流化床
吸附剂
煅烧
破损
材料科学
损耗
粒径
粒子(生态学)
结块
化学工程
扫描电子显微镜
淘洗
矿物学
冶金
复合材料
化学
吸附
催化作用
有机化学
牙科
工程类
地质学
海洋学
医学
生物化学
作者
Fabrizio Scala,Piero Salatino,R. Boerefijn,Mojtaba Ghadiri
标识
DOI:10.1016/s0032-5910(99)00185-0
摘要
The attrition behavior of two different limestones during calcination and sulphation in fluidized beds has been investigated by a combination of experimental techniques. The aim of the study is to shed light on the interactions between sorbent attrition and the change of particle mechanical and morphological properties associated with the progress of chemical reactions. A number of different experimental techniques have been used to characterize breakage mechanisms relevant to particle attrition in different sections of industrial fluidized bed reactors operated at atmospheric pressure. Primary fragmentation and abrasive attrition were characterized in situ by means of experiments carried out in a bench-scale fluidized bed reactor operated batchwise. Fragmentation under high velocity impact conditions was studied ex situ by means of single particle impact tests on pre-conditioned samples at room temperature. Scanning electron and optical microscopy analyses of the particles and EDX mapping of polished particle cross-sections were used to relate topography and internal composition of sorbent particles to the attrition mechanism.
科研通智能强力驱动
Strongly Powered by AbleSci AI