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| 论文编号: |
122214O120130308 |
| 第一作者所在部门: |
101组 |
| 中文论文题目: |
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| 英文论文题目: |
Evaluation of CO2 Gasification Reactivity of Different Coal Rank Chars by Physicochemical Properties
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| 论文题目英文: |
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| 作者: |
景旭亮
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| 论文出处: |
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| 刊物名称: |
energy＆fuel
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| 年: |
2013
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| 卷: |
27 |
| 期: |
12 |
| 页: |
7287-7293 |
| 联系作者: |
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| 收录类别: |
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| 影响因子: |
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| 摘要: |
The isothermal and non-isothermal CO2 gasification of eight different coal rank chars was conducted by a
thermogravimetric analyzer (TGA), and the reactivity index and peak temperature were obtained to express the gasification
reactivity. In addition, the physicochemical properties of these chars, such as the alkali index, Brunauer？Emmett？Teller surface
area (SBET), micropore area (Smic), and carbon crystalline structure, were examined by an inductively coupled plasma (ICP)
spectrometer, N2 adsorption, and X-ray diffraction (XRD). The CO2 chemisorption was also measured by a TGA, and the total,
strong, and weak chemisorbed volumes (Ctotal, Cstr, and Cwea) were obtained. All of these properties were used to evaluate the
CO2 gasification reactivity of these chars. The results show that the gasification reactivity of chars decreases with an increasing
coal rank. In comparison to the other properties, the Ctotal and Cstr are the best parameters for predicting the gasification
reactivity, and the linear correlation coefficients between Ctotal/Cstr and gasification reactivity can reach up to 0.90 or even 0.98. It
suggests that the CO2 chemisorption can be used to evaluate the gasification reactivity of different coal rank chars. |
| 英文摘要: |
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