Design of novel seawater bittern recovery process for CO2 and SOx utilization

Jonghun Lim; Deok Ju Kim; Hyungtae Cho; Junghwan Kim

doi:10.1016/j.desal.2022.115995

Design of novel seawater bittern recovery process for CO₂ and SO_x utilization

Jonghun Lim, Deok Ju Kim, Hyungtae Cho, Junghwan Kim

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Considerable seawater bittern is produced during salt production. Seawater bittern can be used to reduce CO₂ and SO_x because of the presence of valuable mineral ions, such as K⁺ and Mg²⁺, which react with the carbonate and sulfate ions present in high concentrations. In this study, a novel seawater bittern recovery process is proposed for CO₂ and SO_x utilization. The proposed process has the following steps: (1) metal ion separation of the seawater bittern to produce KOH and Mg(OH)₂; (2) SO_x capture and utilization using the generated Mg(OH)₂; (3) CO₂ capture and utilization using the generated KOH. The pay-back period (PBP) was calculated to verify the economic feasibility of the proposed process. The results revealed an SO_x and a CO₂ capture efficiency of approximately 99 % and 98 %, respectively. Furthermore, the annual net revenue was approximately 153,439 USD/y based on the profit obtained from the generated product and savings on absorbent. Thus, the PBP was approximately 6.2 y.

Original language	English
Article number	115995
Journal	Desalination
Volume	540
DOIs	https://doi.org/10.1016/j.desal.2022.115995
Publication status	Published - 2022 Oct 15

Bibliographical note

Funding Information:
This work was supported by the Korean Institute of Industrial Technology within the framework of the following projects: “Development of Global Optimization System for Energy Process [grant number IR-22-0040 , IZ-22-0049 , UR-22-0031 ]”, “Development of complex parameter smart analysis modules for color customering [grant number EH-22-0011 ]” and “Development of AI Platform for Continuous Manufacturing of Chemical Process [grant number JH-22-0004 ]”.

Publisher Copyright:
© 2022 The Authors

All Science Journal Classification (ASJC) codes

Chemistry(all)
Chemical Engineering(all)
Materials Science(all)
Water Science and Technology
Mechanical Engineering

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10.1016/j.desal.2022.115995

Cite this

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title = "Design of novel seawater bittern recovery process for CO2 and SOx utilization",

abstract = "Considerable seawater bittern is produced during salt production. Seawater bittern can be used to reduce CO2 and SOx because of the presence of valuable mineral ions, such as K+ and Mg2+, which react with the carbonate and sulfate ions present in high concentrations. In this study, a novel seawater bittern recovery process is proposed for CO2 and SOx utilization. The proposed process has the following steps: (1) metal ion separation of the seawater bittern to produce KOH and Mg(OH)2; (2) SOx capture and utilization using the generated Mg(OH)2; (3) CO2 capture and utilization using the generated KOH. The pay-back period (PBP) was calculated to verify the economic feasibility of the proposed process. The results revealed an SOx and a CO2 capture efficiency of approximately 99 % and 98 %, respectively. Furthermore, the annual net revenue was approximately 153,439 USD/y based on the profit obtained from the generated product and savings on absorbent. Thus, the PBP was approximately 6.2 y.",

author = "Jonghun Lim and Kim, {Deok Ju} and Hyungtae Cho and Junghwan Kim",

note = "Funding Information: This work was supported by the Korean Institute of Industrial Technology within the framework of the following projects: “Development of Global Optimization System for Energy Process [grant number IR-22-0040 , IZ-22-0049 , UR-22-0031 ]”, “Development of complex parameter smart analysis modules for color customering [grant number EH-22-0011 ]” and “Development of AI Platform for Continuous Manufacturing of Chemical Process [grant number JH-22-0004 ]”. Publisher Copyright: {\textcopyright} 2022 The Authors",

year = "2022",

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doi = "10.1016/j.desal.2022.115995",

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journal = "Desalination",

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AU - Cho, Hyungtae

AU - Kim, Junghwan

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PY - 2022/10/15

Y1 - 2022/10/15

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