| 煤气化耦合C_1合成反应热力学分析 |
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| 引用本文： | 徐静,蔡东方,王梓召,王黎,冯霄.煤气化耦合C_1合成反应热力学分析[J].石油化工,2011,40(12):1275-1280. |
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| 作者姓名： | 徐静 蔡东方 王梓召 王黎 冯霄 |
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| 作者单位： | 西安交通大学能动学院多相流国家重点实验室,陕西西安,710049 |
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| 摘 要： | 提出了"煤气化与C1合成叠加耦合"的新工艺思想,即在煤气化过程中,使新生态的H2和CO在具有丰富孔隙结构的煤表面直接进行C1合成,并对这一新工艺进行了热力学分析。通过化学平衡的热力学分析发现,反应体系的独立反应数为9;生成各种烃的反应的吉布斯自由能变随温度变化的曲线斜率均为负值,升高温度有利于生成碳原子数多的烃,降低温度有利于生成碳原子数少的烃;平衡组成中C2～4烃的含量在900 K左右出现最大值;压力在一定范围内对平衡组成的影响比较明显,适当升高压力可提高烃的含量;增大n(H2O)∶n(C)不利于烯烃的生成。
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| 关 键 词： | 煤气化 C1化学 耦合反应 热力学分析 |
Thermodynamic Analysis of Coal Gasification Coupling C_1 Synthesis |
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| Xu Jing
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Cai Dongfang
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Wang Zizhao
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Wang Li
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Feng Xiao.Thermodynamic Analysis of Coal Gasification Coupling C_1 Synthesis[J].Petrochemical Technology,2011,40(12):1275-1280. |
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| Authors: | Xu Jing Cai Dongfang Wang Zizhao Wang Li Feng Xiao |
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| Affiliation: | Xu Jing,Cai Dongfang,Wang Zizhao,Wang Li,Feng Xiao(State Key Laboratory of Multiphase Flow,School of Energy and Power Engineering,Xi'an Jiaotong University,Xi'an Shaanxi 710049,China) |
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| Abstract: | A new process for the overlapped coupling between coal gasification and C1 synthesis was proposed,which was in the coal gasification process,hydrocarbons were synthesized from the newly generated carbon monoxide and hydrogen on the coal surface with porous structure.The thermodynamic analysis showed that there were nine independent reactions in the reaction system.Parameters of the independent reactions were obtained by atom matrix analysis.All the curve slopes of Gibbs free energy changes of the reactions ... |
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| Keywords: | coal gasification C1 chemistry coupling reaction thermodynamic analysis |
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