Talk:Amine gas treating/Draft

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This article came from Wikipedia

I was not the original creator of the Wikipedia article of the same name but, as a Wikipedian, I rewrote about 95% or more of it, added a flow diagram that I drew, and expanded the article.

I have uploaded exactly it as it now exists on Wikipedia, but will now proceed to clean it up, do some rewording and what ever else is needed to make it suitable for Citizendium. This may take me a few hours. - Milton Beychok 15:29, 7 February 2008 (CST)

Milton, could undo the bold of "absorber" and "regenerator", and make them in italics instead for emphasis? I have nominated the article for approval, and will naturally support it if those two changes are made (note for the constables). David E. Volk 13:36, 28 April 2008 (CDT)

David, I made those changes plus changing a few other places where I used bolding instead of italics. Thanks, Milton Beychok 14:18, 28 April 2008 (CDT)

One more item

Milton, could you add what the compounds formed are, ie [NH4]⁺SH^-, or whatever? David E. Volk 13:38, 28 April 2008 (CDT)

Dave, I have done so. Also added a reference to the classic book "Gas Purification" for those who may want to dig into the chemistry and the process more deeply. - Milton Beychok 15:43, 28 April 2008 (CDT)

Approval status

Just stopped by to check. There are about 5 edits that were made after the date on the ToApproval template. Do these need to be included? If so, don't forget to update the version on the template. See ya tonight (my time!) --D. Matt Innis 07:28, 12 May 2008 (CDT)

The article is ok as is, but

I would like to see the terms Acid gas removal and Gas sweetening lose their capital letters on the first word. David E. Volk 14:06, 12 May 2008 (CDT)

Done. - Milton Beychok 17:08, 12 May 2008 (CDT)

APPROVED Version 1.0

Done. Good collaboration to get this one finished! --D. Matt Innis 23:11, 12 May 2008 (CDT)

Discussion for Version 1.0 stopped here. Please continue further discussion under this break.

Comments by Wim Van Wassenhove

I asked Wim Van Wassenhove to review this article and offer his comments, which he has done by email. Here are his comments (somewhat shortened):

You might want to add that:
(1) Typical amine solution contains around 30% of amine in water.
(2) The choice of the type of amine will affect the required circulation rate of amine, the energy consumption for the regeneration and selectivity.
(3) Amines absorb both H2S and CO2 and when it is only important to remove the H2S, the proper choice of amine concentration and composition will allow you to do that. Another possibility is the use of a so called activator such as Piperazine mixed with MDEA.
(4) In the "New amine-based materials for gas processing" section, I find the units "pounds of amine per ton of CO2 captured" a bit of a weird SI/Field unit hybrid.

Wim also suggested that I mention the use of amines for CO₂ capture from power plant flue gas stacks.

In general, I agree with all his comments and I will revise the article in response to his suggestions just as soon as I can ... perhaps tomorrow. Thanks, Wim. Milton Beychok 03:21, 28 August 2009 (UTC)

I just finished implementing the above suggestions by Wim Van Wassenhove. Milton Beychok 19:13, 28 August 2009 (UTC)

Draft approval corrections

Milt, sorry for the delay in looking at this. Two things:

1) The following is not a real sentence, one or more words is missing at XXXXXX:

"The amine concentration in the absorbent solution is an important parameter in the design and operation of an amine gas treating process. Some typical concentrations for XXXXXXXXXXX (in weight percent) are"

2) Since the minimal or "about" wt percentages add up to 150% or more, does this mean only one amine is used at once, or possibly a few of them, as opposed to the each chemical being used all of the time? David E. Volk 01:48, 16 September 2009 (UTC)

Hi, David: I have fixed my very poor wording in response to your comments. I hope that it is now more understandable. Milton Beychok 04:55, 16 September 2009 (UTC)

Hello Milt. The chances are nice. I was wondering if you might also add a sentence to explain why the removal of two gases (H2S and CO2) requires less amine that the removal of only one gas? David E. Volk 18:58, 19 September 2009 (UTC)

David, I have added a paragraph to explain the factors involved in selecting the amine concentration in the circulating solution. As you will note in what I added, the choice of solution concentration is quite often made arbitrarily based on experience. However, I have done my best to answer your question and I have referred the reader to Kohl and Nielson's book for more information.

Just as a bit of trivia, Art Kohl was one of the originators of the amine treating process when he worked at the Fluor Engineering & Construction Company in about 1940-1955 which is where I met him when I worked for Fluor in that same time frame. Milton Beychok 21:04, 19 September 2009 (UTC)