Talk:Natural-gas processing

Ash residue in natural gas?

Does natural gas have ash residue? 172.132.238.88 01:00, 1 February 2007 (UTC)

The purified natural gas (i.e., after being through the gas processing plant) produces no ash residue when it burns.

The raw natural gas as it comes out of the ground might possibly produce a very small amount of ash residue when it burns if the raw gas contains any associated heavy (high-molecular weight) hydrocarbons. - mbeychok 02:23, 1 February 2007 (UTC)

U of Calgary link does not appear to be working

External link to U of Calgary course leads to a 1 page PDF. The meaningful content, linked from that document, appears to no longer be available. Mrweatherbee 19:11, 6 February 2007 (UTC)

It is now 11:45 AM, Pacific Standard Time, Feb. 6, 2007, and the four links (on that PDF page) to further useful content are working fine for me. Would you check again? Perhaps it was only a transient problem or perhaps it was a problem with your browser? - mbeychok 19:50, 6 February 2007 (UTC)

external links

all external links are not working! —Preceding unsigned comment added by 212.76.66.233 (talk) 10:20, 8 September 2008 (UTC)

definition of NGL is wrong

Background, para 2, says C2 - C8 hydrocarbons turn to gases at normal pressures, hence called condensates. This is wrong. In the ground, at high temperatures and pressures, these hydrocarbons exist as super-critical fluids, not liquids. When released to atmospheric pressure, while still hot they will be gases, but as they cool to ambient temperatures, the C5 - C8 hydrocarbons will condense to liquids, hence condensates. The C2 - C4 (ethane, propane and butane) are gases at normal temperature and pressure. Propane and Butane can be liquefied at 10 atmospheres and are called Natural Gas Plant Liquids (NGPLs). DaveKimble (talk) 04:55, 1 June 2011 (UTC)

I would appreciate an article on NLGs. I might try it later on, but I am faaar from the ideal person to do this. -Theanphibian ^{(talk • contribs)} 19:58, 30 June 2011 (UTC)

Poor edit quality

I just changed a sentence in the article that stated the OPPOSITE of what the reference cited stated> The wiki article: "Although these hydrocarbons exist in a liquid state at underground pressures, they will become gaseous at normal atmospheric pressure.", while the reference: "Although they exist in a gaseous state at underground pressures, these molecules will become liquid (condense) at normal atmospheric pressure." 146.23.65.198 (talk) 19:24, 18 July 2013 (UTC) 146.23.65.198 (talk) 19:26, 18 July 2013 (UTC)

The normal atmospheric boiling points of methane, ethane, propane, n-butane and n-pentane are -258 °F, -127 °F, -44 °F, +31 °F and +97 °F respectively (all rounded to the nearest digit). Thus, methane, ethane and propane simply cannot be liquids at atmospheric pressure and normal ambient temperatures ... they require extensive refrigeration to be condensed into liquids at atmospheric pressure. However, butane could be a liquid on a very cold winter day since it must only be below 31 °F to be a liquid at normal atmospheric pressure. Pentane could also be a liquid at normal atmospheric pressure even on a hot summer day because its atmospheric boiling point is 97 °F.

The sentence before your edit and reference number 2 are indeed at odds with each other as you have pointed out. They are both very poorly written because neither of them discusses the fact that some of the NGLs cannot exist as liquids at normal atmospheric pressure and normal ambient temperatures. Your edit also fails to mention that point. For that reason, I have changed your edited sentence to read: "When brought to the surface and processed into purified, finished by-products, all of these are collectively referred to NGL (Natural Gas Liquids)." That avoids having to go into detail about the boiling points of the various NGLs. As a matter of interest, back in January of 2007 when I first created the article, I wrote that sentences as "When processed and purified into finished by-products, all of these are collectively referred to NGL (Natural Gas Liquids)." Thanks for picking up this point. mbeychok (talk) 22:33, 18 July 2013 (UTC)

I agree with your analysis. Thanks for an otherwise informative article!

146.23.65.198 (talk) —Preceding undated comment added 21:27, 24 July 2013 (UTC)

Recovery of Sulfuric Acid

This statement is not correct: "...whereas the conventional Contact process and the WSA (Wet sulfuric acid process) are the most used technologies for recovering sulfuric acid."

These processes are used to convert sulfur into sulfuric acid, not recover sulfuric acid from a natural gas stream. — Preceding unsigned comment added by 138.103.17.19 (talk) 22:13, 17 July 2014 (UTC)

Vanishing CO2

One of the most significant volumes of adulterant in natural gas is CO2 which seems to disappear in this article. Its disposition could be mentioned, as it is of some concern and is certainly a major part of the refining.Mydogtrouble (talk) 18:41, 27 August 2017 (UTC)

External links modified (February 2018)

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I have just modified 6 external links on Natural-gas processing. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

• Added archive https://web.archive.org/web/20070224110924/http://www.ipt.ntnu.no/~jsg/undervisning/naturgass/parlaktuna/Chap7.pdf to http://www.ipt.ntnu.no/~jsg/undervisning/naturgass/parlaktuna/Chap7.pdf
• Added archive https://web.archive.org/web/20110304003407/http://www.eia.doe.gov/pub/oil_gas/natural_gas/feature_articles/2006/ngprocess/ngprocess.pdf to http://www.eia.doe.gov/pub/oil_gas/natural_gas/feature_articles/2006/ngprocess/ngprocess.pdf
• Added archive https://web.archive.org/web/20101201015907/http://uop.com/gasprocessing/6070.html to http://www.uop.com/gasprocessing/6070.html
• Added archive https://www.webcitation.org/5nhzCYCzS?url=http://www.axens.net/upload/presentations/fichier/axens_gpagcc_2004v2.pdf to http://www.axens.net/upload/presentations/fichier/axens_gpagcc_2004v2.pdf
• Added archive https://web.archive.org/web/20130626080757/http://lnglicensing.conocophillips.com/EN/publications/documents/AICHELNGNGLIntegrationPaper.pdf to http://lnglicensing.conocophillips.com/EN/publications/documents/AICHELNGNGLIntegrationPaper.pdf
• Added archive https://web.archive.org/web/20110101053431/http://naturalgas.org/naturalgas/processing_ng.asp to http://www.naturalgas.org/naturalgas/processing_ng.asp

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Move

This should be Natural gas processing without the hypen 94.99.213.251 (talk) 17:19, 23 March 2018 (UTC)

Additional Paper on Helium Recovery in need of Sorting

I am relatively new to edits, and this seems to be a well made page so i don't want to mess with it too much, but i came across this paper on a novel method of recovering Helium from Natural Gas with sub 0.3% Helium Content

https://www.academia.edu/36023749/HELIUM_RECOVERY_FROM_SALES_GAS_Helium_Recovery_using_integrated_NGL_NRU_HRU_technologies-Barzan_Project

Also cross comparing with Petrowiki may be of use for information — Preceding unsigned comment added by Eric Lotze (talk • contribs) 17:05, 5 February 2022 (UTC)