现代化工

现代化工 ›› 2019, Vol. 39 ›› Issue (8) : 206-209. DOI: 10.16606/j.cnki.issn0253-4320.2019.08.043

工艺与设备

乙烯装置碳二加氢反应器开车过程优化

张涛

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Optimization of start-up process of C₂ hydrogenation reactor in ethylene cracker

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文章历史 +

Received		Published
2019-03-24		2019-08-20
Issue Date	Revised Date
2019-08-13	2019-03-24

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摘要

通过在碳二加氢反应器进料冷却器工艺侧增加调温跨线，对碳二加氢充压线进行改造；优化裂解气压缩机五段防喘振阀控制方式，以满足开工初期装置投料量低时反应器对空速的要求。经过上述改造及开工控制方式优化，降低了碳二加氢反应器进料加热器蒸汽消耗，缩短了碳二加氢反应器出口乙炔合格时间。

Abstract

The C₂ hydrogenation charging system is renovated through adding a temperature regulating cross-line in the process side of the feed cooler of the C₂ hydrogenation reactor.The control mode of anti-surge valve in the fifth stage of cracking gas compressor is optimized to meet the requirement of the reactor at the initial stage of start-up when the feed amount is low.Through such renovation and the optimization of start-up control mode,the steam consumption of the feed heater in the C₂ hydrogenation reactor is reduced,and the time needed by acetylene at the outlet of the C₂ hydrogenation reactor reaching qualification is shortened.