Hydroxylation of phenol with H2O2 over binary Cu-Pd-alginate catalyst in the fixed-bed flow reactor

作者：Shi, Fengwei; Luo, Yingying; Wang, Wei; Hu, Jianglei; Zhang, Long^*

来源：Reaction Kinetics, Mechanisms and Catalysis, 2015, 115(1): 187-199.

DOI：10.1007/s11144-015-0836-1

• Metal crosslinked alginate
• Fixed-bed flow reactor
• Phenol hydroxylation
• Heterogeneous catalysts

A series of Cu-alginate and Cu-Pd-alginate catalysts were prepared by the ion exchange of Na-alginate, and their structures were well characterized by FT-IR, XPS and ICP-AES measurements. Their catalytic activities for phenol hydroxylation in the fixed-bed flow reactor were investigated. The effects of different reaction conditions, such as molar ratio of phenol/H2O2, reaction temperature, weight hourly space velocity, solution and weight ratio of water/phenol were evaluated. Under the optimum reaction conditions, 17.1 % phenol conversion was obtained with selectivities to catechol and hydroquinone being 67.7 and 31.4 %, respectively. The 16.0-18.0 % phenol conversion and selectivities to HQ 30.0-32.0 %, CAT 66.0-68.0 % and BQ 0.7-2.0 % of the long-run catalytic test confirmed the excellent stable catalytic activity of the catalyst.

• 出版日期2015-6
• 单位长春工业大学