现代地质Issue(6)：1477-1483,7.
CO2矿化封存条件下玄武岩溶解反应速率模型
Model of Basalt Dissolution Rate Under CO2 Mineral Sequestration Conditions
摘要
Abstract
Implementation of CO2 capture and sequestration has currently been proposed as an effective way to reduce CO2 emissions and alleviate greenhouse effect.CO2 mineral sequestration is the most secure and stable way among all the geological storage types and basalt has been identified as a potential host formation.Moreo-ver,the process of rock dissolution is the basis of mineral precipitation and CO2 mineral sequestration.There-fore,it is necessary to study the dissolution rate of basalt.Previous researches concentrate on rate models for individual primary minerals in basalts under buffer solution.In this paper,we propose a dissolution rate model of basalt in supercritical CO2 solution under different temperatures.The basalt samples used in the experiments were taken from Linqu County,Shandong Province.The laboratory experiments were conducted under a range of temperatures (45 -100 ℃)and 10 MPa.The related parameters in the model were calculated through least square method.Model verification were conducted using the model predicted value and experimental value under 57 ℃,72 ℃,92 ℃,respectively.Results show that the model is accurate and reliable,which can be directly applied for calculating basalt dissolution rate under CO2 geological sequestration conditions.关键词
CO2矿化封存/溶解速率模型/玄武岩/超临界 CO2/山东省临朐县Key words
CO2 mineral sequestration/dissolution rate model/basalt/supercritical CO2/Linqu County, Shandong Province分类
天文与地球科学引用本文复制引用
李晓媛,常春,于青春..CO2矿化封存条件下玄武岩溶解反应速率模型[J].现代地质,2013,(6):1477-1483,7.基金项目
国土资源部公益性行业科研专项（201211063-04）；中央高校基本科研业务费专项（2011YYL147）；中国地质调查局项目（12120113040000-3）。 （）
