Enhanced Hydromagnesite Process for CO2 Sequestration by Desilication of Serpentine Ore in NaOH Solution

doi:10.1021/acs.iecr.0c01600

	Enhanced Hydromagnesite Process for CO2 Sequestration by Desilication of Serpentine Ore in NaOH Solution
	Zhang, Xiaojuan 2,3; Zeng, Yan 1; Li, Zhibao 3
刊名	INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
	2020-06-24
卷号	59 期号:25 页码:11370-11380
ISSN号	0888-5885
DOI	10.1021/acs.iecr.0c01600
英文摘要	A new CO2 fixation process was highly enhanced by desilication of serpentine ore with concentrated NaOH solution and NH3 recycling. In the process, desilicated serpentine containing up to 83 wt % MgO after leaching is treated by NH4Cl solution, from which MgCl2 solution and NH3 gas are generated and are used to capture CO2. Hydromagnesite is produced from the reaction between ammonium carbonate and MgCl(2)( )solution at ambient temperature. The Phase-transition diagram of magnesium carbonate was constructed with the OLI-based chemical model. The leaching behavior of serpentine in concentrated NaOH was systematically studied. Parameters including the initial NaOH concentration, leaching temperature, solid-to-liquid ratio, and reaction time were investigated to achieve efficient separation of Si and Mg. The validity of the proposed process is successfully verified step by step and the target product of hydromagnesite is obtained. The synthetic hydromagnesite exhibit the same structure and similar morphology as natural hydromagnesite. Moreover, valuable 2% Ni-bearing minerals were also produced.
资助项目	National Science Foundation of China[21776279] ; National Science Foundation of China[21978290]
WOS关键词	CARBON-DIOXIDE ; MINERAL CARBONATION ; CAPTURE TECHNOLOGY ; MAGNESITE ; KINETICS ; PRECIPITATION ; TEMPERATURES ; DISPOSAL ; AMMONIA ; SYSTEM
WOS研究方向	Engineering
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000543786200002
资助机构	National Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/41171]
专题	中国科学院过程工程研究所
通讯作者	Zeng, Yan; Li, Zhibao
作者单位	1.McGill Univ, Mat Engn, Montreal, PQ H3A 0CS, Canada 2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Key Lab Green Proc & Engn, Inst Proc Engn, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Xiaojuan,Zeng, Yan,Li, Zhibao. Enhanced Hydromagnesite Process for CO2 Sequestration by Desilication of Serpentine Ore in NaOH Solution[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2020,59(25):11370-11380.
APA	Zhang, Xiaojuan,Zeng, Yan,&Li, Zhibao.(2020).Enhanced Hydromagnesite Process for CO2 Sequestration by Desilication of Serpentine Ore in NaOH Solution.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,59(25),11370-11380.
MLA	Zhang, Xiaojuan,et al."Enhanced Hydromagnesite Process for CO2 Sequestration by Desilication of Serpentine Ore in NaOH Solution".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 59.25(2020):11370-11380.