Sour gas refers to natural gas found in gas fields that contains high concentrations of hydrogen sulfide (H2S), typically exceeding 4 parts per million by volume at standard temperature and pressure, or a mixture of hydrogen sulfide and carbon dioxide (CO2). Gas primarily composed of CO2 is commonly known as "acid gas." When economically feasible, sour and acid gases can be extracted and purified using methods like amine gas treatment to eliminate undesirable impurities, resulting in high-quality pipeline gas, often referred to as sweet gas. This sweet gas is suitable for various applications, including use as a clean fuel source or for power generation.
Measuring moisture in sour gas to reduce operational and safety risks
30 October 2023
Sour gas can be used in a number of applications, including power generation and the manufacture of fertilizers. For process efficiency, quality and safety, it is crucial that the moisture content of the sour gas is measured accurately. There are various instruments that can be used to measure moisture in sour gas, such as the OptiPEAK TDL600 from Michell Instruments, which is based on tunable diode laser absorption spectroscopy (TDLAS).
