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>The plant will use hydrogen instead of coal in the reduction process for iron ore. Where does this hydrogen come from? The vast majority of hydrogen for fuel
by djsumdog 6y ago
>The plant will use hydrogen instead of coal in the reduction process for iron ore.
Where does this hydrogen come from? The vast majority of hydrogen for fuel cells comes from petroleum and natural gas reserves.
> New blast furnaces require trillions of yen (1 trillion yen equals $9.6 billion) in investment. Although DRI equipment produces less steel, the investment is estimated at less than half of blast furnaces
So they're building a much more expensive furnace to produce less steel. Wouldn't this create more pollution (not just carbon) because you'd want to hit the same outputs and now you need more energy?
I don't understand "zero-carbon" in these cases. You still need trucks to bring in the tools and equipment to build the facility. All of them use hydrocarbons. You have hydrocarbons needed for the roads. Even if all your construction equipment is electric (they're not) you still have all the massive amounts of carbon put in to producing the electric batteries, not to mention all the waste product that comes from creating lithium batteries.
Are they using all this coal and oil and then saying it's being offset by some credit? How would that even remotely work? You plant a thousand trees for ever square meter? What about all the hydrocarbons needed to transport those seeds, feed the planting crews?
Most "Green energy" is really just burning trees (woodchips).
This whole zero-carbon thing would fall apart when you really started breaking it down. It's marketing bullshit.
- paulryanrogers 6y agoA case can be made that it's still a step in the right direction, even if there are still some unaccounted externalities.
- blisterpeanuts 6y agoHe literally just explained why it's not a step in the right direction.
- pjc50 6y agoNo, he explained why it's not a complete solution. It is a step in the right direction even if it's not strictly zero carbon.
- blisterpeanuts 6y agoHow is it a step in the right direction, if it produces roughly as much carbon and other pollutants as the original processes? It's like buying a new EV or hybrid car, thinking you're helping the environment, when in fact the carbon impact of manufacturing such vehicles is significant or even greater.
- pjc50 6y ago> if it produces roughly as much carbon and other pollutants as the original processes No evidence presented that it does produce as much. > carbon impact of manufacturing such vehicles is significant or even greater. No it isn't.
- djsumdog 6y agoElectric cars are not as green as you think they are: https://www.youtube.com/watch?v=MQLbakWESkw https://www.youtube.com/watch?v=MQLbakWESkw
- CraigJPerry 6y ago>> The vast majority of hydrogen for fuel cells comes from petroleum and natural gas reserves A quick google for mitsubishi hydrogen turns up several large scale investments they’ve made in developing alternative generation processes. Is this one of those cases where you need to invest to produce something but that’s wasted investment if there’s nothing to consume that something?