Size-controlled Pd Nanoparticles Supported on α-Al2O3 as Heterogeneous Catalyst for Selective Hydrogenation of Acetylene

doi:10.1016/S1004-9541(14)60070-7

Chinese Journal of Chemical Engineering ›› 2014, Vol. 22 ›› Issue (5): 516-521.DOI: 10.1016/S1004-9541(14)60070-7

• 催化、动力学与反应工程 • 上一篇下一篇

Size-controlled Pd Nanoparticles Supported on α-Al₂O₃ as Heterogeneous Catalyst for Selective Hydrogenation of Acetylene

张火利¹, 杨元一^1,2, 戴伟², 鲁树亮², 于海波², 吉媛媛²

1 Department of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China;
2 Sinopec Beijing Research Institute of Chemical Industry, Beijing 100013, China

收稿日期:2012-10-29 修回日期:2013-02-28 出版日期:2014-05-28 发布日期:2014-05-06
通讯作者: DAI Wei,E-mail: daiw.bjhy@sinopec.com
基金资助:
Supported by SINOPEC Beijing Research Institute of Chemical Industry (01-09ZS0440, 11-08ZS0442).

Size-controlled Pd Nanoparticles Supported on α-Al₂O₃ as Heterogeneous Catalyst for Selective Hydrogenation of Acetylene

ZHANG Huoli¹, YANG Yuanyi^1,2, DAI Wei², LU Shuliang², YU Haibo², JI Yuanyuan²

1 Department of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China ;
2 Sinopec Beijing Research Institute of Chemical Industry, Beijing 100013, China

Received:2012-10-29 Revised:2013-02-28 Online:2014-05-28 Published:2014-05-06
Supported by:
Supported by SINOPEC Beijing Research Institute of Chemical Industry (01-09ZS0440, 11-08ZS0442).

摘要/Abstract

摘要： Size-controlled Pd nanoparticles (PdNPs) were synthesized in aqueous solution, using sodium carboxymethyl cellulose as the stabilizer. Size-controlled PdNPs were supported on α-Al₂O₃ by the incipient wetness impregnation method. The PdNPs on α-Al₂O₃ support were in a narrow particle size distribution in the range of 1-6 nm. A series of PdNPs/α-Al₂O₃ catalysts were used for the selective hydrogenation of acetylene in ethylene-rich stream. The results show that PdNPs/α-Al₂O₃ catalyst with 0.03% (by mass) Pd loading is a very effective and stable catalyst. With promoter Ag added, ethylene selectivity is increased from 41.0% to 63.8% at 100℃. Comparing with conventional Pd-Ag/α-Al₂O₃ catalyst, PdNPs-Ag/α-Al₂O₃ catalyst has better catalytic performance in acetylene hydrogenation and shows good prospects for industrial application.

关键词: Pd nanoparticles, sodium carboxymethyl cellulose, acetylene hydrogenation

Abstract: Size-controlled Pd nanoparticles (PdNPs) were synthesized in aqueous solution, using sodium carboxymethyl cellulose as the stabilizer. Size-controlled PdNPs were supported on α-Al₂O₃ by the incipient wetness impregnation method. The PdNPs on α-Al₂O₃ support were in a narrow particle size distribution in the range of 1-6 nm. A series of PdNPs/α-Al₂O₃ catalysts were used for the selective hydrogenation of acetylene in ethylene-rich stream. The results show that PdNPs/α-Al₂O₃ catalyst with 0.03% (by mass) Pd loading is a very effective and stable catalyst. With promoter Ag added, ethylene selectivity is increased from 41.0% to 63.8% at 100℃. Comparing with conventional Pd-Ag/α-Al₂O₃ catalyst, PdNPs-Ag/α-Al₂O₃ catalyst has better catalytic performance in acetylene hydrogenation and shows good prospects for industrial application.

Key words: Pd nanoparticles, sodium carboxymethyl cellulose, acetylene hydrogenation

张火利, 杨元一, 戴伟, 鲁树亮, 于海波, 吉媛媛. Size-controlled Pd Nanoparticles Supported on α-Al₂O₃ as Heterogeneous Catalyst for Selective Hydrogenation of Acetylene[J]. Chinese Journal of Chemical Engineering, 2014, 22(5): 516-521.

ZHANG Huoli, YANG Yuanyi, DAI Wei, LU Shuliang, YU Haibo, JI Yuanyuan. Size-controlled Pd Nanoparticles Supported on α-Al₂O₃ as Heterogeneous Catalyst for Selective Hydrogenation of Acetylene[J]. Chin.J.Chem.Eng., 2014, 22(5): 516-521.

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Size-controlled Pd Nanoparticles Supported on α-Al₂O₃ as Heterogeneous Catalyst for Selective Hydrogenation of Acetylene

Size-controlled Pd Nanoparticles Supported on α-Al₂O₃ as Heterogeneous Catalyst for Selective Hydrogenation of Acetylene

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