Production of On-Specification Fuels in Coal-to-Liquid (CTL) Fischer−Tropsch Plants Based on Fixed-Bed Dry Bottom Coal Gasification

Abstract

The fixed-bed dry bottom (FBDB) gasification technology is ideal for countries with no oil and gas resources but instead have low-rank coals. This technology cannot only provide a secure energy source using high-ash coals but can also in combination with Fischer−Tropsch synthesis be among those technologies able to convert carbonaceous solids to transportation fuels. The integration of refining tar products from FBDB coal gasification with products from the low-temperature Fischer−Tropsch (LTFT) process provides unique opportunities to produce final on-specification fuels.