Study of thermal regeneration of spent activated carbons: Thermogravimetric measurement of various single component organics loaded on activated carbons
✍ Scribed by Motoyuki Suzuki; Dragoslav M. Misic; Osamu Koyama; Kunitaro Kawazoe
- Publisher
- Elsevier Science
- Year
- 1978
- Tongue
- English
- Weight
- 746 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0009-2509
No coin nor oath required. For personal study only.
✦ Synopsis
Thermogravity analysis of the activated carbons loaded with 32 chfferent single component orgamcs showed that TGA curves could be classified mto three dlstmct groups with regard to then shapes The organrcs that belong to Group (I) are rather volatile and TGA curves can be explamed by eqmhbrmm desorptlon model Group (II) orgamcs are relatively easy to decompose and TGA curves were Interpreted m terms of first-order cracking kinetics The parameters mcluded m these models were obtamed from the measured TGA curves by utllizmg half desorbed temperature T,,, and reciprocal slope of TGA at T,,,, AT Group (III) consists of phenol, &naphtol, lrgnm etc and gave high residuals on activated carbons after heatmg up +o 800°C This suggests that these orgamcs are the ones that are critIcal to the ordinary thermal regeneration method A rough classlficatlon of orgamcs into these groups was done by using the bollmg point and the aromatic carbon