钢渣改性用于烟气脱硫研究进展

doi:10.19964/j.issn.1006-4990.2021-0778

Abstract

Abstract:

Steel slag has the structural characteristics of loose and porous，and rich in alkaline oxides such as CaO and MgO，so it is highly alkaline in the solution and has strong acid neutralization ability，which can effectively remove sulfur dioxide from flue gas and realize effective desulfurization.At present，steel slag-based desulfurization absorption materials are mainly used in wet desulfurization processes.The basic mechanism is the mass transfer between the gas phase and the liquid phase，which contains three steps：1）SO₂ enters the liquid phase from the gas phase；2）the alkaline substance is dissolved out of steel slag，and 3）chemical reaction occurs between SO₂and alkaline substances in the liquid phase.However，the overall desulfurization efficiency is mainly affected by the first two steps.The main factors include inlet SO₂ mass concentration，liquid-gas ratio，slurry pH，reaction temperature，steel slag particle size and so on.However，at present，the research on the influence mechanism of other components in steel slag except CaO and MgO on the desulfurization effect is not enough.Therefore，it is necessary to actively explore the synergistic mechanism of different chemical components in steel slag in the desulfurization absorption process，consolidate the theoretical basis of steel slag for flue gas desulfurization and then realize the industrial application of steel slag desulfurization.

Key words: steel slag, modification, gasdesulfurization, mechanism

CLC Number:

X701.3

DU Xiaoyan,LONG Hongming,LIU Xiuyu,ZHU Qingming,HAN Weisheng. Research progress on flue gas desulfurization by modification of steel slag[J]. Inorganic Chemicals Industry, 2022, 54(11): 39-44.

Figures/Tables 3

Table 1

Research on desulfurization of modified steel slag"

改性方式	改性途径	组分，质量分数/%	反应器	反应条件	脱硫率/%
物理改性	粉磨至75 μm	CaO：45~50；MgO：4~5；Fe₂O₃：7~10；FeO：10~18；SiO₂：10~11；MnO：0.5~2.5；Al₂O₃： 1~4；P₂O₅：3~5；f-CaO：5~11	填料塔	pH＝8~11；液气比为10~24 L/m³；浆液质量分数为4％	60^[11]
	粒度＜45 μm	CaO：38.02；MgO：7.62；FeO：9.3；SiO₂：12.47；Fe：15.92；MnO：2.63；Al₂O₃：6.99	吸收塔	烟气流量为34.84万m³/h；入口SO₂质量浓度为7 089.85 mg/m³	98.16^[8]
	粒度＜75 μm	CaO：59.16；MgO：3.22；Fe₂O₃：10.75；SiO₂：12.79；SO₃：0.77；MnO：3.22；Al₂O₃：5.89；其他：6.85	鼓泡反应器	反应温度为30 ℃、浆液质量分数为8%；烟气流量为400 mL/min	95^[12]
	比表面积=400 m²/kg	CaO：52.35；MgO：10.85；Fe：4.91；S：0.294	循环硫化床	入口SO₂质量浓度为900 mg/m³；钢渣加入量为1 300 kg/h；喷水流量为360 L/min	72^[13]
	粉磨至75 μm	CaO：＞45	再生池	钢渣加入量为40 g；入口SO₂质量浓度为 2 400 mg/m³；烟气流量为0.05 m³/h；pH=7~8	80^[14]
化学改性	碱式碳酸镁与钢渣按10∶1质量比混合	CaO：46.83；MgO：7.61；Fe₂O₃：1.24；SiO₂： 32.28；MnO：1.00；Al₂O₃：8.73	鼓泡反应装置	反应温度为100 ℃；搅拌速率为300 r/min；质量比为10∶1；粒径≥0.074 mm；反应时间＜150 min	80^[6]
	粒径为75 μm钢渣与2 mmol/L 柠檬酸反应2 h	CaO：43.25；Fe₂O₃：14.99；SiO₂：22.85；Al₂O₃：6.32；MnO：2.87； MgO：4.26；P₂O₅：1.9	鼓泡反应器	钢渣浆液质量分数为4%；入口SO₂质量浓度为1 500 mg/m³	90^[15]
	粒径为75 μm钢渣与质量分数为27%H₂SO₄混合，调节至浆液pH为5.5~6.0	CaO：41.38；MgO：6.5；Fe₂O₃：17.67；SiO₂： 17.62；SO₃：1.17；MnO：1.13；Al₂O₃：8.16； MnO：1.13	鼓泡搅拌装置	反应温度为40 ℃；浆液pH=5.5；氧化度OR=0.8	100^[16]
	10 μm钢渣与活性炭按质量比1∶2混合，以400 r/min 速率在行星式球磨机中机械搅拌1 h	SiO₂：44.90；CaO：21.16；Al₂O₃：15.76； Fe₂O₃：11.10；MgO：2.41	固定床反应器	入口SO₂体积分数为0.06%；气体流量为 600 mL/min；吸附剂质量为6 g；体积空速为 3 600 h^-1；反应温度为120 ℃	79^[17]
	75 μm钢渣与水菱镁按质量比 10∶1混合，在300 r/min速率下搅拌一定时间	—	鼓泡器	入口SO₂质量浓度为2 000 mg/m³；浆液pH= 5；浆液浓度为0.5 mol/L；烟气流量为 50 mL/min；反应温度为60 ℃；搅拌速率为 100 r/min；鼓泡深度为2.5 cm	98.55^[18]

