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To: Bearcatbob who wrote (187617)1/2/2015 3:27:35 PM
From: Elroy Jetson  Respond to of 206089
 
Removing particulates and sulfur from the flue gas of coal fired plants is fairly expensive process, yielding huge amounts of waste contaminated with a variety of heavy metals.

Sulfur is removed from natural gas prior to burning, usually with a catalytic bed, while refineries roast the sulfur out of oil prior to refining to protect cracking catalysts.

China has committed itself to also reduce CO2 emissions, and a plant which burns natural gas produces half the CO2 that a coal plant does. Processing CO2 emissions as NRG will do in their Texas coal fired plant, by extracting the CO2 and selling selling it in pipelines for enhanced oil extraction.

Increasingly coal can make sense only if the cost of coal is significantly less than the cost of natural gas.

The new natural gas pipelines Russia is building to China will greatly supplement China's own rapidly expanding production of natural gas from shale and coal formations.