Energy Saving Research on Multi-effect Evaporation Crystallization Process of Bittern Based on MVR and TVR Heat Pump Technology
American Journal of Chemical Engineering
Volume 8, Issue 3, May 2020, Pages: 54-62
Received: Apr. 22, 2020;
Accepted: Jun. 4, 2020;
Published: Jun. 17, 2020
Views 238 Downloads 139
Deming Yang, College of Petrochemical Engineering, Changzhou University, Changzhou, China
Bingqin Leng, College of Petrochemical Engineering, Changzhou University, Changzhou, China
Tao Li, College of Petrochemical Engineering, Changzhou University, Changzhou, China
Ming Li, College of Petrochemical Engineering, Changzhou University, Changzhou, China
This work keeps an eye on the energy saving research on evaporation crystallization process of bittern. Based on the thermo sensitivity of solubility of various salts in bittern, the magnesium salts are purified. The conventional evaporation crystallization process used to separate the bittern demands high energy consumption and has low thermodynamic efficiency. Therefore, the multi-effect evaporation (MEE), thermal vapor recompression (TVR) heat pump and mechanical vapor recompression (MVR) heat pump technology were applied to the conventional evaporation crystallization process. The MVR and TVR technology can both make full use of the secondary steam heating materials that will save energy. In addition, Aspen Plus (Version 7.3) was used to simulate the processes of the electrolyte-containing system under the ELECNTRAL thermodynamic model. For the better evaluation of various evaporation crystallization processes, some important evaluation indexes, such as energy consumption, annual total cost (ATC) and exergy loss were chosen as objective functions. Compared with the double-effect evaporation crystallization process coupled with TVR heat pump technology, the results indicated that the double-effect evaporation crystallization process coupled with MVR heat pump technology can save energy consumption and ATC by 80.52% and 15.32% respectively. Furthermore, the MVR heat pump technology takes the lowest effective energy loss, which is a more competitive factor of evaporation crystallization process of bittern.
Energy Saving Research on Multi-effect Evaporation Crystallization Process of Bittern Based on MVR and TVR Heat Pump Technology, American Journal of Chemical Engineering.
Vol. 8, No. 3,
2020, pp. 54-62.
Ayoub GM, Hamzeh A, Semerjian L. Post treatment of tannery wastewater using lime/bittern coagulation and activated carbon adsorption. DESALINATION. Vol. 273, No. 2-3, 2011, pp. 359-365.
Niu XS, Wang AJ, Zheng MP. The consumption law and demand forecast of potash in China. China Mining. Vol. 28, 2019, pp. 6-12.(In Chinese)
Alamdari A, Rahimpour MR, Esfandiari N, Nourafkan E. Kinetics of magnesium hydroxide precipitation from sea bittern. Chemical Engineering and Processing: Process Intensification. Vol. 47, No. 2, 2008, pp. 215-221.
Di Palma L, Verdone N, Chianese A, Di Felice M, Merli C, Petrucci E, et al. Treatment of wastewater with high inorganic salts content. ENVIRON ENG SCI. Vol. 19, No. 5, 2002, pp. 329-339.
Smit JT, Steyl JDT. Leaching process in the presence of hydrochloric acid for the recovery of a value metal from an ore: EP1809778B1 [P]. 2006-4-27.
Wang H, Ding WZ, Tan DS. Crystalline equilibrium of magnesium sulfate in chloride solutions. HYDROMETALLURGY OF CHINA. Vol. 36, No. 1, 2017, pp. 50-53.(In Chinese)
Lefebvre O, Moletta R. Treatment of organic pollution in industrial saline wastewater: A literature review. WATER RES. Vol. 40, No. 20, 2006, pp. 3671-3682.
Gao X, Ma Z, Ma J, Yang L. Application of Three-Vapor Recompression Heat-Pump Concepts to a Dimethylformamide-Water Distillation Column for Energy Savings. ENERGY TECHNOL-GER. Vol. 2, No. 3, 2014, pp. 250-256.
Hanneman H, Robertson LJ. Heat recovery systems. In: Energy use dairy process. Brussels, Belgium: International Dairy Federation, 2005.
Modla G, Lang P. Heat pump systems with mechanical compression for batch distillation. ENERGY. Vol. 62, 2013, pp. 403-417.
Reddick C, Sorin M, Sapoundjiev H, Aidoun Z. Carbon capture simulation using ejectors for waste heat upgrading. ENERGY. Vol. 100, 2016, pp. 251-261.
