DOI: 10.1016/j.jcou.2018.05.015
Scopus记录号: 2-s2.0-85047160191
论文题名: Study on mineral carbonation of heat activated lizardite at pilot and laboratory scale
作者: Benhelal E. ; Rashid M.I. ; Rayson M.S. ; Prigge J.-D. ; Molloy S. ; Brent G.F. ; Cote A. ; Stockenhuber M. ; Kennedy E.M.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2018
卷: 26 起始页码: 230
结束页码: 238
语种: 英语
英文关键词: CO2 storage
; Heat activation
; Lizardite
; Magnesite yield
; MCi research pilot plant
; Mineral carbonation
Scopus关键词: Batch reactors
; Carbonation
; Digital storage
; Dissolution
; Kaolinite
; Kilns
; Laboratories
; Lithium compounds
; Magnesite
; Particle size
; Pilot plants
; Silicates
; Sodium bicarbonate
; Sodium chloride
; Temperature
; Thermomechanical treatment
; Average particle size
; CO2 storage
; Heat activation
; Laboratory-scale reactor
; Lizardite
; Magnesium silicates
; Mineral carbonation
; Reaction conditions
; Extraction
英文摘要: This investigation examines the experimental data obtained from a 30L pilot batch reactor, used for single stage aqueous carbonation and for the dissolution of heat activated lizardite and compares this data to the laboratory scale data obtained under similar reaction conditions. Two mineral feeds, heat activated lizardite produced in large quantities in a gas fired industrial kiln ("P.H.A") and heat activated lizardite sample synthesised in a laboratory kiln ("L.H.A") were characterised and their reactivity was compared. Characterisation of the two heat activated samples showed that the P.H.A material contained relatively high concentrations of crystalline phases and a lower proportion of amorphous magnesium silicate, as well as a higher average particle size compared to L.H.A. These properties resulted in a reduction in magnesite yield and extent of magnesium extraction when P.H.A samples were used for carbonation and dissolution experiments, compared to the results obtained with L.H.A. as feed. The results of aqueous carbonation experiments in the pilot and the laboratory scale reactors using P.H.A exhibited less than 5% variation in repeat experiments. Results indicate that the magnesite yield obtained in the pilot batch reactor was 35±2% higher than that produced in the laboratory scale reactor. The higher yield was attributed to improved mixing in the pilot batch reactor compared to the laboratory scale reactor and consequent removal of the precipitated phases on the surface of heat activated particles in the pilot reactor. The yield of magnesite in mineral carbonation experiments using demineralised water and tap water was almost identical. Undertaking reaction in 1M NaCl solution did not have a significant effect, but adding 0.64M sodium bicarbonate had a notable effect on magnesite yield. Low pressure, low temperature dissolution experiments using L.H.A sample displayed similar rates of magnesium extraction in the pilot and the laboratory scale reactors. © 2018 Published by Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/111863
Appears in Collections: 气候减缓与适应
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作者单位: Department of Chemical Engineering, University of Newcastle, Callaghan, NSW 2308, Australia; Orica Australia Pty Ltd., Kurri Kurri, NSW 2327, Australia; University of Newcastle Research Associates Ltd., Shortland, NSW 2307, Australia
Recommended Citation:
Benhelal E.,Rashid M.I.,Rayson M.S.,et al. Study on mineral carbonation of heat activated lizardite at pilot and laboratory scale[J]. Journal of CO2 Utilization,2018-01-01,26