煤气化炉渣研究现状及利用技术展望

商晓甫; 马建立; 张剑; 许丹宇; 张良运; 周金倩; 段晓雨; 张晓敏

doi:10.3969/j.issn.1674-991X.2017.06.098

煤气化炉渣研究现状及利用技术展望

doi: 10.3969/j.issn.1674-991X.2017.06.098

商晓甫^1,2,
马建立^1,2,*, ,,
张剑³,
许丹宇¹,
张良运^1,2,
周金倩^1,2,
段晓雨¹,
张晓敏¹

^1. 天津市环境保护科学研究院,天津 300191
^2. 天津环科立嘉环境修复科技有限公司,天津 300191
^3. 兖矿集团有限公司,山东济宁 273500

详细信息

作者简介:
商晓甫(1989—),男,硕士,主要从事场地修复和固体废物污染控制与资源化利用技术研究, shxiaofu@189.cn

通讯作者:
马建立 E-mail: majianguang@163.com

中图分类号: X705
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出版历程
- 收稿日期: 2017-05-21
- 刊出日期: 2017-11-20

Research status and prospects of utilization technologies of slag from coal gasification

^1. Tianjin Academy of Environmental Science, Tianjin 300191, China
^2. Tianjin Huankelijia Environment Remediation Technology Co., Ltd., Tianjin 300191, China
^3. Yancon Group Co., Ltd., Jining 273500, China

More Information

Corresponding author: Jianli MA E-mail: majianguang@163.com

摘要

摘要: 煤气化技术的应用是我国能源战略的重要一环,但同时也会产生大量的煤气化炉渣,亟需研究可批量消纳的资源化利用技术。煤炭灰分中各种矿物相在气化炉内会随温度发生变化,通过对该变化的研究和总结,描述了煤炭灰分中各种矿物相在气化炉内的物化反应过程,并指出煤炭灰分对煤气化炉渣的最终形态特点具有决定性的影响;对煤气化炉渣中残碳的组成及其变化特点的研究表明,残碳对煤气化炉渣的最终利用途径具有重要影响;此外,通过分析煤气化炉渣利用技术研究现状,指出建材化利用技术和掺烧循环流化床原料技术是目前的主流途径;最后,展望了煤气化炉渣利用技术的发展方向,并提出了煤气化炉渣用于混凝土和水泥原料以及井下回填的技术途径。
- 煤气化炉渣 /
- 灰分 /
- 残碳 /
- 研究现状 /
- 技术展望 /
- 井下回填
Abstract: Coal gasification technology has become an important part in China's energy strategy. However, a great amount of slag has been generated due to this technology, which requires urgent development of resource utilization technology to consume and reuse the slag largely. Considering that different mineral phases of coal ash content will change with the temperature in the gasifier, and based on the investigation and summarization of this change, the physicochemical reaction process of various mineral phases in gasifier is described and the decisive impact of coal ash content on final morphological characteristics of slag from coal gasification is also revealed. The research on the constituents of carbon residue in the slag and their features of change shows that final utilization approaches of the slag are significantly influenced by carbon residue. Additionally, by analyzing current research status of utilization technology of coal gasification slag, it is pointed out that the utilization as building material and mixed combustion with circulating fluid-bed raw material are the most popular approaches for slag utilization. Finally, the prospects of utilization technology for slag from coal gasification are proposed and some utilization approaches are suggested, including using as raw material of concrete or cement and being backfilled underground.
- slag from coal gasification /
- ash content /
- carbon residue /
- research status /
- technology prospect /
- underground backfill

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