Thermal behavior of the phenol-Pd-ACC system

TY - JOUR

T1 - Thermal behavior of the phenol-Pd-ACC system

AU - Shter, G. E.

AU - Shindler, Yu

AU - Matatov-Meytal, Yu

AU - Grader, G. S.

AU - Sheintuch, M.

N1 - Funding Information: This work was supported in part by a joint grant from the Center for Adsorption in Science of the Ministry of Immigrant Absorption and the Committee for Planning and Budgeting of the Council for Higher Education under the framework of the KAMEA Program. Authors acknowledge the support of the Grand Water Research Institute, the Technion’s Institute of Catalysis and Technion’s Fund for the promotion of research.

PY - 2002

Y1 - 2002

N2 - Thermal behavior, morphology features and phenol adsorption as well as Pd catalytic properties in activated carbon cloth (ACC)-Pd-Phenol system and its subsystems were investigated under oxidizing and inert atmospheres. Pd/ACC systems were classified in two types: systems with low Pd loadings (Pd <1.3% wt.) were found to be more active than systems with high Pd loading. Thermal behavior of the systems was described using characteristic temperatures marking the initiation of phenol oxidation (Tp), ACC surface oxidation (Tc) and the carbon gasification (Tg). Analysis of the DTA/TGA profiles was interpreted in terms of desorption, carbonization, oxidative coupling reactions and complete combustion. Data on thermal behavior of systems in argon and air demonstrated a significant catalytic activity of impregnated Pd towards oxidation of ACC surface and its skeleton, and the processes of the phenol/ACC carbonization and oxidation. The results obtained are the basis for development of thermal and catalytic regeneration processes for ACC adsorbent.

AB - Thermal behavior, morphology features and phenol adsorption as well as Pd catalytic properties in activated carbon cloth (ACC)-Pd-Phenol system and its subsystems were investigated under oxidizing and inert atmospheres. Pd/ACC systems were classified in two types: systems with low Pd loadings (Pd <1.3% wt.) were found to be more active than systems with high Pd loading. Thermal behavior of the systems was described using characteristic temperatures marking the initiation of phenol oxidation (Tp), ACC surface oxidation (Tc) and the carbon gasification (Tg). Analysis of the DTA/TGA profiles was interpreted in terms of desorption, carbonization, oxidative coupling reactions and complete combustion. Data on thermal behavior of systems in argon and air demonstrated a significant catalytic activity of impregnated Pd towards oxidation of ACC surface and its skeleton, and the processes of the phenol/ACC carbonization and oxidation. The results obtained are the basis for development of thermal and catalytic regeneration processes for ACC adsorbent.

KW - A. Carbon cloth

KW - B. Catalyst support

KW - C. Adsorption, Thermal analysis

KW - D. Reactivity

UR - http://www.scopus.com/inward/record.url?scp=0036383411&partnerID=8YFLogxK

U2 - 10.1016/S0008-6223(02)00172-0

DO - 10.1016/S0008-6223(02)00172-0

M3 - 文章

AN - SCOPUS:0036383411

SN - 0008-6223

VL - 40

SP - 2547

EP - 2557

JO - Carbon

JF - Carbon

IS - 14

ER -