CO2 sequestration by high pressure reaction with olivine in a rocking batch autoclave

被引：16
|
作者：
Turri, Laura [1 ]
Muhr, Herve [1 ]
Rijnsburger, Keesjan [2 ]
Knops, Pol [2 ,3 ]
Lapicque, Francois [1 ]
机构：
[1] Univ Lorraine, CNRS, Lab React & Genie Proc, ENSIC, 1 Rue Grandville, F-54000 Nancy, France
[2] Innovat Concepts BV, Lombardstr 12, NL-4201 BH Gorinchem, Netherlands
[3] Green Minerals, Urmonderlaan 22, NL-6167 RD Geleen, Netherlands
来源：
CHEMICAL ENGINEERING SCIENCE | 2017年 / 171卷
关键词：
CO2; sequestration; Olivine carbonation; Rocking batch autoclave; Mineral separation; Carbonate recovery; MINERAL CARBONATION; KINETICS;
D O I：
10.1016/j.ces.2017.05.009
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Industrial olivine has been carbonated at 175 degrees C, 100 bars in a mixture of supercritical CO2 and an aqueous solution, for 30 min to 12 h in a rocking batch autoclave. Simple settling of the solids recovered after the reaction led to a "fines" fraction and a coarser (residue) fraction. The carbonation extent of olivine was limited to 30% mainly because of the size of the olivine particles used, centered at 138 pm. Observation and characterization of the solids showed that the residue is principally formed by unreacted olivine, whereas the fines consist mainly of carbonates (below 40 gm) with more silica in the range 40106 gm: this segregation with particle size appears promising for separated beneficiation of the silica and the carbonates formed. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：27 / 31
页数：5
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