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Gas Analyzer Technology Boosts Potential For Converting Biogas To Electric Power

The ability of advanced, laser-based sensors to detect moisture, hydrogen sulfide and other contaminants in gases can smooth the way for biogas as a resource for electric utilities.   Wouldn’t it be great if some of the expensive green power programs you hear about actually worked? Experts and financiers are predicting it will take billions of investment dollars and decades to get any meaningful quantity of energy from alternative resources.   Perhaps not. One of the oldest and most widespread forms of potential energy — methane gas — promises to give those efforts a sizable boost — right now.   The main component of “natural gas,” methane is found in abundance in many places other than subterranean gas wells. Landfills, oil pipelines, pasturelands, forests and waste treatment plants all contain methane or the biomass from which methane can be formed. …


Improve process control in gas plants using tunable diode laser spectroscopy

Tunable diode laser (TDL)-based analyzers (Fig. 1) are increasingly being used in these “pain-point” analytical applications to measure contaminants reliably while reducing maintenance and operating costs.   TDL absorption spectroscopy uses a laser mounted behind a window that protects it from the wear and tear of caustic gas contents while enabling the analyzer to accurately and quickly read varying gas concentrations. The laser does not come into contact with the gas and calibration does not change or drift over time.   Dependable H2O analysis. Impurities, such as H2O and corrosive acids found in many gas streams, are the nemesis of conventional sensors that are directly exposed to the gas stream and those harmful elements.  Over time—and sometimes within a few weeks—those probes become damaged and inaccurate, resulting in costly repair or replacement. In the meantime, corrosion and contamination from problematic …