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Evolution of Pinch Point Zone and Batch Distillation Process with a Side Withdrawal

Author: ZhangYaoChang
Tutor: CuiXianBao
School: Tianjin University
Course: Chemical Engineering
Keywords: Batch Distillation Clamping area Simulation Lateral line discharge
CLC: TQ028.31
Type: Master's thesis
Year: 2007
Downloads: 30
Quote: 0
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Abstract


Clamping area is the distillation of the basic theory of one of the problems , for distillation operation and design is important. Continuous rectification the clamping Ou study more, while the About batch distillation the clamping Ou of research or an blank . This paper mainly conducted a multi- group yuan Batch Distillation the clamping district of research, on this basis has developed a with a lateral line out the material 's in batches DISTILLATION PROCESS . This article application of in batches Distillation constant mole held- liquid model pairs of three yuan ideals matter Department of in batches DISTILLATION PROCESS conducted a simulation calculation , explores the reflux ratio , the relative volatilization degree and raw materials composition on multivariate in batches distillation process the clamping zone the impact of , access to the multivariate in batches distillation process the clamping Ou 's novation variation regularity . Established with side -line discharge batch distillation constant volumetric liquid holdup model , and uses Gear methods for solving the band side- discharge batch distillation process was simulated with the conventional batch distillation process are compared. For from the severity of the impurities in the purification of the intermediate component separation process with conventional batch distillation process , compared with the lateral line of the fed-batch distillation process from the side of the line ahead of mined products , distillation time is shorter , the efficiency coefficient is high . Studied the lateral line discharge position , lateral line reflux ratio and overhead reflux ratio of operating parameters on with side -line out -batch distillation process impact , the findings show that these operating parameters there is an optimal value . In this paper, benzene, toluene and xylene ternary system on established with side -line discharge batch distillation constant volume of fluid retention model of experimental verification , test results and simulation results agree well . Through the band- lateral line out the feed Batch Distillation experiment , verified the belt lateral line out the Fed-Batch Distillation Process saves distillation time and energy-saving advantages.

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CLC: > Industrial Technology > Chemical Industry > General issues > Chemical processes ( physical processes and physical and chemical processes ) > Separation process > Single-phase system liquid mixture separation process > Distillation and rectification
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