催化裂化最大化生产汽油技术分析及措施

根据中国石化金陵分公司1号催化裂化装置执行多产汽油方案的生产情况,从原料、催化剂、反应深度、产品拔出等方面分析了提高汽油产率的技术要领。通过采取以下措施:降低掺渣率、减压蜡油中掺入常减压重柴油馏分以改善原料性质;优化操作,挖掘生产潜能,提高处理量使装置满负荷运行;提高汽油干点,减少汽油、柴油馏分的重叠,拓宽汽油馏程等,实现增产汽油的目的。

TECHNICAL ANALYSIS AND MEASURES FOR MAXIMIZING GASOLINE PRODUCTION IN FCC UNIT

Maximizing gasoline production in No.1 FCC unit of SINOPEC Jinling Company was introduced. The technical principles to increase gasoline yield were reviewed from the view of FCC feedstock, catalyst, reaction severity and product separation. Technical measures, such as adding heavy diesel fractions in feed to reduce residue blended ratio and improve feedstock properties; optimizing operation conditions to reach full capacity production; broadening the gasoline boiling range by increase gasoline dry point and decrease the overlapping of gasoline and diesel fractions, were proposed and realized to enhance the gasoline yield.