Improved spinel-containing refractory castables for slagging gasifiers

被引：47

作者：

Gehre, P. ^{[1
]}

Aneziris, C. G. ^{[1
]}

Veres, D. ^{[1
]}

Parr, C. ^{[2
]}

Fryda, H. ^{[2
]}

Neuroth, M. ^{[3
]}

机构：

[1] Tech Univ Bergakad Freiberg, Inst Ceram Glass & Construct Mat, D-09599 Freiberg, Germany

[2] Kerneos, Neuilly Sur Seine, France

[3] RWE Power AG, D-50129 Bergheim, Germany

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2013年 / 33卷 / 06期

关键词：

Corrosion; Mechanical properties; Spinels; Refractories; Gasification;

D O I：

10.1016/j.jeurceramsoc.2012.11.011

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In gasifiers the reaction of a carbon feedstock with oxygen and water takes place to produce synthetic gas. The decrease of the operation temperature at the refractory lining by an innovative gasification technology permits the development of new chrome oxide free materials fulfilling economical as well as ecological aspects. Considering this aspect, spinel-containing refractory castables with increasing spinel content have been investigated according to their thermomechanical properties, phase formation as well as their resistance against corrosion attack by molten coal slag under gasification-similar conditions. In order to determine the influence of spinel and cement in the alumina-spinel castables, increasing spinel amounts and cement types has been added to alumina. In particular, MA-spinel cement has been applied. It has been shown, that the addition of MA-spinel cement to spinel-rich alumina improves the corrosion resistance against molten slag remarkably. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：1077 / 1086

页数：10

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