Determination of SO<sub>2</sub> and SO<sub>3</sub> in Flue Gas of FCC by Thoron Titration

YANG Xue-mei; LIN Yu; BAI Zheng-wei

doi:10.11973/lhjy-hx201507001

YANG Xue-mei, LIN Yu, BAI Zheng-wei. Determination of SO2 and SO3 in Flue Gas of FCC by Thoron Titration[J]. PHYSICAL TESTING AND CHEMICAL ANALYSIS PART B:CHEMICAL ANALYSIS, 2015, 51(7): 893-896. DOI: 10.11973/lhjy-hx201507001

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Determination of SO₂ and SO₃ in Flue Gas of FCC by Thoron Titration

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SO2 and SO3 in flue gas of FCC were collected simultaneously by three impingers connected to a buffer flask in tanderm.The absorptive solution was titrated with barium perchlorate standard solution using thorium as indicator to determine the concentration of sulfate ion.The content of SO2 and SO3 in flue gas of FCC was calculated.The method was used for field sampling and analysis in refineries.

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Determination of SO2 and SO3 in Flue Gas of FCC by Thoron Titration

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Determination of SO₂ and SO₃ in Flue Gas of FCC by Thoron Titration