Chemical Composition of Different Types of Coal

Toooooo easy!

Work you way up from here:

Lignite

You'll manage the rest!

Where have you looked so far?

Maybe Wiki can help you. Have you looked there?

It should be a simple matter to research each type of coal to find the answer.

Get a pencil and a piece of paper and start writing down the chemical composition of same. You can spell each type of coal, so searching should be easy.

Just type them into a search engine and write down the composition.

It's not rocket science.

Don't ask us to do your work for you.

You'll have to realise that there is no exact composition.

I gave you the same answer that Lyn did. WIKI is your friend. Start getting it together instead of complaining here. There will be a range of Carbon for every single bit of coal.

To take criticism is probably one of the hardest in live, but you better get over it since it keeps you from what you really need to do.

If you know how to use a pencil then so what. Somebody tells you the traffic light is green it probably is.

Atleast!

IdeaSmith has come closest to stating the axiomatic truth here.

Although wiki and other resources will publish ("average/typical") figures, you simply cannot state that each-and-every shovel-full (or train-car-load) of any type of coal contains a homogenous mixture of the exact same constituents (and thus, different energy potential).

My reference for this statement was posted (on CR4) long-ago here.

So, the expectation is that CR4 readers have knowledge rather than signposts? How on earth did that mistake happen?

Once you have a draft you can send it to us so we can check that you did the right thing! It will be interesting to see how our advice is being put to good use!

Well, Kempe's Engineers' Yearbook, and Perry, "The Chemical Engineer's Handbook", any edition of either, would be a good starting point as all the information needed is listed therein.

Remember books made from paper? These particular apps contain information that cannot be found on the world wide wait and don't need electricity like telephones and computers.

Ah, here it was! Seen this! Almost an universal post!

Knowing where to look it up is as valuable as knowing what 2 x 2 is.

I just checked, Wiki has all the chemical compositions of the different coals... Imagine that.

To-day CR4 is shrinking because the new comers are being criticised by the seniors. I feel we should not make any nasty comments for any questions being asked even if they are too basic and can be solved through help of Wiki, Goggles etc.

Thanks a lot Mr. Suresh. I've been facing such problem from say 4 days back. My comments are taken negatively & is highlighted by everyone out here. I humbly asked one question for which I received an answer, not expected by me. Rather, I was replied, your question could be answered by a Teacher of fifth grade or fifth class. Is it any way to answer someone.? When I replied accordingly, I was criticized by many. Rather than getting an answer for the question, I got criticized many-a-times. Such are the people. If I could get everything merely by googling or reading WIKI, whats the use of creating such forums then.??

Monish, dont be emotional and continue to ask your questions, ignore if you get nasty comments. There are some other Gurus who will definitely solve your problems. Could you get the information you asked for?.

If I could get everything merely by googling or reading WIKI, whats the use of creating such forums then.??

I'd have thought the answer was obvious. Ths forum is happy to help solve problems, which you can't get from Wiki. But we're not keen on being asked to supply facts, which are readily available from Wiki or other sites.

Did you answer his question? NO!

Did you help him in any way? NO!

Did you see any actual criticism in this thread? NO!

What have you accomplished with your arrogant remarks? NOTHING!

You admonish some people because they can see that some posters here do not bother to perform even the slightest, most cursory search before asking questions THAT COULD BE ANSWERED BY A 10 SECOND SEARCH OF THE INTERNET.

This is a place for engineers discussions, not a place that spoon feeds elementary information to those too lazy to search for themselves.

Please feel free to answer the question about coal first, then you can preach to those of us who are being mean to the OP.

JPool,

Good point. Thanks for taking the time to research this for the OP.

I think most of us who are regulars here do, from time to time, get frustrated by the repeated requests for help with elementary questions from repeat users of the site. These users usaully get the information they want, even though 75% of the time the question can be readily answered by simply typing the thread title into a search engine. Try it some time.

I still believe that, in real life, school or in the workplace, if these same rudimentary questions were posed, the response would not be too different from their co-workers, or fellow students than what they encounted here.

Cheers.

Lyn, I couldn't agree with you more, especially this particular post. OP was repeated informed that info was easily obtainable on web yet instead of looking for himself, this thread became a whine-fest. Even though I posted what I believe are the correct answers for his questions, I could not do it without showing my own frustration by being sarcastic in my post. Reminds me of being in downtown Detroit last weekend, seeing an able bodied individual standing in front of a help wanted sign (no experience necessary) with a milk jug collecting change. Sad, can't help those who can't help themselves.

After my answer, think I'll get a thank you for the info from OP?

Thanks would be nice. Sometimes it happens.

Unfortunately, many people are under the impression that we are somehow obligated to help them, so why bother to even thank us.

Thank you for taking the time to put this together.

You have done this forum a great favour because anyone else with that same question googling in the internet will now have a reference and is one step ahead.

Sometimes I think we should have a third option in the "got something to say" section:

The "I found out that" or "just to let you know" or "problem solved" part.

OP instead of whining about that he needs this and this could have easily assembled the information and posted it as "see what I have done for everyone! - Coal and its Chemical composition!"

He would look so much greater and could saved helped himself and other the trouble.

Thank you JPool for your kindness, dignity and this great contribution!

Thanks JPool, Monish I was right when I said some one here will help you instead of demoralising you with their nasty comments. Please say thanks to JPool who has got you information.

You should edit the list: Include (1) dirt, and (2) sub-peat (new word?), because some of what passes for coal is really just high carbon content dirt. As others on this blog have stated, there are no "standard" values for coal in any class. The carbon content will be in a range for each classification, as well as sulfur, nitrogen, mercury, lead, etc. This is why each plant is a unique situation based on the source(s) of the coal, the power requirements, pollution abatement, etc.