首页>
外国专利>
Liquefaction process wherein solvents derived from the material liquefied and containing increased concentrations of donor species are employed
Liquefaction process wherein solvents derived from the material liquefied and containing increased concentrations of donor species are employed
展开▼
机译:液化过程,其中使用衍生自液化材料并包含浓度增加的供体物质的溶剂
展开▼
页面导航
摘要
著录项
相似文献
摘要
An improved process for the liquefaction of solid carbonaceous materials wherein a solvent or diluent derived from the solid carbonaceous material being liquefied is used to form a slurry of the solid carbonaceous material and wherein the solvent or diluent comprises from about 65 to about 85 wt. % hydroaromatic components. The solvent is prepared by first separating a solvent or diluent distillate fraction from the liquefaction product, subjecting this distillate fraction to hydrogenation and then extracting the naphthenic components from the hydrogenated product. The extracted naphthenic components are then dehydrogenated and hydrotreated to produce additional hydroaromatic components. These components are combined with the solvent or diluent distillate fraction. The solvent may also contain hydroaromatic constituents prepared by extracting naphthenic components from a heavy naphtha, dehydrogenating the same and then hydrotreating the dehydrogenated product. When the amount of solvent produced in this manner exceeds that required for steady state operation of the liquefaction process a portion of the solvent or diluent distillated fraction will be withdrawn as product.
展开▼