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FDFCC process lumped kinetic model

Author: PeiXu
Tutor: OuYangFuSheng
School: East China University of Science and Technology
Course: Chemical processes
Keywords: Catalytic cracking FDFCC process Lumped Kinetic model Parameter Estimation
CLC: TE624.41
Type: Master's thesis
Year: 2011
Downloads: 95
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Abstract


In this paper, FCC propylene prolific domestic technology development and lumped model for a more comprehensive overview . To production of propylene and olefin cracking process flexible multi-effect (FDFCC-Ⅲ) for the study, according to FDFCC-Ⅲ process reaction mechanism and characteristics , combined with the pilot data and industrial data to determine the basis for the division of lumped proposed heavy oil riser ten lumped reaction network and gasoline riser seven lumped kinetic reaction network , kinetic equation modeling . Fourth-order Runge-Kutta method for solving differential equations, in order to optimize the BFGS method of calculating the results to Microsoft C as a platform for the preparation of the corresponding model parameter estimation software . And in accordance with the test data , calculated the heavy oil riser ten lumped model and gasoline riser seven lumped kinetic parameters . The data validation test results show that the model predicted value and the actual value of the relative error of less than 5% , the kinetic parameters obtained model is reliable. On this basis , the use of factor setting means ways to remove the pilot plant and industrial -device the error factor to determine the appropriate device , industrial validation results show that the product distribution of whole apparatus predicted value and the actual value of the relative error is substantially are controlled within 5% . Description unit factor set reasonable, the dynamic model is reliable. FDFCC to the established process lumped kinetic model , based on the operational performance of the device drawn maps, results showed that the reaction temperature, space velocity , catalyst to oil ratio and the back ratio refining process parameters on product distribution accord FDFCC-Ⅲ rules and characteristics of the reaction process , the actual process can be used to guide the optimization of operating conditions .

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CLC: > Industrial Technology > Oil and gas industry > Oil, natural gas processing industry > Petroleum refining > The refining process > Catalytic converter > Catalytic cracking
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