用沉淀沉积法和不同加料顺序制备了一系列草酸二乙酯气相加氢制乙二醇的Cu/SiO2催化剂,考察了反应温度、反应压力及氢气/草酸二乙酯摩尔比对催化性能的影响,以优化催化剂的制备方法和反应工艺条件.通过TPR,XRD,BET,HRTEM和SEM对催化剂进行了表征,揭示催化剂的稳定性、成型和活性位的分布.通过对实验数据的分析,确定了最佳的制备方法、铜负载量、还原温度和反应工艺条件,使草酸二乙酯的转化率和乙二醇的收率分别达到94.8%和76.0%.
参考文献
| [1] | Li YC;Yan SR;Yang WM;Xie ZK;Chen QL;Yue B;He HY .Effects of support modification on Nb2O5/alpha-Al2O3 catalyst for ethylene oxide hydration[J].Journal of molecular catalysis, A. Chemical,2005(2):285-290. |
| [2] | Li Y C;Yan S R;Yue B;Yang W M Xie Z K Chen Q L He H Y .[J].Applied Catalysis A:General,2004,272(1-2):305. |
| [3] | Jiang X Z;Su Y H;Lee B J;Chien S H .[J].Applied Catalysis A:General,2001,211(01):47. |
| [4] | Gao Z H;Liu Z C;He F;Xu G H .[J].Journal of Molecular Catalysis A:Chemical,2005,235(1-2):143. |
| [5] | Santos S M;Silva A M;Jordao E;Fraga M A .[J].Catalysis Communications,2004,5(07):377. |
| [6] | van Engelen M C;Teunissen H T;de Vries J G;Elsevier C J .[J].Journal of Molecular Catalysis A:Chemical,2003,206(1-2):185. |
| [7] | Matteoli U;Bianchi M;Menchi G;Frediani P Piacenti F .[J].Journal of Molecular Catalysis,1985,29(02):269. |
| [8] | Matteoli U;Menchi G;Bianchi M;Piacenti F .[J].Journal of Organometallic Chemistry,1986,299(02):233. |
| [9] | Matteoli U;Menchi G;Bianchi M;Piacenti F .[J].Journal of Molecular Catalysis,1988,44(03):347. |
| [10] | Matteoli U;Menchi G;Bianchi M;Piacenti F .[J].Journal of Molecular Catalysis,1991,64(03):257. |
| [11] | Park D;Yun Y S;Park J M .[J].Process Biochemistry,2005,40(07):2559. |
| [12] | Thomas D J;Wehrli J T;Wainwright M S;Trimm D L Cant N M .[J].Applied Catalysis A:General,1992,86(02):101. |
| [13] | Xu G H;Li Y C;Li Z H;Wang H J .[J].Industrial and Engineering Chemistry Research,1995,34(07):2371. |
| [14] | Brands D S;Poels E K;Bliek A .[J].Applied Catalysis A:General,1999,184(02):279. |
| [15] | 李振花;许根慧;王海京;陈洪钫 .[J].催化学报,1995,16(01):9. |
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