The terms acid gas and sour gas are often incorrectly treated as synonyms. Strictly speaking, a sour gas is any gas that specifically contains hydrogen sulfide in significant amounts; 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 but not a sour gas.
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Other articles related to "acid gas, gas, acid, acids":
... Before a raw natural gas containing hydrogen sulfide and/or carbon dioxide can be used, the raw gas must be treated to reduce impurities to acceptable ... sulfur in a Claus process or alternatively converted to valuable sulfuric acid in a WSA Process unit ... Processes within oil refineries or natural gas processing plants that remove mercaptans and/or hydrogen sulfide are commonly referred to as sweetening processes ...
... 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 ... For instance, the Texas Railroad Commission considers a sour gas pipeline one that carries gas over 100 ppm by volume of H2S ...
... Joseph Priestley had observed its production by reacting strong acids with metals ... Scheele Obtained it from hydrochloric acid, but thought it was an oxide ... The Elhuyars obtained tungstic acid from wolframite and reduced it with charcoal ...
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