摘要
本文在确定催化裂化反应的八集总物理模型的基础上,以轻馏分油(LGO)和重馏分油(HGO)为原料,在小型固定流化床反应装置上进行各种条件的催化裂化反应实验。根据催化裂化反应不可逆的特点,采用自下而上分步测定的方法,通过参数估计确定了反应网络的速率常数,建立了催化裂化反应八集总动力学模型。研究结果表明,该模型能很好地拟合实验数据,预测不同条件下的产品分布,并与实际催化裂化反应规律相符,为进一步研究和开发重油催化裂化模型奠定了基础。
The purpose of this paper is to develop a predictive kinetic model consisting of eight lumped species for fluid catalytic cracking. Firstly, the physical model of catalytic cracking was determined. Furthermore, the cracking reactions of light gas oil (LGO) and heavy gas oil (HGO) were carried out on commercial equilibrium zeolite catalysts in a fixed-fluidized bed reactor. Based on the irreversible feature of catalytic cracking reactions, the rate constants involved in the reaction network of heavy gas oil were determined by use of a parameter estimation method in two steps from lower level to upper level. This work points out that this model can simulate experimental yield, predict the product distribution over a wide range of reaction conditions and agree well with the law of catalytic cracking reaction. This work may form the basis of the investigation of lumped model for residue fluid catalytic cracking.
出处
《石油学报（石油加工）》
EI
CAS
CSCD
北大核心
1994年第1期1-7,共7页
Acta Petrolei Sinica(Petroleum Processing Section)
