Clean Coal vs Dirty Coal?

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BeylemZ-1B
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Clean Coal vs Dirty Coal?

Postby BeylemZ-1B » Mon Nov 25, 2019 3:15 pm

can someone explain the difference between clean coal and dirty coal? I remember it being explained in the lecture in terms of Carbon of Sulfur dominant, but I don't remember which was clean and which was dirty.

Chem_Mod
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Re: Clean Coal vs Dirty Coal?

Postby Chem_Mod » Mon Nov 25, 2019 3:20 pm

Clean coal has higher carbon content and lower sulfur content, so it produces less SO2 on burning whereas dirty coal has higher sulfur content and lower carbon content.

Yuri Lin 4H
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Re: Clean Coal vs Dirty Coal?

Postby Yuri Lin 4H » Mon Nov 25, 2019 3:21 pm

Clean coal is the one with low sulfur content and high carbon content, and dirty coal has a higher sulfur content. A good way to remember is that sulfur contributes to acid rain, so having less sulfur means "cleaner" emissions.

Grecia Velasco 4D
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Re: Clean Coal vs Dirty Coal?

Postby Grecia Velasco 4D » Mon Nov 25, 2019 3:23 pm

BeylemZ-4A wrote:can someone explain the difference between clean coal and dirty coal? I remember it being explained in the lecture in terms of Carbon of Sulfur dominant, but I don't remember which was clean and which was dirty.


Clean coal has lower sulfur content but both clean and dirty produce CO2.

Cooper Baddley 1F
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Re: Clean Coal vs Dirty Coal?

Postby Cooper Baddley 1F » Mon Nov 25, 2019 4:08 pm

Dirty coal has more sulfur which then leads to acid rain vs clean coal which contains much less sulfur and contributes to acid rain less.

AngieGarcia_4F
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Re: Clean Coal vs Dirty Coal?

Postby AngieGarcia_4F » Mon Nov 25, 2019 4:10 pm

Clean coal contains more carbon and less sulfur meaning it is better or "cleaner" for the environment whereas dirty coal is the opposite.

Kallista McCarty 1C
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Re: Clean Coal vs Dirty Coal?

Postby Kallista McCarty 1C » Mon Nov 25, 2019 4:26 pm

Clean coal has a lower sulfur content than dirty coal.

xenamclean_1G
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Re: Clean Coal vs Dirty Coal?

Postby xenamclean_1G » Mon Nov 25, 2019 4:31 pm

I think he explained it as clean coal having lower sulfur content, but higher carbon content and vice versa for dirty coal. The clean coal produces less SO2.

Jamie Hwang 2F
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Re: Clean Coal vs Dirty Coal?

Postby Jamie Hwang 2F » Sat Nov 30, 2019 12:11 am

Clean coal has a lower sulfur content than dirty coal does.

RobertXu_2J
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Re: Clean Coal vs Dirty Coal?

Postby RobertXu_2J » Sat Nov 30, 2019 12:18 am

The "clean"-ness of a coal refers to how high the carbon content is compared to sulfur content. If the coal has a really high carbon content and very low sulfur content, than it is "clean", whereas if it has a high sulfur content, then it is dirty coal

Joowon Seo 3A
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Re: Clean Coal vs Dirty Coal?

Postby Joowon Seo 3A » Sat Nov 30, 2019 1:09 pm

Dirty coal has more sulfur in it. So when it burns it releases more SO2 than clean coal

Drake Choi_1I
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Re: Clean Coal vs Dirty Coal?

Postby Drake Choi_1I » Sat Nov 30, 2019 2:24 pm

I believe Dr. Lavelle said that dirty coal has a higher sulfur content than clean coal

Nicholas_Gladkov_2J
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Re: Clean Coal vs Dirty Coal?

Postby Nicholas_Gladkov_2J » Sat Nov 30, 2019 5:13 pm

BeylemZ-4A wrote:can someone explain the difference between clean coal and dirty coal? I remember it being explained in the lecture in terms of Carbon of Sulfur dominant, but I don't remember which was clean and which was dirty.


The difference between clean coal and dirty coal is the amount of sulfur content in the coal. When coal burns it releases sulfur dioxide which can react with water vapor to for acid rain. So, clean coal attepts do decrease the sulfur content of the coal to prevent such emissions.

NRodgers_1C
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Re: Clean Coal vs Dirty Coal?

Postby NRodgers_1C » Sat Nov 30, 2019 7:11 pm

I know for the final Dr. Lavelle recommended we work through the acid rain examples in textbook. Does anyone which section of the book this is in? I haven't been able to find it.

William Chan 1D
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Re: Clean Coal vs Dirty Coal?

Postby William Chan 1D » Sun Dec 01, 2019 10:52 am

I think it's based on the sulfur content. The higher the sulfur content of the coal, the "dirtier" it is because, when burned, it'll react with the air to create acid rain.

Juana Abana 1G
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Re: Clean Coal vs Dirty Coal?

Postby Juana Abana 1G » Sun Dec 01, 2019 9:43 pm

Clean coal has less sulfur which contributes less to acid rain.

MKearney_4G
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Re: Clean Coal vs Dirty Coal?

Postby MKearney_4G » Sun Dec 01, 2019 11:35 pm

Coal is graded based on carbon-noncarbon content. Anthracite coal is considered "Clean" and has 92-98% Carbon content, whereas bituminous, sub-bituminous, and lignite coal have increasingly high impurity. Burning lower C-content coals (like lignite) would release a LOT of non-carbon into the air, including sulfur, which makes it "dirty".


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