文献类型：期刊文献

中文题名：基于煤/焦组成和结构解析的水煤浆成浆性能研究

英文题名：Study on the slurry forming performance of coal water slurry based on the analysis of coal/coke composition and structure

作者：李雯[1];钟梅[1];俞音[1,2];代正华[1,3];刘洋[1];靳立军[1,4];赵辉[3];熊赛[5]

机构：[1]新疆大学化工学院省部共建碳基能源资源化学与利用国家重点实验室、新疆煤炭清洁转化与化工过程重点实验室,新疆乌鲁木齐830017;[2]自治区生态环境科学研究院,新疆乌鲁木齐830011;[3]华东理工大学国家能源煤气化技术研发中心上海煤气化工程技术研究中心,上海200237;[4]大连理工大学化工学院精细化工国家重点实验室煤化工研究所,辽宁大连116024;[5]新疆天池能源有限责任公司,新疆昌吉831500

年份：2026

卷号：54

期号：1

起止页码：80

中文期刊名：燃料化学学报(中英文)

外文期刊名：Journal of Fuel Chemistry and Technology

收录：;北大核心:【北大核心2023】；

基金：新疆自治区重点研发计划项目(2023B01013);新疆昌吉州科技计划项目(2023Z03)资助。

语种：中文

中文关键词：水煤浆;成浆性;组成结构;流变行为;水分布

外文关键词：coal water slurry;slurry ability;composition and structure;rheological behavior;water distribution

摘要：煤质是影响水煤浆成浆性能的关键,因此,本工作解析了新疆五种煤样(准东煤B2、B3、B5、黑山煤HS和红沙泉煤HSQ)及淖毛湖焦粉(XTJ)的组成结构,探究单一煤种与配煤/焦对成浆性能的影响。结果表明,HS芳香碳骨架以2-3环为主,且氧含量低,亲水性酚羟基、羰基和羧基少,其成浆性能优于其他煤样,即使成浆浓度高达70.98%,表观黏度也仅为858 mPa·s。B3和B5则因含氧官能团丰富、亲水性强,导致浆体中游离水低,同时,吸附水含量高使得煤颗粒表面的水化膜厚,阻碍了分散剂的吸附,因而成浆性能明显差。B5中添加20%的HS/XTJ,破坏了B5颗粒团簇形成的三维网络结构,并覆盖其表面的含氧官能团,不仅释放原本包裹的水,还削弱了水化膜厚度,使得浆体中游离水增加,分散剂的作用效果提升,因而煤浆浓度提高约2.40%,达到59.00%,表观黏度降低约40%,流动性亦提升至A^(+)。
Considering that coal quality is a key factor affecting the performance of coal water slurry(CWS),in this research,the composition and structure of five coal samples from the Xinjiang-Zhundong coal B2,B3,B5,Heishan coal(HS),Hongshaquan coal(HSQ)and Naomaohu coke(XTJ)-were analyzed,aiming to investigate the influence mechanisms of single coals and coal/coke blending on slurryability.The results showed that the HS,characterized by the aromatic carbon skeleton dominated by 2-3 rings,exhibited low oxygen content and few hydrophilic phenolic hydroxyl,carbonyl,and carboxyl groups,which contributed to its superior slurry performance compared to other coal samples.Even at a remarkably high slurry concentration of 70.98%,the apparent viscosity remained as low as 858 mPa·s.In contrast,B3 and B5 exhibited poor slurry performance due to their abundant oxygen-containing functional groups and strong hydrophilicity,which reduced free water content in the slurry.Additionally,the high content of adsorbed water indicated a thicker hydration film on coal particle surfaces,hindering dispersant adsorption.The addition of 20%HS/XTJ to B5 disrupted the three-dimensional network structure formed by clustered particles and covered the oxygen-containing functional groups.This process not only released previously encapsulated water but also reduced hydration layer thickness.Consequently,free water content increased within the slurry,enhancing dispersant performance.These effects collectively increased coal slurry concentration by approximately 2.40%(reaching 59.00%),reduced apparent viscosity by~40%,and improved fluidity to an A^(+)rating.