| 天然气基乙炔工艺 分析与改进 |
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| 引用本文： | 王志方,郑丹星.天然气基乙炔工艺 分析与改进[J].中国化学工程学报,2008,16(5):812-818. |
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| 作者姓名： | 王志方 郑丹星 |
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| 作者单位： | School of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China |
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| 摘 要： | This article presents an acetylene production process by partial oxidation/combustion of natural gas. The thermodynamic performance and exergy analysis in the process are investigated using the flow-sheeting program Aspen Plus. The results indicate that the most important destruction of exergy is found to occur in the reactor and water quenching scrubber, amounting to 8.23% and 10.39%, respectively, of the entire system. Based on the results of thermodynamic and exergy analysis, the acetylene reactor has been retrofitted. The improvement ratios of molar 02 to CH4 and molar CO to CN4 are 0.65 and 0.20, respectively. An improvement of the acetylene production system is proposed. Adopting the improvement operation conditions and using oil to realize the reaction heat recovery, the feedstock of natural gas is reduced by 9.88% and the exergy loss in the retrofitting process is decreased by 19.71% compared to the original process.
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| 关 键 词： | acetylene exergy analysis natural gas partial oxidation hydrogen |
| 收稿时间： | 2007-12-3 |
| 修稿时间： | 2008-5-20
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Exergy analysis and retrofitting of natural gas-based acetylene process |
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| WANG Zhifang,ZHENG Danxing.Exergy analysis and retrofitting of natural gas-based acetylene process[J].Chinese Journal of Chemical Engineering,2008,16(5):812-818. |
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| Authors: | WANG Zhifang ZHENG Danxing |
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| Affiliation: | School of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China |
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| Abstract: | This article presents an acetylene production process by partial oxidation/combustion of natural gas.The thermodynamic performance and exergy analysis in the process are investigated using the tlow-sheetmg pro-gram Aspen Plus.The results indicate that the most important destruction of exergy is found to occur in the reactor and water quenching scrubber,amounting to 8.23%and 10.39%.respectively,of the entire system.Based on the results of thermodynamic and exergy analysis,the acetylene reactor has been retrofitted.The improvement ratios of molar O2 to CH4 and molar CO to CH4 are 0.65 and 0.20,respectively.An improvement of the acetylene production system is proposed.Adopting the improvement operation conditions and using oil to realize the reaction heat re- covery,the feedstock of natural gas is reduced by 9.88%and the exergy loss in the retrofitting process is decreased by 19.71%comparedtotheoriginalprocess. |
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| Keywords: | acetylene exergy analysis natural gas partial 0xidatton hydrogen3 accepted 2008-05-20 |
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