钢渣处理技术及资源化利用研究进展

安胜利; 黄兰; 柴轶凡; 陈宇昕; 彭军; 张芳

doi:10.13228/j.boyuan.issn0449-749x.20240557

钢铁 ›› 2025, Vol. 60 ›› Issue (3) : 1-12. DOI: 10.13228/j.boyuan.issn0449-749x.20240557

综合论述

钢渣处理技术及资源化利用研究进展

安胜利^1,2,3, 黄兰^1,2,3, 柴轶凡^1,3, 陈宇昕^1,2,3, 彭军^1,2,3, 张芳^1,3

作者信息 +

Research progress of steel slag treatment technology and recycling utilization

安胜利^1,2,3, 黄兰^1,2,3, 柴轶凡^1,3, 陈宇昕^1,2,3, 彭军^1,2,3, 张芳^1,3

Author information +

文章历史 +

摘要

钢铁工业在经济社会发展过程中占有十分重要的地位。随着中国钢铁产量的持续增长,钢渣的后续处理问题日益突出。由于钢渣稳定性差、耐磨性高和胶凝性低等问题,钢渣的处理和资源化利用受到限制,大量钢渣被堆放处理,不仅占用土地资源,而且可能对周围环境造成危害。在“绿色可持续发展”和“碳中和”背景下,为满足现代钢企对环保和资源再利用的迫切需求,发展钢渣的处理和资源化利用技术势在必行。综述了钢渣处理技术和资源化利用的研究进展,总结了目前主流的钢渣处理工艺,包括预处理工艺、钢渣改性工艺和湿法处理工艺。详细阐述了不同处理工艺的技术特点、资源回收及产品潜在的应用途径,分析对比了不同处理工艺的技术优势。此外,还讨论分析了钢渣应用于环境修复领域的探索和研究进展,指出了钢渣在该领域的应用潜能和未来的研究方向。中国钢渣资源化利用仍面临着预处理和高质化应用领域拓展技术突破等诸多问题。旨在通过对钢渣处理技术以及资源化利用的综述分析,提出未来钢渣研究在关注显热的充分利用、铁等有价资源回收的同时,更应着重关注和加强钢渣成分和物相演变调控等基础研究。在此基础上,应锚定环境修复、新材料及高值化产品的制备等方向开发新技术,拓展钢渣高质化利用,提高钢渣综合利用率。

Abstract

The iron and steel industry occupies a crucial position in the process of economic and social development. With the continuous growth of China's iron and steel production, the subsequent treatment problem of steel slag has become increasingly prominent. Due to the problems of poor stability, high abrasion resistance and low cementation of steel slag, the treatment and resource utilization of steel slag are restricted, and a large amount of steel slag is piled up for treatment, which not only occupies land resources, but also harms the surrounding environment and residents' lives. In the context of "green sustainable development" and "carbon neutral", in order to meet the urgent needs of modern steel mills for environmental protection and resource reuse, the development of steel slag treatment and resource utilization technology is imperative. It reviews the research progress of steel slag treatment technologies and resource utilization, and introduces the current mainstream treatment technology of steel slag, including pretreatment process, steel slag modification process and wet treatment process. The technical characteristics of different treatment processes, resource recovery and potential application pathways of products are elaborated in detail, and the technical advantages of different treatment processes are analyzed. In addition, the exploration and research progress of steel slag in the field of environmental remediation are discussed and analyzed, pointing out the application potential of steel slag in this field and the future research direction. The resource utilization of steel slag in China is still facing many problems such as pre-treatment and technological breakthroughs for the expansion of high-quality application areas. The purpose is to analyze the overview of steel slag treatment technology and resource utilization, and to propose that the future research on steel slag, while focusing on the full use of sensible heat and the recovery of valuable resources such as iron, should focus on and strengthen the basic research on the regulation of the evolution of steel slag composition and physical phase. On this basis, new technologies should be developed in the direction of environmental remediation, preparation of new materials and high-value products to expand the high-quality utilization of steel slag and improve the comprehensive utilization rate of steel slag.

