A new white paper, Advances in Optical Techniques for Moisture and Hydrocarbon Detection by Michell Instruments discusses how new optical sensing techniques for processing natural gas will help the industry face current challenges.
While newly emerging gas sources such as shale gas and biogas are helping to meeting the worldwide demand for natural gas, they also present new challenges to the processing industry. Though all raw natural gas sources vary in composition at the time of extraction, these new sources vary much more rapidly and over more extreme ranges.
Wellhead gas mainly contains methane as well as lesser amounts of other hydrocarbons such as propane, butane and some heavy hydrocarbons along with varying quantities of contaminants including water, nitrogen, hydrogen sulphide and carbon dioxide. Shale gas in particular, can have far greater dynamic variation in its constituent hydrocarbon composition, and also often contains far higher levels of contaminants such as CO2 and water than natural gas originating from other sources.
The processing industry is therefore, presented with the challenge of treating these different compositions of raw gas to meet the same international standards before it is injected into the transmission pipeline. Michell’s white paper discusses how increased sensitivity in detection limits in optical sensing methods including both chilled mirror for hydrocarbon dew point and laser spectroscopy for moisture measurements, will help processors to meet the guidelines.
Michell Instruments is represented in Australia by AMS Instrumentation and Calibration .