아크롤레인 선택 산화반응에서 Mo-V-O와 SnO<sub>2</sub>의 상간협동 - II. 담지촉매 -

박대원; 나석은; 김경훈; 이원호; 정종식

Journal of the Korean Industrial and Engineering Chemistry, Vol.5, No.2, 295-304, April, 1994

Export Citation

아크롤레인 선택 산화반응에서 Mo-V-O와 SnO₂의 상간협동 - II. 담지촉매 -

Phase Cooperation between Mo-V-O and SnO₂ in Selective Oxidation of Acrolein - II. Supported Catalysts -

박대원, 나석은, 김경훈, 이원호, 정종식

초록

담지촉매인 Mo-V-O/SnO₂(VM/Sn)와 SnO₂/Mo-V-O(Sn/VM) 촉매를 제조하여 XRD, BET, SEM, NH₃, TPD 등으로 특성분석을 실시하였다. 고정층 연속 반응기에서 아크롤레인의 산화반응을 수행한 결과 이들 촉매의 아크롤레인 전화율과 아크릴산 수율이 Mo-V-O 자체보다 높았다. 이와 같은 상승효과의 원인을 TPD, TPR, TPO 등의 방법으로 고찰한 결과 Mo-V-O와 SnO₂의 접촉면에서 Mo-V-O가 SnO₂ 상으로 전자를 전달하고 SnO₂는 spill-over oxygen을 Mo-V-O 상으로 전달함으로써 반응에 의하여 부분환원된 Mo-V-O의 재산화를 촉진시키는 상간협동 현상이 존재하기 때문으로 판단되었다.

Mo-V-O/SnO₂(VM/Sn) and SnO₂/Mo-V-O(Sn/VM) catalysts have been prepared and characterized by XRD, BET, SEM and TPD of ammonia. The catalytic reaction of acroleln oxidation with these catalysts, in a continuous-flow fixed-bed reactor, showed that they had higher conversion of acrolein and higher yield of acrylic acid than those of Mo-V-O itself. The origin of the observed synergy studied by TPD, TPR and TPO is explained by the cooperation of SnO₂ and Mo-V-O at their interfaces where electrons flow from Mo-V-O phase to SnO₂ and SnO₂ produces spill-over oxygens, which, by being transported onto the surface of Mo-V-O, reoxidize the partially reduced active sites.

[References]

Hucknall DJ, "Selective Oxidation of Hydrocarbons," Academic Press, New York, 23 (1974)
Dadyburjor DB, Jewur SS, Ruckenstein E, Catal. Rev.-Sci. Eng., 19, 293 (1979)
Grasselli RK, Burrington JD, Adv. Catal., 30, 133 (1981)
French Patent, DE 2,397,229 (1979)
Japan Patent, 86-11, 211 (1986)
Carson D, Coudurier G, Forissier M, Verdine JC, J. Chem. Soc.-Faraday Trans., 79 (1983)
Weng LT, Delmon B, Appl. Catal., 81, 141 (1992)
Qiu FY, Weng LT, Ruiz P, Delmon B, Appl. Catal., 47, 115 (1989)
Zhou B, Sham E, Machej T, Bertrand P, Ruiz P, Delmon B, J. Catal., 132, 157 (1991)
Zhou B, Chuang KT, Guo X, J. Chem. Soc.-Faraday Trans., 87, 3695 (1991)
Weng LT, Spitaels N, Yasse B, Ladriere J, Ruiz P, Delmon B, J. Catal., 132, 319 (1991)
Serwicka EM, Black JB, Goodenough JB, J. Catal., 106, 23 (1987)
Park DW, Na SE, Kim KH, Lee WH, to be published (1994)
Gates BC, Katzer JR, Schuit GC, "Chemistry of Catalytic Process," McGraw-Hill, New York (1979)
Liu ZX, Bao QX, Wu NJ, J. Catal., 113, 45 (1988)

[Referenced By]

[1] Hucknall DJ, "Selective Oxidation of Hydrocarbons," Academic Press, New York, 23 (1974)

[2] Dadyburjor DB, Jewur SS, Ruckenstein E, Catal. Rev.-Sci. Eng., 19, 293 (1979)

[3] Grasselli RK, Burrington JD, Adv. Catal., 30, 133 (1981)

[4] French Patent, DE 2,397,229 (1979)

[5] Japan Patent, 86-11, 211 (1986)

[6] Carson D, Coudurier G, Forissier M, Verdine JC, J. Chem. Soc.-Faraday Trans., 79 (1983)

[7] Weng LT, Delmon B, Appl. Catal., 81, 141 (1992)

[8] Qiu FY, Weng LT, Ruiz P, Delmon B, Appl. Catal., 47, 115 (1989)

[9] Zhou B, Sham E, Machej T, Bertrand P, Ruiz P, Delmon B, J. Catal., 132, 157 (1991)

[10] Zhou B, Chuang KT, Guo X, J. Chem. Soc.-Faraday Trans., 87, 3695 (1991)

[11] Weng LT, Spitaels N, Yasse B, Ladriere J, Ruiz P, Delmon B, J. Catal., 132, 319 (1991)

[12] Serwicka EM, Black JB, Goodenough JB, J. Catal., 106, 23 (1987)

[13] Park DW, Na SE, Kim KH, Lee WH, to be published (1994)

[14] Gates BC, Katzer JR, Schuit GC, "Chemistry of Catalytic Process," McGraw-Hill, New York (1979)

[15] Liu ZX, Bao QX, Wu NJ, J. Catal., 113, 45 (1988)