关键词

钢渣 / 预处理技术 / 改性工艺 / 湿法工艺 / 技术优势 / 资源化利用 / 高值化产品 / 环境保护

Key words

steel slag / pre-treatment technology / modification process / wet process / technical advantage / resource utilization / high-value product / environmental protection

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安胜利, 黄兰, 柴轶凡, 等. 钢渣处理技术及资源化利用研究进展[J]. 钢铁, 2025, 60(3): 1-12 https://doi.org/10.13228/j.boyuan.issn0449-749x.20240557

AN Shengli, HUANG Lan, CHAI Yifan, et al. Research progress of steel slag treatment technology and recycling utilization[J]. Iron and Steel, 2025, 60(3): 1-12 https://doi.org/10.13228/j.boyuan.issn0449-749x.20240557

参考文献

[1] GUO J L,BAO Y P,WANG M.Steel slag in China:treatment,recycling,and management[J].Waste Management,2018,78:318.
[2] World Steel Association. December2023 crude steel production and 2023 global crude steel production totals[DB/OL].[2024-10-25].https://worldsteel.org/zh-hans/media/press-releases/2024/december-2023-crude-steel-production-and-2023-global-totals/.
[3] 张玉婷,郑琪,潘仕文,等. 钢渣-矿渣-钡渣基胶凝材料水化过程强化[J].中国冶金,2022,32(3):106.(ZHANG Y T,ZHENG Q,PAN S W,et al. Strengthening the hydration process of steel slag/granulated blast furnace slag/barium slag cementitious materials[J].China Metallurgy,2022,32(3):106.)
[4] 杨光,杨志强,石磊,等. 钢渣资源化利用与实践[J].冶金能源,2024,43(5):37.(YANG G,YANG Z Q,SHI L,et al. Resource utilization and practice of steel slag[J].Energy for Metallurgical Industry,2024,43(5):37.)
[5] 张延平,赵红军,王东,等. 钢渣热闷余热回收技术与供暖(发电)应用[J].冶金能源,2023,42(1):49.(ZHANG Y P,ZHAO H J,WANG D,et al. Application of steel slag heat recovery technology and heating (power generation)[J].Energy for Metallurgical Industry,2023,42(1):49.)
[6] EUROSLAG[DB/OL].[2024-10-25].https://www.euroslag.com/products/statistics/statistics-2022/.
[7] United States Geological Survey.2022 Iron and Steel Slag Statistics and Information[DB/OL].[2024-10-25].https://www.usgs.gov/centers/national-minerals-information-center/iron-and-steel-slag-statistics-and-information.
[8] Nippon Slag Association.2022 Production and Uses of Steel Slag in Japan[DB/OL].[2024-10-25].https://www.slg.jp/pdf/Amounts%20of%20Steel%20Slag% 202021FY.pdf
[9] 刘勇,程树森,刘童. 上升气泡对钢渣界面行为的影响[J].钢铁,2024,59(2):75.(LIU Y,CHEN S S,LIU T. Influence of a rising bubble on behavior of steel-slag interface[J].Iron and Steel,2024,59(2):75.)
[10] 孙陶安,操瑞宏,夏云进,等. 近似核壳型微球对钢渣的熔融还原行为分析[J].钢铁,2023,58(1):91.(SUN T A,CAO R H,XIA Y J,et al. Melting and reduction behavior of core-shell microsphere in steel slag[J].Iron and Steel,2023,58(1):91.)
[11] 吕岩,杨利彬,林路,等. 含铬特殊钢渣中总铬及六价铬浸出特性及影响[J].钢铁,2019,54(6):103.(LÜ Y,YANG L B,LIN L,et al. Leaching characteristics and affecting factors of total chromium and chromium Ⅵ in chromium-containing special steel slag[J].Iron and Steel,2019,54(6):103.)
[12] 赵树海,金永丽,郭嘉诚,等. 低钙钢渣中钙、铁分离及回收利用[J].中国冶金,2023,33(10):125.(ZHAO S H,JIN Y L,GUO J C,et al. Separation and recovery of calcium and iron from low calcium steel slag[J].China Metallurgy,2023,33(10):125.)
[13] MASINDI V,RAMAKOKOVHU M M,OSMAN M S,et al.Advanced application of BOF and SAF slags for the treatment of acid mine drainage (AMD):a comparative study[J].Materials Today:Proceedings,2021,38(2):934.
[14] REIJONEN I,HARTIKAINEN H.Risk assessment of the utilization of basic oxygen furnace slag (BOFS) as soil liming material:oxidation risk and the chemical bioavailability of Chromium species[J].Environmental Technology and Innovation,2018,11:358.
