关键词: 气流床, 灰熔融性, 熔渣, 黏度, 腐蚀, 灰沉积

Abstract: The relationship of coal properties and entrained-flow gasifiers were described in this paper. Technical features were introduced for coal-water slurry feed gasifiers and dry pulverized coal feed gasifiers. The effects of coal rank，slurryability，heating value，proximate analysis，ultimate analysis，ash fusibility，slag flowability，molten slag corrosion，and ash deposition were discussed for the entrained-flow gasifier selection，design，operating conditions，and gasification performance. The gasifier flexibilities on coal properties were analyzed and typical suitable coal property ranges of the two gasifiers were given. The industrial solutions on various coal property requirements were summarized and the related research & development progress were reviewed. Recommendations were given for the coal properties and gasification technology selection，application，and further research & development directions.

Key words: entrained-flow gasifier, ash fusibility, slag, viscosity, corrosion, ash deposition