Study of coal ash deposition in an entrained flow reactor: Assessment of traditional and alternative slagging indices

被引：44

作者：

Barroso, J. ^{[1
]}

Ballester, J. ^{[1
]}

Pina, A. ^{[1
]}

机构：

[1] Univ Zaragoza, Fluid Mech Grp, LITEC, Zaragoza 50018, Spain

来源：

FUEL PROCESSING TECHNOLOGY | 2007年 / 88卷 / 09期

关键词：

slagging; coal ash deposition; entrained flow reactor; coal blends; slagging empirical indices;

D O I：

10.1016/j.fuproc.2007.04.008

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The slagging behaviour of 12 different coals/blends was analysed in an entrained flow reactor and compared with predictions using a wide range of empirical indices. Large discrepancies were obtained in most cases, both with respect to experimental results (in terms of capture efficiency and energy-based growth rate) and among the different indices. A new approach is proposed, in which the traditional expressions are modified to account for other parameters with influence on deposition phenomena: aerodynamic diameter and the total mass of mineral matter injected with the coal. Each of these factors resulted in improved correlations between predictions and experimental observations for all the indices analysed, which together with the good agreements achieved with several of the new indices are thought to confirm the validity of the approach proposed. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：865 / 876

页数：12

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