Pilot-Scale Investigation of the Influence of Coal−Biomass Cofiring on Ash Deposition
Pilot-Scale Investigation of the Influence of Coal−Biomass Cofiring on Ash Deposition
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DOI：
10.1021/ef010128h
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发表时间：
2002-02
期刊：
影响因子：
5.3
通讯作者：
A. Robinson;Andrea Junker;L. Baxter
中科院分区：
文献类型：
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作者：
A. Robinson;Andrea Junker;L. Baxter
将生物质与煤混合燃烧是减少现有燃煤电厂二氧化碳净排放量的一个有希望的短期选择。本文以煤粉锅炉过热区为例，研究了生物质与煤共烧对灰沉降的影响。实验用八种不同的混合燃料进行，三种类型的烟煤，亚烟煤，两种类型的稻草，柳枝稷和木材。对于每一种燃料，未混合燃料的参考试验建立了一个基线，用以比较共燃试验的结果。共混燃料的沉积速率介于未混合燃料的测量沉积速率之间。因此，将秸秆与煤混合可以降低未混合秸秆燃烧时观察到的高沉积率，而将煤与木材共燃烧的沉积率略低于未混合煤燃烧时的沉积率。在共烧过程中，生物质与煤的主要相互作用是…
Cofiring biomass with coal is a promising short-term option for reducing the net CO2 emissions from existing coal-fired power plants. This paper examines the effects of cofiring biomass and coal on ash deposition under conditions representative of those found in the superheater region of pulverized-coal boilers. Experiments were conducted with blends of eight different fuelsthree types of bituminous coal, sub-bituminous coal, two types of straw, switchgrass, and wood. For each fuel, reference tests of unblended fuel establish a baseline against which to compare the results from the cofiring tests. The deposition rates for the cofire blends are between the measured deposition rates of the unblended fuels. Therefore, blending straw with coal reduces the high deposition rates observed while firing unblended straw, and cofiring coal with wood results in slightly lower deposition rates than those that occur while firing unblended coal. The primary interaction between the biomass and coal during cofiring is the...