| 天然气与煤联合气化的热力学模拟研究 |
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| 引用本文： | 宋学平,郭占成. 天然气与煤联合气化的热力学模拟研究[J]. 计算机与应用化学, 2005, 22(1): 38-42 |
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| 作者姓名： | 宋学平 郭占成 |
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| 作者单位： | 中国科学院过程工程研究所,北京,100080;中国科学院过程工程研究所,北京,100080 |
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| 基金项目： | 国家‘863’计划资助项目(2002AA529090)，国家杰出青年科学基金(50225415) |
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| 摘 要： | 天然气与煤联合气化工艺通过改变进料条件，能够直接得到H2／CO比可调合成气。为探索进料条件对合成气H2／CO比和温度的影响规律，本文建立了描述天然气与煤联合气化制合成气热力学模型，根据该模型计算了不同进料条件对合成气H2／CO和出口温度的影响。计算结果表明，进料中CH2／O2比例的增加可同时显著提高合成气的H2／CO比和降低反应温度；进料中H2O／O2比例的增加只是显著降低反应温度，而对合成气H2／CO比的影响较小；提高进料温度和操作压力对合成气生产有利。
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| 关 键 词： | 煤 天然气 合成气 热力学 |
| 文章编号： | 1001-4160(2005)01-38-42 |
Thermodynamic simulation and analysis of synthesis gas preparation from natural gas & coal co-gasification |
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| SONG Xueping,GUO Zhancheng. Thermodynamic simulation and analysis of synthesis gas preparation from natural gas & coal co-gasification[J]. Computers and Applied Chemistry, 2005, 22(1): 38-42 |
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| Authors: | SONG Xueping GUO Zhancheng |
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| Abstract: | Co-gasifying coal and natural gas is a new process based on steam methane reforming and coal gasification. Synthesis gas of H2/CO ratio in a range of 1.0-2.0 can be obtained directly by adjusting the ratios of natural gas, oxygen and steam, A thermodynamic model of natural gas & coal co-gasification was established to investigate the relations between feedstock and H_2/CO ratio of synthesis gas. H_2/CO ratios and temperatures of synthesis gas under different operating conditions were calculated. Results showed that variation of natural gas in feedstock could largely influence H_2/CO ratio and temperature of synthesis gas simultaneously. Increase of steam in feedstock has little effect on H_2/CO of synthesis gas but can be used to control the reaction temperature. Preheating of feed and high operation pressure are both advantageous to synthesis gas preparation from natural gas & coal co-gasification. |
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| Keywords: | coal natural gas synthesis gas thermodynamics |
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