Illite Dissolution Rates and Equation (100 to 280 deg C)

Abstract
The objective of this suite of experiments was to develop a useful kinetic dissolution expression for illite applicable over an expanded range of solution pH and temperature conditions representative of subsurface conditions in natural and/or engineered geothermal reservoirs. Using our new data, the resulting rate equation is dependent on both pH and temperature and utilizes two specific dissolution mechanisms (a "neutral" and a "basic" mechanism). The form of this rate equation should be easily incorporated into most existing reactive transport codes for to predict rock-water interactions in EGS shear zones.
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Additional Info

DOE Project Number: FY14 AOP 1.4.2.2
DOE Project Lead: Lauren Boyd
DOI: 10.15121/1159941
Last Updated: over a year ago
Oct
2014
Data from October, 2014
Submitted Oct 17, 2014

Lawrence Livermore National Laboratory

Contact

925.423.5694

Authors

Susan Carroll
Lawrence Livermore National Laboratory

Keywords

geothermal, illite, dissolution kinetics, illite dissolution, rate, equation, experiment

Status

Publicly accessible License 

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