The Effects of Catalytic or Promoter Oxides on The Brin Process

Authors

John L. Moriarty Jr.

Document Type

Research

Abstract

Future generation high altitude aircraft will require logistics independent, on-board oxygen generation systems. In an attempt to meet this challenge the eighty year old Brin Process,

BaO + ½O₂ ↔ 750°C ↔ BaO_{2 ,}

was re-examined using a laboratory breadboard model. The influence of eighteen oxides as reaction promoters was studied and the results of forty admixture experiments are evaluated. Observed behavioral trends can be explained based on geometric and electrochemical factors. An equal molar mixture of La₂O₃ and BaO does lower the reaction temperature about 100°C, increases the reaction rate, and improves the oxygen yield. The peroxide decomposition follows both first order and parabolic reaction kinetics. Plausible mechanisms are advanced for the reaction enhancements which are noted with La₂O₃ and MgO admixtures.

Publication Date

1970

Journal Title

Proceedings of the Iowa Academy of Science

Volume

77

Issue

1

First Page

360

Last Page

378

Copyright

©1970 Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

Recommended Citation

Moriarty, John L. Jr. (1970) "The Effects of Catalytic or Promoter Oxides on The Brin Process," Proceedings of the Iowa Academy of Science, 77(1), 360-378.
Available at: https://scholarworks.uni.edu/pias/vol77/iss1/51