A clean disposal method of carbide slag with carbon emission reduction: Used as a flux for iron ore sintering

IF 4.1 2区材料科学 Q2 ENGINEERING, CHEMICAL

Particuology Pub Date : 2024-04-16 DOI:10.1016/j.partic.2024.03.012

Hanxiao Meng, Jiankang Wang, Xiang Liu, Kelang Jin, Lei Zhang, Hao Zhou

{"title":"A clean disposal method of carbide slag with carbon emission reduction: Used as a flux for iron ore sintering","authors":"Hanxiao Meng, Jiankang Wang, Xiang Liu, Kelang Jin, Lei Zhang, Hao Zhou","doi":"10.1016/j.partic.2024.03.012","DOIUrl":null,"url":null,"abstract":"<div><p>Limestone or quicklime is a necessary flux in the iron ore sintering process. Its production and application process will cause CO<sub>2</sub> emissions and various environmental pollution, but this has not attracted enough attention. Carbide slag (CS) is a calcium-rich solid waste produced in acetylene production, the harmless disposal of which is still incomplete, resulting in soil and groundwater pollution. This study investigated the granulation characteristics and sintering performance of the sintering mixture with different proportions of CS. The results show that replacing limestone with an appropriate proportion of CS is promising and beneficial to the formation of high-quality bonding phase. When CS accounts for 75% of the total mass of CS and limestone, the tumbler index increases by 8.10% and the comprehensive index decreases only from 100 to 96.16, which is within the acceptable range. The application of CS in iron ore sintering can achieve a clean disposal of it and a considerable carbon emission reduction, as the main component of which is Ca(OH)<sub>2</sub>.</p></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":null,"pages":null},"PeriodicalIF":4.1000,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Particuology","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1674200124000543","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}

引用次数: 0

Abstract

Limestone or quicklime is a necessary flux in the iron ore sintering process. Its production and application process will cause CO₂ emissions and various environmental pollution, but this has not attracted enough attention. Carbide slag (CS) is a calcium-rich solid waste produced in acetylene production, the harmless disposal of which is still incomplete, resulting in soil and groundwater pollution. This study investigated the granulation characteristics and sintering performance of the sintering mixture with different proportions of CS. The results show that replacing limestone with an appropriate proportion of CS is promising and beneficial to the formation of high-quality bonding phase. When CS accounts for 75% of the total mass of CS and limestone, the tumbler index increases by 8.10% and the comprehensive index decreases only from 100 to 96.16, which is within the acceptable range. The application of CS in iron ore sintering can achieve a clean disposal of it and a considerable carbon emission reduction, as the main component of which is Ca(OH)₂.

Abstract Image

查看原文本刊更多论文

可减少碳排放的碳化炉渣清洁处置方法：用作铁矿石烧结的助熔剂

石灰石或生石灰是铁矿石烧结过程中必需的助熔剂。其生产和应用过程中会造成二氧化碳排放和各种环境污染，但尚未引起足够重视。电石渣（CS）是乙炔生产过程中产生的一种富含钙的固体废弃物，其无害化处理仍不彻底，会造成土壤和地下水污染。本研究考察了不同比例 CS 烧结混合物的造粒特性和烧结性能。结果表明，用适当比例的 CS 替代石灰石是有前景的，有利于形成高质量的结合相。当 CS 占 CS 和石灰石总质量的 75% 时，翻滚指数增加了 8.10%，综合指数仅从 100 降至 96.16，在可接受范围内。由于 CS 的主要成分是 Ca(OH)2，因此在铁矿石烧结中应用 CS 可以实现铁矿石的清洁处理和可观的碳减排。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Particuology 工程技术-材料科学：综合

CiteScore

6.70

自引率

2.90%

发文量

1730

审稿时长

32 days

期刊介绍： The word ‘particuology’ was coined to parallel the discipline for the science and technology of particles. Particuology is an interdisciplinary journal that publishes frontier research articles and critical reviews on the discovery, formulation and engineering of particulate materials, processes and systems. It especially welcomes contributions utilising advanced theoretical, modelling and measurement methods to enable the discovery and creation of new particulate materials, and the manufacturing of functional particulate-based products, such as sensors. Papers are handled by Thematic Editors who oversee contributions from specific subject fields. These fields are classified into: Particle Synthesis and Modification; Particle Characterization and Measurement; Granular Systems and Bulk Solids Technology; Fluidization and Particle-Fluid Systems; Aerosols; and Applications of Particle Technology. Key topics concerning the creation and processing of particulates include: -Modelling and simulation of particle formation, collective behaviour of particles and systems for particle production over a broad spectrum of length scales -Mining of experimental data for particle synthesis and surface properties to facilitate the creation of new materials and processes -Particle design and preparation including controlled response and sensing functionalities in formation, delivery systems and biological systems, etc. -Experimental and computational methods for visualization and analysis of particulate system. These topics are broadly relevant to the production of materials, pharmaceuticals and food, and to the conversion of energy resources to fuels and protection of the environment.

文献相关原料

公司名称	产品信息	采购帮参考价格