The pollutant byproducts of the processes are a problem that needs to be addressed. The technologies will appear when those processes become economically advantageous.
The technologies are there. I was part of a project in Russia, where they planned to build the unit. They used foreign technologies. You are obviously familiar with this technology. Is it more dirty than coal burning power plants?
It’s not just selling coal and NG—it’s control of new power plant technology also. There is an electrical energy generation system developed in the U.S. which is now testing in pilot plant form. Captures all pollutants from fuels by their conversion into chemical feed-stocks. Near 60% efficiency for NG, 49% for gasified lignite coal, all while capturing the CO2 at pipeline pressure. Cost for construction priced at about $1000 per megawatt capacity.
http://www.gasification-syngas.org/uploads/eventLibrary/2014_11.2_8_Rivers_Xijia_Lu.pdf