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if we carry on as usual the human population will continue to grow until disaster strikes or we all agree to live in overcrowded misery.
True, but whilst we will run out of fossil fuel eventually
We might find better ways to get feedstocks.
The government wants to be a zero Carbon emissions country by 2050. I think solar power and sea water is an option to extract Hydrogen, and maybe by product Oxygen, and sea minerals like Potassium and Gold... Then transport and storage are issues.Hydrogen leaks through Cobalt... we could lose a little Hydrogen constantly. Best metal for holding it is something like Platinum, but I saw a new invention, being a powder that worked better than a cylinder.
The government says, the gas power station, is for use only when wind and solar are insufficient. When the wind doesn't blow. Gas in a powder or cylinder, can be transported to a plant.
The waste from nuclear power stations, could be dumped into the deep ocean.
Both of these methods, need not contaminate the Earth's environment.in the slightest.
So, you are saying that we could use electricity to split sea water to get hydrogen which we could use in a power station to make electricity.Well, yes we could.But it would expensive and inefficient.
Quote from: Bored chemist on 24/05/2021 18:18:23So, you are saying that we could use electricity to split sea water to get hydrogen which we could use in a power station to make electricity.Well, yes we could.But it would expensive and inefficient.In energy terms, certainly inefficient, but in terms of value for money it's way ahead of battery storage and much more adaptable than pumped hydro. And the intermediate products of H and O are themselves valuable.
Hydrogen is slightly dangerous to generate and store though in large quantities, many many more gasometers tha n the uk ever had would be needed just for enough to power the uk for 1 hour.
Quote from: Petrochemicals on 26/05/2021 23:55:55Hydrogen is slightly dangerous to generate and store though in large quantities, many many more gasometers tha n the uk ever had would be needed just for enough to power the uk for 1 hour. But the gasometers the UK used to have, powered the UK for 100 years on 50% hydrogen. One of my old bosses was assigned to fire watch on top of a gasholder during the Blitz. He said that tracer bullets just produced a steady flame which was extinguished with a bit of sticky rubber like a tyre patch.
The Gasometer Oberhausen is a former gas holder in Oberhausen, Germany, which has been converted into an exhibition space......... During World War II, the Gasometer was hit by bombs several times, but kept operating. When it was shelled by allied forces it did not explode, but the gas burned up and the pressure disc slowly descended.
Analysis of the Hindenburg film footage shows that the aluminium-coated fabric caught fire and spread it. Hydrogen balloons and airships did not generally burst into flames when flying.Wikipedia has an interesting exampleQuoteThe Gasometer Oberhausen is a former gas holder in Oberhausen, Germany, which has been converted into an exhibition space......... During World War II, the Gasometer was hit by bombs several times, but kept operating. When it was shelled by allied forces it did not explode, but the gas burned up and the pressure disc slowly descended. But why let facts spoil a good argument?
But still, the Hindenburg.
Indeed if it hadn't been mixed with carbon monoxide
....did not explode but burned from the outside. Petrol vapor explodes quite nicely when mixed with air and ignited, and diesel fuel doesn't even need a spark! It may eventually dawn on you that the whole point of a thermal fuel is that it combines with oxygen and releases a lot of energy. The trick is to ignite it only when you want to, and for the most part the civilised world managed very well with piped 50% hydrogen for 150 years.Indeed if it hadn't been mixed with carbon monoxide, we'd probably still be using it, like the good citizens of Kirkwall.
Very good. Why do oil rigs burn off their propane gas?
you get a hole, a build up of gas mixed with air, and then ignition- in which case you get a massive explosion.
Hydrogen gas has 10MJ per m2, meaning we need to manufacture through electrolysis at least 2 sqkm
What he was careful not to address was the issue where you get a hole, a build up of gas mixed with air, and then ignition- in which case you get a massive explosion. It's not clear, but hydrogen may produce less of a problem from that perspective. It tends to rise rather than mix.