Soot formation from C2H2 and C2H4 pyrolysis at different temperatures

M.P. Ruiz; A. Callejas; A. Millera; M.U. Alzueta; R. Bilbao

doi:10.1016/j.jaap.2006.10.012

Soot formation from C₂H₂ and C₂H₄ pyrolysis at different temperatures

M.P. Ruiz^*, A. Callejas, A. Millera, M.U. Alzueta, R. Bilbao

^*Corresponding author for this work

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

69 Citations (Scopus)

Abstract

A study of the pyrolysis of two hydrocarbons, C2H2 and C2H4, at different temperatures has been carried out in order to compare their behaviour in terms of soot and gas yields and gas composition. Pyrolysis experiments have been performed in the same conditions for both hydrocarbons: an inlet hydrocarbon concentration of 15,000 ppmv and a temperature range of 1000–1200 °C. For C2H2 and C2H4 pyrolysis tests, the results present the same trend when increasing the temperature: an increase in soot yield, a decrease in gas yield and a similar evolution of the outlet gases. Comparatively, it can be observed that acetylene is a more sooting hydrocarbon than ethylene for a given temperature. Additionally, the study of soot reactivity with O2 and NO shows that the soot samples obtained from ethylene show a slightly higher reactivity towards O2 and NO than the soot samples formed from acetylene.

Original language	English
Pages (from-to)	244-251
Journal	Journal of analytical and applied pyrolysis
Volume	79
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jaap.2006.10.012
Publication status	Published - May 2007
Externally published	Yes

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Ruiz, M. P., Callejas, A., Millera, A., Alzueta, M. U., & Bilbao, R. (2007). Soot formation from C₂H₂ and C₂H₄ pyrolysis at different temperatures. Journal of analytical and applied pyrolysis, 79(1-2), 244-251. https://doi.org/10.1016/j.jaap.2006.10.012

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abstract = "A study of the pyrolysis of two hydrocarbons, C2H2 and C2H4, at different temperatures has been carried out in order to compare their behaviour in terms of soot and gas yields and gas composition. Pyrolysis experiments have been performed in the same conditions for both hydrocarbons: an inlet hydrocarbon concentration of 15,000 ppmv and a temperature range of 1000–1200 °C. For C2H2 and C2H4 pyrolysis tests, the results present the same trend when increasing the temperature: an increase in soot yield, a decrease in gas yield and a similar evolution of the outlet gases. Comparatively, it can be observed that acetylene is a more sooting hydrocarbon than ethylene for a given temperature. Additionally, the study of soot reactivity with O2 and NO shows that the soot samples obtained from ethylene show a slightly higher reactivity towards O2 and NO than the soot samples formed from acetylene.",

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AU - Bilbao, R.

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AB - A study of the pyrolysis of two hydrocarbons, C2H2 and C2H4, at different temperatures has been carried out in order to compare their behaviour in terms of soot and gas yields and gas composition. Pyrolysis experiments have been performed in the same conditions for both hydrocarbons: an inlet hydrocarbon concentration of 15,000 ppmv and a temperature range of 1000–1200 °C. For C2H2 and C2H4 pyrolysis tests, the results present the same trend when increasing the temperature: an increase in soot yield, a decrease in gas yield and a similar evolution of the outlet gases. Comparatively, it can be observed that acetylene is a more sooting hydrocarbon than ethylene for a given temperature. Additionally, the study of soot reactivity with O2 and NO shows that the soot samples obtained from ethylene show a slightly higher reactivity towards O2 and NO than the soot samples formed from acetylene.

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