| Autor: |
Hui Ling Fan, Yan Peng Zhao, Fei Xue, Xian Bin Dong, Qiao Fen Zhang, Shang Guan Ju |
| Rok vydání: |
2012 |
| Předmět: |
|
| Zdroj: |
Advanced Materials Research. :2773-2776 |
| ISSN: |
1662-8985 |
| DOI: |
10.4028/www.scientific.net/amr.550-553.2773 |
| Popis: |
Due to high in desulfurization activity, big in sulfur capacity and easy in regeneration, iron oxide desulfurization sorbents have been used to remove hydrogen sulfide derived from coal gas at normal temperature. At the same time the removing H2S from coal gas containing CO can generate COS, which is more difficult to removal than H2S. γ-FeOOH desulfurization sorbent was prepared by the fast oxidizing method. Kinetics study of COS formation in γ-FeOOH desulfurization was performed under 40-80°C，the CO+H2S+N2mixtures and over a residence time of 0.04~0.09s. LevenbergMarquardt and lsqcurvefit methods in MATLAB are used for the regression of experimental data. The established kinetics model of COS formation is described by the following: rCOS=8.9990*104exp(-22540/RT)PCOPH2S. The recognition of mechanism model reveals that Langmuir-Hinshelwood mechanism can perfectly fit with this reaction system. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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