스팀 절감량 예측을 위한 흑액 다중 효용 증발 공정 모델 개발

Translated title of the contribution: Development of Black Liquor Multiple-effect-evaporation Process Model to Predict Steam Savings

Yurim Kim, Jonghun Lim, Yeongryeol Choi, Taebok Kim, Hansin Park, Hyungtae Cho, Junghwan Kim

Research output: Contribution to journalArticlepeer-review

Abstract

This study developed the black liquor evaporation process models using the multiple-effect-evaporator according to the number of effects to predict steam consumption. The developed models were divided into the black liquor preheating and evaporation processes, and a virtual reboiler was added to predict steam consumption. In simulation results, the steam consumption in the double-effect-evaporator was decreased by 48.9 %, and as the number of effects increased, the steam consumption was decreased. Finally, the steam consumption in the octuple-effect-evaporator was decreased by 61.2 %. Also, this study suggests a strategy for deriving the optimal number of effects in the process by analyzing the latent heat recovered from the saturated vapor produced in the multiple-effect-evaporator and the amount of saturated vapor produced by each effect.

Translated title of the contributionDevelopment of Black Liquor Multiple-effect-evaporation Process Model to Predict Steam Savings
Original languageKorean
Pages (from-to)25-33
Number of pages9
JournalKorean Chemical Engineering Research
Volume60
Issue number1
DOIs
Publication statusPublished - 2022 Feb

Bibliographical note

Publisher Copyright:
© 2022 Korean Institute of Chemical Engineers. All rights reserved.

All Science Journal Classification (ASJC) codes

  • General Chemical Engineering

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