Determination of sulphur in petroleum products after sulphur dioxide generation and of sulphur dioxide in air by chemiluminescent flame emission

Alder, John F.; Kargosha, Kazem

doi:10.1016/s0003-2670(01)93256-8

Cited by 7 publications

(2 citation statements)

References 14 publications

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“…Electrochemical analyses, such as polarographic measurement of free sulfur in solution and gas chromatography with coulometric detection, have improved the throughput and sensitivity of sulfur testing in the laboratory. Further improvements have been made through optical measurement methods, including photometric measurement of lead acetate darkening in the presence of hydrogen sulfide gas and chemiluminescence flame-emission measurements based on sulfur dioxide concentration . The chemiluminescent reaction between ozone and sulfur monoxide generated from combustion of sulfur compounds in petroleum fractions is the basis for the modern sulfur chemiluminescence detector (SCD). , The measurement of sulfur content in unconventional petroleum, such as synthetic crude derived from oil sands, remains challenging due to the large size of the asphaltene molecules present.…”

Section: Introductionmentioning

confidence: 99%

Measuring Sulfur Content and Corrosivity of North American Petroleum with the Advanced Distillation Curve Method

Hsieh

Bruno

2014

Energy Fuels

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Petroleum is a complex fluid whose sulfur content varies considerably depending on its place of origin. Sour crude petroleum, which contains more than 0.5% sulfur by mass, often requires additional processing due to the potential for corrosion and catalyst poisoning during refining. Estimating or measuring the sulfur content of distillate fractions as a function of boiling temperature is an important step in petroleum refining. The advanced distillation curve (ADC) method was developed to provide a composition-explicit data channel for the measurement of thermophysical and chemical properties of complex fluids. We applied the ADC method to a composite sample of North American petroleum to characterize its boiling temperature, density, and composition as a function of distillate volume fraction. The compositions of light distillate fractions were used to estimate their densities and refractive indices based on critically evaluated thermodynamic data. The estimated densities of the distillate fractions are consistent with pycnometry data. The sulfur content, measured with a sulfur chemiluminescence detector, was found to be within the range predicted by an empirical model based on distillate boiling temperature and density. The corrosivity of various distillate cuts was tested with a modified copper strip corrosion test. Copper tarnishing was found to depend not only on the amount of sulfur present but also on the temperature at which the fraction is collected.

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Section: Introductionmentioning

confidence: 99%

Measuring Sulfur Content and Corrosivity of North American Petroleum with the Advanced Distillation Curve Method

Hsieh

Bruno

2014

Energy Fuels

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“…The method presented here is intended for the analysis of cylinder gas mixtures of SO 2 in nitrogen. The determination of SO 2 has been accomplished by a variety of techniques [ 1 , 2 , 3 , 4 , 5 , 6 , 7 ]. Most of the methods are time consuming, employ expensive instrumentation, and need sample pretreatment.…”

Section: Introductionmentioning

confidence: 99%

Accurate and precise coulometric determination of sulfur dioxide in compressed gas mixtures

Mitchell

Bell

1991

J. RES. NATL. INST. STAN.

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Coulometry has been established as an important and reliable method for the determination of acidic compounds. The analytical method and simple apparatus described here arc applied to the precise and accurate determination of sulfur dioxide in nitrogen, specifically in compressed gas cylinders at nominal concentrations of 50 and 100 µmol/mol (ppm). This method is constant current coulometry where the magnitude of the current is set by the balance between the electrochemical generation of OH−, the flow of SO2, and the chemical reaction of the solution. The method is direct, rapid, and can be refined further to provide analysis at the nanomol/mol level.

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Automated determination of sulfide by cool flame molecular emission spectrometry

Arowolo

Cresser

1992

Microchemical Journal

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Determination of sulphur in petroleum products after sulphur dioxide generation and of sulphur dioxide in air by chemiluminescent flame emission

Cited by 7 publications

References 14 publications

Measuring Sulfur Content and Corrosivity of North American Petroleum with the Advanced Distillation Curve Method

Measuring Sulfur Content and Corrosivity of North American Petroleum with the Advanced Distillation Curve Method

Accurate and precise coulometric determination of sulfur dioxide in compressed gas mixtures

Automated determination of sulfide by cool flame molecular emission spectrometry

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