Sour gas - natural gas or any other gas having high amounts of hydrogen sulfide (H2S)

Q.  Sour Gas is
- Published on 16 Sep 16

a. Gas with high amount of hydrogen sulphide
b. Gas with high amount of Carbon Dioxide
c. Gas with high amount of acidic gases
d. Gas with significant amount of Nitrogen dioxide

ANSWER: Gas with high amount of hydrogen sulphide
 
Sour gas - natural gas or any other gas having high amounts of hydrogen sulfide (H<sub>2</sub>S)
  • Sour gas is natural gas or any other gas containing significant amounts of hydrogen sulfide (H2S).
  • When natural gas contains high levels of acidic gases such as hydrogen sulfide, it is referred to as acid gas. If it contains high levels of sulfur, it is referred as sour 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.

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