Table 1

Fig.1

Table 2

References 25

1	杨丽韫,陈军,袁鹏,等.钢渣去除废水中重金属离子的研究综述[J].钢铁,2017,52(8):1-9.
	YANG Liyun, CHEN Jun, YUAN Peng, et al.Research review of heavy metal ions removal from waste water by steelmaking slag[J].Iron ＆ Steel,2017,52(8):1-9.
2	张顺雨.钢渣成分在烟气脱硫过程中的协同作用与机理[D].唐山：华北理工大学，2017.
	ZHANG Shunyu.Synergistic effect and mechanism of steel slag composition in flue gas desulfurization[D].Tangshan：North China University of Science and Technology，2017.
3	魏建鹏.石灰石-石膏湿法脱硫系统节能降耗策略研究[C]//中国环境科学学会2021年科学技术年会——环境工程技术创新与应用分会场.天津：《环境工程》编辑部，2021.
4	苏少龙,曲晓龙,钟读乐,等.工业烟气脱硫工艺进展[J].无机盐工业,2019,51(11):13-15，87.
	SU Shaolong, QU Xiaolong, ZHONG Dule, et al.Progress of industrial flue gas desulfurization process[J].Inorganic Chemicals Industry,2019,51(11):13-15，87.
5	龙勇.高硫煤烟气氨法脱硫装置升级改造[J].氮肥与合成气,2021,49(11):14-16.
	LONG Yong.Upgrading of high-sulfur coal flue gas ammonia desulfurization unit[J].Nitrogenous Fertilizer ＆ Syngas,2021,49(11):14-16.
6	樊河雲,李瑛,赖立践,等.钢渣/碱式碳酸镁新型复合脱硫剂的性能研究[J].工业加热,2017,46(4):47-51.
	FAN Heyun, LI Ying, LAI Lijian, et al.The desulfurization performance research of new-type composite desulphurizer of basic magnesium carbonate desulfurization agent with steel slag[J].Industrial Heating,2017,46(4):47-51.
7	张顺雨,贵永亮,宋春燕,等.钢渣烧结烟气脱硫现状[J].矿产综合利用,2018(1):1-5.
	ZHANG Shunyu, GUI Yongliang, SONG Chunyan, et al.Present situation of sintering flue gas desulfurization with steel slag[J].Multipurpose Utilization of Mineral Resources,2018(1):1-5.
8	张国成,白晓光,邬虎林,等.钢渣脱硫剂用于湿法石灰石-石膏法脱硫工艺的试验研究[J].钢铁研究学报,2020,32(7):647-653.
	ZHANG Guocheng, BAI Xiaoguang, WU Hulin, et al.Experimental study on desulfurization process of wet limestone-gypsum with steel slag desulfurizer[J].Journal of Iron and Steel Research,2020,32(7):647-653.
9	王高峰,王义忠,於珩,等.转炉钢渣用于烟气脱硫实践研究[C]//陕西省金属学会.第五届全国冶金渣固废回收及资源综合利用、节能减排高峰论坛.昆明：2020.
10	王会刚,彭犇,岳昌盛,等.钢渣改性研究进展及展望[J].环境工程,2020,38(5):133-137，106.
	WANG Huigang, PENG Ben, YUE Changsheng, et al.Research progress and prospect of steel slag modification[J].Environmental Engineering,2020,38(5):133-137，106.
11	丁希楼,郭应春,唐胜卫,等.废钢渣粉渣湿法脱硫工艺实验研究[J].环境工程,2009,27(3):99-102.
	DING Xilou, GUO Yingchun, TANG Shengwei, et al.Experimental study on wet flue gas desulfurization with scrap slag powder residue[J].Environmental Engineering,2009,27(3):99-102.
12	孟子衡,王晨晔,王兴瑞,等.焦炉烟气钢渣湿法联合脱硫脱硝试验研究[J].洁净煤技术,2020,26(6):210-216.
	MENG Ziheng, WANG Chenye, WANG Xingrui, et al.Experimental study on simultaneous desulfurization and denitrification by steelmaking slag for coke oven flue gas[J].Clean Coal Technology,2020,26(6):210-216.
13	徐露,范鼎东,夏能伟,等.钢渣微粉用于烧结烟气干法脱硫的试验研究[J].烧结球团,2015,40(3):48-52.
	XU Lu, FAN Dingdong, XIA Nengwei, et al.Experimental study on dry sintering flue gas desulfurization with steel slag powder[J].Sintering and Pelletizing,2015,40(3):48-52.
14	邱伟,刘盛余,能子礼超,等.氢氧化钠-钢渣双碱法烧结烟气脱硫工艺[J].环境工程学报,2013,7(3):1095-1100.
	QIU Wei, LIU Shengyu, NENG Zilichao, et al.Study of NaOH-steel slag double alkali sintering flue gas desulphurization process[J].Chinese Journal of Environmental Engineering,2013,7(3):1095-1100.
