Effect of Reaction Conditions and Catalytic Properties on Methanol Conversion Over SAPO-34

Young-Kwon Park; Se-Won Baek; Son-Ki Ihm

Journal of Industrial and Engineering Chemistry, Vol.7, No.3, 167-172, May, 2001

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Effect of Reaction Conditions and Catalytic Properties on Methanol Conversion Over SAPO-34

Young-Kwon Park , Se-Won Baek, and Son-Ki Ihm^†

National Research Laboratory for Environmental Catalysis, Dept. of Chem. Eng., Korea Advanced Institute of Science and Technology, 373-1, Kusong-dong, Yusong-gu, Taejon 305-701, Korea

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Methanol conversion was carried out over SAPO-34 catalysts at 400 ℃ and 1 atm to investigate the selectivity of the hydrocarbon products. SAPO-34 catalysts with different Si/Al ratios were modified by (hydro)thermal treatments, ammonia preadsorption, and/or TEOS CVD to change their catalytic properties. The change in acidity induced by these treatments did not seem to produce any significant changes in activity and selectivity, however the reaction parameters, including the partial pressure of methanol and presence of water in the feed, were found to influence the hydrocarbon product distribution by increasing the C2 (especially ethene) selectivity.

Keywords:Methanol;SAPO-34;Reaction Parameter;Acidic Property;Carbon Pool

[References]

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March AJ, Froment GF, Appl. Catal. A: Gen., 94, 91 (1993)
Chang CD, Catal. Rev.-Sci. Eng., 25, 1 (1983)
Liang J, Li H, Zhao S, Guo W, Wang R, Ying M, Appl. Catal., 64, 31 (1990)
Dahl IM, Kolboe S, J. Catal., 149(2), 458 (1994)
Park YK, Park KC, Ihm SK, Catal. Today, 44(1-4), 165 (1998)
Inui T, Phatanasri S, Matsuda H, J. Chem. Soc.-Chem. Comm., 205 (1990)
Inui T, Stud. Surf. Sci. Catal., 105, 1441 (1997)
Kang M, Um MH, Lee CT, Inui T, J. Ind. Eng. Chem., 4(3), 185 (1998)
Vanniekerk MJ, Fletcher JC, Oconnor CT, Appl. Catal. A: Gen., 138(1), 135 (1996)
Cartlidge S, Patel R, Stud. Surf. Sci. Catal., 49, 1151 (1989)
Chen J, Wright S, Natarajan S, Thomas JM, Stud. Surf. Sci. Catal., 84, 1731 (1994)
Hocevar S, Levec J, J. Catal., 135, 518 (1992)
Kang M, Lee CT, Um MH, J. Ind. Eng. Chem., 5(1), 10 (1999)
Marchi AJ, Froment GF, Appl. Catal., 71, 139 (1991)
Popova M, Minchev C, Kanazirev V, Appl. Catal. A: Gen., 169(2), 227 (1998)
Ashtekar S, Chilukuri SV, Chakrabarty DK, J. Phys. Chem., 98(18), 4878 (1994)
Tynjala P, Pakkanen TT, J. Mol. Catal., 122, 159 (1997)
Salehirad F, Anderson MW, J. Catal., 164(2), 301 (1996)
Blackwell CS, Patton RL, J. Phys. Chem., 92, 3956 (1988)
Watanabe Y, Koiwai A, Takeuchi H, Hyodo S, J. Catal., 143, 430 (1993)
Bennet JM, Barcus BK, Stud. Surf. Sci. Catal., 37, 269 (1988)
Hocevar S, Batista J, Kaucic V, J. Catal., 139, 351 (1993)
Kang M, Inui T, Catal. Lett., 53(3-4), 171 (1998)
Chen D, Rebo HP, Moljord K, Holmen A, Ind. Eng. Chem. Res., 36(9), 3473 (1997)
Chen D, Moljord K, Fuglerud T, Holem A, Microporous Mesoporous Mater., 29, 191 (1999)

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[2] March AJ, Froment GF, Appl. Catal. A: Gen., 94, 91 (1993)

[3] Chang CD, Catal. Rev.-Sci. Eng., 25, 1 (1983)

[4] Liang J, Li H, Zhao S, Guo W, Wang R, Ying M, Appl. Catal., 64, 31 (1990)

[5] Dahl IM, Kolboe S, J. Catal., 149(2), 458 (1994)

[6] Park YK, Park KC, Ihm SK, Catal. Today, 44(1-4), 165 (1998)

[7] Inui T, Phatanasri S, Matsuda H, J. Chem. Soc.-Chem. Comm., 205 (1990)

[8] Inui T, Stud. Surf. Sci. Catal., 105, 1441 (1997)

[9] Kang M, Um MH, Lee CT, Inui T, J. Ind. Eng. Chem., 4(3), 185 (1998)

[10] Vanniekerk MJ, Fletcher JC, Oconnor CT, Appl. Catal. A: Gen., 138(1), 135 (1996)

[11] Cartlidge S, Patel R, Stud. Surf. Sci. Catal., 49, 1151 (1989)

[12] Chen J, Wright S, Natarajan S, Thomas JM, Stud. Surf. Sci. Catal., 84, 1731 (1994)

[13] Hocevar S, Levec J, J. Catal., 135, 518 (1992)

[14] Kang M, Lee CT, Um MH, J. Ind. Eng. Chem., 5(1), 10 (1999)

[15] Marchi AJ, Froment GF, Appl. Catal., 71, 139 (1991)

[16] Popova M, Minchev C, Kanazirev V, Appl. Catal. A: Gen., 169(2), 227 (1998)

[17] Ashtekar S, Chilukuri SV, Chakrabarty DK, J. Phys. Chem., 98(18), 4878 (1994)

[18] Tynjala P, Pakkanen TT, J. Mol. Catal., 122, 159 (1997)

[19] Salehirad F, Anderson MW, J. Catal., 164(2), 301 (1996)

[20] Blackwell CS, Patton RL, J. Phys. Chem., 92, 3956 (1988)

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[22] Bennet JM, Barcus BK, Stud. Surf. Sci. Catal., 37, 269 (1988)

[23] Hocevar S, Batista J, Kaucic V, J. Catal., 139, 351 (1993)

[24] Kang M, Inui T, Catal. Lett., 53(3-4), 171 (1998)

[25] Chen D, Rebo HP, Moljord K, Holmen A, Ind. Eng. Chem. Res., 36(9), 3473 (1997)

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