Abstract
Influence of the presence of CO2, which is a mild oxidant, on the performance of the thermal cracking of ethane to ethylene in the absence or presence of limited O2 at different temperatures (750–900‡C), space velocities (1500–9000 h-1) and CO2/C2H6 and O2/C2H6 mole ratios (0–2.0 and 0–0.3 respectively) has been investigated. In both the presence and absence of limited O2, ethane conversion increases markedly because of the presence of CO2, indicating its beneficial effect on the ethane to ethylene cracking. The increased ethane conversion is, however, not due to the oxidation of ethane to ethylene by CO2; the formation of carbon monoxide in the presence of CO2 is found to be very small. It is most probably due to the activation of ethane in the presence of CO2.
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References
Kniel I, Winter O and Stork K 1980 InEthylene: Keystone to the petrochemical industry (New York: Dekker)
Choudhary V R and Mulla SAR 1997AIChE J. 43 1545
Choudhary V R, Mulla S A R and Rajput A M 1997I & EC Res. 36 2075
Choudhary V R, Rane V H and Rajput A M 1998AIChE J. 44 2293
Bradford M C J and Vannice M A 1999Catal. Rev.- Sci. Eng. 41 1
Nishiyama T and Aika K 1990J. Catal. 122 346
Nakagawa K, Okamura M, Ikenaga N, Suzuki T and Kobayashi T 1998Chem. Commun. 1025
Wang S, Murata K, Hayakawa T, Hamakawa S and Suzuki K 1999Chem. Lett. 569
Wang S, Murata K, Hayakawa T, Hamakawa S and Suzuki K 1999Catal. Lett. 63 59
Wang S, Murata K, Hayakawa T, Hamakawa S and Suzuki K 1999React. Kinet. Catal. Lett. 68 265
Wang S, Murata K, Hayakawa T, Hamakawa S and Suzuki K 2000Appl. Catal. 196 1
Longya X, Liwu L, Qingxia W, Li Y, Debao W and Weichen L 1998Natural Gas Conversion 119 605
Solymosi F and Nemeth R 1999Catal. Lett. 62 197
Takahara I and Saito M 1996Chem. Lett. 973
Choudhary V R, Choudhari S T and Rajput A M 1991AIChE J. 37 915
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Choudhary, V.R., Mondal, K.C. & Mulla, S.A.R. Non-catalytic pyrolysis of ethane to ethylene in the presence of CO2 with or without limited O2 . J Chem Sci 118, 261–267 (2006). https://doi.org/10.1007/BF02708286
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DOI: https://doi.org/10.1007/BF02708286