15	刘盛余,邱伟,汪雪婷,等.柠檬酸强化钢渣湿法烧结烟气脱硫及机理[J].环境工程学报,2015,9(3):1323-1328.
	LIU Shengyu, QIU Wei, WANG Xueting, et al.Mechanism and process of steel slag agglomeration gas desulfurization enhanced by citric acid[J].Chinese Journal of Environmental Engineering,2015,9(3):1323-1328.
16	孟子衡.低温烟气钢渣联合脱硫脱硝过程强化工艺与机理研究[D].北京：中国科学院大学（中国科学院过程工程研究所），2020.
	MENG Ziheng.Intensification technology and mechanism for simultaneous desulphurization and denitration from low-temperature flue gas by steel slag[D].Beijing：Institute of Process Engineering，Chinese Academy of Sciences，2020.
17	杨小白,韩云龙,李迎根,等.活性炭混合钢渣烧结烟气脱硫脱硝实验研究[J].过程工程学报,2019,19(2):440-446.
	YANG Xiaobai, HAN Yunlong, LI Yinggen, et al.Experimental study on desulfurization and denitration of sintering flue gas by activated carbon mixed with steel slag[J].The Chinese Journal of Process Engineering,2019,19(2):440-446.
18	王彦斐.添加钢渣的水菱镁复合脱硫剂脱硫性能及实验研究[D].昆明：昆明理工大学，2019.
	WANG Yanfei.Desulfurization performance and experimental study of hydromagnesite composite desulfurizer added with steel slag[D].Kunming：Kunming University of Science and Technology，2019.
19	陈捷.Na₂CO₃（CaCO₃）/铁渣复合脱硫剂脱硫性能的研究[D].昆明：昆明理工大学，2016.
	CHEN Jie.Study on desulfurization performance of Na₂CO₃（CaCO₃）/iron slag composite desulfurizer[D].Kunming：Kunming University of Science and Technology，2016.
20	刘盛余,邱伟,吴萧,等.鼓泡塔中钢渣湿法烧结烟气脱硫过程及机理[J].应用基础与工程科学学报,2017,25(1):46-55.
	LIU Shengyu, QIU Wei, WU Xiao, et al.Mechanism and process of sintering flue gas desulfurization by steel slag in bubbling tower[J].Journal of Basic Science and Engineering,2017,25(1):46-55.
21	张顺雨,贵永亮,袁宏涛,等.钢渣用于烧结烟气脱硫反应机理分析[J].铸造技术,2016,37(12):2650-2653.
	ZHANG Shunyu, GUI Yongliang, YUAN Hongtao, et al.Mechanism analysis of desulfurization with steel slag for sintering flue gas[J].Foundry Technology,2016,37(12):2650-2653.
22	LIU Xiaolong, YE Meng, WANG Xue, et al.Gas-phase and particle-phase PCDD/F congener distributions in the flue gas from an iron ore sintering plant[J].Journal of Environmental Sciences,2017,54: 239-245.
23	CHEN Shuhao, WANG Xinhua, HE Xiaofei, et al.Industrial application of desulfurization using low basicity refining slag in tire cord steel[J].Journal of Iron and Steel Research,International，2013,20(1):26-33.
24	兰颖,马平.湿法烟气脱硫系统脱硫效率的影响因素分析[J].电力科学与工程,2013,29(7):58-63.
	LAN Ying, MA Ping.Analysis of the factors of desulfurization efficiency in wet flue gas desulfurization system[J].Electric Power Science and Engineering,2013,29(7):58-63.
25	王丽秋,王小方,李会泉,等.焦炉烟气湿法钢渣联合脱硫脱硝工艺及机理研究[J].燕山大学学报,2016,40(4):348-354.
	WANG Liqiu, WANG Xiaofang, LI Huiquan, et al.Research on technical method and mechanism of combined desulfurization and denitrification of flue gas from coking furnace with steel slag[J].Journal of Yanshan University,2016,40(4):348-354.

成分	w（CaO）	w（Al₂O₃）	w（MgO）	w（SiO₂）	w（SO₃）
脱硫前钢渣	43.25	6.32	4.26	22.85	0.37
脱硫后钢渣	40.23	5.99	4.21	20.73	6.13

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Research progress on flue gas desulfurization by modification of steel slag

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