Reducing the steel industries emissions

[Old Rocks]

The company I retired from is already using solar energy to power it's steel plant in Pueblo, Colorado.

 

[Moonglow]

What is the capital cost and operational cost comparisons?

 

[Mikeoxenormous]

The company I retired from is already using solar energy to power it's steel plant in Pueblo, Colorado.

That is great, and how does the steel get formed again? I bet there is an alternative source of energy to get that metal really hot..Probably using solar to heat the coffee.

 

[Moonglow]

90% powered provided by solar, that's a lot of coffee pots.

 

[harmonica]

...we can't change the climate ......Bidumb/etc is fking over America with ''''''''clean'''''' energy bullshit

 

[JohnDB]

Usually steel is melted by the use of electrical arcs from electrodes after they are heated somewhat by natural gas. It's much more efficient than other methods.

Then it can then be turned into various types of steel and formulations...tube steel, structural steel and sheet steel. Rolled, cast, or forged.

Lots of machinery needed to form whatever is desired out of liquid metal...and then there's the slag...lots of slag is generated as well....and not a lot of uses for slag either.

But Steel production is no where near the messiest metal. That distinction belongs to aluminum. It creates much much worse long lived "greenhouse gasses" than the short lived CO² ever dreamed about.

 

[Moonglow]

...we can't change the climate ......Bidumb/etc is fking over America with ''''''''clean'''''' energy bullshit

This is a private enterprise which is doing this not the govt.

 

[Captain Caveman]

The company I retired from is already using solar energy to power it's steel plant in Pueblo, Colorado.

Your ex-colleagues will be over the moon !

 

[harmonica]

This is a private enterprise which is doing this not the govt.

hahahhahah--irrelevant to the fact the Bidumb is fking over America

 

[toobfreak]

The company I retired from is already using solar energy to power it's steel plant in Pueblo, Colorado.

1). They must have a solar panel one mile square. Do you have any notion how much electrical and NG energy it takes to make steel?

2). Carbon makes steel. High carbon makes really GOOD steel!

3). Steel is an essential element to our society and technology. Any attempt to replace carbon with something else to make good steel can only result in a DRASTIC INCREASE in the cost of making the steel, not only elementarily, but because steel plants everywhere would have to invest billions into adapting to the new process.

 

[harmonica]

1). They must have a solar panel one mile square. Do you have any notion how much electrical and NG energy it takes to make steel?

2). Carbon makes steel. High carbon makes really GOOD steel!

3). Steel is an essential element to our society and technology. Any attempt to replace carbon with something else to make good steel can only result in a DRASTIC INCREASE in the cost of making the steel, not only elementarily, but because steel plants everywhere would have to invest billions into adapting to the new process.

it's a Youtube link!!!!!!!!!!!!!!! HAHAHAHAHAHAHAHAHAHA

 

[JohnDB]

1). They must have a solar panel one mile square. Do you have any notion how much electrical and NG energy it takes to make steel?

2). Carbon makes steel. High carbon makes really GOOD steel!

3). Steel is an essential element to our society and technology. Any attempt to replace carbon with something else to make good steel can only result in a DRASTIC INCREASE in the cost of making the steel, not only elementarily, but because steel plants everywhere would have to invest billions into adapting to the new process.

There are all sorts of steel formulations for various purposes...high carbon steel has it's uses...but isn't suitable for everything.

It's worthless for building materials as it's too brittle...not enough flex.

 

[Moonglow]

hahahhahah--irrelevant to the fact the Bidumb is fking over America

I am sure he's using a rubber.

 

[JGalt]

1). They must have a solar panel one mile square. Do you have any notion how much electrical and NG energy it takes to make steel?

2). Carbon makes steel. High carbon makes really GOOD steel!

3). Steel is an essential element to our society and technology. Any attempt to replace carbon with something else to make good steel can only result in a DRASTIC INCREASE in the cost of making the steel, not only elementarily, but because steel plants everywhere would have to invest billions into adapting to the new process.

