High Quality Transportation Fuels from Direct Coal Liquefaction

摘要

Compared to conventional crude oils used today to produce high quality transportation fuels, raw coal liquids derived from Direct Coal Liquefaction are more aromatic, with higher nitrogen and oxygen contents, but very low sulfur content. Based on these characteristics of liquids from direct coal liquefaction, there are some key challenges for secondary processing (using conventional refining technologies) to meet all of the specifications required for the today's clean fuel specifications. Extensive experimental and development work has been done Axens to characterize the raw coal liquids and to define secondary processing of raw coal liquids required to produce high quality transportation fuels. This presentation will describe the secondary processing of liquids from direct coal liquefaction and show that liquid fuels from direct coal liquefaction can be upgraded to meet the most stringent current specifications for clean liquid transportation fuels.