Reactive transport of chemicals in compacted bentonite under nonisothermal water infiltration

This paper presents an investigation of coupled thermal, hydraulic, and chemical behavior of a compacted bentonite buffer under the heating and hydration conditions of geological disposal of high-level nuclear waste. The study presented provides further insight into the evolution of hydro-geochemistry of the compacted bentonite and the clay...

Carbon dioxide flow and interactions in a high rank coal: Permeability evolution and reversibility of reactive processes

Uncertainties exist on the efficiency of CO₂ injection and storage in deep unminable coal seems due to potential reduction in the permeability of coal that is induced by CO₂ adsorption into the coal matrix. In addition, there is a limited knowledge about the stability of CO₂ stored in coal due to changes in...

Efficiency of Carbon Dioxide Storage and Enhanced Methane Recovery in a High Rank Coal

The high affinity and adsorption capacity of coal to carbon dioxide provides an alternative approach for the enhanced recovery of methane from unminable coalfields (CO₂-ECBM) by which a potential solution for long-term CO₂ sequestration in deep geological formations can also be achieved. However, due to chemomechanical...