Performance of sweeping gas membrane distillation for treating produced water: Modeling and experiments

Thakur, Amit K.; Hsieh, I-Min; Islam, Rafikul; Lin, Bosong; Chen, Chau‐Chyun; Malmali, Mahdi

doi:10.1016/j.desal.2020.114597

Cited by 36 publications

(9 citation statements)

References 48 publications

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“…Model validation . After the development of MD modules, each MD module was validated against the experimental results collected from the literature [ 15 , 16 , 17 , 18 ]. Module geometry (length × width × height), membrane type and characteristics, operating temperature and pressures, and feed salinity are compiled in Table 5 .…”

Section: Methodsmentioning

confidence: 99%

“…There have been various reports that systematically investigated the membrane flux and energy efficiency of different MD configurations [ 15 , 16 , 17 , 18 , 19 ]. Eykens et al experimentally identified the suitable configuration and membrane selection under different working conditions, including feed temperature, flow rate, and salinity [ 19 ].…”

Section: Introductionmentioning

confidence: 99%

“…The energy efficiency of an evaporation-based desalination process is typically quantified as gained output ratio (GOR), defined as the ratio of the latent heat of evaporation over the amount of heat supplied to the system to produce 1 kg of water [ 6 ]. GOR is directly affected by filtration system parameters, such as membrane characteristics, module size (i.e., membrane area defined as width × length) and configuration, heat integration scheme, and flow conditions [ 15 , 16 , 17 , 18 , 19 ]. An ideal membrane for MD should have low resistance to vapor transfer and high resistance to heat transfer by conduction.…”

Section: Introductionmentioning

confidence: 99%

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Comparative Energetics of Various Membrane Distillation Configurations and Guidelines for Design and Operation

Islam

Lin

et al. 2023

Membranes

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This paper presents a comparative performance study of single-stage desalination processes with major configurations of membrane distillation (MD) modules. MD modules covered in this study are (a) direct contact MD (DCMD), (b) vacuum MD (VMD), (c) sweeping gas MD (SGMD), and d) air gap MD (AGMD). MD-based desalination processes are simulated with rigorous theoretical MD models supported by molecular thermodynamic property models for the accurate calculation of performance metrics. The performance metrics considered in MD systems are permeate flux and energy efficiency, i.e., gained output ratio (GOR). A general criterion is established to determine the critical length of these four MDs (at fixed width) for the feasible operation of desalination in a wide range of feed salinities. The length of DCMD and VMD is restricted by the feed salinity and permeate flux, respectively, while relatively large AGMD and SGMD are allowed. The sensitivity of GOR flux with respect to permeate conditions is investigated for different MD configurations. AGMD outperforms other configurations in terms of energy efficiency, while VMD reveals the highest permeate production. With larger MD modules, utilization of thermal energy supplied by the hot feed for evaporation is in the order of VMD > AGMD > SGMD > DCMD. Simulation results highlight that energy efficiency of the overall desalination process relies on the efficient recovery of spent for evaporation, suggesting potential improvement in energy efficiency for VMD-based desalination.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Comparative Energetics of Various Membrane Distillation Configurations and Guidelines for Design and Operation

Islam

Lin

et al. 2023

Membranes

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“…The eNRTL model in Aspen Properties has been used to model many industrial electrolyte systems and processes to support calculations of thermodynamic properties, calorimetric properties, fluid phase equilibria including salt solubilities, and heat and mass balances. Some prominent industrial applications includes acid gas removal, sour water stripping, sulfuric acid production, caustic brine evaporation, nitric acid dehydration, − trona processing, hybrid sulfur cycle process for hydrogen production, high salinity brines treatment and desalination, , CO 2 capture with aqueous amine solutions − and with aqueous potassium carbonates, and, most recently, CO 2 solubility in brine solutions for sequestration in deep saline aquifers, , etc. As an illustration, Figure shows the experimental data and the eNRTL model results for CO 2 solubility in pure water, 10 wt % single salt solutions, and 10 wt % mixed salt solutions of NaCl + KCl (1:1 weight ratio), NaCl + CaCl 2 (1:1 weight ratio), KCl + CaCl 2 (1:1 weight ratio), and NaCl + KCl + CaCl 2 (1:1:1 weight ratio) at 318.15 K. The applications on CO 2 capture with aqueous amine solutions and high salinity brine treatments are briefly summarized below.…”

Section: Industrial Applicationsmentioning

confidence: 99%

Electrolyte Thermodynamic Models in Aspen Process Simulators and Their Applications

Wang

Song

Zhang

et al. 2022

Ind. Eng. Chem. Res.

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Electrolyte systems are becoming increasingly important as the process industries transition to better address environmental sustainability and climate change. Industrial processes such as carbon capture and sequestration, brine water treatment, lithium refining, and many others require accurate and rigorous electrolyte thermodynamic models to support process simulation and design of chemical processes involving electrolyte systems. Distinctly different from nonelectrolyte systems, the solution nonideality of electrolyte systems is primarily characterized by the electrolyte solution chemistry and secondly impacted by the subsequent physical interactions and associations of true species in solutions. This Article presents the methodology in Aspen process simulators to address the solution chemistry with true species and apparent component approaches together with the two electrolyte thermodynamic models, Pitzer and Electrolyte Nonrandom Two-Liquid equations. Also covered are experimental data compilation, best practice in data regression, and industrial applications highlighted with CO 2 capture with amine solutions and high salinity brine solutions. We further present our perspectives in current challenges and emerging opportunities with thermodynamic modeling for electrolyte systems with high charge density ions, transport property estimation, and systematic data collection and verification.

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“…In SGMD, a sweeping gas is used on the permeate side as a carrier to remove vapor or collect vapor from the membrane surface [ 56 , 57 , 58 ]. As with air gap membrane distillation, the flow of gas reduces heat loss and significantly increases mass transfer.…”

Section: Membrane Distillation Configurationsmentioning

confidence: 99%

Recent Progress in the Membrane Distillation and Impact of Track-Etched Membranes

et al. 2021

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Membrane distillation (MD) is a rapidly developing field of research and finds applications in desalination of water, purification from nonvolatile substances, and concentration of various solutions. This review presents data from recent studies on the MD process, MD configuration, the type of membranes and membrane hydrophobization. Particular importance has been placed on the methods of hydrophobization and the use of track-etched membranes (TeMs) in the MD process. Hydrophobic TeMs based on poly(ethylene terephthalate) (PET), poly(vinylidene fluoride) (PVDF) and polycarbonate (PC) have been applied in the purification of water from salts and pesticides, as well as in the concentration of low-level liquid radioactive waste (LLLRW). Such membranes are characterized by a narrow pore size distribution, precise values of the number of pores per unit area and narrow thickness. These properties of membranes allow them to be used for more accurate water purification and as model membranes used to test theoretical models (for instance LEP prediction).

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Performance of sweeping gas membrane distillation for treating produced water: Modeling and experiments

Cited by 36 publications

References 48 publications

Comparative Energetics of Various Membrane Distillation Configurations and Guidelines for Design and Operation

Comparative Energetics of Various Membrane Distillation Configurations and Guidelines for Design and Operation

Electrolyte Thermodynamic Models in Aspen Process Simulators and Their Applications

Recent Progress in the Membrane Distillation and Impact of Track-Etched Membranes

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