【摘要】 针对MIP工艺的原料(减渣/油浆层、蜡油/回炼油层、柴油层)和产物(汽油、液化气+干气、焦炭)六个集总组分渣油催化裂化动力学模型,并根据某工业催化裂化提升管反应器流场特性应用序列理想平推流反应器与理想全混流反应器模型的混合反应器模型,建立了工业渣油催化裂化装置反应再生过程工艺计算模型。结合采用由化验值校正和模型参数交替校正的双重校正策略,在某工业连续催化裂化装置上进行在线工艺计算应用,以在线预测过程的裂化产物收率与产物分布。在进料和反应操作条件较大的变化范围内,在线预测趋势和预测精度均令人满意,符合工业过程先进控制的工艺计算精度需求。更多还原

【Abstract】 Based on six-lump residual fluid catalytic cracking kinetic models of raw material(vacuum residue/slurry layer,petrolatum/cycle oil layer,diesel fuel)and product(gasoline,liquefied gas and dry gas,coke)of maximizing iso-paraffins(MIP)and the fluid characteristics in the industrial riser reactors,a processing simulation model adopting the combination model of ideal series plug flow reactor model and ideal continuously stirred tank reactor model was constructed.The online process calculation of this model was carried out on an industrial continuous catalytic cracking processing to forecast the yield and distribution of the cracking products.The calculation utilized a double updating technology which corrects alternatively with the laboratory value bias updating method and model parameters updating method.The forecasting trend and precision are satisfactory according to the advanced process control specification in a large range of feeding and operation conditions.更多还原