Full recovery of brines at normal temperature with process-heat-supplied coupled air-carried evaporating separation (ACES) cycle

Abstract Conventional air-carried evaporating separation (ACES) technology, to achieve complete separation and recovery of water and salt in brine, tends to necessitate heating air above a critical temperature (typically>90 °C). In this paper, a novel concept of process-heat-supplied and an ACES...

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Main Authors: Jing Yu, Yujiang Xia, Liang Chen, Weidong Yan, Baobin Liu, Sumin Jin
Format: Article
Language:English
Published: Nature Portfolio 2024-12-01
Series:npj Clean Water
Online Access:https://doi.org/10.1038/s41545-024-00430-6
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author Jing Yu
Yujiang Xia
Liang Chen
Weidong Yan
Baobin Liu
Sumin Jin
author_facet Jing Yu
Yujiang Xia
Liang Chen
Weidong Yan
Baobin Liu
Sumin Jin
author_sort Jing Yu
collection DOAJ
description Abstract Conventional air-carried evaporating separation (ACES) technology, to achieve complete separation and recovery of water and salt in brine, tends to necessitate heating air above a critical temperature (typically>90 °C). In this paper, a novel concept of process-heat-supplied and an ACES cycle with this technique is proposed. A comprehensive thermodynamic analytical investigation is conducted. The results indicate that at heat source supply temperature T supply of only 45.17 °C, this novel unit is capable of achieving complete separation of water and salt from 5 wt% concentration brine. Meanwhile, thermodynamic mechanism analysis reveals that sufficient process-heat-supplied affords the fluid self-adaptive regulation on the driving potential of heat and mass transfer, thus circumventing traditional heat and mass transfer limitation. Additionally, a solar ACES system with process-heat-supplied incorporating heat pump is further proposed. For this system, theoretical evaporation rate for unit area of solar irradiation m e-solar = 2.23 kg/(m2·h), integrated solar utilization efficiency η i = 188%; while considering overall losses m e-solar = 1.41 kg/(m2·h), η i = 95.2%.
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spelling doaj-art-5fbf91dac86142ea84260046e4a603ac2025-08-20T02:39:34ZengNature Portfolionpj Clean Water2059-70372024-12-017112110.1038/s41545-024-00430-6Full recovery of brines at normal temperature with process-heat-supplied coupled air-carried evaporating separation (ACES) cycleJing Yu0Yujiang Xia1Liang Chen2Weidong Yan3Baobin Liu4Sumin Jin5School of Internet of Things and Intelligent Engineering, Jiangsu Vocational Institute of Commerce, NO. 180 Longmian Avenue, Jiangning DistrictSchool of Internet of Things and Intelligent Engineering, Jiangsu Vocational Institute of Commerce, NO. 180 Longmian Avenue, Jiangning DistrictYancheng Institute of Technology, NO. 1 Hope Avenue Middle RoadSchool of Internet of Things and Intelligent Engineering, Jiangsu Vocational Institute of Commerce, NO. 180 Longmian Avenue, Jiangning DistrictSchool of Internet of Things and Intelligent Engineering, Jiangsu Vocational Institute of Commerce, NO. 180 Longmian Avenue, Jiangning DistrictSchool of Energy Science and Engineering, Nanjing Tech University, NO.30 Puzhu Road(S)Abstract Conventional air-carried evaporating separation (ACES) technology, to achieve complete separation and recovery of water and salt in brine, tends to necessitate heating air above a critical temperature (typically>90 °C). In this paper, a novel concept of process-heat-supplied and an ACES cycle with this technique is proposed. A comprehensive thermodynamic analytical investigation is conducted. The results indicate that at heat source supply temperature T supply of only 45.17 °C, this novel unit is capable of achieving complete separation of water and salt from 5 wt% concentration brine. Meanwhile, thermodynamic mechanism analysis reveals that sufficient process-heat-supplied affords the fluid self-adaptive regulation on the driving potential of heat and mass transfer, thus circumventing traditional heat and mass transfer limitation. Additionally, a solar ACES system with process-heat-supplied incorporating heat pump is further proposed. For this system, theoretical evaporation rate for unit area of solar irradiation m e-solar = 2.23 kg/(m2·h), integrated solar utilization efficiency η i = 188%; while considering overall losses m e-solar = 1.41 kg/(m2·h), η i = 95.2%.https://doi.org/10.1038/s41545-024-00430-6
spellingShingle Jing Yu
Yujiang Xia
Liang Chen
Weidong Yan
Baobin Liu
Sumin Jin
Full recovery of brines at normal temperature with process-heat-supplied coupled air-carried evaporating separation (ACES) cycle
npj Clean Water
title Full recovery of brines at normal temperature with process-heat-supplied coupled air-carried evaporating separation (ACES) cycle
title_full Full recovery of brines at normal temperature with process-heat-supplied coupled air-carried evaporating separation (ACES) cycle
title_fullStr Full recovery of brines at normal temperature with process-heat-supplied coupled air-carried evaporating separation (ACES) cycle
title_full_unstemmed Full recovery of brines at normal temperature with process-heat-supplied coupled air-carried evaporating separation (ACES) cycle
title_short Full recovery of brines at normal temperature with process-heat-supplied coupled air-carried evaporating separation (ACES) cycle
title_sort full recovery of brines at normal temperature with process heat supplied coupled air carried evaporating separation aces cycle
url https://doi.org/10.1038/s41545-024-00430-6
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