|
OALib Journal期刊
ISSN: 2333-9721
费用：99美元
|
|
|
|
P对Cu/Al2O3催化剂结构及其催化甘油氢解反应性能的影响
DOI: 10.3724/SP.J.1088.2012.20455, PP. 1410-1416
Keywords: 甘油氢解,铜基催化剂,磷,甘油,1,2-丙二醇,酸性,分散度
Abstract:
？采用分步浸渍法制备了P改性的Cu/Al2O3催化剂,利用N2吸附-脱附、X射线衍射、红外光谱、紫外-可见光谱、H2程序升温还原、NH3程序升温脱附和N2O解离吸附等方法对催化剂进行了表征,考察了P含量及浸渍次序对催化剂结构及其催化甘油氢解反应性能的影响.结果表明,先浸渍P再浸渍Cu时,所制Cu/Al2O3催化剂酸性较高,同时还促进了Cu的分散.随P含量的增加,催化剂的酸量及Cu分散度提高,并且Cu与P物种的相互作用增强;然而,P含量较高时会覆盖Cu,使暴露的Cu表面降低.先浸渍Cu后浸渍P时,尽管也提高了相应催化剂的酸性,但对Cu分散的影响不大,并且还会覆盖Cu使暴露的Cu表面明显降低.先浸渍P明显提高了Cu/Al2O3上甘油氢解反应性能.在220oC,3MPa,质量空速2h-1以及H2/甘油摩尔比20的条件下,当P含量由0增加至6%时,甘油转化率从17.1%升至95.0%,1,2-丙二醇选择性从83.7%升至97.2%.这可归因于催化剂酸性的提高及Cu与P间的相互作用.
| [1] | 马兰, 李宇明, 贺德华. 催化学报 (Ma L, Li Y M, He D H. Chin J Catal), 2011, 32: 872
|
| [2] | Miyazawa T, Kusunoki Y, Kunimori K, Tomishige K. J Catal, 2006, 240: 213
|
| [3] | 冯建, 熊伟, 贾云, 王金波, 刘德蓉, 陈华, 李贤均. 催化学报 (Feng J, Xiong W, Jia Y, Wang J B, Liu D R, Chen H, Li X J. Chin J Catal), 2011, 32: 1545
|
| [4] | Furikado I, Miyazawa T, Koso S, Shimao A, Kunimori K, Tomishige K. Green Chem, 2007, 9: 582
|
| [5] | Kusunoki Y, Miyazawa T, Kunimori K, Tomishige K. Catal Commun, 2005, 6: 645
|
| [6] | Huang L, Zhu Y L, Zheng H Y, Li Y W, Zeng Zh Y. J Chem Technol Biotechnol, 2008, 83: 1670
|
| [7] | 牛莎莎, 朱玉雷, 郑洪岩, 张维, 李永旺. 催化学报 (Niu Sh Sh, Zhu Y L, Zheng H Y, Zhang W, Li Y W. Chin J Catal), 2011, 32: 345
|
| [8] | 赵静, 于维强, 李德财, 马红, 高进, 徐杰. 催化学报 (Zhao J, Yu W Q, Li D C, Ma H, Gao J, Xu J. Chin J Catal), 2010, 31: 200
|
| [9] | Alhanash A, Kozhevnikova E F, Kozhevnikov I V. Catal Lett, 2008, 120: 307
|
| [10] | Wang Sh A, Liu H Ch. Catal Lett, 2007, 117: 62
|
| [11] | Vila F, López Granados M, Ojeda M, Fierro J L G, Mariscal R. Catal Today, 2012, 187: 122
|
| [12] | Guo L Y, Zhou J X, Mao J B, Guo X W, Zhang Sh G. Appl Catal A, 2009, 367: 93
|
| [13] | Zhou J X, Guo L Y, Guo X W, Mao J B, Zhang Sh G. Green Chem, 2010, 12: 1835
|
| [14] | Daly F P, Brinen J S. Appl Catal, 1987, 30: 91
|
| [15] | 曹光伟, 罗锡辉, 刘振华, 何金海. 催化学报 (Cao G W, Luo X H, Liu Zh H, He J H. Chin J Catal), 2001, 22: 143
|
| [16] | Gervasini A, Bennici S. Appl Catal A, 2005, 281: 199
|
| [17] | Osaka A, Takahashi K, Ikeda M. J Mater Sci Lett, 1984, 3: 36
|
| [18] | Mazza D, Vallino M, Busca G. J Am Ceram Soc, 1992, 75: 1929
|
| [19] | Montanari B, Vaccari A, Gazzano M, K？βher P, Papp H, Pasel J, Dziembaj R, Makowski W, Lojewski T. Appl Catal B, 1997, 13: 205
|
| [20] | Hu Y H, Dong L, Shen M M, Liu D, Wang J, Ding W P, Chen Y. Appl Catal B, 2001, 31: 61
|
| [21] | Centi G, Perathoner S, Biglino D, Giamello E. J Catal, 1995, 152: 75
|
| [22] | Praliaud H, Mikhailenko S, Chajar Z, Primet M. Appl Catal B, 1998, 16: 359
|
| [23] | Chen L Y, Horiuchi T, Osaki T, Mori T. Appl Catal B, 1999, 23: 259
|
| [24] | Chary K V R, Sagar G V, Naresh D, Seela K K, Sridhar B. J Phys Chem B, 2005, 109: 9437
|
| [25] | Sato S, Akiyama M, Takahashi R, Hara T, Inui K, Yokota M. Appl Catal A, 2008, 347: 186
|
| [26] | Huang Zh W, Cui F, Kang H X, Chen J, Zhang X Zh, Xia Ch G. Chem Mater, 2008, 20: 5090
|
| [27] | Chen Y Z, Chung B Z, Hsieh C R. Catal Lett, 1996, 41: 213
|
| [28] | He Zh, Lin H Q, He P, Yuan Y Zh. J Catal, 2011, 277: 54
|
Full-Text
|
|
Contact Us
service@oalib.com QQ:3279437679 
WhatsApp +8615387084133
|
|
