SMALL-ANGLE X-RAY-SCATTERING INVESTIGATIONS OF PORE STRUCTURE CHANGES DURING COAL-GASIFICATION

被引：15

作者：

FOSTER, MD

JENSEN, KF

机构：

[1] Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis

来源：

FUEL | 1990年 / 69卷 / 01期

基金：

美国国家科学基金会;

关键词：

gasification of coal; pore structure; X-ray;

D O I：

10.1016/0016-2361(90)90263-P

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：

The evolution of the internal pore structure and surface area for an anthracite coal char is investigated by small angle X-ray scattering (SAXS) for different degrees of CO2 gasification. The SAXS data are interpreted with a model of interpenetrating spherical voids, and show that significant changes in pore structure occur during pyrolysis and up to 7% conversion. Further changes in the scattering behaviour are more gradual. Results obtained at high conversions are affected by scattering from mineral matter. The usefulness of a model to interpret SAXS data is demonstrated. © 1990.

引用

页码：88 / 96

页数：9

共 33 条

[1]

[Anonymous], 1982, SMALL ANGLE X RAY SC

[2] INTERFACIAL SURFACE-AREA IN DISPERSIONS AND POROUS-MEDIA [J].