Coal Gasoline and Pollution

As I previously worked (many years ago) in coal and coal utilization research, I am well acquainted with most of the reasons why the oil companies and environmental types wish to discard use of coal as a major source for energy (in a green economy). However, I also recognize the profit motives that can drive their rhetoric.

As SASOL, Ltd is/was a major producer of coal-based synthetic gasoline and lubricants, I would be interested in hearing from anyone in the forum that has actual hands-on experience knowledge about cost effectiveness and pollution control issues with the Lurgi Gasifier and Fischer-Tropsch process. Has anyone worked with the SASOL process? I think we get a lot of opinions but not much experiential knowledge on this subject on CR4.