Detection of H2S, SO2 and NO2 in CO2 at pressures ranging from 1- 40 bar by using broadband absorption spectroscopy in the UV/VIS range

This paper presents a methodology to quantitatively measure H2S, SO2 and NO2 fractions in gaseous CO2 by using broadband absorption spectroscopy at 1 and 40 bar. The mole fractions of binary- and 3-component mixtures of H2S, SO2 and NO2 in CO2 with known fractions ranging from 35-250 ppm are successfully derived from the measured absorption spectra. The difference between the fitted and experimental mole fractions is less than 10% for all studied mixtures. The results successfully demonstrate that low fractions of H2S, SO2 and NO2 in gaseous CO2 can be accurately measured at pipeline conditions by using broad band absorption spectroscopy.

[1]  R. Herber,et al.  Experimental and Modeling Study of Salt Precipitation During Injection of CO2 Contaminated with H2S into Depleted Gas Fields in the Northeast of the Netherlands , 2014 .

[2]  C. Y. Robert Wu,et al.  Temperature-dependent photoabsorption cross sections of H2S in the 1600–2600 Å region , 1998 .

[3]  A. Vandaele,et al.  Fourier transform measurements of SO2 absorption cross sections: I. Temperature dependence in the 24 000-29 000 cm-1 (345-420 nm) region , 2009 .

[4]  Mohammad Ahmad,et al.  Solubility of Water in CO2 Mixtures at Pipeline Operation Conditions , 2014 .

[5]  C. Fitzpatrick,et al.  Hazardous exhaust gas monitoring using a deep UV based differential optical absorption spectroscopy (DOAS) system , 2007 .

[6]  R. Herber,et al.  Effect of reactive surface area of minerals on mineralization and carbon dioxide trapping in a depleted gas reservoir , 2014 .

[7]  A. Vandaele,et al.  Absorption cross-sections of NO2: simulation of temperature and pressure effects , 2003 .

[8]  H. Naveau,et al.  ATR-FTIR sensor development for continuous on-line monitoring of chlorinated aliphatic hydrocarbons in a fixed-bed bioreactor. , 2000, Biotechnology and bioengineering.

[9]  A. Mokhov,et al.  Diode laser absorption measurement and analysis of HCN in atmospheric-pressure, fuel-rich premixed methane/air flames , 2008 .

[10]  Jeffrey W. Fergus.  A review of electrolyte and electrode materials for high temperature electrochemical CO2 and SO2 gas sensors , 2008 .

[11]  Sheila A. Grant,et al.  Development of sol-gel-based fiber optic nitrogen dioxide gas sensors , 2000 .

[12]  UV spectrophotometry for monitoring toxic gases , 2000 .

[13]  R. Schepers,et al.  Quantitative Fourier Transform Infrared Diagnostics of the Gas-Phase Composition Using the HITRAN Database and the Equivalent Width of the Spectral Features , 2009, Applied Spectroscopy.

[14]  A. Eckbreth.  Laser Diagnostics for Combustion Temperature and Species , 1988 .

[15]  Z. Y. Wang,et al.  Broadband UV spectroscopy system used for monitoring of SO2 and NO emissions from thermal power plants , 2010 .

[16]  Gabriel Somesfalean,et al.  Concentration evaluation method using broadband absorption spectroscopy for sulfur dioxide monitoring , 2006 .

[17]  Pressure dependence of NO formation in laminar fuel-rich premixed CH4/air flames , 2008 .

[18]  Teiji Kato,et al.  Determination of sulfur dioxide based on a silver dispersed functional self-assembled electrochemical sensor , 2002 .

[19]  T. Cardwell,et al.  Determination of sulfur dioxide and ascorbic acid in beverages using a dual channel flow injection electrochemical detection system , 2000 .

[20]  A. Jenouvrier,et al.  The NO2 absorption spectrum. I: Absorption cross-sections at ambient temperature in the 300–500 nm region , 1995 .

[21]  A. Mokhov,et al.  Extractive probe/TDLAS measurements of acetylene in atmospheric-pressure fuel-rich premixed methane/air flames , 2005 .

[22]  Ludger Blum,et al.  Phase diagrams of CO2 and CO2 - N2 gas mixtures and their application in compression processes , 2011 .

[23]  Shaohua Wu,et al.  Using broadband absorption spectroscopy to measure concentration of sulfur dioxide , 2010 .

[24]  A. Kroll,et al.  Electrochemical sensors for hydrogen and hydrogen sulfide determination , 1994 .