MICRO-CALORIMETRIC EVIDENCE OF THE NONUNIFORM DISTRIBUTION OF ACID SITES IN A ZSM-TYPE ZEOLITE

被引：35

作者：

AUROUX, A

WIERZCHOWSKI, P

GRAVELLE, PC

机构：

[1] Institut de Recherches sur la Catalyse, CNRS

来源：

THERMOCHIMICA ACTA | 1979年 / 32卷 / 1-2期

关键词：

D O I：

10.1016/0040-6031(79)85104-7

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Calorimetric heats of adsorption of ammonia on a protonated ZSM zeolite at 416 K, plotted as a function of surface coverage, pass through a maximum which is explained by the unusual conjunction of three independent phenomena: (i) immobile adsorption, (ii) mass-transfer limitations, and (iii) preferential location of the most energetic acid sites in the internal pores of the zeolite structure. © 1979.

引用

页码：165 / 170

页数：6

共 7 条

[1]

Argauer RJ, US Patent, Patent No. [3,702,886, 3702886]

[2]

Gravelle P.C., 1972, ADV CATALYSIS REL SU, V22, P191

[3] HEATS OF ADSORPTION OF AMMONIA ON SILICA-ALUMINA CATALYSTS AND THEIR SURFACE ENERGY DISTRIBUTIONS [J].