Deterioration of activated carbon by oxidants, contaminants and carbon regeneration

2019 ◽  
Vol 161 ◽  
pp. 181-187
Author(s):  
Shengpin Li ◽  
Wenpeng Li ◽  
Honghan Chen ◽  
Song Jin ◽  
Fei Liu ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Carbon Regeneration

Supercritical CO2 regeneration of activated carbon loaded with organic adsorbates

1997 ◽  
Vol 35 (7) ◽  
pp. 261-268 ◽  
Author(s):  
Kazuyuki Chihara ◽  
Kanji Oomori ◽  
Takao Oono ◽  
Yosuke Mochizuki
Keyword(s):  
Activated Carbon ◽  
Cost Estimation ◽  
Supercritical Co2 ◽  
Adsorption Equilibrium ◽  
Equilibrium Constants ◽  
Adsorption Dynamics ◽  
Boiling Points ◽  
Organic Adsorbates ◽  
Carbon Regeneration ◽  
Co2 Density

Supercritical CO2 regeneration is one of the possibilities for spent carbon regeneration loaded with some organics. Here, adsorption equilibrium and adsorption dynamics were evaluated for some typical organic pollutants under some supercritical CO2 conditions. A supercritical CO2 chromatograph packed with activated carbon (F-400, CAL) was used to detect the pulse responses of organics, which were analyzed by moment analysis. Adsorption equilibrium constants of some organics varied with CO2 density and their boiling points. Possibility of regeneration of each substance was discussed. Cost estimation was necessary and was the key point of this technique.

Kinetics of spent activated carbon regeneration

AIChE Journal ◽  
1988 ◽  
Vol 34 (10) ◽  
pp. 1656-1662 ◽  
Author(s):  
Peter Harriott ◽  
Alan Tat-Yan Cheng
Keyword(s):  
Activated Carbon ◽  
Carbon Regeneration ◽  
Kinetics Of

Study on Thermal Regeneration for Caffeine-Saturated Activated Carbon

2013 ◽  
Vol 781-784 ◽  
pp. 1941-1944 ◽  
Author(s):  
Zhao You Zhu ◽  
Li Li Wang ◽  
Wan Ling Wang ◽  
Ying Long Wang
Keyword(s):  
Activated Carbon ◽  
Carbon Layer ◽  
Carbon Surface ◽  
Optimum Conditions ◽  
Gas Velocity ◽  
Thermal Regeneration ◽  
Regeneration Time ◽  
Before And After ◽  
Carbon Regeneration ◽  
Carrier Gas Velocity

Waste activated carbon (AC) containing caffeine was produced during the process of the production for caffeine. The process of treatment caffeine-saturated AC using thermal regeneration was explored and factors on the regeneration of activated carbon were investigated. The optimum conditions obtained were: temperature is 650 °C, the regeneration time is 180 min, the carrier gas velocity is 0.002 m/s, carbon layer thickness is 0.1 m. Under these conditions, activated carbon regeneration efficiency reached 90.3%. In addition, the pore structure of activated carbon before and after regeneration was characterized and the activated carbon surface area and pore size distribution under optimum conditions were determined by the adsorption isotherms.

Efficiency evaluation of thermal, ultrasound and solvent techniques in activated carbon regeneration

2020 ◽  
pp. 1-12 ◽  
Author(s):  
Keila Guerra Pacheco Nunes ◽  
Letícia Weidlich Sfreddo ◽  
Morgana Rosset ◽  
Liliana Amaral Féris
Keyword(s):  
Activated Carbon ◽  
Efficiency Evaluation ◽  
Carbon Regeneration

Saturated activated carbon regeneration by UV-light, H2O2 and Fenton reaction

2020 ◽  
Vol 250 ◽  
pp. 117112 ◽  
Author(s):  
Danilo H.S. Santos ◽  
José L.S. Duarte ◽  
Josealdo Tonholo ◽  
Lucas Meili ◽  
Carmem L.P.S. Zanta
Keyword(s):  
Activated Carbon ◽  
Fenton Reaction ◽  
Uv Light ◽  
Carbon Regeneration

Thermoanalytical study of activated carbon regeneration. III. o-, m-, p- nitroaniline desorption

1979 ◽  
Vol 30 (1-2) ◽  
pp. 259-262 ◽  
Author(s):  
Vincenzo Amicarelli ◽  
Giuseppe Baldassarre ◽  
Vito Balice ◽  
Lorenzo Liberti
Keyword(s):  
Activated Carbon ◽  
Thermoanalytical Study ◽  
Carbon Regeneration

Thermoanalytical study of activated carbon regeneration. I. Desorption of phenol and aniline

1979 ◽  
Vol 30 (1-2) ◽  
pp. 247-253 ◽  
Author(s):  
Vincenzo Amicarelli ◽  
Giuseppe Baldassarre ◽  
Lorenzo Liberti
Keyword(s):  
Activated Carbon ◽  
Thermoanalytical Study ◽  
Carbon Regeneration
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