The Study on Catalytic Cracking of Gas Oil using Four Lump Kinetic Model

• Main Authors: Chen-Jui Huang, 黃振瑞
• Other Authors: Hsin-Fu Chang
• Format: Others
• Language: zh-TW
• Published: 2000
• Online Access: http://ndltd.ncl.edu.tw/handle/08407946293271713953

碩士 === 逢甲大學 === 化學工程學系 === 88 === This is a research in the gas oil catalytic cracking process using a four lump kinetic model and/or the Micro Activity Test, (MAT). A reaction control mechanism is discussed before the four lump kinetic model is employed to make predictions. Three different parameters modulus (Weisz-Prater modulus、Wheeler-Weisz modulus 、Thiele modulus) were used to estimate the controlling mechanism and all of them revealed that this kind of reaction was controlled by a kinetic chemical reaction. The lump system is divided according to actual production, including non-converted gas oil, gasoline, light-gas, and coke. This system also contains five kinetic parameters in which a catalyst deactivation constant is included. The reaction temperatures are 482℃, 502℃, and 522℃. The catalyst oil ratio is 3~4.5. The feed is gas oil from Hydrodesulfurization Unit CPC KOR and the equilibrium catalyst from RFCC process in Da Lin Oil Refinery. Lump reaction kinetic constants from experimental data have been evaluated This model exercises in estimating production ratio of gas oil catalyst cracking reaction after, and verifies the excellent evaluating capacity with an error less than 3% in the prediction of the conversion of gas oil and the yield of gasoline.