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化工学报  2015 

乙炔加氢反应系统操作优化策略

DOI: 10.11949/j.issn.0438-1157.20141592, PP. 373-377

Keywords: 负荷分配,切换策略,乙炔加氢,反应器

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Abstract:

乙炔加氢反应系统是乙烯生产流程中的重要装置,在催化剂反应动力学模型和失活模型已知的情况下,研究两组串联反应器中除炔负荷的最佳分配。通过优化计算结果显示,一段反应器入口氢炔比尽量控制在1.0以下,二段反应器的氢炔比根据实际需要可以从1.9逐渐提高到3.5。考虑实际的操作费用和产品价格因素,在负荷分配优化操作的前提下,进一步研究了反应器切换再生对整体经济效益的影响。为使其整体效益最大,一段反应器应该使用14个月后切换再生,而二段反应器使用4个月后就需要切换再生。

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