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1. WO2009009976 - CATALYST COMBINATION AND PROCESS FOR DIRECT LIQUEFACTION OF CARBONACEOUS MATERIALS BY USING THE SAME

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[ EN ]

CLAIMS:

1. A catalyst combination for direct liquefaction of carbonaceous materials, comprising:
a) an iodine-containing substance, and
b) a sulfur oxide species.
2. The catalyst combination according to claim 1 , wherein the iodine-containing substance is selected from a group comprising iodine element, iodine oxide, iodic acid anhydride, ammonium iodide, alkaline metal iodides, alkaline earth metal iodides, ammonium iodate, alkaline metal iodates, alkaline earth metal iodates, boron iodide, and mixtures thereof, wherein the alkaline metal is lithium, sodium, potassium, rubidium, or cesium, and the alkaline earth metal is beryllium, magnesium, calcium, strontium, or barium.
3. The catalyst combination according to claim 1 or 2, wherein the sulfur oxide species is selected from a group comprising sulfur trioxide, sulfur dioxide, oleum, concentrated sulfuric acid, and mixtures thereof.
4. The catalyst combination according to any one of claims 1 to 3, wherein the catalyst combination further comprises a solvent.
5. The catalyst combination according to claim 4, wherein the solvent is a hydroaromatic solvent selected from a group comprising tetralin, tetrahydroquinoline, pipehdine, indoline, perhydropyrene, pyrolidine, hydrogenated anthracene oil, hydrogenated coal liquids, catalytic cracking residual oil, and mixtures thereof.
6. The catalyst combination according to any one of claims 1 to 5, wherein the catalyst combination further comprises a carbonaceous material.
7. The catalyst combination according to claim 6, wherein the carbonaceous material is selected from a group comprising bituminous coal, brown coal, hard coal, sub-bituminous coal, anthracite coal, peat and lignite, oil shale, petroleum, tar sands, oil shale, man-made residual oils, tars and heavy hydrocarbon residues, and mixtures thereof.
8. The catalyst combination according to any one of claims 1 to 7, wherein the catalyst combination has a weight ratio of iodine-containing substance : sulfur oxide species of 0.2-10 : 1 -20.
9. The catalyst combination according to any one of claims 6 to 7, wherein the catalyst combination has a weight ratio of iodine-containing substance : sulfur oxide species : solvent : carbonaceous material of 0.2-10 : 1 -20 : 0-1000 : 0-100.
10. A process for direct liquefaction of a carbonaceous material, comprising heating the carbonaceous material in a solvent in the presence of an iodine-containing substance and a sulfur oxide species at a temperature in the range of 250°C to 750°C under a pressure in the range of 0.1 MPa to 120MPa of a gas containing a hydrogen-donor .
11. The process according to claim 10, wherein at least a part of the iodine-containing substance and at least a part of the sulfur oxide species are provided by a catalyst combination comprising:
a) an iodine-containing substance, and
b) a sulfur oxide species.
12. The process according to claim 11 , wherein the catalyst combination is a catalyst combination according to any one of claims 1 to 9.
13. The process according to any one of claims 10 to 12, wherein the solvent is a hydroaromatic solvent selected from a group comprising tetralin, tetrahydroquinoline, pipehdine, indoline, perhydropyrene, pyrolidine, hydrogenated anthracene oil, hydrogenated coal liquids, catalytic cracking residual oil, and mixtures thereof.
14. The process according to any one of claims 10 to 13, wherein the carbonaceous material is selected from a group comprising bituminous coal, brown coal, hard coal, sub-bituminous coal, anthracite coal, peat and lignite, oil shale, petroleum, tar sands, oil shale, man-made residual oils, tars and heavy hydrocarbon residues, and mixtures thereof.
15. The process according to any one of claims 10 to 14, wherein the hydrogen-donor is selected from a group comprising natural gas, coal-bed gas, methane, ethane, coal oven gas, hydrogen, and mixtures thereof.
16. The process according to any one of claims 10 to 15, wherein the weight ratio of iodine-containing substance : sulfur oxide species : solvent : carbonaceous material is 0.2-10 : 1 -20 : 50-1000 : 10-100.
17. The process according to any one of claims 10 to 16, wherein the carbonaceous materials are heated at a temperature of 280-420 °C under a pressure of 7-12MPa, for a time period of 0.5-3.5 hours, wherein the partial pressure of hydrogen-donor is 2-10MPa.
18. Use of a catalyst combination according to any one of claims 1 to 9 for direct liquefaction of a carbonaceous material.
The use according to claim 18, wherein the carbonaceous material is selected from a group comprising bituminous coal, brown coal, hard coal, sub-bituminous coal, anthracite coal, peat and lignite, oil shale, petroleum, tar sands, oil shale, man-made residual oils, tars and heavy hydrocarbon residues, and mixtures thereof.