汽油加氢脱硫异构降烯烃工艺的工业应用

阐述了220kt／a催化裂化汽油加氢脱硫异构降烯烃装置的运行和标定情况。该装置产品汽油烯烃含量小于20％(V)，抗爆指数下降小于2个单位，硫含量等指标大幅度改善，汽油收率大于89％(m)，表明该技术已经作为汽油清洁化的重要手段之一；同时指出由于该装置是在原有装置基础上改造而成，反应温度控制难度大，换热方案有优化的必要；液化气中C2含量高，适合作乙烯裂解原料。     

The MIP Technology and Its Commercial Application

This article introduces the specifics of the MIP technology involving respectively the case for production of clean gasoline, the case for producing clean gasoline coupled with production of diesel and the case for producing gasoline with increased output of propylene. The performance of the MIP units that were in operation was wrapped up. Test results have shown that the MIP technology is characterized by improved product distribution as evidenced by the reduced yields of dry gas and slurry and the increas...     

Development and Commercial Application of RFCC Catalyst for Reducing Sulfur Content in Gasoline

The sulfur-reducing functional component the Lewis acid-base pair compound and associated active zeolite component were developed to prepare the RFCC catalyst DOS for reducing sulfur content in gasoline. The results of catalyst evaluation have revealed that the Lewis acid-base pair compound developed hereby could enhance the conversion of macromolecular sulfur compounds by the catalyst to promote the proceeding of desulfurization reactions, and the synergetic action of the selected zeolite and the Lewis acid-base pair compound could definitely reduce the olefins and sulfur contents in gasoline. The heavy oil conversion capability of the catalyst DOS thus developed was higher coupled with an enhanced resistance to heavy metals contamination to reduce the sulfur content in gasoline by over 20%. The commercial application of this catalyst at the SINOPEC Jiujiang Branch Company has revealed that compared to the GRV-C catalyst the oil slurry yield obtained by the catalyst DOS was reduced along with an improved coke selectivity, an increased total liquid yield, and a decreased olefin content in gasoline. The ratio of sulfur in gasoline/sulfur in feed oil could be reduced by 20.3 m%.     

SRT-Ⅲ型裂解炉中石脑油裂解的工艺数学模型——Ⅰ.清洁管模型与计算

本文针对SRT-Ⅲ型裂解炉内石脑油的裂解过程,利用分子反应模型,炉膛采用罗伯-依万斯简单分区法建立了过程的工艺数学模型。基于该模型,系统地研究了清洁管操作时管内气体温度分布、管壁温度分布和主要产物的收率分布,模型化研究结果与实际生产数据相吻合。     

清洁汽油的研究与生产技术Ⅰ.催化裂化汽油降烯烃及加氢脱硫技术进展

综述了国内外催化裂化汽油降烯烃及加氢脱硫技术进展.通过优化操作条件及采用新工艺,对裂化反应、氢转移反应和异构化反应等进行控制与选择,可以明显降低汽油烯烃含量;加氢脱硫技术能够有效降低汽油硫含量,减少辛烷值损失.针对国内汽油质量现状,提出了优化技术方案,降低生产成本的建议.     

清洁汽油的研究与生产技术 Ⅰ．催化裂化汽油降烯烃及加氢脱硫技术进展

综述了国内外催化裂化汽油降烯烃及加氢脱硫技术进展。通过优化操作条件及采用新工艺，对裂化反应、氢转移反应和异构化反应等进行控制与选择，可以明显降低汽油烯烃含量；加氢脱硫技术能够有效降低汽油硫含量，减少辛烷值损失。针对国内汽油质量现状，提出了优化技术方案，降低生产成本的建议。