Direct Conversion of Cellulose into Polyols over Pt/CsxH3-xPW12O40

Su Jin You; In Gu Baek; Eun Duck Park

Clean Technology, Vol.19, No.1, 13-21, March, 2013

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Direct Conversion of Cellulose into Polyols over Pt/CsxH3-xPW12O40

Su Jin You, In Gu Baek, and Eun Duck Park^†

Division of Energy Systems Research and Department of Chemical Engineering, Ajou University, San 5, Woncheon-dong, Yeongtong-gu, Suwon-si, Gyeonggi 443-749, Korea

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초록

다른 분율의 Cs이 포함된 Pt/CsxH3-xPW12O40 촉매를 제조하여 셀룰로우스의 폴리올로의 수소화분해반응를 수행하였다. 촉매의 비표면적과 Pt의 분산도는 Pt/CsxH3-xPW12O40 촉매의 Cs 함량이 증가함에 따라 증가하였다. 그러나 Pt/CsxH3-xPW12O40 촉매의 Cs의 함량이 변함에도 불구하고 비슷한 폴리올 수득률을 보였다. Pt/CsxH3-xPW12O40 촉매의 반응 활성은 Ni/W/SBA-15와 두 가지의 복합촉매(Pt/AC+H3PW12O40과 Pt/AC+Cs3.0PW12O40)와 비슷하였다. 이 반응을 진행하는 동안 Pt/CsxH3-xPW12O40 촉매로부터 헤테로폴리 음이온이 침출되는 것을 확인하였다.

The hydrogenolysis of cellulose into polyols was examined over Pt/CsxH3-xPW12O40 catalysts containing different Cs fractions. The surface area and Pt dispersion of Pt/CsxH3-xPW12O40 catalysts were found to increase with Cs content. Similar polyol yields were obtained over Pt/CsxH3-xPW12O40 catalysts irrespective of their Cs content. The catalytic activity of Pt/Csx H3-xPW12O40 was comparable to that of Ni/W/SBA-15 and combined catalytic systems such as Pt/AC + H3PW12O40 and Pt/AC + Cs3.0PW12O40. Some polyanion species were found to leach from the Pt/CsxH3-xPW12O40 catalyst during the course of the reaction.

Keywords:Heteropoly acids;Cesium salts;Cellulose;Polyol;Hydrogenolysis

[References]

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[2] Rinaldi R, Schuth F, Energy Environ. Sci., 2, 192 (2009)

[3] Cabiac A, Guillon E, Chambon F, Pinel C, Rataboul F, Essayem N, Appl. Catal. A: Gen., 402(1-2), 1 (2011)

[4] Fukuoka A, Dhepe PL, Angew. Chem.-Int. Edit., 45, 5161 (2006)

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[7] Deng WP, Tan XS, Fang WH, Zhang QH, Wang Y, Catal. Lett., 133(1-2), 167 (2009)

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[9] You SJ, Baek IG, Kim YT, Jeong KE, Chae HJ, Kim TW, Kim CU, Jeong SY, Kim TJ, Chung YM, Oh SH, Park ED, Korean J. Chem. Eng., 28(3), 744 (2011)

[10] Luo C, Wang S, Liu H, Angew. Chem.-Int. Edit., 46, 7636 (2007)

[11] Ji N, Zhang T, Zheng M, Wang A, Wang H, Wang X, Chen JG, Angew. Chem.-Int. Edit., 47, 8510 (2008)

[12] Zheng MY, Wang AQ, Ji N, Pang JF, Wang XD, Zhang T, Chem-SusChem., 3, 63 (2010)

[13] Baek IG, You SJ, Park ED, Bioresour.Technol., 114, 684 (2012)

[14] Palkovits R, Tajvidi K, Ruppert AM, Procelewska J, Chem. Commun., 47, 576 (2011)

[15] Geboers J, Van de Vyver S, Carpentier K, de Blochouse K, Jacobs P, Sels B, Chem. Commun., 46, 3577 (2010)

[16] Geboers J, Van de Vyver S, Carpentier K, Jacobs P, Sels B, Green Chem., 13, 2167 (2011)

[17] Palkovits R, Tajvidi K, Procelewska J, Rinaldi R, Ruppert A, Green Chem., 12, 972 (2010)

[18] Geboers J, Van de Vyver S, Carpentier K, Jacobs P, Sels B, Catal. Commun., 47, 5590 (2011)

[19] Okuhara T, Mizuno N, Misono M, Appl. Catal. A: Gen., 222(1-2), 63 (2001)

[20] Okuhara T, Appl. Catal. A: Gen., 256(1-2), 213 (2003)

[21] Tian JA, Fan CY, Cheng MX, Wang XH, Chem. Eng. Technol., 34(3), 482 (2011)

[22] Okuhara T, Watanabe H, Nishimura T, Inumaru K, Misono M, Chem. Mater., 12, 2230 (2000)

[23] Meynen V, Cool P, Vansant EF, Micro. Mesop. Mater., 125, 170 (2009)

[24] You SJ, Kim SB, Kim YT, Park ED, Clean Technol., 16(1), 19 (2010)

[25] Na K, Iizaki T, Okuhara T, Misono M, J. Mol. Catal. A: Chem., 115, 449 (1997)

[26] Cai XE, Du DC, Ni JP, Jin YM, Zhu J, Qian YX, Thermochim. Acta, 292(1-2), 45 (1997)

[27] Essayem N, Coudurier G, Fournier M, Vedrine JC, Catal. Lett., 34(1-2), 223 (1995)

[28] Chambon F, Rataboul F, Pinel C, Cabiac A, Guillon E, Essayem N, Appl. Catal. B: Environ., 105(1-2), 171 (2011)