scholarly journals Use and Calibration of a Gas Chromatograph for Gas Analysis at the Project Rover Test Facility

1964 ◽  
pp. 430-436 ◽  
Author(s):  
D. H. Liebenberg ◽  
F. J. Edeskuty
Keyword(s):  
Gas Analysis ◽  
Test Facility ◽  
Gas Chromatograph

30am2-C-7 Portable Gas Chromatograph for Breath Gas Analysis

2015 ◽  
Vol 2015.7 (0) ◽  
pp. _30am2-C-7-_30am2-C-7
Author(s):  
Yasuhiro Setoguchi ◽  
Toshio Itoh ◽  
Toshio Miwa ◽  
Woosuck Shin
Keyword(s):  
Gas Analysis ◽  
Gas Chromatograph ◽  
Breath Gas Analysis ◽  
Portable Gas Chromatograph

Effect of Trace Contaminants on PEM Fuel Cell Performance

2005 ◽  
Vol 885 ◽  
Author(s):  
Tony Thampan ◽  
Rick Rocheleau ◽  
Keith Bethune ◽  
Douglas Wheeler
Keyword(s):  
Carbon Monoxide ◽  
Fuel Cell ◽  
Strong Dependence ◽  
Pem Fuel Cells ◽  
Gas Analysis ◽  
Operating Conditions ◽  
Test Facility ◽  
Systematic Evaluation ◽  
Fuel Cell Performance ◽  
The Impact

ABSTRACTAt the Hawaii Fuel Cell Test Facility a systematic evaluation of the impact of impurities in hydrogen is underway to evaluate the effects on the performance of PEM fuel cells. Initial tests are being conducted using carbon monoxide and hydrocarbon contaminants. The effects of carbon monoxide poisons at atmospheric and pressurized operating conditions have shown a strong dependence on concentration of the impurity over the range 6.7 µmole/mole to 29.3 µmole/mole. Additionally, benzene and toluene were tested at 20 µmole/mole. Although both benzene and toluene showed no evidence of fuel cell degradation, on-line gas analysis of the exit anode stream showed that toluene hydrogenation occurs in the anode resulting in 90% conversion of the toluene to methyl-cyclohexane.

scholarly journals Fast Sampling Field Deployable Mud Gas Carbon Isotope Analyzer

Geosciences ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 350
Author(s):  
Sheng Wu ◽  
Andrei Deev ◽  
Yan Zhuang ◽  
Le Lu ◽  
Zhengyou Wang ◽  
...  
Keyword(s):  
Carbon Isotope ◽  
Isotope Ratio ◽  
Gas Analysis ◽  
Gas Chromatograph ◽  
Hollow Waveguide ◽  
Mid Infrared ◽  
Temperature Changes ◽  
Quantum Cascade ◽  
Field Temperature ◽  
Infrared Spectrometer

We report the details of a field deployable mud gas carbon isotope analyzer for mud gas analysis based on coupling a gas chromatograph with a mid-infrared spectrometer using a quantum cascade laser and hollow waveguide. The GC–IR2 (gas chromatograph–infrared isotope ratio) system features a fast sampling cycle as short as 123 s for analyzing all three components, i.e., methane, ethane and propane. The samples are automatically diluted so the system could carry out effective measurements while sample concentrations vary from 400 ppm to 100% purity. The accuracy is guaranteed through periodic reference calibration, and variations due to field temperature changes are minimized.

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