Hydrogen pipelines
Posted on 09/12/2022 5:14:47 PM PDT by nickcarraway
Electrolysis.
Hmmm...
Why didn’t somebody think of that before?
Being an academic, it is likely that Mr. Hu has never heard of hydrogen embrittlement. You really don't want your hydrogen pipeline getting brittle and going KA-BLOOEY!
“Why didn’t somebody think of that before?”
The have.
Related:
Scientists use garden plants to make hydrogen – the world’s ‘most promising’ renewable fuel
Perhaps they can create ginormous pit mines everywhere to mine enough materials to make enough solar cells to cover thousands of square miles to super inefficiently create hydrogen by electrolysis. Sounds Wiley Coyote level of genius
Hydrogen pipelines
I understand there are several engineering problems to be solved, and there has to date been no successful demonstration project to harvest “green hydrogen” at any kind of scale. If they can do it, then great. Let’s see it in action.
The take-home message from this article:
Even engineering programs are failing their students these days.
You just can’t repurposed NG pipelines to carry H.
“Being an academic, it is likely that Mr. Hu has never heard of hydrogen embrittlement. You really don’t want your hydrogen pipeline getting brittle and going KA-BLOOEY!”
Gaseous hydrogen can be transported through pipelines much the way natural gas is today. Approximately 1,600 miles of hydrogen pipelines are currently operating in the United States.
https://www.energy.gov/eere/fuelcells/hydrogen-pipelines
“An international team of scientists say they have found a new way to extract water from bone-dry air to produce hydrogen”
wouldn’t it be more efficient to just obtain the water from a well, pond, lake, stream, river or ocean?
“I understand there are several engineering problems to be solved, and there has to date been no successful demonstration project to harvest “green hydrogen” at any kind of scale. If they can do it, then great. Let’s see it in action.”
———Not a demonstration——————
I was just gonn’a say . . . my 7th grade science teacher showed us how it is done ... um ... 1959 or so
All they need is few tons of “pixie dust”...
If you are going to build a system that needs a lot of water and the resulting product will be transported hundreds of miles to be used, why not start out where there is lots of water (an ocean) and a place where there are lots of pipelines (a port). hey, lets build one near an ocean port and skip the part about sucking water from the air. Naaaaa...cant get any money to study THAT. Wait!! Doesn’t it take a lot of energy to crack water into hydrogen and oxygen? Solve that and watch, oxygen will magically become a greenhouse gas and be BAD.
Another problem that I can think of is that hydrogen molecules are so tiny that they can escape from nearly anything.
93 liters of hydrogen....
Ok, at what pressure?
Or from a more humid area?
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