Hydrotreating of carbonaceous materials
AssigneeChemroll Enterprises, Inc.
InventorRollan Swanson
Life of this patent
Estimating the term…
Abstract
A process for hydrotreating carbonaceous materials is disclosed. The carbonaceous material is contacted with steam and with empirical hydrates of alkali metal hydrosulfides, monosulfides, or polysulfides. The process hydrocracks, hydrogenates, denitrogenates, demetallizes, and desulfurizes. In a preferred embodiment, hydrogen sulfide is co-fed to the reaction zone.
Claims30
A process for hydrogenating, hydrocracking, denitrogenating, and demetallizing carbonaceous material to produce principally normally liquid hydrocarbon products of increased hydrogen content as compared to the carbonaceous material, comprising contacting the carbonaceous material in a reaction vessel with steam and an empirical hydrate of a sulfur-containing compound selected from the group consisting of alkali metal hydrosulfides, alkali metal monosulfides, and alkali metal polysulfides and recovering the said hydrocarbon products, there being essentially no liquid water present during such contacting.
A process for hydrogenating, hydrocracking, denitrogenating, and demetallizing carbonaceous material to produce principally normally liquid hydrocarbon products of increased hydrogen content as compared to the carbonaceous material, comprising contacting the carbonaceous material in a reaction vessel with steam and an empirical hydrate of an alkali metal hydrosulfide and recovering the said hydrocarbon products, there being essentially no liquid water present during such contacting.
A process for hydrogenating, hydrocracking, denitrogenating, and demetallizing carbonaceous material to produce principally normally liquid hydrocarbon products of increased hydrogen content as compared to the carbonaceous material, said process comprising:
- (a) contacting the carbonaceous material in a reaction vessel with an empirical hydrate of a sulfur-containing compound selected from the group consisting of alkali metal hydrosulfides, alkali metal monosulfides, and alkali metal polysulfides;
- (b) maintaining the vessel contents at a temperature high enough so that there is essentially no liquid water in the vessel during contacting;
- (c) feeding steam to the reaction vessel to contact the vessel contents;
- (d) withdrawing vapors from the reaction vessel, said vapors containing the said hydrocarbon products;
- and
- (e) recovering the said hydrocarbon products from the withdrawn vapors.
A process of hydrogenating, hydrocracking, denitrogenating, and demetallizing carbonaceous material to produce principally normally liquid hydrocarbon products of increased hydrogen content as compared to the carbonaceous material, said process comprising:
- (a) contacting the carbonaceous material with an empirical hydrate of an alkali metal hydrosulfide selected from the group consisting of potassium hydrosulfide and sodium hydrosulfide in a reaction vessel;
- (b) maintaining the vessel contents at a temperature high enough so that there is essentially no liquid water in the vessel during contacting;
- (c) feeding steam to the vessel to contact the vessel contents;
- (d) withdrawing vapors from the reaction vessel, said vapors containing the said hydrocarbon products;
- and
- (e) recovering the said hydrocarbon products from the withdrawn vapors.
Dependencies are inferred from the claim text.