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基于二氧化碳封存的水镁石反应动力学研究

DOI: 10.3969/j.issn.1001-7410.2011.03.06, PP. 438-446

Keywords: 二氧化碳矿物封存,水镁石,动力学,Avrami模型

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Abstract:

缓慢的矿物溶解速率以及溶解介质难以回收一直是影响CO2矿物封存发展的两个难点。本文提出了一种新的以可循环的氯化铵溶液作为中间媒介的CO2矿物封存工艺。在此基础上,选取水镁石作为富镁硅酸盐矿物的代表,系统地研究了水镁石在氯化铵溶液中的流-固两相的反应动力学。结果表明该溶解反应符合Avrami经验模型。反应速率随反应温度、氯化铵溶液浓度的增加而增大,随固液比值、矿石粒径的增加而减小。该反应表观活化能为47.47kJ/mol,表明反应主要受表面化学反应控制。

References

[1]  8 Wu J C S, Sheen J D,Chen S Y et al.Feasibility of CO2 fixation via artificial rock weathering.Industrial & Engineering Chemistry Research,2001, 40 (18):3902~3905
[2]  9 Butt D P, Lackner K S,Wendt C H et al.Kinetics of thermal dehydroxylation and carbonation of magnesium hydroxide.Journal of the American Ceramic Society,1996, 79 (7):1892~1898
[3]  10 Bearat H, McKelvy M J,Chizmeshya A V G et al.Magnesium hydroxide dehydroxylation/carbonation reaction processes: Implications for carbon dioxide mineral sequestration.Journal of the American Ceramic Society,2002, 85 (4):742~748
[4]  11 Glaser V, Vídensk J,Kuela M.Kinetics of the reaction between magnesium oxide and ammonium chloride solution.Collection of Czechoslovak Chemical Communications,1988, 53 (8):1711~1717
[5]  12 欧腾蛟,卢旭晨,梁小峰等.煅烧菱镁矿在氯化铵乙二醇溶液中的浸取动力学.过程工程学报,2007, 7 (5):928~933
[6]  Ou Tengjiao,Lu Xuchen,Liang Xiaofeng et al.Leaching kinetics of calcined magnesite from glycol solution dissolved with ammonium chloride.The Chinese Journal of Process Engineering,2007, 7 (5):928~933
[7]  13 黄 芳,王 华,李军旗等.高镁磷尾矿中磷和镁在硫酸中的溶解动力学.过程工程学报,2009, 9 (6):1121~1126
[8]  1 Hendriks C. Carbon capture and storage.UNFCCC Secretariat Financial and Technical Support Programme,2007,Available at http://unfccc.int/files/cooperation_and_support/financial_mechanism/application/pdf/hendriks.pdf
[9]  2 Sipil J, Teir S,Zevenhoven R.Carbon dioxide sequestration by mineral carbonation: Literature review update 2005~2007.Report for Faculty of Technology Heat Engineering Laboratory,bo Akademi University: Turku,Finland,2008.10~11
[10]  3 Zhao L, Sang L Q,Chen J et al.Aqueous carbonation of natural brucite: Relevance to CO2 sequestration.Environmental Science & Technology,2010, 44 (1):406~411
[11]  4 OConnor W K, Dahlin D C,Nilsen D N et al.CO2 storage in solid form: A study of direct mineral carbonation.5th International Conference on Greenhouse Gas Technologies,Cairns,Australia,2000.1~7
[12]  5 Park A-H A, Fan L-S.CO2 mineral sequestration: Physically activated dissolution of serpentine and pH swing process.Chemical Engineering Science,2004, 59 (22~23):5241~5247
[13]  6 OConnor W K, Dahlin D C,Rush G E et al.Carbon dioxide sequestration by direct mineral carbonation: Process mineralogy of feed and products.Minerals & Metallurgical Processing,2002, 19 (2):95~101
[14]  7 OConnor W K, Dahlin D C,Rush G E et al.Energy and economic considerations for ex-situ and aqueous mineral carbonation.Proceedings of 29th International Technical Conference on Coal Utilization and Fuel Systems,Coal Technology Association,Clearwater,Florida,2004.1~12
[15]  Huang Fang,Wang Hua,Li Junqi et al.Dissolution kinetics of P and Mg in phosphate tailings with high magnesium content in sulfuric acid.The Chinese Journal of Process Engineering,2009, 9 (6):1121~1126

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