[15] DAS B,PRAKASH S,REDDY P S R,et al. An overview of utilization of slag and sludge from steel industries[J].Resources,Conservation and Recycling,2007,50(1):40.
[16] 郭辉. 转炉钢渣中铁的还原回收及制备高胶凝性水淬渣的方法研究[D].广州:华南理工大学,2018.(GUO H.Iron recovery and preparation of water-quenched slag with high cementitious performance from BOF slag by means of reduction[D].Guangzhou:South China University of Technology,2018.
[17] WANG Q,YAN P Y.Hydration properties of basic oxygen furnace steel slag[J].Construction and Building Materials,2010,24(7):1134.)
[18] FISHER L V,BARRON A R.The recycling and reuse of steelmaking slags:a review[J].Resources,Conservation and Recycling,2019,146:244.
[19] 俞海明,王强. 钢渣处理与综合利用[M].北京:冶金工业出版社,2015.(YU H M,WANG Q.Steel slag:treatment and resource utilization[M].Beijing:Metallurgical Industry Press,2015.)
[20] 杨华明,霍成立,赵武,等. 钢铁厂“三废”综合治理的研究进展[J].鞍钢技术,2011(1):1.(YANG H M,HUO C L,ZHAO W,et al. Research progress on the comprehensive utilization of industrial waste in iron and steel plant[J].Angang Technology,2011(1):1.)
[21] 黄志芳,周永强,杨钊. 谈谈钢渣综合利用的有效途径[J].有色金属设计,2005,32(2):50.(HUANG Z F,ZHOU Y Q,YANG Z. Discussion about an effective way for comprehensively utilizing steel slag[J].Nonferrous Metals Design,2005,32(2):50.)
[22] 彭犇. 热态钢渣改性及改性渣物理化学性质研究[D].北京:北京科技大学,2015.(PENG B.Modification and its physicochemical property of molten steel slag[D].Beijing:University of Science and Technology Beijing,2015.)
[23] CHEN H S,XIE J,WU S P,et al.Evolution of selective absorption for bitumen from basic oxygen furnace slag (BOF) during aging and rejuvenation in bituminous mixtures[J].Construction and Building Materials,2022,351:128894.
[24] 蒋亮. 钢渣氧化重构及重构钢渣的组成、结构与性能[D].北京:中国建筑材料料学研究总院,2018.(JIANG L.Oxidation modification of steelmaking slag and the composition,structure and property of modified slag[D].Beijing:China General Research Institute of Building Materials,2018.)
[25] 唐明述,袁美栖,韩苏芬,等. 钢渣中MgO、FeO、MnO的结晶状态与钢渣的体积安定性[J].硅酸盐学报,1979(1):35.(TANG M S,YUAN M Q,HAN S F,et al. Crystallization states of MgO,FeO,and MnO in steel slag and volume stability of steel slag[J].Journal of Silicate,1979(1):35.)
[26] HAO S,LUO G P,CHEN Y S,et al.Effect of high temperature tempering on the phase composition and structure of steelmaking slag[J].High Temperature Materials and Processes,2023,42(1):105.
[27] XUE P,HE D F,XU A J,et al.Modification of industrial BOF slag:formation of MgFe₂O₄ and recycling of iron[J].Journal of Alloys and Compounds,2017,712:640.
[28] LEE J C,KURNIAWAN,KIM E Y,et al. A review on the metallurgical recycling of vanadium from slags:towards a sustainable vanadium production[J].Journal Materials Research and Technology,2021,12:343.
[29] SHI C H,WANG X C,ZHOU S,et al.Mechanism,application,influencing factors and environmental benefit assessment of steel slag in removing pollutants from water:a review[J].Journal of Water Process Engineering,2022,47:102666.
[30] 孔令种,王珏,陈来柱. 钢渣成分变化对其矿物相及易磨性影响的研究[J].中国冶金,2013,23(4):56.(KONG L Z,WANG J,CHEN L Z. Research on mineral phase and grindability of steel slag by changing components contents[J].China Metallurgy,2013,23(4):56.)
[31] 于世朴. 处理工艺的研究[J].环境污染与防治,1985(2):5.(YU S P. A test of the plate-splashing and quenching process of converter slag[J].Environmental Pollution and Prevention,1985(2):5.)
