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Dzejn Ostin Gordost I Predrasude Pdf Download
Gordost i Predrasuda Dzejn Ostin Download. By. PDF file only Džejn Ostin – Razum i osećajnost, Nortangerska opatija, Ema, Gordost i predrasuda, P.
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Gordost i Predrasuda Dzejn Ostin Download this application is software, which can help to reading any book. PDF, TXT or read online from Scribd. Džejn Ostin – Sedam romana: 1) `Razum i osećajnost`, 2) `Gordost i a print (pdf) Download as PDF, TXT or read online.This invention relates to the reduction of the oxygen content of nitrogen-dinitrogen-containing atmospheric gases to a lower level by reaction with a specific catalyst. More particularly, this invention relates to a catalytic reduction process utilizing a catalyst prepared by impregnating an alkali metal oxide upon a substrate of alumina which has been activated by a thermal treatment in a stream of oxygen gas at a temperature ranging from 1100 to 1500.degree. F. (560.degree. to 816.degree. C.).
The benefits of obtaining a lower oxygen content in nitrogen-dinitrogen-containing gases (nitrogen-oxygen gases) include a superior inerting performance, lower possibility of explosion, and less noise and odor, with a consequent reduction of the need for additional inerting equipment (e.g., gas-tight tanks, bells, etc.) in a process facility.
The selective removal of oxygen from nitrogen-containing gases to a low level, rather than total elimination, is an important process for the production of pure nitrogen from air. Various prior art methods have been proposed for this purpose. In U.S. Pat. No. 4,188,318, for example, oxygen is removed from nitrogen-containing gases by contacting the gases with a solid catalyst, such as aluminum oxide, at a temperature in the range of 500.degree. to 1200.degree. F. (260.degree.-650.degree. C.). In U.S. Pat. No. 3,835,027, oxygen in a nitrogen-dinitrogen-containing gas mixture is removed by heating a catalyst mixture of alumina and magnesia, while U.S. Pat. No. 3,754