|Analysis of LPG and other liquefied gases
|Mr Tom Gallant
|ECH Elektrochemie Halle
Abstract Information :
Understand how and why to test your LPG and other liquefied gases samples. ECH Elektrochemie Halle supports customers involved with the production, storage and distribution of Liquified Petroleum Gases LPG products. ECH have developed several instruments designed specifically for the determination of parameters of LPG products according to methods listed in ASTM, UOP, and other industry accepted standards. Initial topic will be regarding ASTM D7995 which is the standard Test Method for Total Water in Liquid Butane by Liquefied Gas Sampler and Coulometric Karl Fischer Titration. Recent advances have been made in adapting coulometric Karl Fischer titration to analyse the water content in problematic samples such as LPG and LNG. Globally, coulometric Karl Fischer titration is recognised as the leading method of water content determination due to its greater sensitivity and ability to analyse both free and dissolved water. Further topics include the quantitative determination of individual hydrocarbons in liquefied petroleum gases and mixtures of propane and propene according to ASTM 2613 and the measurement of hydrogen sulfide H2S, mercaptan sulfur RSH and carbonyl sulfide COS in gaseous hydrocarbons and in typical liquefied petroleum gas LPG consisting of C3 andor C4 hydrocarbons conforming to UOP 163.