[32] MORONE M,COSTA G,GEORGAKOPOULOS E,et al.Granulation-carbonation treatment of alkali activated steel slag for secondary aggregates production[J].Waste and Biomass Valorization,2017,8(5):1381.
[33] 沈成孝,李永谦,王建刚,等. 宝钢新型钢渣处理技术[J].中国冶金,2004,14(5):32.(SHEN C X,LI Y Q,WANG J G,et al. New technology of slag processing at Baosteel[J].China Metallurgy,2004,14(5):32.)
[34] 张国伟,张延平,吴桐,等. 钢渣热闷余热回收有机朗肯循环发电技术分析[J].冶金能源,2021,40(2):9.(ZHANG G W,ZHANG Y P,WU T,et al. Technology analysis for steel slag waste heat recovery and organic rankine cycle power generation[J].Energy for Metallurgical Industry,2021,40(2):9.)
[35] ZONG Y B,CANG D Q,ZHEN Y P,et al.Component modification of steel slag in air quenching process to improve grindability[J].Transactions of Nonferrous Metals Society of China,2009,19:s834.
[36] 赵青林,周明凯,魏茂. 德国冶金渣及其综合利用情况[J].硅酸盐通报,2006,25(6):165.(ZHAO Q L,ZHOU M K,WEI M. Iron and steel slags in German and its comprehensive use[J].Bulletin of the Chinese Ceramic Society,2006,25(6):165.)
[37] LIU C W,HUANG S G,BLANPAIN B,et al.Optimization of mineralogy and microstructure of solidified basic oxygen furnace slag through SiO₂ addition or atmosphere control during hot-stage slag treatment[J].Metallurgical and Materials Transactions B,2019,50(1):210.
[38] LIU C W,HUANG S G,BLANPAIN B,et al.Effect of Al₂O₃ addition on mineralogical modification and crystallization kinetics of a high basicity BOF steel slag[J].Metallurgical and Materials Transactions B,2019,50(1):271.
[39] 邓志豪. 转炉钢渣相演变和自粉化规律研究[D].北京:北京科技大学,2014.(DENG Z H.Study on the phase evolution and self-pulverization law of converter steel slag[D].Beijing:University of Science and Technology Beijing,2014.)
[40] 甄常亮,程翠花,张巧荣,等. “两步法”重构钢渣物相变化特征及黏度调控机制[J].钢铁,2023,58(7):144.(ZHEN C L,CHENG C H,ZHANG Q R,et al. Phase change characteristics and viscosity regulation mechanism during two-stepsteel slag reconstruction process[J].Iron and Steel,2023,58(7):144.)
[41] 何赛,林路,刘亚琴,等. 熔融改质含磷钢渣碳热还原回收有价元素试验[J].钢铁,2022,57(6):167.(HE S,LIN L,LIU Y Q,et al. Recovery of valuable elements from molten modified phosphorous steel slag by carbothermic reduction[J].Iron and Steel,2022,57(6):167.)
[42] HE Z W,HU X J,CHOU K C.Synergetic modification of industrial basic oxygen furnace slag and copper slag for efficient iron recovery[J].Process Safety and Environmental Protection,2022,165:487.
[43] LIN Y,YAN B J,SHU Q F,et al.Synergetic valorization of basic oxygen furnace slag and stone coal:metal recovery and preparation of glass-ceramics[J].Waste Management,2021,135:158.
[44] GUO H,YIN S H,YU Q J,et al.Iron recovery and active residue production from basic oxygen furnace (BOF) slag for supplementary cementitious materials[J].Resources,Conservation and Recycling,2018,129:209.
[45] LI P,GUO H W,GAO J M,et al.Novel concept of steam modification towards energy and iron recovery from steel slag:oxidation mechanism and process evaluation[J].Journal of Cleaner Production,2020,254:119952.
[46] HE Z W, HU X J, CHOU K C.Oxidative modification of industrial basic oxygen furnace slag for recover iron-containing phase: study on phase transformation and mineral structure evolution[J].Process Safety and Environmental Protection, 2023, 171: 167.
[47] FERNÁNDEZ G D,PRAZUCH J,RUIZ B I,et al. The treatment of basic oxygen furnace (BOF) slag with concentrated solar energy[J].Solar Energy,2019,180:372.
