Catalytic wet air oxidation of Aqueous solutions of substituted phenols

被引：30

作者：

Posada, D ^{[1
]}

Betancourt, P

Liendo, F

Brito, JL

机构：

[1] Cent Univ Venezuela, Fac Ciencias, Escuela Quim, Ctr Catalisis Petroleo & Petroquim Los Chaguaramo, Caracas 40679, Venezuela

[2] PDVSA Intevep Gerencia Ecol & Ambiente, El Tambor, Edo Miranda, Venezuela

[3] Inst Venezolano Invest Cient, Ctr Quim, Altos De Pipe 1020A, Estado Miranda, Venezuela

来源：

CATALYSIS LETTERS | 2006年 / 106卷 / 1-2期

关键词：

Cu/CeO2; characterization; wet air oxidation; phenol; 2-dichlorophenol; p-nitrophenol;

D O I：

10.1007/s10562-005-9195-2

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Catalytic wet air oxidation (CWAO) of aqueous solutions of phenol, 2-chlorophenol and 4-nitrophenol were studied using Cu/CeO2 with 4% of copper as catalytic material. The catalyst was prepared by an impregnation method and characterized by X-ray diffraction (XRD), BET surface area, oxygen storage capacity (OSC), temperature programmed reduction (TPR), electron paramagnetic resonance (EPR) and XPS. The reaction was carried out in a batch reactor at T=160 degrees C and 1.0 MPa. Cu/CeO2 catalyst was found effective in CWAO. On the basis of characterization data, it is suggested that the high activity of the copper-ceria catalyst is related to the modification of the structural and redox properties of the cerium oxide on copper addition. The ratio BOD5/COD was measured to evaluate the biodegradability. Pretreatment by CWAO under operating conditions resulted in effluents whose biodegradation rates were significantly higher than those of the original.

引用

页码：81 / 88

页数：8

共 44 条

[21] Wet air oxidation of p-coumaric acid over promoted ceria catalysts [J].

Neri, G ;

Pistone, A ;

Milone, C ;

Galvagno, S .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2002, 38 (04) :321-329

[22] XANES studies of the reduction behavior of (Ce1-yZry)O2 and Rh/(Ce1-yZry)O2 [J].

Overbury, SH ;

Huntley, DR ;

Mullins, DR ;

Glavee, GN .

CATALYSIS LETTERS, 1998, 51 (3-4) :133-138

[23] The influence of surface structure on the catalytic activity of cerium promoted copper oxide catalysts on alumina: oxidation of carbon monoxide and methane [J].

Park, PW ;

Ledford, JS .

CATALYSIS LETTERS, 1998, 50 (1-2) :41-48

[24] THERMAL-STABILITY OF DOPED CERIA - EXPERIMENT AND MODELING [J].

PIJOLAT, M ;

PRIN, M ;

SOUSTELLE, M ;

TOURET, O ;

NORTIER, P .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1995, 91 (21) :3941-3948

[25] CATALYTIC LIQUID-PHASE OXIDATION OF PHENOL AQUEOUS-SOLUTIONS - A KINETIC INVESTIGATION [J].

PINTAR, A ;

LEVEC, J .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1994, 33 (12) :3070-3077

[26] CATALYTIC-OXIDATION OF ORGANICS IN AQUEOUS-SOLUTIONS .1. KINETICS OF PHENOL OXIDATION [J].

PINTAR, A ;

LEVEC, J .

JOURNAL OF CATALYSIS, 1992, 135 (02) :345-357

[27] CATALYTIC-OXIDATION OF PHENOL IN AQUEOUS-SOLUTION OVER COPPER OXIDE [J].

SADANA, A ;

KATZER, JR .

INDUSTRIAL & ENGINEERING CHEMISTRY FUNDAMENTALS, 1974, 13 (02) :127-134

[28] Route of the catalytic oxidation of phenol in aqueous phase [J].

Santos, A ;

Yustos, P ;

Quintanilla, A ;

Rodríguez, S ;

García-Ochoa, F .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2002, 39 (02) :97-113

[29] DEGRADATION OF PHENOL AND SALICYLIC-ACID BY ULTRAVIOLET-RADIATION HYDROGEN-PEROXIDE OXYGEN [J].

SCHECK, CK ;

FRIMMEL, FH .

WATER RESEARCH, 1995, 29 (10) :2346-2352

[30] EFFECT OF CALCINATION TEMPERATURE ON AL2O3-SUPPORTED CEO2 - COMPLEMENTARY RESULTS FROM XRD AND XPS [J].

SCHMITZ, PJ ;

USMEN, RK ;

PETERS, CR ;

GRAHAM, GW ;

MCCABE, RW .

APPLIED SURFACE SCIENCE, 1993, 72 (02) :181-187

← 1 2 3 4 5 →