Basic evaluation of the catalytic pattern of the CuCeOx system in the wet oxidation of phenol with oxygen

被引：21

作者：

Arena, F ^{[1
]}

Alongi, E ^{[1
]}

Famulari, P ^{[1
]}

Parmaliana, A ^{[1
]}

Trunfio, G ^{[1
]}

机构：

[1] Univ Messina, Dipartimento Chim Ind & Ingn Mat, I-98166 S Agata, Messina, Italy

来源：

CATALYSIS LETTERS | 2006年 / 107卷 / 1-2期

关键词：

catalytic wet oxidation; phenol; Cu catalyst; reaction mechanism; leaching; homogeneous catalysis; pH; deactivation;

D O I：

10.1007/s10562-005-9729-7

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：

The working mechanism of a ceria-supported Cu (Cu-at:Ce-at = 1:10) system in the Catalytic Wet Oxidation (CWO) of phenol with O-2 (T-R, 130-170 degrees C; P-O2, 7 atm) has been thoroughly assessed. Basic relationships amongst pH, extent of leaching and rate of phenol and TOC conversion prove the major contribution of a homogeneous catalytic path by Cu ions on the peculiar CWO pattern of supported copper catalyst. In addition, gas-phase reduction/oxidation tests signal the lack of reversibility of the redox cycle of the CuCeOx system under typical reaction conditions.

引用

页码：39 / 46

页数：8

共 27 条

[1] Cerium incorporated ordered manganese oxide OMS-2 materials: Improved catalysts for wet oxidation of phenol compounds [J].

Abecassis-Wolfovich, M ;

Jothiramalingam, R ;

Landau, MV ;

Herskowitz, M ;

Viswanathan, B ;

Varadarajan, TK .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2005, 59 (1-2) :91-98

[2] Activity and resistance to leaching of Cu-based catalysts in the wet oxidation of phenol [J].

Arena, F ;

Giovenco, R ;

Torre, T ;

Venuto, A ;

Parmaliana, A .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2003, 45 (01) :51-62

[3]

Bielansky A., 1991, OXYGEN CATALYSIS

[4]

DELEITENBURG, 1996, APPL CATAL B, V11, P29

[5] CATALYTIC REMOVAL OF PHENOL FROM AQUEOUS-PHASE USING OXYGEN OR AIR AS OXIDANT [J].

FORTUNY, A ;

FERRER, C ;

BENGOA, C ;

FONT, J ;

FABREGAT, A .

CATALYSIS TODAY, 1995, 24 (1-2) :79-83

[6] Catalytic oxidation of aqueous phenolic solutions catalyst deactivation and kinetics [J].

Hamoudi, S ;

Belkacemi, K ;

Larachi, F .

CHEMICAL ENGINEERING SCIENCE, 1999, 54 (15-16) :3569-3576

[7] Wet oxidation of phenol catalyzed by unpromoted and platinum-promoted manganese cerium oxide [J].

Hamoudi, S ;

Larachi, F ;

Cerrella, G ;

Cassanello, M .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1998, 37 (09) :3561-3566

[8] Catalytic wet oxidation of phenol over PtxAg1-xMnO2/CeO2 catalysts [J].

Hamoudi, S ;

Sayari, A ;

Belkacemi, K ;

Bonneviot, L ;

Larachi, F .

CATALYSIS TODAY, 2000, 62 (04) :379-388

[9] Wet oxidation of phenol on Ce1-xCuxO2-δ catalyst [J].

Hocevar, S ;

Batista, J ;

Levec, J .

JOURNAL OF CATALYSIS, 1999, 184 (01) :39-48

[10] CWO of phenol on two differently prepared CuO-CeO2 catalysts [J].

Hocevar, S ;

Krasovec, UO ;

Orel, B ;

Aricó, AS ;

Kim, H .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2000, 28 (02) :113-125

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