Analysis on composition,property and application scenario of oil residue extract of coal direct liquefaction
The oil residue of coal direct liquefaction was extracted by the solvent extraction process,and then separated by centrifugation,atmospheric and vacuum distillation.After separating asphaltene,different grades of asphalt products and extract residue could be obtained.The utilization of the extract residue on a large scale could greatly improve the economic benefits of the enterprise.The group composition and property of the extract residue were analyzed,and the feasibility of its application in coal gasification,blending in circulating fluidized bed boilers,and carbon-ash separation was discussed.It was believed that the extract residue was more suitable for application in dry pulverized coal gasification by blending with raw coal.
coal direct liquefactionoil residue extractcompositionpropertyapplication
NETL
NSTL
万方数据
维普
