A Study on the Synthesis of C2-Hydrocarbons Using Methane Activation

Hak-Soo Kim; Sae-Joong Oh

Journal of Industrial and Engineering Chemistry, Vol.4, No.1, 12-18, March, 1998

Division of Chemical Engineering, Sun Moon University, Chung Nam 336-840,Korea

Oxidative coupling of methane was carried out by the combination of plasma and catalytic reactions. The plasma conditions were in the range of 100-300W discharge power, 10-100 SCCM total flow rate and 2-20 torr pressure. The catalysts used were Ni/La₂O₃ and Cu-Zn/ γ-Alumina. The catalysts were prepared by washcoating method on honey-comb type ceramic substrates. The preliminary test results showed that the plasma activation of methane was strongly affected by the discharge power and feed flow rate. The plasma/catalytic reactions improved the conversion of methane and C₂-yields as compared with the plasma reaction in the absence of catalysts, and Ni/La₂O₃ catalyst showed higher methane activity than that of Cu-Zn/ γ -Alumina catalyst. The optimum O₂/CH₄ ratio to maximize C₂-yields was studied.

[References]

Amenomiya Y, Birss VI, Goledzinowski M, Catal. Rev.-Sci. Eng., 32, 163 (1990)
Sherry AE, Wayland BB, J. Am. Chem. Soc., 112, 1259 (1987)
Olah G, Accounts Chem. Res., 20, 422 (1987)
Dowden DA, Schnell CR, Walker GT, Proc. 4-5 Int. Congr. Catal., Moscow, 201 (1968)
Pitchai R, Klier K, Catal. Rev.-Sci. Eng., 28, 13 (1986)
Jeon HJ, Introduction to Catalyst, p. 186, Hanlim, Seoul (1988)
Kieffer R, Ramaroson E, Deluzarche A, Trambouze Y, React. Kinet. Catal. Lett., 16, 207 (1981)
Boenig HV, Fundamentals of Plasma Chemistry and TEchnology, Technomic Publishing Co. (1988)
U.S. Patent, 3,168,592 (1969)
Uyama H, Matsumoto O, Plasma Chem. Plasma Process., 9, 1 (1989)
Suib SL, Zerger RP, J. Catal., 139, 383 (1993)
Coopes LH, Gifkins KJ, J. Macromol. Sci.-Chem., A17, 217 (1982)
Oumghar A, Legrand JC, Diamy AM, Turillon N, Benaim RI, Plasma Chem. Plasma Process., 14(3), 229 (1994)
Baulch DL, Cobos CJ, Warnatz J, J. Phys. Chem. Ref. Data, 21, 411 (1992)

[1] Amenomiya Y, Birss VI, Goledzinowski M, Catal. Rev.-Sci. Eng., 32, 163 (1990)

[2] Sherry AE, Wayland BB, J. Am. Chem. Soc., 112, 1259 (1987)

[3] Olah G, Accounts Chem. Res., 20, 422 (1987)

[4] Dowden DA, Schnell CR, Walker GT, Proc. 4-5 Int. Congr. Catal., Moscow, 201 (1968)

[5] Pitchai R, Klier K, Catal. Rev.-Sci. Eng., 28, 13 (1986)

[6] Jeon HJ, Introduction to Catalyst, p. 186, Hanlim, Seoul (1988)

[7] Kieffer R, Ramaroson E, Deluzarche A, Trambouze Y, React. Kinet. Catal. Lett., 16, 207 (1981)

[8] Boenig HV, Fundamentals of Plasma Chemistry and TEchnology, Technomic Publishing Co. (1988)

[9] U.S. Patent, 3,168,592 (1969)

[10] Uyama H, Matsumoto O, Plasma Chem. Plasma Process., 9, 1 (1989)

[11] Suib SL, Zerger RP, J. Catal., 139, 383 (1993)

[12] Coopes LH, Gifkins KJ, J. Macromol. Sci.-Chem., A17, 217 (1982)

[13] Oumghar A, Legrand JC, Diamy AM, Turillon N, Benaim RI, Plasma Chem. Plasma Process., 14(3), 229 (1994)

[14] Baulch DL, Cobos CJ, Warnatz J, J. Phys. Chem. Ref. Data, 21, 411 (1992)