Progress and prospect of hydrate-based desalination technology

doi:10.1007/s11708-021-0740-5

Front. Energy

2022, Vol. 16

Issue (3) : 445-459 https://doi.org/10.1007/s11708-021-0740-5

REVIEW ARTICLE

Progress and prospect of hydrate-based desalination technology

Jibao ZHANG, Shujun CHEN, Ning MAO, Tianbiao HE(

)

Department of Gas Engineering, College of Pipeline and Civil Engineering, China University of Petroleum (East China), Qingdao 266580, China

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Abstract

With the continuous growth of the population and the improvement of production, the shortage of freshwater has plagued many countries. The use of novel technologies such as desalination to produce fresh water on a large scale has become inevitable in the world. Hydrate-based desalination (HBD) technology has drawn an increasing amount of attention due to its mild operation condition and environmental friendliness. In this paper, literature on hydrate-based desalination is comprehensively analyzed and critically evaluated, focuses on experimental progress in different hydrate formers that have an impact on thermodynamics and dynamics in hydrate formation. Besides, various porous media promotion is investigated. Besides, the hydrate formation morphology and hydrate crystal structure with different hydrate formers are analyzed and compared. Moreover, molecular dynamic simulation is discussed to further understand microscopic information of hydrate formation. Furthermore, simulations of the HBD process by considering the energy consumption are also investigated. In conclusion, the hydrated based desalination is a potential technology to get fresh water in a sustainable way.

Keywords gas hydrates desalination crystal morpho-logy molecular dynamic cold energy

Corresponding Author(s): Tianbiao HE

Online First Date: 14 May 2021 Issue Date: 07 July 2022

Cite this article:

Jibao ZHANG,Shujun CHEN,Ning MAO, et al. Progress and prospect of hydrate-based desalination technology[J]. Front. Energy, 2022, 16(3): 445-459.

URL:

https://academic.hep.com.cn/fie/EN/10.1007/s11708-021-0740-5
https://academic.hep.com.cn/fie/EN/Y2022/V16/I3/445

Fig.1 Concept of HBD process (adapted with permission from Ref. [15]).

Fig.2 Kinetics comparison of hydrate formation of water, KCl, and MgCl₂ (adapted with permission from Ref. [19]).

Fig.3 Novel cylindrical annular bed reactor along with scrapper (adapted with permission from Ref. [20]).

Tab.1 Several phase equilibrium experiments of hydrate systems containing CO₂

Tab.2 Chemical additives for HBD

Tab.3 Water conversion to hydrate and salt rejection rate CP under different conditions

Fig.4 Effect of (a) stirring speed and (b) operating temperature on hydrate formation (adapted with permission from Ref. [51]).

Tab.4 Different types of porous media

Fig.5 Concept diagram of the sII propane hydrate crystal formation.

Fig.6 Categorization of hydrate crystal observations along shaft of subcooling and aqueous solution (adapted with permission from Ref. [81]).

Fig.7 Sequence images of methane hydrate formation in activated carbon (adapted with permission from Ref. [71]).

Fig.8 Snapshots taken from methane hydrate growth simulation at 60 MPa and 260 K (adapted with permission from Ref. [95]).

Fig.9 Simulation box (adapted with permission from Ref. [99]).

Fig.10 Flowchart of Cold En-HyDesal process with hydrate former recycling (adapted with permission from Ref. [108]).

Fig.11 Break down of LCOW for HyDesal and ColdEn-HyDesal (adapted with permission from Ref. [109]).

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