![]() ![]() Globally about 2000 GWe of coal-fired generation capacity is operating and another 500 GWe is expected online by 2030. Coal is the world's most abundant and widely distributed fossil fuel source. Some 26% of primary energy needs are met by coal and 37% of electricity is generated from coal, compared with 23% for natural gas. The term 'clean coal' is increasingly being used for supercritical coal-fired plants without CCS, on the basis that CO 2 emissions are less than for older plants, but are still much greater than for nuclear or renewables.World R&D on CCS exceeded $1 billion per year over 2009 to 2013, then fell sharply.There is typically at least a 20% energy penalty involved in 'clean coal' processes.The greatest challenge is bringing the cost of this down sufficiently for 'clean coal' to compete with nuclear power on the basis of near-zero emissions for base-load power.Attempting to use coal without adding to atmospheric carbon dioxide levels is a major technological challenge.Burning coal produces about 15 billion tonnes of carbon dioxide each year.Coal is used extensively as a fuel in most parts of the world.'Clean Coal' Technologies, Carbon Capture & Sequestration
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |