Duty: To measure the concentration of H2S in a process liquid stream, including the measurement of H2S in crude oil.
The principle of operation is as follows. The Analyser consists of a stripping system coupled with a NovaSulf H2S Analyser. The liquid sample enters the top of an insulated, heated sample handling cabinet via a flow controller to maintain a constant sample flow. Nitrogen flows down a vertical tube to a sintered plug located within the liquid and then flows up through the liquid. As the nitrogen mixes with the liquid hydrocarbons it strips out the dissolved H2S in the liquid.
The degassed liquid falls into a reservoir and then to the drain. At the same time, the nitrogen containing H2S in proportion to that in the original liquid is piped directly to the NovaSulfTM HG 400 series H2S Analyser to be measured.
With its wide-ranging ability to measure H2S from % levels down to ppb levels, the HG400 range of H2S process analysers can be utilised in many process industries, including the measurement of dissolved H2S in crude oil