Product Overview
H2S in Crude Oil Analyzer | The ability to analytically quantify H2S in light, medium & heavy crude oil and condensate is enhanced with the Sample Transfer Stripper (STS) utilizing exclusive ASI Membrane Technologies and rateometric-colorimetric detection technology offered by Analytical Systems Keco. This principle of operation is described in various ASTM methods including D4084-82, D4468-85, and D4045-81. Benefits include:
No false high positives. The only detection method truly specific to H2S only, proven by thousands of applications
Ultra low-maintenance. Advanced Colorimetric-Rateometric Detector is guaranteed hassle-free for long term “hands-free” operation
Dependable operation. ASI Membrane Technology eliminates liquid carry-over that plagues the antiquated and problematic headspace sampling systems
No field calibrations. The analyzer does not require calibrations in the field based on exclusive ASI technologies–even with unexpected process changes, no calibrations are required
Precise measurement. The only technology capable of precise ultra-low ppb and ppm level analysis
The effective process for measuring H2S in crude oil involves representatively stripping the H2S vapor from the liquid for precise measurement in the gas phase. The problematic and complicated ‘headspace’ stripping column, which often suffers from liquid carry-over, is not required for this separation. ASI utilizes the state-of-the-art Sample Transfer Stripper (STS) with exclusive ASI Membrane Technologies to efficiently and reliably separate the H2S from the liquid sample for measurement. The STS is a very simple device that provides an ultra-clean and dry sample to the detector for analysis. The STS uses 90% fewer parts than the complicated ‘headspace’ stripping column method. This results in radically reduced maintenance requirements when compared to the headspace stripping column method and also enhances analytical reliability. ASI is established as the world-wide leader in H2S in Crude analysis due to the many benefits of this exclusive technology.
The principle of operation is based on a continuous, free-flowing liquid sample into the heated Sample Transfer Stripper (STS) unit which separates the liquids from the H2S gas sample, based in part on Henry’s Law. H2S free carrier air then sweeps the H2S sample to the H2S specific detector for quantitative analysis in ppb, ppm, or percent levels. The analyzer does not require zero or span field calibrations. The detection technology is based on chemically specific density changes. and is the only detection method that is specific only to H2S. The analyzer holds its calibration even when faced with process changes and does not require calibrations in the field. Optical illumination & detection are integrated for maximum resolution and accuracy. Economic payout is increased because of this automated & continuous process analyzer. A laboratory version is also available. Patents and Patents Pending based on letters that are available on request.
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