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Research Progress on the Occurrence Characteristics of AAEM Elements in Zhundong Coal
- Chinese Journal of Power Engineering Vol. 45, Issue 2, Pages: 214-224(2025)
- 作者机构：
1. 华北水利水电大学 能源与动力工程学院,河南,郑州,450045
2. 上海交通大学 机械与动力工程学院,上海,200240
- 作者简介：
- 基金信息：
DOI：10.19805/j.cnki.jcspe.2025.230751
CLC： TQ533-
Published Online：15 February 2025，
Published：2025
- 稿件说明：
移动端阅览
王伟,郭欣维,乌晓江,江砚池,王为术,刘军,范存江,卓兰婷. 准东煤AAEM元素赋存特性研究进展动力工程学报, 2025, 45(2): 214-224 https://doi.
org/10.19805/j.cnki.jcspe.2025.230751
王伟,郭欣维,乌晓江,江砚池,王为术,刘军,范存江,卓兰婷. 准东煤AAEM元素赋存特性研究进展动力工程学报, 2025, 45(2): 214-224 https://doi. DOI： 10.19805/j.cnki.jcspe.2025.230751.
org/10.19805/j.cnki.jcspe.2025.230751 DOI：
摘要
准东煤中高含量的碱金属与碱土金属(AAEM)元素是锅炉受热面严重沾污和结渣的根本原因。在高碱煤燃烧过程
煤中AAEM元素的赋存形态及其在燃烧过程中的升华和冷凝行为对炉内煤灰在受热面表面的沾污结渣具有重要影响。对现有的准东煤AAEM元素赋存形态分析方法进行了研究
并且探讨了其优点和局限性。基于准东煤中水溶态、醋酸铵溶态、酸溶态和酸不溶态AAEM元素的分布
对准东煤AAEM元素赋存形态进行了重新分类
主要分为有机结合态、亲有机结合态和矿物组合态。新分类方法有助于深入理解AAEM元素与矿物质、有机质的关联
但是要完整且准确地测定准东煤中有机结合态AAEM元素的具体存在状态
当前的方法和技术仍存在一定的局限性
因此需要开发精度更高的测试方法和分析技术。
Abstract
The high content of alkali metal and alkali earth metal (AAEM) elements in Zhundong coal is the root cause of serious fouling and slagging of boiler heating surfaces. In the combustion process of high-alkali coal
the occurrence characteristics of AAEM elements in coal and its sublimation and condensation behaviors during combustion significantly influence the fouling and slagging of coal ash on the heating surfaces in the furnace. In this paper
the existing methods for analyzing the occurrence characteristics of AAEM elements in Zhundong coal were studied
and their advantages and limitations were discussed. Based on the distribution of AAEM elements in water-soluble
ammonium acetate soluble
acid-soluble and acid-insoluble states
the occurrence characteristics of AAEM elements in Zhundong coal were reclassified
which were mainly divided into organic binding
organophilic binding and mineral combination states. The new classification method is helpful to further understand the association of AAEM elements with minerals and organic matters. However
in order to completely and accurately determine the specific existence state of organic binding AAEM elements in Zhundong coal
the current methods and techniques still have some limitations
so it is necessary to develop more accurate test methods and analysis techniques.
关键词
Keywords
references
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