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低等级煤的热水处理:产品评价和灰沉积的主要成分分析

Datin Fatia Umar¹, Zulfahmi Zulfahmi¹, Triswan Suseno¹

¹Research Centre for Mining Technology, National Research and Innovation Agency, The Republic of Indonesia, Jalan Sutami KM 15, Tanjung Bintang 35361, Lampung, Indonesia.

|December 4, 2023

概括

水热脱水 (HTD) 通过减少灰沉积来改善低档印尼煤炭的质量. 这一过程提高了灰的化温度,使得煤炭成为绿色能源的可行桥梁.

科学领域:

* 燃烧科学与工程 * 燃烧科学与工程
* 材料科学与工程 * 材料科学与工程
* 地质化学 * 地质化学

背景情况:

* 水热脱水 (HTD) 已被研究其对煤灰沉积的影响.
* 关于HTD对煤炭燃烧参数的影响存在有限的综合数据.
* 印尼的低档煤炭由于其特点而存在利用挑战.

研究的目的:

* 确定影响HTD后灰沉积的关键参数.
* 评估HTD对煤灰化学成分和融化行为的影响.
* 评估HTD作为一种升级低档印尼煤炭的方法.

主要方法:

*分析了16个印尼煤样本的灰化学成分和灰融温度 (AFT).
* 应用统计方法,包括对对样本t试验和主要成分分析.
* 八个参数的评估:SiO2,Fe2O3,渣粘度指数 (SR),巴布考克指数 (Rs),以及在氧化条件下的各种AFT阶段 (初始变形,软化,半球,流体).

主要成果:

* 八个参数 (SiO2,Fe2O3,SR,Rs和AFT阶段) 被确定为影响HTD后灰沉积的主要参数.
* 虽然渣粘度指数 (SR) 和巴布考克指数 (Rs) 显示原煤和加工煤的趋势相似,但灰融化温度 (AFT) 在HTD后增加.
*加工煤炭呈现出更高的AFT,表明与原煤相比,灰沉积的趋势较低.

结论:

*水热脱水 (HTD) 过程有效地减少了煤炭中的灰沉积.
*HTD提高了低质量的煤炭的质量,增加了其灰化温度.
* 经过HTD处理的煤炭为优化未充分利用的印尼煤炭资源提供了途径,作为通向绿色能源的桥梁.

关键词:

低级煤炭是一种低级煤炭.在PCA中,PCA是PCA.配对样本 t 试验灰沉积的灰沉积方式热水系统是热水系统.

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