| 摘要 |
FIELD: storage of gases in chemical, petrochemical ,and oil-refining industries. ^ SUBSTANCE: proposed oxygen storage method includes partial reduction of lambda-Al2O3 on specific surface area of 200 - 400 m3/g doped with up to 0.5 mass percent of Sn during synthesis and subjected to oxidizing treatment at 500 °C in oxygen stream. Reduction is made by activated molecular, hydrogen, or hydrogen-containing hydrocarbon gas at gas temperature of 100 - 750 °C, pressure of 1 - 10 at., and humidity of 10-5 - 10-1 volume percent followed by freezing water produced in the process; storage of partially reduced lambda-Al2O3 in arbitrary-humidity atmosphere at up to 50 °C or in vacuum, or in inert gas atmosphere at temperature of up to 750 °C and humidity of up to 10-5 volume percent; and oxidation of partially reduced lambda-Al2O3 with water vapors at temperature of 100 - 750 °C or in vacuum at humidity of 10-5 - 10-2 volume percent. ^ EFFECT: enhanced holding capacity of hydrogen store at enhanced safety and low cost of its storage. ^ 1 cl, 87 ex |
