Chemical process simulation for minimizing energy consumption in pulp mills

被引：22

作者：

Cardoso, Marcelo ^{[1
]}

de Oliveira, Katia Dionisio ^{[1
]}

Avelar Costa, George Alberto ^{[1
]}

Passos, Maria Laura ^{[2
]}

机构：

[1] Univ Fed Minas Gerais, Dept Chem Engn, Sch Engn, BR-30160030 Belo Horizonte, MG, Brazil

[2] Univ Fed Sao Carlos, Drying Ctr, Dept Chem Engn, BR-13560 Sao Carlos, SP, Brazil

来源：

APPLIED ENERGY | 2009年 / 86卷 / 01期

关键词：

Process simulation; Minimizing energy; Pulp mill;

D O I：

10.1016/j.apenergy.2008.03.021

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Chemical process simulation has proven to be an effective tool for performing a systematic and global analysis of energy systems to identify routes for maximizing the process efficiency concerning to the heat recovery. This paper shows an application of computer simulations in a Brazilian pulp mill, using two strategies for minimizing the mill energy consumption. In the first one, the overall heat transfer coefficient has been predicted for each body of the multiple effect evaporators by using continuous on-line data from the industrial plant in the black liquor recover unit. By monitoring oscillations of this heat transfer coefficient, the suitable time for washing the evaporator heat transfer surfaces can be well determined, reducing the energy loss during black liquor evaporation. In the second strategy, the liquor combustion has been simulated as function of the black liquor solids concentration to analyze its effect on the recovery boiler efficiency improvement. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：45 / 51

页数：7

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