Abu Dhabi Gas Development Co (Al Hosn Gas) has awarded Ametek Process Instruments an estimated $4.6m contract to supply UV process gas analysers for the Sulphur Recovery Units (SRU) and Tail Gas Treating Units (TGTU) at its Shah gas field in Abu Dhabi. Upon completion, the SRU-TGTU complex is expected to be the largest in the world. Each of the SRU's four processing trains is so large that it will require twin reaction furnaces with three tail gas analysers per train, making the project the largest single order for tail gas analyzers ever.