Process for liquefying carbonaceous materials of high molecular weight and for separating liquefaction products

In a process for hydrogenating and liquefying coal, wherein coal is subjected in a coal liquefaction medium to the chemical action of hydrogen under elevated temperature and pressure, in which process gasiform products are separated from hydrogenated slurryform products comprising liquid and solid products including materials with structures composed of acidic phenolic components and basic amino-components, the improvement for increasing coal conversion rates, being characterized by agitating the slurryform products in the presence of an alkaline hydroxide in the presence of water, for binding acidic phenolic components in said products to form phenolic salts and lower the viscosity of the slurryform, separating the slurryform which was agitated into a solid residue rich portion, a liquid product portion rich in phenolic compounds, and a liquid portion comprising amines, and recycling and admixing at least a part of the liquid portion comprising amines to said liquefaction medium.

In a process for hydrogenating and liquefying coal, wherein coal is subjected in a coal liquefaction medium to the chemical action of hydrogen under elevated temperature and pressure, in which process gasiform products are separated from hydrogenated slurryform products comprising liquid and solid products including materials with structures composed of acidic phenolic components and basic amino-components, the improvement for increasing coal conversion rates being characterized by agitating the slurryform products in the presence of an inorganic acid in the presence of water, for binding basic components in the slurryform and lower the viscosity thereof, while forming salts and adducts of amines with said inorganic acid, separating the slurryform which was agitated into a solid residue portion, a liquid product portion rich in said salts and adducts, and a liquid portion comprising phenols, and recycling and admixing a part of the liquid portion comprising phenols to said coal liquefaction medium.

In a process for hydrogenating and liquefying coal, wherein coal is subjected in a coal liquefaction medium to the chemical action of hydrogen under elevated temperature and pressure, in which process gasiform products are separated from hydrogenated slurryform products comprising liquid and solid products including materials with structure composed of acidic phenolic components and basic amino-components, the improvement for increasing coal conversion rates, being characterized by agitating the slurryform products in the persence of an inorganic acid in presence of water, for binding basic components in the slurryform and lower the viscosity thereof, while forming salts and adducts of amines with said inorganic acid, separating the slurryform which was agitated into a solid residue rich portion, a liquid product portion rich in said salts and adducts, and a liquid portion comprising phenols, subjecting the separated liquid product portion rich in said salts and adducts of amines to chemical treatment with an alkaline hydroxide for converting these salts and adducts into free amines, and recycling and admixing at least a part of these amines to said coal liquefaction medium.