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The adsorption of oxygen on brown coal char

✍ Scribed by D.J. Allardice

Publisher: Elsevier Science
Year: 1966
Tongue: English
Weight: 763 KB
Volume: 4
Category: Article
ISSN: 0008-6223
DOI: 10.1016/0008-6223(66)90087-x

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✦ Synopsis

The adsorption of oxygen on degassed brown coal char has been investigated gravimetrically in the temperature range 25"-200°C and at pressures up to 1 atm. The adsorption occurs by two separate processes, one reversible and the other irreversible. Methods have been devised to investigate these processes independently. The reversible adsorption was found to be physical adsorption, while the irreversible process is a chemisorption conforming to the Elovich equation. A mechanism for this latter process has been suggested, involving rate control by a surface migration phenomenon.

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