, DISSOCIATION, CESIUM COMPOUNDS, MONOXIDES, HYDROXIDES, BIBLIOGRAPHIES, OXIDATION, LIQUEFIED GASES, CHEMICAL ENGINEERING, FEASIBILITY STUDIES, PHASE STUDIES, ELECTROLYSIS.

Distribution Statement : APPROVED FOR PUBLIC RELEASE