Kinetics and rate-limiting mechanisms of dolomite dissolution at various;CO2 partial pressures

doi:10.1007/BF02880680

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	Kinetics and rate-limiting mechanisms of dolomite dissolution at various;CO2 partial pressures
	Liu, ZH 3; Wolfgang, D
刊名	SCIENCE IN CHINA SERIES B-CHEMISTRY
	2001
卷号	44 期号:5 页码:500-509
关键词	dolomite dissolution rate diffusion boundary layer CO2 conversion CO2 partial pressure
ISSN号	1006-9291
DOI	10.1007/BF02880680
英文摘要	Techniques of rotating-disk and catalyst were used in investigating the kinetics of dolomite dissolution in flowing CO2-H2O system. Experiments run in the solutions equilibrated with various CO2 partial pressures (P-CO2) from 30 to 100000 Pa. It shows that dissolution rates of dolomite are related with rotating speeds at conditions far from equilibrium. This was explained by modified diffusion boundary layer (DBL) model. In addition, the dissolution rates increase after addition of carbonic anhydrase (CA) to solutions, where the CA catalyzes CO2 conversion. However, great differences occur among various CO2 partial pressures. The experimental observations give a conclusion that the modified DBL model enables one to predict dissolution rates and their behaviour at various P-CO2 with satisfactory precision at least far from equilibrium.
学科主题	沉积学与沉积岩
WOS关键词	PRECIPITATION KINETICS ; CALCITE ; SYSTEMS ; FLOW ; TEMPERATURE ; CO2-H2O ; ATM ; PH
WOS研究方向	Chemistry
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000171967200008
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/37431]
专题	中国地质调查局
作者单位	1.Chinese Acad Sci, Inst Karst Geol, MLR, Karst Dynam Lab, Guilin 541004, Peoples R China. 2.Univ Bremen, Inst Expt Phys FB1, D-28334 Bremen, Germany. 3.中国地质调查局岩溶地质研究所
推荐引用方式 GB/T 7714	Liu, ZH,Wolfgang, D. Kinetics and rate-limiting mechanisms of dolomite dissolution at various;CO2 partial pressures[J]. SCIENCE IN CHINA SERIES B-CHEMISTRY,2001,44(5):500-509.
APA	Liu, ZH,&Wolfgang, D.(2001).Kinetics and rate-limiting mechanisms of dolomite dissolution at various;CO2 partial pressures.SCIENCE IN CHINA SERIES B-CHEMISTRY,44(5),500-509.
MLA	Liu, ZH,et al."Kinetics and rate-limiting mechanisms of dolomite dissolution at various;CO2 partial pressures".SCIENCE IN CHINA SERIES B-CHEMISTRY 44.5(2001):500-509.