Coke oven gas is a by-product of the production of coke. We are taking intensive actions to implement a technology for separation of hydrogen from coke-oven gas, which is a by-product of the coking process. Hydrogen may be used in fuel cells for environmentally-friendly and emission-free generation of electricity, environmentally-friendly public transport, powering electrical devices and emergency power supply stations (hospitals, schools, government buildings). The implementation and development of zero-emission urban transport based on hydrogen fuel cells will improve air quality significantly and offer a number of other benefits, such as reduced noise and pollution and lower CO2 emissions. Separation of hydrogen from the coke oven gas will become an important step towards cleaner air and therefore coking coal could be considered to be a clean energy source.