煤气化渣资源化利用技术研究进展

傅文煜; 孙文强; 王连勇

doi:10.13205/j.hjgc.202312040

煤气化渣资源化利用技术研究进展

doi: 10.13205/j.hjgc.202312040

傅文煜¹,
孙文强^1,2, ,,
王连勇^1,2

1. 东北大学热能工程系, 沈阳 110819;
2. 东北大学国家环境保护生态工业重点实验室, 沈阳 110819

基金项目:

沈阳市自然科学基金专项 (22315613)

详细信息

作者简介:
傅文煜(1996-),男,硕士研究生,主要研究方向为固体废物资源化利用。fuwenyu@stumail.neu.edu.cn

通讯作者:
孙文强(1986-),男,博士,副教授,主要研究方向为系统节能。sunwq@mail.neu.edu.cn

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- 被引次数: 0
出版历程
- 收稿日期: 2022-11-06
- 网络出版日期: 2024-03-08

ADVANCES IN RESOURCE UTILIZATION TECHNOLOGIES FOR COAL GASIFICATION SLAG

FU Wenyu¹,
SUN Wenqiang^{1,2
, ,},
WANG Lianyong^1,2

1. Department of Thermal Engineering, Northeastern University, Shenyang 110819, China;
2. State Environmental Protection Key Laboratory of Eco-Industry, Northeastern University, Shenyang 110819, China

摘要

摘要: 目前煤气化渣尚未得到有效利用,多采用填埋或堆积处理。随着煤气化渣堆存量的增加,其伴随的资源浪费及环境污染问题越来越突出。因此,迫切需要寻找高效合理的气化渣利用方式。介绍了煤气化渣的形成过程,综述了煤气化渣在建筑材料、土壤改良、吸附材料、残炭利用和催化剂载体等方面的研究现状。其中,建筑材料按照胶凝材料、砖墙材料和陶粒3个部分展开综述。对吸附材料的综述包括废水处理和CO₂吸附。残炭利用介绍了用于掺烧和催化石墨化及吸收电磁波等。最后提出了一种综合利用思路:残炭与灰渣分开利用,残炭可作为活性炭和电磁波吸收剂原料,灰渣的利用根据浸出液中重金属含量来综合确认:若毒性超标可通过免烧法制陶粒,毒性不超标则可根据其组分选择制沸石或用作胶凝材料添加剂。
- 煤气化渣 /
- 建筑材料 /
- 土壤改良 /
- 吸附材料 /
- 残炭利用 /
- 催化剂载体
Abstract: At present, coal gasification slag (CGS) has not been effectively utilized, and it is still mainly piled or landfilled. With the increase in CGS accumulation, the problems of resource waste and environmental pollution become more and more prominent. Therefore, it is urgent to find an efficient and reasonable utilization method for CGS. The formation process of CGS is introduced. The status quo of CGS applied in building materials, soil improvement, adsorption materials, utilization of residual carbon and catalyst carrier are reviewed. Among them, building materials are combed into three parts: cementitious materials, brick wall materials and ceramsite. The review of adsorption materials includes wastewater treatment and CO₂ adsorption. Utilization of residual carbon includes blending burning, catalytic graphitization, and electromagnetic wave absorption. Finally, a proposal for comprehensive CGS utilization is put forward. The residual carbon can be used separately from the ash residue. The residual carbon can be used as the raw material of activated carbon and electromagnetic wave absorber. The utilization of ash can be divided into two categories based on the heavy metal content in the leaching solution: if the toxicity exceeds the standard, the ceramic particles can be produced by the non-burning method; if the toxicity does not exceed the standard, they can be used to make zeolite or as an additive for cementitious materials according to their composition.
- coal gasification slag /
- building material /
- soil improvement /
- adsorption material /
- utilization of carbon residue /
- catalyst carriers

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