提高重油催化裂化装置经济效益的措施

Measures for improving economics of RFCCU

以装置经济效益最大化为目的,建立了数学分析模型,并结合大港石化公司的实际状况对不同的生产工艺(如干气预提升、终止剂技术、稳定汽油回炼等)、操作条件(如反应温度、催化剂类型等)进行了统计分析,讨论了这些方案对产品分布和经济效益的影响。同时,以大量生产数据为基础,找出了平衡剂上Ni含量和Sb/Ni与催化剂活性的关系,以及平衡剂活性对转化率和各催化产品分布的影响,从而最终确定出装置经济效益最大化数学模型。讨论了当原料油性质、石油产品市场、新鲜催化剂价格变化时,新鲜催化剂补充速率的调整方案。

Based on a mathematic model, measures for improving the economics of RFCCU were discussed in this paper. Different processing methods, such as lifting dry gas, quenching, gasoline recycling, etc. were analyzed. Makeup rate of fresh catalyst and passivators should be adjusted in response to variation in properties of the feed oil and price of products, catalyst and passivators to achieve maximum economic profits.