催化裂化装置采用助剂增产丙烯的工业应用研究
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摘要
本论文对国内外增产丙烯的技术发展情况进行了较全面的综述。针对中国石化股份有限公司上海高桥分公司1#催化裂化装置的特点,开展了MP031、OlefinsMax和LOSA-1丙烯助剂工业应用试验。在应用MP03 1丙烯助剂后,液化气收率上升0.35个百分点,丙烯收率(丙烯相对于原料收率,不包括干气中的丙烯,下同)上升了0.51个百分点。在应用OlefinsMax丙烯助剂后,液化气收率上升1.36个百分点,丙烯收率上升了0.61个百分点。在应用LOSA-1丙烯助剂后,液化气收率上升0.81个百分点,丙烯收率上升了0.62个百分点。三种丙烯助剂都可以显著提高丙烯的收率和液化气的收率,但对产品分布和汽油、柴油的质量没有明显影响。不过会给催化装置吸收稳定系统系统操作带来压力,导致干气中丙烯含量增高。使用增产丙烯助剂出现的上述问题提出了优化吸收稳定系统操作条件、改进工艺流程及设备结构等措施,将干气中丙烯含量降低到2 v%以内。本论文的研究结果对于其他同类催化裂化装置通过应用丙烯助剂提高丙烯收率有很好的借鉴作用。
This paper described the progress of the technologies to produce more propylene comprehensively both in domestic and abroad. According to the features of Shanghai Gao Qiao 1# FCC Unit of Sinopec, Industrial application tests of the propylene additives such as MP031, OlefinsMax and LOSA-1 were carry out. After MP031 additive was used, yield of the liquified petroleum gas (LPG) was increased by 0.35%, propylene yield (the yield of propylene relative to feedstocks, not including the propylene in dry gas) rose by 0.51%. And when LOSA-1 was added, yield of the liquified petroleum gas increased by 0.81%, propylene yield was increased by 0.62%. Three additives can significantly enhance the yield of propylene and the yield of LPG, but don't significantly impact the qualities of gasoline and diesel. Meanwhile they would affect the operation of absorption stabilization system and lead to higher. In response to the above mentioned problem, the measures such as optimizing absorption stabilization system, improving process and device structure were put forward,to control. propylene content in dry gas under 2 v%.. The results of this research are useful for other similar units to improve propylene yield by propylene additive.
This paper described the progress of the technologies to produce more propylene comprehensively both in domestic and abroad. According to the features of Shanghai Gao Qiao 1# FCC Unit of Sinopec, Industrial application tests of the propylene additives such as MP031, OlefinsMax and LOSA-1 were carry out. After MP031 additive was used, yield of the liquified petroleum gas (LPG) was increased by 0.35%, propylene yield (the yield of propylene relative to feedstocks, not including the propylene in dry gas) rose by 0.51%. And when LOSA-1 was added, yield of the liquified petroleum gas increased by 0.81%, propylene yield was increased by 0.62%. Three additives can significantly enhance the yield of propylene and the yield of LPG, but don't significantly impact the qualities of gasoline and diesel. Meanwhile they would affect the operation of absorption stabilization system and lead to higher. In response to the above mentioned problem, the measures such as optimizing absorption stabilization system, improving process and device structure were put forward,to control. propylene content in dry gas under 2 v%.. The results of this research are useful for other similar units to improve propylene yield by propylene additive.
引文
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[40]Picciotti M, Novel ethylene technologies developing, but steam cracking remains king[J].Oil Gas J,1997,95(25):53-56
[41]余达荣.高丙烯选择性催化裂解催化剂MMC-2的工业应用[J].石油炼制与化工,2004,35(10)：1-4
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