Process for the hydrogenative conversion of heavy oils and residual oils, used oils and waste oils, mixed with sewage sludge
First Claim
1. A process for the hydrogenative conversion of a mixture of a raw oil and sewage sludge to liquid and gasous hydrocarbon products, comprising the step of:
- hydrogenating said mixture in the liquid phase or combined liquid and gas phases with a hydrogen-containing gas, said gas having a hydrogen partial pressure of 50-300 bar, at a temperature of 250°
-500°
C., with a gas/oil ratio of 100-10,000 m3 /t, wherein said hydrogenation is conducted in the presence of at least one additive selected from the group consisting of anthracite cokes, lignite cokes, carbon blacks, activated cokes, petroleum cokes, furnace dust, dusts from Winkler gasification of coal, red mud, iron oxides, electrostatic filter dusts and cyclone dusts, said additive being present in an amount from 0.5-5 wt. % based on the total amount of said mixture, and said additive comprising (1) two different particle size fractions, a fine particle size fraction having a particle size of 90 microns or less and a coarse particle size fraction having a particle size of 100-2,000 microns, or (2) a continuous particle size distribution having a particle size of 100-2,000 microns, wherein the hydrogenation is carried out with a weight ratio of raw oil to sewage sludge in the range of 10;
1 to 1;
1.5.
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Accused Products
Abstract
Process for the hydrogenative conversion of heavy oils and residual oils, used oils and waste oils, mixed with sewage sludge in a typical liquid phase hydrogenator with gases containing hydrogen, with the addition of a finely ground substance that preferably has a large internal surface area, as additive. The additive is added in two different particle size ranges so that a portion of the additive is present as a fine particle size fraction iwth a particle size of 90 μm or less and another portion as a coarse particle size fraction with a particle size of 100 μm to 2000 μm, preferably 100 to 1000 μm with the procedure being carried out with a weight ratio of raw oils to sewage sludge used of 10:1 to 1:1.5. Conversion of vacuum residue of a Venezuelan heavy oil with the addition of 2 wt. % of lignite coke as additive and with the admixture of 10 wt. % industrial or municipal sewage sludge in a liquid phase hydrogenator to obtain useful liquid products in particular, and extensive conversion of the organic fractions of the sewage sludge.
64 Citations
15 Claims
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1. A process for the hydrogenative conversion of a mixture of a raw oil and sewage sludge to liquid and gasous hydrocarbon products, comprising the step of:
hydrogenating said mixture in the liquid phase or combined liquid and gas phases with a hydrogen-containing gas, said gas having a hydrogen partial pressure of 50-300 bar, at a temperature of 250°
-500°
C., with a gas/oil ratio of 100-10,000 m3 /t, wherein said hydrogenation is conducted in the presence of at least one additive selected from the group consisting of anthracite cokes, lignite cokes, carbon blacks, activated cokes, petroleum cokes, furnace dust, dusts from Winkler gasification of coal, red mud, iron oxides, electrostatic filter dusts and cyclone dusts, said additive being present in an amount from 0.5-5 wt. % based on the total amount of said mixture, and said additive comprising (1) two different particle size fractions, a fine particle size fraction having a particle size of 90 microns or less and a coarse particle size fraction having a particle size of 100-2,000 microns, or (2) a continuous particle size distribution having a particle size of 100-2,000 microns, wherein the hydrogenation is carried out with a weight ratio of raw oil to sewage sludge in the range of 10;
1 to 1;
1.5.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
Specification