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Can we connect an electrolyser to a desalination plant?
Since the electrolysis of water requires a huge amount of water, therefore is there a way in which we can use seawater for hydrogen production?
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7 Replies
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Yes we can. Electrolyzers need a certain water quality, thus if no surface or ground water is available, seawater desalination is the way to go, for example, dessert regions near the shores.
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Thank you, but does using this method effect the efficiency of an electrolyser?
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Yes, it does because desalination+electrolysis requires more energy imput than electrolysis alone.
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The installation of H2 systems and desalination systems should definitely take place together in the future.
one should refrain from using pure drinking water to produce H2. I advocate either sewage, or even better, seawater.
A salt water electrolysis is technically not a problem, you can condense it before the electrolysis in a CHP operation via the exhaust line and thus have desalinated drinking water or water for the electrolysis available. A desert state doesn’t need waste heat, so you can condense salt water.
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Thank you, it is really interesting idea and I believe market should start working on this ( as I have no idea is any company is already working for the same) as it could help create more sustainable energy and a possibility of connecting wave energy power generator with desalination plant and electrolyser can also prove to be cost effective. What are your views on this?
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This seems to be a logical progression in hydrogen production world wide. We should be producing hydrogen everywhere there is a surplus of water. Eventually, the marine sector should be supplied by coastal operations or by hydrogen produced off of floating wind farms.
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Yes floating wind and floating PV, both could prove to be a feasible option in my opinion.
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