[48] 周朝刚,杨会泽,艾立群,等. 转炉含磷钢渣循环利用技术的研究现状及展望[J].钢铁,2021,56(2):22.(ZHOU C G,YANG H Z,AI L Q,et al. Research status and prospect of recycling technology of converter slag containing phosphorus[J].Iron and Steel,2021,56(2):22.)
[49] 杜传明,于耀辉,袁磊,等. 钢渣中磷分离及回收的研究现状和发展趋势[J].钢铁,2020,55(12):1.(DU C M,YU Y H,YUAN L,et al. Research status and development trend of phosphorus separation and recovery from steelmaking slag[J].Iron and Steel,2020,55(12):1.)
[50] YU Y H,DU C M,FAN S L,et al.Acid-leaching separation of phosphorus from the BOF slag modified with Al₂O₃[J].Journal of Environmental Chemical Engineering,2022,10(5):108394.
[51] YU J C,MA B Z,ZHAO S H,et al.Vanadium extraction from water-cooled vanadium converter slag via salt-free roasting and acid leaching[J].Process Safety and Environmental Protection,2023,172:727.
[52] 李伟峰,王京刚,侯贵华,等. 水杨酸溶液萃取转炉钢渣中硅酸盐相的研究[J].硅酸盐通报,2008,27(2):365.(LI W F,WANG J G,HOU G H,et al. Study of silicate phase extraction from converter slag by salicylic acid methanol(SAM)solution[J].Bulletin of the Chinese Ceramic Society,2008,27(2):365.)
[53] 李召峰,周宗辉,单立福. 氢氧化钾-蔗糖溶液(KOSH)萃取钢渣中间相的研究[C]//中国硅酸盐学会水泥分会首届学术年会论文集. 焦作:济南大学材料科学与工程学院,2009:5.(LI Z F,ZHOU Z H,SHAN L F. Study of mesophase extraction from steel slag by potassium sucrose (KOSH) solution[C]//Proceedings of the First Annual Conference of Cement Branch of China Silicate Society. Jiaozuo:College of Materials Science and Engineering,Jinan University,2009:5.)
[54] 叶国华,唐悦,左琪,等. 叔胺TOA从含钒钢渣直接酸浸液中萃钒除铁的研究[J].矿产保护与利用,2021,41(3):17.(YE G H,TANG Y,ZUO Q,et al. Extracting vanadium over iron from direct acid leaching solution of V-bear-ing steel slag by solvent extraction with tertiary amine TOA[J].Conservation and Utilization of Mineral Resources,2021,41(3):17.)
[55] 崔心宇,那贤昭. 钢渣资源化技术及展望[J].中国冶金,2024,34(10):16.(CUI X Y,NA X Z. Technologies and prospects for resource utilization of steel slag[J].China Metallurgy,2024,34(10):16.)
[56] 龙红明,武皓天,于先坤,等. 钢渣用于土壤修复与改良的研究进展[J].中国冶金,2023,33(2):1.(LONG H M,WU H T,YU X K,et al. Research status of steel slag used for soil remediation and improvement[J].China Metallurgy,2023,33(2):1.)
[57] WANG J F,LIU W,LIU T Z.Biofilm based attached cultivation technology for microalgal biorefineries:a review[J].Bioresource Technology,2017,244(2):1245.
[58] KABAY N,MIYAN N,ÖZKAN H.Basic oxygen furnace and ground granulated blast furnace slag based alkali-activated pastes:characterization and optimization[J].Journal of Cleaner Production,2021,327:129483.
[59] CHEN C Y,ZHUANG K W,CHANG Y H,et al.Basic oxygen furnace slag as a support material for the cultivation of indigenous marine microalgae[J].Bioresource Technology,2021,342:125968.
[60] TANG S R,WILKE B M,HUANG C Y.The uptake of Copper by plants dominantly growing on copper mining spoils along the Yangtze River,the People's Republic of China[J].Plant and Soil,1999,209:225.
[61] LI Z Y,MA Z W,VAN DER KUIJP T J,et al. A review of soil heavy metal pollution from mines in China:pollution and health risk assessment[J].Science of the Total Environment,2014,468/469:843.
[62] BOLAN N,KUNHIKRISHNAN A,THANGARAJAN R,et al.Remediation of heavy metal (loid)s contaminated soils:to mobilize or to immobilize[J].Journal of Hazardous Materials,2014,266:141.
