A novel technology of carbon dioxide adsorption and mineralization via seawater decalcification by bipolar membrane electrodialysis system with a crystallizer

Zhao, Yingying; Wang, Jianhang; Ji, Zhiyong; Liu, Jie; Guo, Xiaofu; Yuan, Junsheng

doi:10.1016/j.cej.2019.122542

Cited by 59 publications

(40 citation statements)

References 25 publications

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“…While BPM-CEM might be the choice of some researchers for CO 2 recovery from carbonate solutions [105,106], others chose a BPM-AEM [43,92] for the same purpose. That is while novel configurations as BPM-AEM-AEM are also emerging for minimizing BPM fouling when extracting CaCO 3 from seawater [107], see section (3.2.4).…”

Section: Cell Configurationmentioning

confidence: 99%

“…The ocean contain DIC of~2.3-2.5 mM, mainly in the form of HCO -3 ions, in normal seawater of pH~8.1. The product of seawater CO 2 capture can be (1) gaseous CO 2 [8], (2) solid carbonates [107], or (3) dissolved bicarbonates and carbonates ions (to be subsequently stored in the ocean) [71,75,78,112]. To extract the CO 2 as gas, the bi-/ carbonate ions present in the seawater can be converted into H 2 CO * 3 in the acidic compartments adjacent to the BPM [113].…”

Section: Bpmed For Co 2 Extraction From Seawatermentioning

confidence: 99%

“…Subsequently, through vacuum stripping of the acidified stream using membrane contactors, CO 2 (g) can then be produced [8,113]. Alternatively, at alkaline pH > pKa 2 , HCO -3 converts to CO 2 -3 and can subsequently precipitate through reaction with dissolved Mg 2+ or Ca 2+ [8,107]. When the partial pressure of CO 2 remains unchanged, the pH determines which mineral is obtained e.g., the precipitation of CaCO 3 (in synthetic seawater) is favoured in 9.3 < pH < 9.6 [8,114].…”

Section: Bpmed For Co 2 Extraction From Seawatermentioning

confidence: 99%

“…In order to improve the kinetics of the precipitation, use of a seeded crystallizer unit is suggested [107,118].…”

Section: Bpmed For Co 2 Extraction From Seawatermentioning

confidence: 99%

See 3 more Smart Citations

Electrochemical carbon dioxide capture to close the carbon cycle

Sharifian

Wagterveld²,

Digdaya

et al. 2021

Energy Environ. Sci.

306

196

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Section: Cell Configurationmentioning

confidence: 99%

Section: Bpmed For Co 2 Extraction From Seawatermentioning

confidence: 99%

Section: Bpmed For Co 2 Extraction From Seawatermentioning

confidence: 99%

“…In order to improve the kinetics of the precipitation, use of a seeded crystallizer unit is suggested [107,118].…”

Section: Bpmed For Co 2 Extraction From Seawatermentioning

confidence: 99%

See 2 more Smart Citations

Electrochemical carbon dioxide capture to close the carbon cycle

Sharifian

Wagterveld²,

Digdaya

et al. 2021

Energy Environ. Sci.

306

196

View full text Add to dashboard Cite

show abstract

“…Although most of the components in the wastewater can be reclaimed by the BMED process, the biggest problem is the low yield of sulfuric acid recovery, which limits the application of BMED in industrial wastewater treatment [11]. To increase the acid concentration, Zhang et al [12] proposed filling a strong acid resin into the acid chamber to increase the acid concentration and explored the method of the energy-saving producing weak acid by BMED with the three-compartment configuration, thus enhancing the concentration of acid production (from 0.14 to 0.16 mol/L) with relatively high current density and relatively low energy consumption at the current density of 70 mA/cm 2 .…”

Section: Introductionmentioning

confidence: 99%

The Novel Strategy for Increasing the Efficiency and Yield of the Bipolar Membrane Electrodialysis by the Double Conjugate Salts Stress

et al. 2020

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To improve sulfuric acid recovery from sodium sulfate wastewater, a lab-scale bipolar membrane electrodialysis (BMED) process was used for the treatment of simulated sodium sulfate wastewater. In order to increase the concentration of sulfuric acid (H2SO4) generated during the process, a certain concentration of ammonium sulfate solution was added into the feed compartment. To study the influencing factors of sulfuric acid yield, we prepared different concentrations of ammonium sulfate solution, different feed solution volumes, and different membrane configurations in this experiment. As it can be seen from the results, when adding 8% (NH4)2SO4 into 15% Na2SO4 under the experimental conditions where the current density was 50 mA/cm2, the concentration of H2SO4 increased from 0.89 to 1.215 mol/L, and the current efficiency and energy consumption could be up to 60.12% and 2.59 kWh/kg, respectively. Furthermore, with the increase of the volume of the feed compartment, the concentration of H2SO4 also increased. At the same time, the configuration also affects the final concentration of the sulfuric acid; in the BP-A-C-BP (“BP” means bipolar membrane, “A” means anion exchange membrane, and “C” means cation exchange membrane; “BP-A-C-BP” means that two bipolar membranes, an anion exchange membrane, and a cation exchange membrane are alternately arranged to form a repeating unit of the membrane stack) configuration, a higher H2SO4 concentration was generated and less energy was consumed. The results show that the addition of the double conjugate salt is an effective method to increase the concentration of acid produced in the BMED process.

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Scaling Supercapacitive Swing Adsorption of CO₂ Using Bipolar Electrode Stacks

Li,

Bilal,

Landskron

2024

Small

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Supercapacitive swing adsorption (SSA) modules with bipolar stacks having 2, 4, 8, and 12 electrode pairs made from BPL 4 × 6 activated carbon are constructed and tested for carbon dioxide capture applications. Tests are performed with simulated flue gas (15%CO2 /85%N2) at 2, 4, 8, and 12 V, respectively. Reversible adsorption with sorption capacities (≈58 mmol kg−1) and adsorption rates (≈38 µmol kg−1 s−1) are measured for all stacks. The productivity scales with the number of cells in the module, and increases from 70 to 390 mmol h−1 m−2. The energy efficiency and energy consumption improve with increasing number of bipolar electrodes from 67% to 84%, and 142 to 60 kJ mol−1, respectively. Overall, the results show that SSA modules with bipolar electrodes can be scaled without reducing the adsorptive performance, and with improvement of energetic performance.

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A novel technology of carbon dioxide adsorption and mineralization via seawater decalcification by bipolar membrane electrodialysis system with a crystallizer

Cited by 59 publications

References 25 publications

Electrochemical carbon dioxide capture to close the carbon cycle

Electrochemical carbon dioxide capture to close the carbon cycle

The Novel Strategy for Increasing the Efficiency and Yield of the Bipolar Membrane Electrodialysis by the Double Conjugate Salts Stress

Scaling Supercapacitive Swing Adsorption of CO₂ Using Bipolar Electrode Stacks

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A novel technology of carbon dioxide adsorption and mineralization via seawater decalcification by bipolar membrane electrodialysis system with a crystallizer

Cited by 59 publications

References 25 publications

Electrochemical carbon dioxide capture to close the carbon cycle

Electrochemical carbon dioxide capture to close the carbon cycle

The Novel Strategy for Increasing the Efficiency and Yield of the Bipolar Membrane Electrodialysis by the Double Conjugate Salts Stress

Scaling Supercapacitive Swing Adsorption of CO2 Using Bipolar Electrode Stacks

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Scaling Supercapacitive Swing Adsorption of CO₂ Using Bipolar Electrode Stacks