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This link http://www.naturalgas.org/overview/history.asp contains some interesting facts about natural gas usage before the 18th century, by the Chinese. We could also use many other sources if there are. Also there can be section history for explaining that, perhaps even the beginning of its usage in America and Europe outlined more clearly. Worth mentioning the Bunsen burner? -Ugog Nizdast (talk) 13:54, 21 May 2013 (UTC)
Thanks for your feedback on my page EzPz. I have no objection to expansion of the point, it just seemed to me that the original was making an uninformative statement of the bleeding obvious. Ideally there should be a succinct statement of what chemical entity methane is oxidized by, and how this is formed and where it occurs. In the article Methane#Atmospheric methane the following is stated "atmosphere is naturally checked ...... by methane's reaction with hydroxyl radicals formed from singlet oxygen atoms and with water vapor". No statement of where, how formed. Atmospheric methane#Removal processes states ".. it reacts with the hydroxyl radical (·OH) in the troposphere or stratosphere to create the CH·3 radical and water vapor" and then after describing further stepwise breakdown of the molecule provides the overall reaction formula: CH4 + 2O2→ CO2 + 2H2O. I therefore suggest a highly-abbreviated form of this merged into the original sentence is all that is needed here, such as:
"Natural gas is mainly composed of methane. After release to the atmosphere it is removed over about 10 years by gradual oxidation to carbon dioxide and water by hydroxyl radicals (·OH) formed in the troposphere or stratosphere, giving the overall chemical reaction CH4 + 2O2→ CO2 + 2H2O." Plantsurfer (talk) 22:22, 11 June 2013 (UTC)
As far as I'm concerned Plantsurfer , the suggestion is fine. I looked it up in my environmental chemistry text book and its spot on, too. There is much more to the process obviously, but that would be outside the scope of this article to input detailed chemistry. Also, if they don't have a reference in removed for the process we can use my text. It's 'Environmental Chemistry, 9th edition, published by CRC press, 2010, ISBN:978-1-4200-5920-5 by Stanley Manahan'. EzPz (talk) 01:46, 12 June 2013 (UTC)
An IP contributor added some interesting background for natural gas, but it isnt very well written and is in fact copied straight from http://www.naturalgas.org/overview/history.asp . I think it would be a nice addition to this article, but it needs some major work to make it suitable for wiki. I refrained from deleting it because of this, but I suspect someone else may delete anyway due to COPYVIO :/. It would be really awesome if someone could fix it (I would do it myself but its not really my strong suit). I suspect some bits also need more references (oracle of delphi being due to natural gas, for example) but I'm sure references for something that significant would be easy to find (assuming that the company isnt lying). Thanks, Benboy00 (talk) 01:53, 15 September 2013 (UTC)
I've removed the copyvio. You are welcome to use the link above and other sources to write a history section. However, copying directly from a website is not allowed. Vsmith (talk) 03:03, 15 September 2013 (UTC)
As I clearly said in the post above, I am aware of that. I was hoping that someone could fix instead of delete, but I guess that didnt happen. Benboy00 (talk) 10:01, 15 September 2013 (UTC)
Came here to find out about direct health effects caused by normal exposure. Not much help from what I find. I live in Colorado US where marijuana has been legalized and there is some debate over one technique using propane and natural gas to extract THC for multiple products. Perhaps there are some political games being played in this matter, but would enjoy having independent review. Have noted for instance that some proponents seem to think that "Fracked" Natural gas is fine for energy use in homes, but when used to extract THC can cause health issues from petrochemical actions in the lungs.Fracking is being done heavily here, and yes water tastes terrible now, but am primarily interested in actual gas. There is the danger of course from explosions when using gas under novice operations but that is not what I am asking. Does Natural Gas cause adverse health effects from inhalation even when Carbon Monoxide is not at dangerous levels? Thank You. 126.96.36.199 (talk) 17:35, 5 June 2014 (UTC)
The article states that CNG is more expensive than LPG. Is it correct? — Preceding unsigned comment added by 188.8.131.52 (talk) 16:55, 20 June 2014 (UTC)
Confusion of condensate and natural gas liquid
"Condensate" as the term is used in the oil industry is what condenses at the surface in an ambient temperature separator. It is basically C5+ (pentane and a bit higher). Can be mixed into gasoline, even in the summer. It's essentially very high API oil, both chemically and economically. Think of it as the "associated oil" from a gas well. The way you would have associated gas with an oil well.
NGLs are the non-methane gases within a natural gas separated stream. They do NOT condense at a surface separator. You need a refrigeration plant to condense them.
The article says, "One method to deal with this problem is to re-inject dried gas free of condensate to maintain the underground pressure and to allow re-evaporation and extraction of condensates. More frequently, the liquid condenses at the surface, and one of the tasks of the gas plant is to collect this condensate. The resulting liquid is called natural gas liquid (NGL) and has commercial value."
You are confusing NGL and condensate and they are not the same thing. Condensate is mostly C5+, recovered at the wellhead. NGL is mostly C2-C4 (ethane, propane, n-butane, isobutene). Recovered at a refrigeration plant, away from the wellhead. Look up the boiling point of ethane! It is not condensing at the wellhead surface. Just no.
Please, no arguments about how any gas can become a liquid with cooling or the converse...or about how refrigeration plants have condensers. You are not helping your public who may have a very reasonable suspicion that NGL=condensate, by confusing the terms in article. In contrast, the block diagram under natural gas processing chapter explains this right.