Function of sulfur dioxide in the kinetic mechanism of oxidation of carbon

Ralph T. Yang; Meyer Steinberg

doi:10.1016/0008-6223(75)90010-X

Function of sulfur dioxide in the kinetic mechanism of oxidation of carbon

Ralph T. Yang
, Meyer Steinberg

Department of Chemical and Biological Engineering

Brookhaven National Laboratory

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

Retardation of the gasification reaction of carbon with oxygen by SO₂ was observed. Rates of oxidation were determined by thermal gravimetric analysis (TGA) of a nuclear graphite in the temperature range of 550-700°C, and of a coconut charcoal in the temperature range of 400-505°C. The oxidant gases were dry air containing 0-6% SO₂. Reduction of the rate by SO₂ varied with burn-off. Differential thermal analysis (DTA) was also applied to detect the retardation effect of SO₂. The technique of infrared internal reflection spectroscopy (IRS) was used to examine the surface species of reacted charcoal samples. Absorption bands were assigned to surface carbonyls, lactones, and a chemisorbed SO₂ in the form of sulfate. Chemisorption of SO₂ was attributed to cause the retardation of the oxidation reaction.

Original language	English
Pages (from-to)	411-416
Number of pages	6
Journal	Carbon
Volume	13
Issue number	5
DOIs	https://doi.org/10.1016/0008-6223(75)90010-X
State	Published - 1975

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title = "Function of sulfur dioxide in the kinetic mechanism of oxidation of carbon",

abstract = "Retardation of the gasification reaction of carbon with oxygen by SO2 was observed. Rates of oxidation were determined by thermal gravimetric analysis (TGA) of a nuclear graphite in the temperature range of 550-700°C, and of a coconut charcoal in the temperature range of 400-505°C. The oxidant gases were dry air containing 0-6\% SO2. Reduction of the rate by SO2 varied with burn-off. Differential thermal analysis (DTA) was also applied to detect the retardation effect of SO2. The technique of infrared internal reflection spectroscopy (IRS) was used to examine the surface species of reacted charcoal samples. Absorption bands were assigned to surface carbonyls, lactones, and a chemisorbed SO2 in the form of sulfate. Chemisorption of SO2 was attributed to cause the retardation of the oxidation reaction.",

author = "Yang, \{Ralph T.\} and Meyer Steinberg",

year = "1975",

doi = "10.1016/0008-6223(75)90010-X",

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journal = "Carbon",

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T1 - Function of sulfur dioxide in the kinetic mechanism of oxidation of carbon

AU - Yang, Ralph T.

AU - Steinberg, Meyer

PY - 1975

Y1 - 1975

N2 - Retardation of the gasification reaction of carbon with oxygen by SO2 was observed. Rates of oxidation were determined by thermal gravimetric analysis (TGA) of a nuclear graphite in the temperature range of 550-700°C, and of a coconut charcoal in the temperature range of 400-505°C. The oxidant gases were dry air containing 0-6% SO2. Reduction of the rate by SO2 varied with burn-off. Differential thermal analysis (DTA) was also applied to detect the retardation effect of SO2. The technique of infrared internal reflection spectroscopy (IRS) was used to examine the surface species of reacted charcoal samples. Absorption bands were assigned to surface carbonyls, lactones, and a chemisorbed SO2 in the form of sulfate. Chemisorption of SO2 was attributed to cause the retardation of the oxidation reaction.

AB - Retardation of the gasification reaction of carbon with oxygen by SO2 was observed. Rates of oxidation were determined by thermal gravimetric analysis (TGA) of a nuclear graphite in the temperature range of 550-700°C, and of a coconut charcoal in the temperature range of 400-505°C. The oxidant gases were dry air containing 0-6% SO2. Reduction of the rate by SO2 varied with burn-off. Differential thermal analysis (DTA) was also applied to detect the retardation effect of SO2. The technique of infrared internal reflection spectroscopy (IRS) was used to examine the surface species of reacted charcoal samples. Absorption bands were assigned to surface carbonyls, lactones, and a chemisorbed SO2 in the form of sulfate. Chemisorption of SO2 was attributed to cause the retardation of the oxidation reaction.

UR - https://www.scopus.com/pages/publications/49549143050

U2 - 10.1016/0008-6223(75)90010-X

DO - 10.1016/0008-6223(75)90010-X

M3 - Article

AN - SCOPUS:49549143050

SN - 0008-6223

VL - 13

SP - 411

EP - 416

JO - Carbon

JF - Carbon

IS - 5

ER -

Function of sulfur dioxide in the kinetic mechanism of oxidation of carbon

Abstract

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