Janghorban Esfahani I, Kang YT, Yoo C. A high efficient combined multi-effect evaporation-absorption heat pump and vapor-compression refrigeration part 1: Energy and economic modeling and analysis. ENERGY. Vol. 75, 2014, pp. 312-326.
Yue C, Wang B, Zhu B. Thermal analysis for the evaporation concentrating process with high boiling point elevation based exhaust waste heat recovery. DESALINATION. Vol. 436, 2018, pp. 39-47.
Han D, He W, Yue C, Pu W, Liang L. Analysis of energy saving for ammonium sulfate solution processing with self-heat recuperation principle. APPL THERM ENG. Vol. 73, No. 1, 2014, pp. 641-649.
Alasfour FN, Abdulrahim HK. The effect of stage temperature drop on MVC thermal performance. DESALINATION. Vol. 265, No. 1-3, 2011, pp. 213-221.
Chen LF, Zhu HB, Xu L. Simulation of thermo-recompression evaporation in purified brine. INORGANIC CHEMICALS INDUSTRY. Vol. 48, No. 4, 2016, pp. 53-56.(In Chinese)
Boukhalfa N, Méniai A. Thermodynamic Modeling of Aqueous Electrolytes Type 2-1. Procedia Engineering. Vol. 148, 2016, pp. 1121-1129.
Yang D, Yin Y, Wang Z, Zhu B, Gu Q. Multi-Effect Evaporation Coupled with MVR Heat Pump Thermal Integration Distillation for Separating Salt Containing Methanol Wastewater. Energy and Power Engineering. Vol. 9, No. 12, 2017, pp. 772-785.
Gao X, Gu Q, Ma J, Zeng Y. MVR heat pump distillation coupled with ORC process for separating a benzene-toluene mixture. ENERGY. Vol. 143, 2018, pp. 658-665.
Nafey AS, Fath HES, Mabrouk AA. Thermo-economic investigation of multi effect evaporation (MEE) and hybrid multi effect evaporation--multi stage flash (MEE-MSF) systems. DESALINATION. Vol. 201, No. 1-3, 2006, pp. 241-254.
Darwish M. A., Hisham El-D. The heat recovery thermal vapor-compression desalting system: a comparison with other thermal desalination processes. Applied Energy. Vol. 416, No. 6, 1995, pp. 523-537.
Zhao D, Xue J, Li S, Sun H, Zhang Q. Theoretical analyses of thermal and economical aspects of multi-effect distillation desalination dealing with high-salinity wastewater. DESALINATION. Vol. 273, No. 2-3, 2011, pp. 292-298.
El Dessouky H, Alatiqi I, Bingulac S, Ettouney H. Steady--State Analysis of the Multiple Effect Evaporation Desalination Process. CHEM ENG TECHNOL. Vol. 21, No. 5, 1998, pp. 437-451.
Kamali RK, Abbassi A, Sadough Vanini SA. A simulation model and parametric study of MED--TVC process. DESALINATION. Vol. 235, 2009, pp. 340-351.
Al-Mutaz IS, Wazeer I. Development of a steady-state mathematical model for MEE-TVC desalination plants. DESALINATION. Vol. 351, 2014, pp. 9-18.
Kouta A, Al-Sulaiman F, Atif M, Marshad SB. Entropy, exergy, and cost analyses of solar driven cogeneration systems using supercritical CO2 Brayton cycles and MEE-TVC desalination system. ENERG CONVERS MANAGE. Vol. 115, 2016, pp. 253-264.
Hayani Mounir S, Feidt M, Vasse C. Thermoeconomic study of a system for pollutant concentration with mechanical vapour compression. APPL THERM ENG. Vol. 25, No. 2-3, 2005, pp. 473-484.
Aly NH, El-Figi AK. Mechanical vapor compression desalination systems--a case study. DESALINATION. Vol. 158, No. 1, 2003, pp. 143-150.
Elvis A, Nidret I, Zdravko K, Ignacio E. Simultaneous optimization and heat integration of evaporation systems including mechanical vapor recompressions and background process. ENERGY. Vol. 158, 2018, pp. 1160-1191.
Liang L, Han D, Ma R, Peng T. Treatment of high-concentration wastewater using double-effect mechanical vapor recompression. DESALINATION. Vol. 314, 2013, pp. 139-146.
None. GB/T 50441-2007 Standard for calculation of energy consumption in petrochemical engineering design. China Planning Press, 2008. (In Chinese).