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Original Article

ECB. 2013; 2(8): 568-572


OPTIMIZATION OF FURNACE OPERATION CONDITIONS IN AN INDUSTRIAL VISBREAKING PROCESS

S. Reza Seif Mohaddecy, Sepehr Sadighi.




Abstract

In this study the visbreaking unit of Tehran refinery was simulated and then a parametric sensitivity analysis was carried out for
determination of optimum temperature. The Petro-Sim simulator, which specializes in the simulation of refinery processes, was used in this
study. Initially the simulator was validated using actual plant test runs and after tuning, the simulations provided errors less than 3%. Using
the validated simulator the sensitivity of yield of fuel oil, gasoline and fuel oil viscosity with the variation of furnace temperature (reaction
temperature) was investigated. The validated simulator was used to optimize the unit operating conditions to obtain the desired product
specifications. The optimum value of fuel oil yield, gasoline yield, viscosity and temperature were 91.51, 6.18, 79.6 cSt and 824 °F,
respectively.

Key words: visbreaking, fuel oil, simulation, Petro-Sim, sensitivity analysis






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