Exergy Analysis and Retrofitting of Natural Gas-based Acetylene Process  

作　　者：王志方 郑丹星 

机构地区：[1]School of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China

出　　处：《Chinese Journal of Chemical Engineering》2008年第5期812-818,共7页中国化学工程学报（英文版）

基　　金：Supported by the National Natural Science Foundation of China （90210032, 50576001）.

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.这篇文章由天然气的部分氧化 / 燃烧介绍一个乙炔生产过程。在这进程的热力学的性能和 exergy 分析用 flow-sheeting 程序白杨被调查加。结果显示 exergy 的最重要的破坏被发现在熄灭 scrubber 的反应堆和水发生，分别地，全部系统等于 8.23% 和 10.39% 。基于结果热力学并且 exergy 分析，乙炔反应堆被翻新了。到 CH4 的臼齿的 O2 和到 CH4 的臼齿的公司的改进比率分别地是 0.65 和 0.20。乙炔生产系统的改进被建议。采用改进操作条件并且使用油认识到反应热恢复，天然气的化工物品被 9.88% 减少，在翻新的过程的 exergy 损失被 19.71% 与原来的过程相比减少。

关 键 词：ACETYLENE exergy analysis natural gas partial oxidation HYDROGEN 

分 类 号：TE64[石油与天然气工程—油气加工工程]