A Stagewise Algorithm for Multicomponent Multistage Batch Distillation Calculation

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Tsutomu Aragaki²  Zhi Cai Yang²  Seung-Tae Koh²  Hideki Mori²  Hiroki Goto²  Iwao Akiba¹ 

[1] Idemitsu Petrochemical Co. Ltd.;Department of Applied Chemistry, Nagoya Institute of Technology

关键词: Distillation;    Batch Distillation;    Simulation Method;    Multicomponent;    Implicit Euler Method;   

DOI  :  10.1252/jcej.28.576

来源: Maruzen Company Ltd

【 摘 要 】

References(7)A stagewise algorithm is proposed for the solution of multicomponent multistage batch distillation problems. In order to make the algorithm more precise and flexible, a generalized implicit Euler equation is implemented for numerical integration of the process variables on each stage at succeeding time steps. An overall normalized θ method is also employed to accelerate convergence for each time step. The relative performance of the proposed method compared with the Runge-Kutta method is shown using a numerical example; the CPU time can be decreased by up to 1/300. Comparison of the simulation results with the experiment suggests the adequacy of the proposed method.

【 授权许可】

Unknown