Impacts of typical mineral matter in Zhundong coal on formation of particulate matter

XU Yishu; LIU Xiaowei; ZHANG Penghui; GUO Junzhe; HAN Jinke; WANG Hao; WEI Siyi

doi:10.11949/j.issn.0438-1157.20161380

您当前的位置：

首页 >

文章列表页 >

Impacts of typical mineral matter in Zhundong coal on formation of particulate matter

更新时间：2025-12-10

- Impacts of typical mineral matter in Zhundong coal on formation of particulate matter
- CIESC Journal Issue 4, Pages: 1558-1565(2017)
- 作者机构：
  
  华中科技大学煤燃烧国家重点实验室,湖北,武汉,430074
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20161380
  CLC： Q028.8
- Online First：05 April 2017，
  
  Published：05 April 2017
- 稿件说明：
移动端阅览
XU Yishu, LIU Xiaowei, ZHANG Penghui, et al. Impacts of typical mineral matter in Zhundong coal on formation of particulate matter[J]. CIESC Journal, 2017, (4): 1558-1565.
DOI：

XU Yishu, LIU Xiaowei, ZHANG Penghui, et al. Impacts of typical mineral matter in Zhundong coal on formation of particulate matter[J]. CIESC Journal, 2017, (4): 1558-1565. DOI： 10.11949/j.issn.0438-1157.20161380.

摘要

在高温沉降炉上，进行了高氯高碱准东煤、低氯低碱准东煤和由低氯准东煤处理制得的调质准东煤在含不同浓度HCl的模拟空气中的燃烧实验。利用DLPI进行了颗粒物的分级收集，对其质量粒径分布和矿物元素分布特性进行了讨论分析。结果表明，高氯高碱准东煤的超细模态颗粒物生成量和峰值粒径均明显大于其他两种煤，其主要成分为Na和Cl。Ca的迁移特性与其形态密切相关，原煤中的Ca主要以无机矿物形式存在，主要迁移进入粗颗粒物而对超细颗粒物生成贡献较小。气氛中加入不同浓度HCl气体后，低钠煤和调质煤产生细颗粒物中Cl含量均升高，但生成量无显著变化。表明HCl并未显著促进矿物的气化，但会促进NaCl形式矿物蒸气的形成，进而促进成核形成超细颗粒物。

Abstract

In the present study

three Zhundong coals with different contents of chlorine and AAEMs (alkali and alkali earth metals) were burned in a high temperature drop tube furnace. The derived particulate matter (PM) was collected with DLPI (Dekati Low Pressure Impactor) sampling system and discussions were performed based on the PM yield and composition. The coal with high contents of chlorine and AAEMs produced ultrafine PM with high contents of Na and Cl

which was of both higher mass yields and larger peak sizes than that of the other coal. The partitioning of Ca into PM was related to its mode of occurrence in coal. Ca in the two untreated coal was mainly migrated into coarse PM and contributed little to the formation of ultrafine PM as it was mostly in inorganic minerals in coal. The extra added HCl had no significant effects on the yield of ultrafine PM while resulted in much higher contents of Na and Cl. The results showed that increasing HCl would not significantly promote the mineral vaporization while it accelerated the formation of chlorides

which nucleated more easily and formed ultrafine PM.

关键词

Keywords

references

Views

245

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Effect of SCR on particulate matter emissions from a coal-fired boiler

Migration and distribution characteristics of trace elements in 220 MW cogeneration boiler

polycyclic aromatic hydrocarbons from household coal combustionsEmissions of particulate matter and

Life cycle carbon emission and environment assessment of pre-combustion IGCC power plant

Effect of Ca species on sintering characteristics of Zhundong coal ash

Related Author

LIU Fangqi

YU Dunxi

WU Jianqun

LEI Yu

WEN Chang

XU Minghou

WANG Chao

LIU Xiaowei

Related Institution

State Key Laboratory of Coal Combustion, Huazhong University of Science & Technology

The Research Center for Clean Coal Technology & Engineering, Yankuang Group Co.

Yankuang Technology Co., Ltd.

Shandong Provincial Engineering & Technology Research Center for Clean Coal Utilization and Combustion Pollution Prevention

Institute of Process Engineering, Chinese Academy of Sciences

⁰