Coal tar residues based activated carbon: preparation and characterization
| Autor: | Faqin Dong, Guo-Qing Zhong, Ümüt Halik, Gao Lei, Duu-Jong Lee, Qun-Wei Dai |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Kinetic model
Chemistry viruses General Chemical Engineering Inorganic chemistry 02 engineering and technology General Chemistry Activation energy Microporous material 010402 general chemistry 021001 nanoscience & nanotechnology complex mixtures 01 natural sciences 0104 chemical sciences Iodine value Volume (thermodynamics) otorhinolaryngologic diseases medicine Organic chemistry Coal tar 0210 nano-technology Pyrolysis medicine.drug Activated carbon |
| Zdroj: | Journal of the Taiwan Institute of Chemical Engineers. 63:166-169 |
| ISSN: | 1876-1070 |
| DOI: | 10.1016/j.jtice.2016.02.029 |
| Popis: | Coal tar residues (CRT) are a toxic and carcinogenic waste from coal tar processing unit that need extensive post-treatment before their safe disposal. This study prepared activated carbon from coal tar residues using activating H3PO4 at 650–1200 °C. At 850 °C, the yielded activated carbon has an iodine value of 793.5 mg/g, total pore volume of 0.286 cm3/g and micropore volume of 0.255 cm3/g, which can have feasible usage as mediate quality activated carbon. Kinetic model fitting reveals that the presence of H3PO4 increases effective reaction collision rate and decreases activation energy of pyrolysis reactions. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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