准东煤AAEM元素赋存特性研究进展  

Research Progress on the Occurrence Characteristics of AAEM Elements in Zhundong Coal

作　　者：王伟[1] 郭欣维 乌晓江[2] 江砚池 王为术[1] 刘军 范存江 卓兰婷 WANG Wei;GUO Xinwei;WU Xiaojiang;JIANG Yanchi;WANG Weishu;LIU Jun;FAN Cunjiang;ZHUO Lanting(School of Energy and Power Engineering,North China University of Water Resources and Electric Power,Zhengzhou 450045,Henan Province,China;School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[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

出　　处：《动力工程学报》2025年第2期214-224,共11页Journal of Chinese Society of Power Engineering

基　　金：国家自然科学基金资助项目(52176121);河南省重点研发与推广资助专项项目(232102320206);上海浦江人才计划资助项目(22PJ1405900);河南省高校人文社会科学研究资助项目(2024-ZDJH-282)。

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。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：准东煤 AAEM元素 赋存形态 

分 类 号：TQ533[化学工程—煤化学工程]