A Method to Reduce Steam Consumption of ECF Bleaching Based on Operation Optimizing

A Method to Reduce Steam Consumption of ECF Bleaching Based on Operation Optimizing

Development of paper industry has been restricted by resources, energy and environment deeply; further reducing energy consumption becomes an urgent problem to be solved. In this paper, the calculating model of steam consumption in bleaching process is established under the premise of ensuring produ...

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Bibliographic Details
Main Authors: Shaoxu Chen, Zhichao Ma, Jiang Liu, Jingjing Yang, Yongjun Yin, Lei Zhan
Format: Article
Language:English
Published: MDPI AG 2021-05-01
Series:Processes
Subjects:
optimization
ECF bleaching
steam consumption
system modeling
cost saving
Online Access:https://www.mdpi.com/2227-9717/9/6/928
id doaj-6b3b34a768934634951b1ced7436b48c
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spelling doaj-6b3b34a768934634951b1ced7436b48c2021-06-01T01:05:26ZengMDPI AGProcesses2227-97172021-05-01992892810.3390/pr9060928A Method to Reduce Steam Consumption of ECF Bleaching Based on Operation OptimizingShaoxu Chen0Zhichao Ma1Jiang Liu2Jingjing Yang3Yongjun Yin4Lei Zhan5College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, ChinaShandong Century Sunshine Paper Group Co., Ltd., Weifang 262400, ChinaCollege of Light Industry and Food Engineering, Guangxi University, Nanning 530004, ChinaCollege of Light Industry and Food Engineering, Guangxi University, Nanning 530004, ChinaCollege of Light Industry and Food Engineering, Guangxi University, Nanning 530004, ChinaGuangxi Bossco Environmental Protection Technology Co., Ltd., Nanning 530007, ChinaDevelopment of paper industry has been restricted by resources, energy and environment deeply; further reducing energy consumption becomes an urgent problem to be solved. In this paper, the calculating model of steam consumption in bleaching process is established under the premise of ensuring product quality and controlling bleaching cost. Then, an optimization model for minimizing steam consumption is constructed. Compared with before optimization, the steam consumption of the optimized bleaching system reduced by 19.48% (0.5014 t/adt) at a loss of 0.11% brightness (0.1 ISO%) and 5.17% viscosity (33 mL/g). The amount of chemicals should be increased to ensure the quality of the pulp while decreasing the bleaching temperature to reduce steam consumption, the cost of bleaching pulp has decreased by 1.62% (3.19 USD/adt) after optimization. The verification experiments showed all the pulp quality indices can meet the requirements of bleached pulp.https://www.mdpi.com/2227-9717/9/6/928optimizationECF bleachingsteam consumptionsystem modelingcost saving
collection DOAJ
language English
format Article
sources DOAJ
author Shaoxu Chen
Zhichao Ma
Jiang Liu
Jingjing Yang
Yongjun Yin
Lei Zhan
spellingShingle Shaoxu Chen
Zhichao Ma
Jiang Liu
Jingjing Yang
Yongjun Yin
Lei Zhan
A Method to Reduce Steam Consumption of ECF Bleaching Based on Operation Optimizing
Processes
optimization
ECF bleaching
steam consumption
system modeling
cost saving
author_facet Shaoxu Chen
Zhichao Ma
Jiang Liu
Jingjing Yang
Yongjun Yin
Lei Zhan
author_sort Shaoxu Chen
title A Method to Reduce Steam Consumption of ECF Bleaching Based on Operation Optimizing
title_short A Method to Reduce Steam Consumption of ECF Bleaching Based on Operation Optimizing
title_full A Method to Reduce Steam Consumption of ECF Bleaching Based on Operation Optimizing
title_fullStr A Method to Reduce Steam Consumption of ECF Bleaching Based on Operation Optimizing
title_full_unstemmed A Method to Reduce Steam Consumption of ECF Bleaching Based on Operation Optimizing
title_sort method to reduce steam consumption of ecf bleaching based on operation optimizing
publisher MDPI AG
series Processes
issn 2227-9717
publishDate 2021-05-01
description Development of paper industry has been restricted by resources, energy and environment deeply; further reducing energy consumption becomes an urgent problem to be solved. In this paper, the calculating model of steam consumption in bleaching process is established under the premise of ensuring product quality and controlling bleaching cost. Then, an optimization model for minimizing steam consumption is constructed. Compared with before optimization, the steam consumption of the optimized bleaching system reduced by 19.48% (0.5014 t/adt) at a loss of 0.11% brightness (0.1 ISO%) and 5.17% viscosity (33 mL/g). The amount of chemicals should be increased to ensure the quality of the pulp while decreasing the bleaching temperature to reduce steam consumption, the cost of bleaching pulp has decreased by 1.62% (3.19 USD/adt) after optimization. The verification experiments showed all the pulp quality indices can meet the requirements of bleached pulp.
topic optimization
ECF bleaching
steam consumption
system modeling
cost saving
url https://www.mdpi.com/2227-9717/9/6/928
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