Strategies to enhance the stability of h-bea zeolite in the catalytic oxidation of Cl-VOCs: 1,2-Dichloroethane

被引：31

作者：

Gallastegi-Villa, M. ^{[1
]}

Romero-Saez, M. ^{[1
]}

Aranzabal, A. ^{[1
]}

Gonzalez-Marcos, J. A. ^{[1
]}

Gonzalez-Velasco, J. R. ^{[1
]}

机构：

[1] Univ Pais Vasco EHU, Fac Sci & Technol, Dept Chem Engn, Grp Chem Technol Environm Sustainabil, E-48080 Bilbao, Spain

来源：

CATALYSIS TODAY | 2013年 / 213卷

关键词：

Chlorinated VOC; 1,2-dichloroethane; Catalytic oxidation; H-zeolites; Regeneration; VOLATILE ORGANIC-COMPOUNDS; CHLORINATED HYDROCARBONS; DEACTIVATION; COMBUSTION; METHANE; TRICHLOROETHYLENE; REGENERATION; REMOVAL; BEHAVIOR; OXIDES;

D O I：

10.1016/j.cattod.2013.02.022

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The objective of this work was to evaluate the feasibility of oxy-combustion treatments with the aim of restoring the catalytic activity and properties of H-zeolites deactivated in the oxidation of Cl-VOCs, namely DCA. The efficiency of regeneration treatments was analyzed by submitting the fresh H-BEA to cycles of reaction-regeneration-reaction. Conversion of DCA was monitored with time on stream and acidity, coke content and chlorine content on the catalyst surface was characterized before each step of the cycle. We found that deactivation process was reversible, since it was associated mainly to coking. Wet air regeneration was more efficient than dry air regeneration, especially for chlorine removal, although coke was only removed above 500. degrees C. The effect of multiple cycles of reaction and regeneration steps has been also quantified. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：192 / 197

页数：6

共 32 条

[1] Combustion of chlorinated volatile organic compounds (VOCs) using bimetallic chromium-copper supported on modified H-ZSM-5 catalyst [J].

Abdullah, AZ ;

Abu Bakar, MZ ;

Bhatia, S .

JOURNAL OF HAZARDOUS MATERIALS, 2006, 129 (1-3) :39-49

[2] Catalytic oxidation of toluene over CuNaHY zeolites - Coke formation and removal [J].

Antunes, AP ;

Ribeiro, MF ;

Silva, JM ;

Ribeiro, FR ;

Magnoux, P ;

Guisnet, M .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2001, 33 (02) :149-164

[3] Kinetics of Pd/alumina catalysed 1,2-dichloroethane gas-phase oxidation [J].

Aranzabal, A ;

González-Marcos, JA ;

Ayastuy, JL ;

González-Velasco, JR .

CHEMICAL ENGINEERING SCIENCE, 2006, 61 (11) :3564-3576

[4] Stability of protonic zeolites in the catalytic oxidation of chlorinated VOCs (1,2-dichloroethane) [J].

Aranzabal, A. ;

Gonzalez-Marcos, J. A. ;

Romero-Saez, A. ;

Gonzalez-Velasco, J. R. ;

Guillemot, M. ;

Magnoux, P. .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2009, 88 (3-4) :533-541

[5] Deactivation of H-zeolites during catalytic oxidation of trichloroethylene [J].

Aranzabal, Asier ;

Romero-Saez, Manuel ;

Elizundia, Unai ;

Ramon Gonzalez-Velasco, Juan ;

Antonio Gonzalez-Marcos, Jose .

JOURNAL OF CATALYSIS, 2012, 296 :165-174

[6] Hydrocarbons by reaction-regeneration cycles [J].

Benito, PL ;

Aguayo, AT ;

Gayubo, AG ;

Bilbao, J .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1996, 35 (07) :2177-2182

[7] DEACTIVATION OF METAL EXCHANGED ZEOLITE CATALYSTS DURING EXPOSURE TO CHLORINATED HYDROCARBONS UNDER OXIDIZING CONDITIONS [J].

CHATTERJEE, S ;

GREENE, HL ;

PARK, YJ .

CATALYSIS TODAY, 1992, 11 (04) :569-596

[8] Coke steam reforming in FCC regenerator: A new mastery over high coking feeds [J].

Corma, Avelino ;

Sauvanaud, Laurent ;

Doskocil, Eric ;

Yaluris, George .

JOURNAL OF CATALYSIS, 2011, 279 (01) :183-195

[9] Surface acidic properties of alumina-supported niobia prepared by chemical vapour deposition and hydrolysis of niobium pentachloride [J].

da Silva, CLT ;

Camorim, VLL ;

Zotin, JL ;

Pereira, MLRD ;

Faro, AD .

CATALYSIS TODAY, 2000, 57 (3-4) :209-217

[10] Low-temperature catalytic combustion of trichloroethylene over cerium oxide and catalyst deactivation [J].

Dai, Qiguang ;

Wang, Xingyi ;

Lu, Guanzhong .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2008, 81 (3-4) :192-202

← 1 2 3 4 →