Development of a gas detector tube to measure dimethylsulfide in city gas based on liquefied natural gas

摘要

The odorant blend of tertiary butylmercaptan (TBM) and dimethylsulfide (DMS) is generally used as an odorant in city gas based on liquefied natural gas. The concentra- tions of both TBM and DMS in city gas are about 2 volppm. To control the quality of city gas, a simple method is required to determine the odorant concentration at the end of gas pipelines. This paper reports on the development of a gas detector tube which can measure the DMS concentration in city gas.