Towards the Electrochemical Retention of CO <sub>2</sub> : Is it Worth it?
نویسندگان
چکیده
This work focuses on the use of NaOH produced cathodically by reduction water to retain gaseous CO2 in a combined electrolyzer-absorber device. The process deals with two relevant environmental concerns: desalination and carbon sequestering, using only electricity heat, which can be provided green sources. Results demonstrate that technology is feasible, composition final product depends operation conditions applied. Removal rates 130 mmol CO2/h were obtained at 7.5 A coulombic efficiency removal 47.63 %. Efficiency production chlorine, hydrogen decreases large current densities because promotion oxidation promoted transport protons from anodic cathodic compartment cell. Low should used promote formation NaHCO3 avoid scaling problems (formation deposits Na2CO3) spray column. heated air evaporate absorption column produces evaporated higher quality (in terms lower conductivity)
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ژورنال
عنوان ژورنال: ChemElectroChem
سال: 2021
ISSN: ['2196-0216']
DOI: https://doi.org/10.1002/celc.202101080