重油催化裂化沉降器油气相态计算  

PHASE STATE OF GASEOUS OIL PRODUCTS IN RFCC DISENGAGER

作　　者：蓝兴英[1] 徐春明[1] 高岱巍[1] 高金森[1] 

机构地区：[1]中国石油大学重质油国家重点实验室,北京102249

出　　处：《石油学报（石油加工）》2006年第6期29-32,共4页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：国家自然科学基金项目(20406013)资助

摘　　要：为了确定重油催化裂化沉降器中液相组分的数量及其对结焦的贡献,以工业重油催化裂化装置的沉降器为研究对象,按照正构烷烃模型分子法确定基团组成的方法,利用已编写的气化率计算程序,求取了沉降器内反应油气的重组分———油浆馏分的气化率,确定反应油气的气、液相比例。计算结果表明,在实际工业操作条件下,重油催化裂化沉降器内的油浆馏分以气、液两相状态存在,其露点温度为488.8℃,露点温度直接取决于油浆终馏分的沸程,而且油浆分压对其泡点和露点温度也有较大影响。A commercial disengager was chosen to investigate the quantity of liquid component and its effect on coking. The normal alkylane model molecule method was applied to determine the vaporization ratio of RFCC slurry, the heaviest narrow fraction in the disengager, and the ratio of gas phase and liquid phase of all gaseous oil products. The simulation results showed that the RFCC slurry existed as gas phase and liquid phase under the industrial operating condition. Its dew point temperature was 488.8℃, which was determined by the boiling range of the heaviest narrow fraction of RFCC slurry. The partial pressure of slurry also had a great effect on its bubble point and dew point temperature.

关 键 词：沉降器 结焦 油浆 气化率 

分 类 号：TE962[石油与天然气工程—石油机械设备]