AN EXPERIMENTAL TECHNI QUE FOR THE STUDY OF HI GH TEMPERATURE SULPHIDATION

J Chin Soc Corr Pro

1988, Vol. 8

Issue (3): 225-231 DOI:

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AN EXPERIMENTAL TECHNI QUE FOR THE STUDY OF HI GH TEMPERATURE SULPHIDATION

Zhu Rizhang and Wang Cairong(Beijing University of Iron and Steel Technology)

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Abstract An experimental technique of pure sulphidation in reducing H_2S-H_2 environment has been investigated. Equilibrium of two reactions H_2+1/2O_2=H_2O and H_2S=H_2+1/12S_2 can be reached by the apparatus employed through ceful control of the flow rate, i. e. the total flow rate of H_2S plus H_2 is kept lower than 60Oral/min. Under such a condition, oxygen partial pressure at the sample is very low. While the sulphur partial pressure can be accurately controlled within the range of 10~(-2) atm-10~(-10) atm by carefully regulating and controlling the flow rates of H_2S and H_2 respectively. Experiments demostrate that corrosion products are pure sulphides without oxides. It is feasible and reliable to study sulphidation by this technique.

Received: 25 June 1988

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Zhu Rizhang and Wang Cairong(Beijing University of Iron and Steel Technology). AN EXPERIMENTAL TECHNI QUE FOR THE STUDY OF HI GH TEMPERATURE SULPHIDATION. J Chin Soc Corr Pro, 1988, 8(3): 225-231.

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1988/V8/I3/225

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