Browse > Article
http://dx.doi.org/10.9713/kcer.2022.60.1.25

Development of Black Liquor Multiple-effect-evaporation Process Model to Predict Steam Savings  

Kim, Yurim (Green Materials and Processes R&D Group, Korea Institute of Industrial Technology)
Lim, Jonghun (Green Materials and Processes R&D Group, Korea Institute of Industrial Technology)
Choi, Yeongryeol (Green Materials and Processes R&D Group, Korea Institute of Industrial Technology)
Kim, Taebok (Project Part, MOORIM P&P Co.)
Park, Hansin (Project Part, MOORIM P&P Co.)
Cho, Hyungtae (Green Materials and Processes R&D Group, Korea Institute of Industrial Technology)
Kim, Junghwan (Green Materials and Processes R&D Group, Korea Institute of Industrial Technology)
Publication Information
Korean Chemical Engineering Research / v.60, no.1, 2022 , pp. 25-33 More about this Journal
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.
Keywords
Black liquor; Evaporation process; Multiple-effect-evaporator (MEE); Process modeling;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Singh, R. and Heldman, D., Introduction to Food Engineering, 5th ed., 1-861(2014).
2 Jaishree, V., "Optimization of a Multiple Effect Evaporator System," Ph.D. Dissertation, Department of Chemical Engineering National Institute of Technology, Rourkela (2010).
3 Tran, H. and Vakkilainnen, E. K., "The Kraft Chemical Recovery Process," TAPPI Kraft Recovery Course, 1-8(2012).
4 Lim, J., Choi, Y., Kim, G. and Kim, J., "Modeling of the Wet Flue Gas Desulfurization System to Utilize Low-grade Limestone," Korean Journal of Chemical Engineering, 37, 2085-2093 (2020).   DOI
5 Kim, C., Lee, J., Park, S., and Moon, S., "Global Trends and Prospects of Black Liquor as Bioenergy," J. of Korea TAPPLI, 51(5), 3-15(2019).
6 Maakala, V., Jarvinen, M. and Vuorinen, V., "Computational Fluid Dynamics Modeling and Experimental Validation of Heat Transfer and Fluid Flow in the Recovery Boiler Superheater Region," Appl. Therm. Eng., 139, 222-238(2018).   DOI
7 Rowell, R. M., Handbook of Wood Chemistry and Wood Composites, 2nd ed., CRC Press (2012).
8 Choi, Y., An, N., Moon, I. and Kim, J., "Energy Optimization via Process Modification To Maximize Economic Feasibility of the Butane Gas-Splitting Process," Ind. Eng. Chem. Res., 59(40), 18019-18027(2020).   DOI
9 Joo, H., Hwang, I. and Kwak, H., "Development of Multi Effect Distillation for Solar Thermal Seawater Desalination System," J. Korean Sol. Energy Soc., 31(1), 1-7(2011).   DOI
10 Verma, O. P., Mohammed, T. H., Mangal S. and Manik G., "Minimization of Energy Consumption in Multi-stage Evaporator System of Kraft Recovery Process Using Interior-point Method," Energy, 129, 148-157(2017).   DOI
11 Bhargava, R., Khanam, S., Mohanty, B. and Ray, A. K., "Simulation of Flat Falling Film Evaporator System for Concentration of Black Liquor," J. Compchemeng., 32(12), 3213-3223(2008).
12 Ren, W., "Development of a Free Lime Monitoring System for the Kraft Recovery Process Development of a Free Lime Monitoring System for the Kraft," Master Dissertation, Department of Chemical Engineering and Applied Chemistry University of Toronto (2014).
13 Systems, C., Duke University Construction & Design Standards, Duke university, 1-6 (2017).
14 Lim, J. and Kim, J., "Optimization of a Wet Flue Gas Desulfurization System Considering Low-grade Limestone and Waste Oyster Shell," J. Korea Soc. Waste Manag., 37(4), 263-274(2020).   DOI
15 Choi, Y., Kim, J. and Moon, I., "Simulation and Economic Assessment of Using H2O2 Solution in Wet Scrubber for Large Marine Vessels," Energy, 194(2020).
16 Gebreyohannes, S., Neely, B. and Gasem, K., "Generalized Nonrandom Two-Liquid (NRTL) Interaction Model Parameters for Predicting Liquid-Liquid Equilibrium Behavior," Ind. Eng. Chem. Res., 53(31), 12445-12454(2014).   DOI
17 Ek, M., Gellerstedt, G. and Henriksson, G., Pulp and Paper Chemistry and Technology, 2nd Ed., De Gruyter, 121-149, 429-460 (2017).
18 Jeong, Y., Jung, J., Lee, U., Yang, C. and Han, C., "Techno-economic Analysis of Mechanical Vapor Recompression for Process Integration of Post-combustion CO2 Capture with Downstream Compression," Chem. Eng. Res. Des., 104, 247-255(2015).   DOI