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author:

林华锋 (林华锋.) [1] | 林荣英 (林荣英.) [2] | 林博 (林博.) [3] | 郑福宝 (郑福宝.) [4]

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Abstract:

研究了铝厂污泥在弱还原气氛下对福建建兴矿煤(JX)、永安矿煤(YA)和创宏矿煤(CH)熔融特性的影响,考察了添加铝厂污泥前后JX煤灰在不同热处理温度下的矿物组成变化.结果表明,JX煤灰熔点低是1000℃以上形成低温共熔物引起的;加入铝厂污泥作为阻熔剂可提高JX煤灰的熔融温度,添加量达6%(ω)时(以煤灰基计),可使JX煤灰软化温度提高到1250℃以上,满足气化炉固态排渣对灰熔点的要求;加入阻熔剂后,在1000℃以上JX煤灰内形成了莫来石,莫来石在灰渣中起骨架作用,并延缓低温共熔物形成,从而提高了灰熔点.

Keyword:

低温共熔物 低灰熔点煤 灰熔融特性 铝厂污泥

Community:

  • [ 1 ] 福州大学化学工程与技术研究所,福建福州350108

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Source :

过程工程学报

ISSN: 1009-606X

Year: 2013

Issue: 2

Page: 241-245

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count: -1

30 Days PV: 0

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