CPC C01G 49/06 (2013.01) [B01J 23/745 (2013.01); B01J 37/08 (2013.01); B01J 37/18 (2013.01); C01B 3/40 (2013.01)] | 11 Claims |
1. A method of dry reforming hydrocarbon, comprising:
receiving a black powder collected from a natural-gas pipeline system and that formed on an inside surface of a natural gas pipeline of the natural-gas pipeline system, the black powder comprising magnetite and hematite;
reacting hydrocarbon comprising methane with carbon dioxide via reforming catalyst at a temperature in a range of 500° C. to 1100° C. and at a pressure in a range of 1 bar to 28 bar to generate synthesis gas comprising hydrogen and carbon monoxide, wherein the reforming catalyst comprises a treated black powder comprising at least 50 weight percent of hematite, wherein the treated black powder comprises the black powder subjected to heat treatment at a temperature of at least 500° C. to remove carbon from the black powder and then subjected to air calcination at a temperature of at least 775° C. to give calcined black powder as the treated black powder.
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