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- Q3536673 subject Q6156564.
- Q3536673 abstract "Sour gas is natural gas or any other gas containing significant amounts of hydrogen sulfide (H2S). Natural gas is usually considered sour if there are more than 5.7 milligrams of H2S per cubic meter of natural gas, which is equivalent to approximately 4 ppm by volume under standard temperature and pressure. However, this threshold varies by country, state, or even agency or application. For instance, the Texas Railroad Commission considers a sour gas pipeline one that carries gas over 100 ppm by volume of H2S. However, the Texas Commission on Environmental Quality has historically defined sour gas for upstream operations – which requires permitting, reporting, and possibly additional emission controls – as gas that contains more than 24 ppm by volume. Natural gas that does not contain significant amounts of hydrogen sulfide is called "sweet gas."Although the terms acid gas and sour gas are sometimes used interchangeably, strictly speaking, a sour gas is any gas that specifically contains hydrogen sulfide in significant amounts, whereas an acid gas is any gas that contains significant amounts of acidic gases such as carbon dioxide (CO2) or hydrogen sulfide. Thus, carbon dioxide by itself is an acid gas, not a sour gas. In addition to being toxic, hydrogen sulfide in the presence of water also damages piping and other equipment handling sour gas by sulfide stress cracking. Natural gas typically contains several ppm of volatile sulfur compounds, but gas from one well in Canada is known to contain 90% hydrogen sulfide and others may have H2S contents in the tens of percent range.".
- Q3536673 wikiPageWikiLink Q11158.
- Q3536673 wikiPageWikiLink Q11570.
- Q3536673 wikiPageWikiLink Q16.
- Q3536673 wikiPageWikiLink Q1647484.
- Q3536673 wikiPageWikiLink Q170591.
- Q3536673 wikiPageWikiLink Q1997.
- Q3536673 wikiPageWikiLink Q2135839.
- Q3536673 wikiPageWikiLink Q214261.
- Q3536673 wikiPageWikiLink Q220410.
- Q3536673 wikiPageWikiLink Q2287558.
- Q3536673 wikiPageWikiLink Q2542096.
- Q3536673 wikiPageWikiLink Q27084.
- Q3536673 wikiPageWikiLink Q3679502.
- Q3536673 wikiPageWikiLink Q40858.
- Q3536673 wikiPageWikiLink Q4118.
- Q3536673 wikiPageWikiLink Q412371.
- Q3536673 wikiPageWikiLink Q422785.
- Q3536673 wikiPageWikiLink Q4354355.
- Q3536673 wikiPageWikiLink Q6156564.
- Q3536673 wikiPageWikiLink Q682.
- Q3536673 wikiPageWikiLink Q7447953.
- Q3536673 wikiPageWikiLink Q7636198.
- Q3536673 wikiPageWikiLink Q7707592.
- Q3536673 wikiPageWikiLink Q905970.
- Q3536673 wikiPageWikiLink Q908616.
- Q3536673 comment "Sour gas is natural gas or any other gas containing significant amounts of hydrogen sulfide (H2S). Natural gas is usually considered sour if there are more than 5.7 milligrams of H2S per cubic meter of natural gas, which is equivalent to approximately 4 ppm by volume under standard temperature and pressure. However, this threshold varies by country, state, or even agency or application.".
- Q3536673 label "Sour gas".