A Facile Ultrapure Water Production Method for Electrolysis via Multilayered Photovoltaic/Membrane Distillation

Damian Amiruddin, Devinder Mahajan, Dufei Fang (), Wenbin Wang, Peng Wang and Benjamin S. Hsiao ()
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Damian Amiruddin: Chemistry Department, Stony Brook University, Stony Brook, NY 11794-3400, USA
Devinder Mahajan: Materials Science & Chemical Engineering Department, Stony Brook University, Stony Brook, NY 11794-2275, USA
Dufei Fang: Chemistry Department, Stony Brook University, Stony Brook, NY 11794-3400, USA
Wenbin Wang: Environmental Science and Engineering Department, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
Peng Wang: Environmental Science and Engineering Department, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
Benjamin S. Hsiao: Chemistry Department, Stony Brook University, Stony Brook, NY 11794-3400, USA

Energies, 2023, vol. 16, issue 15, 1-17

Abstract: Ultrapure water production is vital for sustainable green hydrogen production by electrolysis. The current industrial process to generate ultrapure water involves energy-intensive processes, such as reverse osmosis. This study demonstrates a facile method to produce ultrapure water from simulated seawater using a low capital cost and low-energy-consuming membrane distillation (MD) approach that is driven by the waste heat from photovoltaic (PV) panels. To optimize the PV-MD operation, modeling efforts to design a multilayered MD system were carried out. The results were used to guide the construction of several prototype devices using different materials. The best performing PV-MD device, containing evaporation and condensation regions made from steel sheets and polytetrafluoroethylene (PTFE) membranes, can produce high-purity water with conductivity less than 40 mS and flux higher than 100 g/m 2 h, which is suitable for typical electrolyzer use.

Keywords: ultrapure water; photovoltaic; membrane distillation; electrolysis; hydrogen production (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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