Adsorption Factors in Enhanced Coal Bed Methane Recovery: A Review

Numerical Simulation Study on Coal Bed Methane Development

In order to find out the advantages and disadvantages of various development methods of coal bed gas, the experimental block provided by the field is studied, the component calculation model is established by CMG numerical simulation software on the basis of fine geologic modeling. Four development schemes are designed which are depleted development, development of hydraulic fracturing, develop...

Sulfate Removal from Water Produced during Co2 Enhanced Oil Recovery, Coal-bed Methane Recovery, and Mining Operations Using Anion Exchange Resins by Cole M. Duckworth Thesis

Deformation of Coal Induced by Methane Adsorption at Geological Conditions

The quenched solid density functional theory (QSDFT) is employed to study methane adsorption on coal at geological conditions. Themain focus is made on coal deformation in the course of adsorption that may result in either expansion/swelling or contraction, depending upon the pressure, temperature, and pore size. Twoqualitatively different types of deformation behaviorwere found depending upon ...

Distribution of trace elements in coal and coal fly ash and their recovery with mineral processing practices: A review

Today coal is among the most important energy sources. In order to meet the world's energy demands, low-calorie lignite with a high ash content is generally used in the large capacity coal-fired thermal power plants. As a result of coal firing, wastes such as fly ash, slag, and flue gas are also produced. Subsequently, toxic trace elements within coal are transferred to wastes such as slag, fl...

Adsorption and strain: The CO2-induced swelling of coal

Enhanced coal bed methane recovery (ECBM) consists in injecting carbon dioxide in coal bed methane reservoirs in order to facilitate the recovery of the methane. The injected carbon dioxide gets adsorbed at the surface of the coal pores, which causes the coal to swell. This swelling in confined conditions leads to a closure of the coal reservoir cleat system, which hinders further injection. In...