Timeline for Best options for decarbonising steel production?
Current License: CC BY-SA 3.0
21 events
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| Apr 1, 2021 at 13:33 | answer | added | juhist | timeline score: 1 | |
| Mar 31, 2021 at 22:34 | answer | added | Keith McClary | timeline score: -2 | |
| Mar 23, 2021 at 3:10 | answer | added | LazyReader | timeline score: -4 | |
| Mar 20, 2021 at 14:57 | answer | added | blacksmith37 | timeline score: 0 | |
| Mar 19, 2021 at 3:03 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Mar 3, 2020 at 17:45 | history | edited | Nic |
add tag: metal (it pairs nicely with industrial-production)
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| Dec 31, 2016 at 7:38 | history | edited | 410 gone | CC BY-SA 3.0 |
edited to clarify which bits of hte process are in scope
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| Dec 31, 2016 at 1:53 | comment | added | Douglas Daseeco | A couple of comments on the comments: (1) There are many renewable things that are not sustainable because not all renewal processes can be sustained indefinitely without prohibitive cost, (2) The primary gas produced by deoxidation of iron oxide is primarily CO not CO2, (3) the quantity produced is dwarfed by several orders of magnitude by internal combustion engines, and (4) to get an economy that needs "no additional iron", one needs to arrest the growth of steel structure worldwide. That's simply not going to happen in this century. | |
| Dec 29, 2016 at 4:00 | comment | added | LShaver♦ | I think the question still needs a bit of work... what is the coke used for? if @SherwoodBotsford's comment is accurate I think it would be valuable to add this to the question. | |
| Dec 26, 2016 at 17:22 | answer | added | Douglas Daseeco | timeline score: 0 | |
| Nov 29, 2016 at 3:52 | comment | added | Sherwood Botsford | The problem is that iron ore is FeO or Fe2O3. The usual way to remove the carbon is to remove it using a reaction with C. Even if the heat comes from something else, there is no good alternative to C that I know of. | |
| Sep 22, 2016 at 5:35 | comment | added | Srihari Yamanoor | Here is a nice report on this topic. If you have not seen it, I'd suggest flipping through: gov.uk/government/uploads/system/uploads/attachment_data/file/… | |
| Feb 19, 2016 at 15:17 | comment | added | Sherwood Botsford | Can arc furnaces be used for primary iron making? I thought that the basic reaction to make iron was FeO + Coke => Fe + CO2 (Yes various forms of iron oxide) Just getting it hot will not separate the oxygen from the iron. | |
| Jan 20, 2015 at 21:55 | comment | added | mart | AFAIK over here (GErmany) 90% of scrap iron gets recycled, so you can skip the oxidising step. To go that route, we'd need an economy that needs no additional iron ... | |
| Jan 19, 2015 at 11:09 | history | tweeted | twitter.com/#!/StackSustain/status/557132624503013376 | ||
| S Jan 19, 2015 at 8:01 | history | suggested | msb | CC BY-SA 3.0 |
original title looks like OP wants to remove carbon from steel, not from its production, which the question clarifies
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| Jan 19, 2015 at 7:25 | review | Suggested edits | |||
| S Jan 19, 2015 at 8:01 | |||||
| Jan 19, 2015 at 1:08 | comment | added | 410 gone | @HighlyIrregular thanks for the prompt - I had a bit of a rummage around, and have corrected and tightened up the question a bit. | |
| Jan 19, 2015 at 1:05 | history | edited | 410 gone | CC BY-SA 3.0 |
added 51 characters in body
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| Jan 18, 2015 at 23:30 | comment | added | Highly Irregular | It's not clear why you're saying the process is carbon-intensive even when the electricity is renewable. I know carbon is an ingredient in the steel itself (though not in the form of a greenhouse gas), so is it the process of getting the carbon into the iron that creates CO2 even when electricity is used for the heat? ie does a proportion of the carbon get burnt during the process? | |
| Jan 18, 2015 at 15:20 | history | asked | 410 gone | CC BY-SA 3.0 |