ACTIVATION-ENERGY DISTRIBUTION IN TEMPERATURE-PROGRAMMED DESORPTION - MODELING AND APPLICATION TO THE SOOT - OXYGEN SYSTEM

被引：101

作者：

DU, ZY ^{[1
]}

SAROFIM, AF ^{[1
]}

LONGWELL, JP ^{[1
]}

机构：

[1] MIT,DEPT CHEM ENGN,CAMBRIDGE,MA 02139

来源：

ENERGY & FUELS | 1990年 / 4卷 / 03期

关键词：

D O I：

10.1021/ef00021a014

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

A desorption model has been developed to determine the activation energy distribution of the surface oxygen complex in TPD (temperature-programmed desorption). This model has two major advantages: (1) The activation energy distribution can be calculated directly from the measurable TPD data. (2) The model is in principle capable of dealing with any temperature programs in TPD experiments. Experimental desorption studies of an uncatalyzed soot material with three different temperature programs have been carried out and resulted in the same activation energy distribution using the present model. The obtained energy distribution has been found to be approximately Gaussian. © 1990, American Chemical Society. All rights reserved.

引用

页码：296 / 302

页数：7

共 12 条

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[2]

BOUDART M, 1984, KINETICS HETEROGENEO, P74

[3]

COTTRELL TL, 1954, STRENGTH CHEM BONDS, P53

[4]

DU Z, 1990, THESIS MIT, P37