"To produce a ton of steel in an electric arc furnace requires approximately 400 kilowatt-hours (1.44 gigajoules) per short ton or about 440 kWh (1.6 GJ) per tonne; the theoretical minimum amount of energy required to melt a tonne of scrap steel is 300 kWh (1.09 GJ) (melting point 1,520 °C (2,768 °F)). Therefore, a 300-tonne, 300 MVA EAF will require approximately 132 MWh of energy to melt the steel, and a "power-on time" (the time that steel is being melted with an arc) of approximately 37 minutes. Electric arc steelmaking is only economical where there is plentiful, reliable electricity, with a well-developed electrical grid. In many locations, mills operate during off-peak hours when utilities have surplus power generating capacity and the price of electricity is less. This compares very favourably with energy consumption of global steel production by all methods estimated at some 20 GJ per tonne[9] (1 gigajoule is equal to approximately 270 kWh). "

Electric arc furnace - Wikipedia.

 

[toobfreak]

There are all sorts of steel formulations for various purposes...high carbon steel has it's uses...but isn't suitable for everything. It's worthless for building materials as it's too brittle...not enough flex.

You're missing the point because you don't know what you are talking about. The primary alloy or iron in making most any form of steel is CARBON to fill the cubic wall bonds in the atoms at high temperature. Only very special alloys like interstitial-free and maraging steel have little or no carbon in them that I can think of. Other than that, carbon is almost universally present to some degree.

 

[harmonica]

I am sure he's using a rubber.

he's an idiot --getting back into the Parris Agreement

 

[toobfreak]

"To produce a ton of steel in an electric arc furnace requires approximately 400 kilowatt-hours (1.44 gigajoules) per short ton or about 440 kWh (1.6 GJ) per tonne; the theoretical minimum amount of energy required to melt a tonne of scrap steel is 300 kWh (1.09 GJ) (melting point 1,520 °C (2,768 °F)). Therefore, a 300-tonne, 300 MVA EAF will require approximately 132 MWh of energy to melt the steel, and a "power-on time" (the time that steel is being melted with an arc) of approximately 37 minutes. Electric arc steelmaking is only economical where there is plentiful, reliable electricity, with a well-developed electrical grid. In many locations, mills operate during off-peak hours when utilities have surplus power generating capacity and the price of electricity is less. This compares very favourably with energy consumption of global steel production by all methods estimated at some 20 GJ per tonne[9] (1 gigajoule is equal to approximately 270 kWh). "

Electric arc furnace - Wikipedia.

That all sounds about right. BOF, induction, and other older forms of steel making are pretty reduced these days. If you have ever seen them dropping those big carbon electrodes down into a vessel of wet scrap steel to see the water explode into steam sending a cloud flying 100 feet high, you know that it takes one beaucoup amount of energy to melt steel.

That's a lotta solar panels. And solar panels don't work at night-- -- -- steel plants work around the clock.

 

[JohnDB]

You're missing the point because you don't know what you are talking about. The primary alloy or iron in making most any form of steel is CARBON to fill the cubic wall bonds in the atoms at high temperature. Only very special alloys like interstitial-free and maraging steel have little or no carbon in them that I can think of. Other than that, carbon is almost universally present to some degree.

Well I was making the distinction that 440 Isn't the same steel used as for collumns and beams.
Steel is formulated specifically for it's purpose these days. Yes, carbon goes into most formulations but not in super high amounts as denoted as a "high carbon" steel as in a 440 or something.

Watch a little "forged in fire" and then understand a bit more

 

[toobfreak]

Steel is formulated specifically for it's purpose these days.

It always has been. One company in my town makes over 200 different kinds of steel alone.

Yes, carbon goes into most formulations but not in super high amounts as denoted as a "high carbon" steel

The difference between carbon steel and high carbon steel is 2.0% to 2.5%.

 

[Mikeoxenormous]

Usually steel is melted by the use of electrical arcs from electrodes after they are heated somewhat by natural gas. It's much more efficient than other methods.

Then it can then be turned into various types of steel and formulations...tube steel, structural steel and sheet steel. Rolled, cast, or forged.

Lots of machinery needed to form whatever is desired out of liquid metal...and then there's the slag...lots of slag is generated as well....and not a lot of uses for slag either.

But Steel production is no where near the messiest metal. That distinction belongs to aluminum. It creates much much worse long lived "greenhouse gasses" than the short lived CO² ever dreamed about.

I just dont see the electrodes using solar energy to get it hot enough. Maybe coffee but not steel.