Dolomite attrition during fluidized-bed calcination and sulfation

被引：32

作者：

Scala, F ^{[1
]}

Salatino, P

机构：

[1] CNR, Ist Ric Combust, I-80125 Naples, Italy

[2] Univ Naples Federico II, Dipartimento Ingn Chim, Naples, Italy

来源：

COMBUSTION SCIENCE AND TECHNOLOGY | 2003年 / 175卷 / 12期

关键词：

dolomite; attrition; fluidized-bed combustion; calcination; sulfation;

D O I：

10.1080/714923284

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The attrition behavior of a dolomite during fluidized-bed calcination and sulfation was investigated in a bench-scale apparatus. Operating conditions of the bed were those typical of atmospheric bubbling fluidized-bed combustion. Batchwise experiments were carried out in order to study the influence of the chemical reactions on the parallel phenomena of particle fragmentation and abrasion in the bed. To this end changes of particle size distribution and fines elutriation rates were followed throughout conversion during both sequential and simultaneous calcination and sulfation. The study was complemented by SEM/EDX analysis of polished sulfated particle cross sections in order to relate the sorbent attrition propensity to the changes of particle morphology upon sulfation.

引用

页码：2201 / 2216

页数：16

共 19 条

[1]

Sulfation phenomena in fluidized bed combustion systems [J].