EFFECT OF REACTION TEMPERATURE ON COAL-OIL CO-PROCESSING UNDER MILD CONDITION IN HYDROGEN

Abstract

Abstract: The effects of reaction temperature on coal-oil co-processing were studied using FCC slurry and three kinds of coals from different resources in autoclave under mild hydrogen pressure. The results showed that the liquefaction rate first increased and then decreased, the yield of gasoline (<200℃) decreased，diesel（200-350℃）increased, >350℃ residue yield first increased and then decreased while the ash content gradually increased with the increase of temperature. The changing trends of volatile matter and fixed carbon in the semicoke were dependent on coal from different sources, but mainly related to the reaction severity, raw material properties, formation rates and transformation rates of different components during the complex parallel-sequential reactions.

Key words: reaction temperature, coal-oil co-processing, liquefaction rate, semicoke

References

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