Fischer and Tropsch further developed this technology. In Germany as well as in other parts of the world, scientists intensively worked on the procedure of coal liquefaction known under the term of FT to improve this technology as it was still relatively expensive compared to the production of fuels from crude oil.
Today, these processes are still in operation in South Africa and China. However, in Europe, plants were shut down decades ago due to the high environmental burden and the economic inefficiency. China have also cut further investments into this technology, in view of the high costs, the extreme consumption of water and the unbearable environmental burden.