[63] YUAN X Z,XIONG T,YAO S,et al.A real filed phytoremediation of multi-metals contaminated soils by selected hybrid sweet sorghum with high biomass and high accumulation ability[J].Chemosphere,2019,237:124536.
[64] WEN T T,YANG L Y,DANG C Y,et al.Effect of basic oxygen furnace slag on succession of the bacterial community and immobilization of various metal ions in acidic contaminated mine soil[J].Journal of Hazardous Materials,2020,388:121784.
[65] 秦松,李俊国,王亚军,等. AOD不锈钢渣中Ca高效浸出及其间接碳酸化[J].钢铁,2024,59(8):200.(QIN S,LI J G,WANG Y J,et al. Efficient leaching and indirect carbonation of Ca from AOD stainless steel slag[J].Iron and Steel,2024,59(8):200.)
[66] 王治飞,白连强,王为振,等. 钢渣及废催化剂协同制备陶粒的工艺优化[J].冶金能源,2024,43(3):33.(WANG Z Q,BAI L Q,WANG W Z,et al. Study on process optimization of preparation of ceramic particles by using steel slag and waste catalyst[J].Energy for Metallurgical Industry,2024,43(3):33.)
[67] MUSTAFA J,MOURAD A A H I,AL-MARZOUQI A H,et al. Simultaneous treatment of reject brine and capture of carbon dioxide:a comprehensive review[J].Desalination,2020,483:114386.
[68] AZDARPOUR A,ASADULLAH M,MOHAMMADIAN E,et al.A review on carbon dioxide mineral carbonation through pH-swing process[J].Chemical Engineering Journal,2015,279:615.
[69] CHEN Z H,CANG Z Z,YANG F M,et al.Carbonation of steelmaking slag presents an opportunity for carbon neutral:a review[J].Journal of CO₂ Utilization,2021,54:101738.
[70] WEI C,DONG J P,ZHANG H N,et al.Kinetics model adaptability analysis of CO₂ sequestration process utilizing steelmaking slag and cold-rolling wastewater[J].Journal of Hazardous Materials,2021,404(A):124094.
[71] TEIR S,ELONEVA S,FOGELHOLM C J,et al.Dissolution of steelmaking slags in acetic acid for precipitated calcium carbonate production[J].Energy,2007,32(4):528.
[72] ZHANG Y Y,YU L H,CUI K K,et al.Carbon capture and storage technology by steel-making slags:recent progress and future challenges[J].Chemical Engineering Journal,2023,455:140552.
[73] JIANG T,ZHANG J X,ZENG T,et al.Study on the carbonation properties of BOFS with γ-C₂S blending[J].Construction and Building Materials,2024,423:135752.
[74] FERRARA G,BELLI A,KEULEN A,et al.Testing procedures for CO₂ uptake assessment of accelerated carbonation products:experimental application on basic oxygen furnace steel slag samples[J].Construction and Building Materials,2023,406:133384.
[75] HUANG X L,ZHANG J F,ZHANG L.Accelerated carbonation of steel slag:a review of methods,mechanisms and influencing factors[J].Construction and Building Materials,2024,411:134603.
[76] TEIR S,REVITZER H,ELONEVA S,et al.Dissolution of natural serpentinite in mineral and organic acids[J].International Journal of Mineral Processing,2007,83(1/2):36.
[77] ZHAO Q,LIU C J,JIANG M F,et al.Preparation of magnesium hydroxide from serpentinite by sulfuric acid leaching for CO₂ mineral carbonation[J].Minerals Engineering,2015,79:116.
[78] PARK A H A,FAN L S. CO₂ mineral sequestration:physically activated dissolution of Serpentine and pH swing process[J].Chemical Engineering Science,2004,59(22/23):5241.
[79] KODAMA S,NISHIMOTO T,YAMAMOTO N,et al.Development of a new pH-swing CO₂ mineralization process with a recyclable reaction solution[J].Energy,2008,33(5):776.
[80] LEE S,KIM J W,CHAE S,et al.CO₂ sequestration technology through mineral carbonation:an extraction and carbonation of blast slag[J].Journal of CO₂ Utilization,2016,16:336.