Welcome! Let’s grow the hydrogen economy together. › Let’s grow the hydrogen community! › Questions & Answers › Can we connect an electrolyser to a desalination plant?
-
Can we connect an electrolyser to a desalination plant?
Posted by Aaradhya Nagar on October 11, 2022 at 06:56Since the electrolysis of water requires a huge amount of water, therefore is there a way in which we can use seawater for hydrogen production?
Lars RÖNTZSCH replied 4 months ago 4 Members · 7 Replies -
7 Replies
-
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.
-
Thank you, but does using this method effect the efficiency of an electrolyser?
-
Yes, it does because desalination+electrolysis requires more energy imput than electrolysis alone.
-
-
-
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.
-
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?
-
-
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.
-
Yes floating wind and floating PV, both could prove to be a feasible option in my opinion.
-