Catalytic Dehydration of CH<sub>3</sub>OH to Dimethyl Ether over Alumina Synthesized from Aluminum Dross

Jae-Woo Kim; Venkataraman Vishwanathan; Eun-Ohk Oh; Ki-Won Jun; Jeong Yeon Kim; Young-Ho Kim; Seung-Joon Yoo

Journal of Industrial and Engineering Chemistry, Vol.10, No.6, 982-987, November, 2004

Catalytic Dehydration of CH₃OH to Dimethyl Ether over Alumina Synthesized from Aluminum Dross

Jae-Woo Kim^{1, 2}, Venkataraman Vishwanathan^{1, 3}, Eun-Ohk Oh^{1, 3}, Ki-Won Jun^{1, 3, †}, Jeong Yeon Kim^{1, 3}, Young-Ho Kim^{2, 3}, and Seung-Joon Yoo^{4, 3}

¹Micro-Chemical Technology Laboratory, Korea Research Institute of Chemical Technology, Daejeon 305-764, Korea
²Department of Fine Chemical Engineering and Chemistry, Chungnam University, Daejeon 305-764, Korea
³, Korea
⁴Faculty of Environmental and Chemical Engineering, Seonam University, Namwon 590-711, Korea

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Activated aluminas have been synthesized via two different intermediate precursors, vis., Al(OH)₃ and Al(OC₃H₇)₃, from aluminum dross as the starting material and their catalytic behaviors have been investigated as solid acids in the dehydration of methanol to dimethyl ether. Only the synthesis method using aluminum isopropoxide gave efficient active catalysts having 100% selectivity for DME and high stability. Based on these results, we infer that the high activity of the Al₂O₃ catalyst derived from alkoxide is due to the presence of only the γ-phase as well as negligible Na content, in contrast to the co-existence of x- phase Al₂O₃ and relatively high Na-content in the Al₂O₃ catalyst derived from hydroxide.

Keywords:alumina;aluminum dross;dimethyl ether;methanol dehydration;surface acidity

[References]

Rouhi AM, Chem. Eng. News, 73(50), 37 (1995)
Xu M, Lunsford JM, Goodman DW, Bhattachrya A, Appl. Catal. A: Gen., 149, 289 (1995)
Chang CD, Catal. Rev.-Sci. Eng., 25, 1 (1983)
Cai G, Liu Z, Shi R, He C, Yang L, Sun C, Chang Y, Appl. Catal. A: Gen., 29, 125 (1995)
Satterfield CN, Heterogeneous Catalysis and Industrial Practice, 2nd Edn., ch. 7, McGraw-Hill, New York (1963)
Roh HS, Jun KW, Kim JW, Vishwanathan V, Chem. Lett., 5, 598 (2004)
Wells AF, Structural Inorganic Chemistry, 4th Ed., p. 457, Clarendon Press, Oxford (1975)
Roh HS, Liu ZW, Potdar HS, Kim JW, Jun KW, J. Ind. Eng. Chem., 9(6), 762 (2003)
Sohn JR, Seo DH, Lee SH, J. Ind. Eng. Chem., 10(2), 309 (2004)
Knozinger H, Catalysis by Acids and Bases, B. Imelik, C. Naccache, G. Coudurier, Z. Ben Tarrit, and J. Vedrine 111, Eds. Elsevier, Amsterdam (1985)
Knozinger H, Ratnasamy P, Catal. Sci. Eng., 17, 31 (1978)
El-Katatny EA, Halawy SA, Mohamed MA, Zaki MI, J. Chem. Technol. Biotechnol., 75(5), 394 (2000)
Ko HS, Suh JK, Park BK, Lee JM, Ha BH, J. Korean Ind. Eng. Chem., 12(4), 388 (2001)
Mohamed MA, Kaseem ME, Elkatany EA, J. Mater. Res., 4, 1075 (1998)
Park HK, Lee HI, Yoon EP, U. S. Patent 6,296,817 (2001)
Yoo SJ, Baek WS, Park HJ, Lee JW, Kim SG, Hwang UY, Park HS, Yoon HS, HWAHAK KONGHAK, 40(3), 371 (2002)

[Referenced By]

[Related Articles]

[1] Rouhi AM, Chem. Eng. News, 73(50), 37 (1995)

[2] Xu M, Lunsford JM, Goodman DW, Bhattachrya A, Appl. Catal. A: Gen., 149, 289 (1995)

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

[4] Cai G, Liu Z, Shi R, He C, Yang L, Sun C, Chang Y, Appl. Catal. A: Gen., 29, 125 (1995)

[5] Satterfield CN, Heterogeneous Catalysis and Industrial Practice, 2nd Edn., ch. 7, McGraw-Hill, New York (1963)

[6] Roh HS, Jun KW, Kim JW, Vishwanathan V, Chem. Lett., 5, 598 (2004)

[7] Wells AF, Structural Inorganic Chemistry, 4th Ed., p. 457, Clarendon Press, Oxford (1975)

[8] Roh HS, Liu ZW, Potdar HS, Kim JW, Jun KW, J. Ind. Eng. Chem., 9(6), 762 (2003)

[9] Sohn JR, Seo DH, Lee SH, J. Ind. Eng. Chem., 10(2), 309 (2004)

[10] Knozinger H, Catalysis by Acids and Bases, B. Imelik, C. Naccache, G. Coudurier, Z. Ben Tarrit, and J. Vedrine 111, Eds. Elsevier, Amsterdam (1985)

[11] Knozinger H, Ratnasamy P, Catal. Sci. Eng., 17, 31 (1978)

[12] El-Katatny EA, Halawy SA, Mohamed MA, Zaki MI, J. Chem. Technol. Biotechnol., 75(5), 394 (2000)

[13] Ko HS, Suh JK, Park BK, Lee JM, Ha BH, J. Korean Ind. Eng. Chem., 12(4), 388 (2001)

[14] Mohamed MA, Kaseem ME, Elkatany EA, J. Mater. Res., 4, 1075 (1998)

[15] Park HK, Lee HI, Yoon EP, U. S. Patent 6,296,817 (2001)

[16] Yoo SJ, Baek WS, Park HJ, Lee JW, Kim SG, Hwang UY, Park HS, Yoon HS, HWAHAK KONGHAK, 40(3), 371 (2002)