Good Practice: Coal bed methane utilisation, Slovakia

Download the Good Practice Case Study (89 Kb PDF)

Summary: Coal mining results in release of significant amounts of methane gas to the atmosphere. The gas sequestered near to coal deposits seeps into mine shafts and must be removed to ensure the safety of the mineworkers. Coal Bed Methane (CBM) in the Slovak mines is usually vented to the atmosphere.

The described project uses specialized technology to capture the gas and to utilize it by electricity and heat production. The project aims are:

• construction of degassing system
• electricity production for own pconsumption (40% of the captured CH₄)
• heat production (50%)

During the project activity approximately 10% of the gas will not be captured due to efficiency of the equipment. The exact amounts will be monitored continuously.

Through the improvement of current drainage systems, the extracted gas will be used for power generation and waste heat recovery.

Summary of Results: Coal bed methane collected in amount 1.264.000 m&3sup;/year by degasing system shall be used to produce power and heat using gas engine based CHP technology. CHP Units with performance 2 x 160 kWel shall produce electricity, substitute to grid electricity approximately 2,560 MWh per year.

To find similar reports, click on a keyword below:
Coal Mining : Combined Heat and Power : Heat Generation, Recovery and Use : Power Generation and Use

Intech sro