催化裂化装置大型化设计探讨  

Study on engineering design of FCC unit of economic scale

作　　者：汤红年 

机构地区：[1]中石化洛阳工程有限公司,河南省洛阳市471003

出　　处：《炼油技术与工程》2015年第6期33-39,共7页Petroleum Refinery Engineering

摘　　要：FCC装置大型化是发展的必然趋势,针对FCC装置大型化可能存在的如下问题进行了分析:FCC的装置规模直接决定了反应器的大小;再生器密相直径、再生器取热负荷及催化剂两器间的输送是制约再生器大型化的重要因素;反再系统中内构件的设计影响FCC装置流态化大型化;机组大型化涉及机组的合理配置。在FCC工艺技术方案的选择、大型化流化床设计以及设备大型化等方面提出了单系列超大型FCC装置规模的限制条件,反应系统单系列在10.0 Mt/a以下时,在解决好催化剂气、固流态化后可以进行单系列的设计;而再生器单系列的设计规模则受到装置采用的原料种类以及流态化影响因素等条件的限制;对于10.0M t/a的重油FCC装置再生器则需要采用双系列,即一个反应器,两个再生器的配置。Economic scale of FCC unit is the development trend. The possible problems in the design of economic-scale FCC unit are analyzed. The capacity of FCC unit determines the sizes of reactor; The diameter of regenerator dense bed, the heat removal duty of regenerator and transport of catalysts between reactor and regenerator are the restricting factors for the economic scale of regenerator; Whereas, the design of internals in the reactor and regenerator system also affects the economic scale of FCC unit; In addition, a good design of compressor train is required for the economic scale. The limiting conditions are presented in respect of FCC process, design of large fluidized bed and design of large-size equipment for the large single-train FCC unit. When the single-train capacity of reactor-regenerator system is lower than 10.0 Mt/a, the single-train design can be adopted if the gas and solid fluidization problems have been solved. The single-train design capacity of regenerator is limited by the types of unit＇ s feedstock and fluidization factor. For the 10.0 Mt/a RFCC unit, double-train regenerator design, i.e. 1 reactor and 2 regenerators, should be applied.

关 键 词：催化裂化装置 大型化 流态化 反再系统 能量回收机组 取热负荷 

分 类 号：TE966[石油与天然气工程—石油机械设备]