文献类型：期刊文献

中文题名：高温下快速和慢速热解神府煤焦的理化性质

英文题名：Physical and chemical properties of slow and rapid heating chars at elevated temperatures

作者：吴诗勇[1];顾菁[1];李莉[1];吴幼青[1];高晋生[1]

机构：[1]华东理工大学资源与环境工程学院,上海200237

年份：2006

卷号：31

期号：4

起止页码：492

中文期刊名：煤炭学报

外文期刊名：Journal of China Coal Society

收录：CSTPCD;;EI(收录号：20063610101738);Scopus;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金：国家重点基础研究规划基金资助项目(2004CB217704)

语种：中文

中文关键词：煤焦;高温;快速热解;理化性质

外文关键词：coal char; high temperature; rapid heating; physical and chemical properties

摘要：对慢速制焦温度为950—1400℃和快速制焦温度为950—1500℃的条件下所得神府煤焦的理化性质进行了研究，主要考察了制焦温度和快速、慢速2种热解速率对煤焦的元素组成、比表面积、石墨化程度和矿物质的影响．结果显示：慢速热解焦和快速热解焦表现出不同的物理和化学性质，二者的C和H含量明显不同；随热解温度的增加，慢速热解焦的比表面积减少，而快速热解焦的比表面积增大；慢速热解煤焦比快速热解煤焦的石墨化程度大；前者的矿物质在热解温度高于1100℃时，发生熔融并团聚成更大的球形颗粒，而后者的矿物质在热解温度高于1300℃时，熔融成小球，稍有团聚的趋势，但没有团聚成更大的球形颗粒．
Shenfu coal chars were prepared under the conditions of slow heating temperature from 950 - 1 400℃ and rapid heating temperature from 950 - 1 500℃. The effects of heating conditions on physical and chemical properties of coal char, which included elemental composition, BET specific surface area, pore structure, the degree of graphitization and mineral matter fusion, were mainly investigated. The results showed that physical and chemical properties of slow heating chars （SHC） were different from those of rapid heating chars （RHC）. Firstly, the contents of carbon and hydrogen of SHC were obviously different from that of RHC. Secondly, with the increase of heating temperatures, porosity and specific surface area of SHC decreased, while those of RHC increased. Thirdly, the degree of graphitization of SHC was higher than that of RHC. Fourthly, the mineral matter of SHC began to fuse above 1 100℃, and then was integrated into bigger spherical granules, whereas, that of RHC began to fuse above 1 300℃, and presented slight agglomerating tendency, but not integrated into bigger spherical granules.