naa a22 4500 510820557 CHVBK 20180411083529.0 cr unu---uuuuu 180411e20130401xx s 000 0 eng 10.1007/s11814-013-0006-y doi (NATIONALLICENCE)springer-10.1007/s11814-013-0006-y Regeneration of catalyst clay soils (Tonsil CO 610 G) by supercritical carbon dioxide [Elektronische Daten] [Hamid Rajaei, Ali Golchehreh, Ali Hezave, Feridun Esmaeilzadeh] Extraction of deactivatived materials from contaminated clay soils (Tonsil CO 610 G) by supercritical carbon dioxide was investigated. Effect of different conditions including extraction temperature (308.15-338.15 K) and pressure (100-330 bar) (thermodynamic conditions), flow rate (4.2-42.6 cc/min), and static time (45-85 min) were investigated to find the optimum conditions for extraction of deactivatived materials. Based on the different experiments, optimum conditions for flow rate (4.2 cc/min), static time (85 min) and extraction pressure and temperature (330 bar and 313.15 K) were obtained. In addition, the GC-MS analysis and Bromine index (BI) analysis were revealing that the clay soil is activated and could be used as catalyst again. Korean Institute of Chemical Engineers, Seoul, Korea, 2013 Supercritical Carbon Dioxide nationallicence Tonsil CO 610 G nationallicence Extraction nationallicence Soil Contamination nationallicence Regeneration nationallicence Rajaei Hamid Chemical and Petroleum Engineering Department, School of Engineering, Shiraz University, Shiraz, Iran aut Golchehreh Ali Chemical and Petroleum Engineering Department, School of Engineering, Shiraz University, Shiraz, Iran aut Hezave Ali Dashtestan Branch, Islamic Azad University, Borazjan, Iran aut Esmaeilzadeh Feridun Chemical and Petroleum Engineering Department, School of Engineering, Shiraz University, Shiraz, Iran aut Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/4(2013-04-01), 842-851 0256-1115 30:4<842 2013 30 11814 https://doi.org/10.1007/s11814-013-0006-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11814-013-0006-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Rajaei Hamid Chemical and Petroleum Engineering Department, School of Engineering, Shiraz University, Shiraz, Iran aut NATIONALLICENCE 700 1- Golchehreh Ali Chemical and Petroleum Engineering Department, School of Engineering, Shiraz University, Shiraz, Iran aut NATIONALLICENCE 700 1- Hezave Ali Dashtestan Branch, Islamic Azad University, Borazjan, Iran aut NATIONALLICENCE 700 1- Esmaeilzadeh Feridun Chemical and Petroleum Engineering Department, School of Engineering, Shiraz University, Shiraz, Iran aut NATIONALLICENCE 773 0- Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/4(2013-04-01), 842-851 0256-1115 30:4<842 2013 30 11814 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer