提高兰炭灰熔融温度的研究  

Research on increasing the ash fusion temperature of semi-coke

作　　者：林博[1] 林荣英[1] 郑福宝[1] 杨攀[1] 

机构地区：[1]福州大学石油化工学院,福建福州350116

出　　处：《福州大学学报（自然科学版）》2014年第6期935-939,共5页Journal of Fuzhou University(Natural Science Edition)

基　　金：福建省自然科学基金资助项目(2014J05059);福州大学科技发展基金资助项目(2011-XQ-10)

摘　　要：研究粘土1和粘土2在弱还原气氛下对兰炭灰熔融特性的影响,并通过XRD和SEM-EDX重点考察了添加粘土1前后兰炭灰在不同热处理温度下的矿物演变.结果表明,加入15%粘土1或14%粘土2后,兰炭灰熔点均可提高至1 250℃以上;兰炭灰熔点低的主要原因是形成了低温共熔物,而加入粘土1后,灰渣在熔融过程中生成莫来石,莫来石既能起到骨架作用,又延缓低温共熔物的形成,从而提高灰熔点.This paper researches the influence of clayl and clay2 in the melting characteristics of semi - coke under weakly reducing atmosphere, and the change of mineral compositions under various tem- peratures before and after addition of clayl by XRD and SEM - EDX. The results show that after adding 15% clayl or 14% clay2, the ash fusion point of semi - coke is increased to 1 250 ℃ ; the main reason of low melting point of semi - coke is formed a low temperature eutectic, and after adding clayl, mullite is generated in the process of ash melting, not only play a role in skeleton, but also de- lay the formation of low temperature eutectic, thus improving the softening temperature.

关 键 词：兰炭 阻熔剂 灰熔融特性 

分 类 号：TQ53[化学工程—煤化学工程]