Method and catalyst structure for steam reforming of a hydrocarbon
AssigneeBattelle Memorial Institute
InventorsYong Wang, David P. Vanderwiel, Anna Lee Y. Tonkovich
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Abstract
The present invention includes an improvement to the existing method of steam reforming of hydrocarbon, wherein the improvement comprises: the flowing is at a rate providing a residence time less than about 0.1 sec resulting in obtaining product formation yield or amount that is the same or greater compared to product formation at a longer residence time. Another improvement of the present invention is operation at a steam to carbon ratio that is substantially stoichiometric and maintaining activity of the supported catalyst. The present invention also includes a catalyst structure for steam reforming of a hydrocarbon.
Claims21
A method for steam reforming of a hydrocarbon comprising:
- reacting a mixture of steam and a hydrocarbon over a supported catalyst at a temperature from about 650° C. to about 900° C.;
- wherein said supported catalyst comprises a spinel support and a catalyst metal;
- wherein said step of reacting a mixture of steam and a hydrocarbon is conducted at a residence time of less than about 0.1 second;
- and
- wherein said step of reacting results in at least about 50% of hydrocarbon conversion and a CO selectivity of less than about 70%.
A method for steam reforming of a hydrocarbon comprising:
- reacting a mixture of steam and a hydrocarbon over a supported catalyst at a temperature from about 600° C. to about 1000° C.;
- wherein said supported catalyst comprises a spinel support and a catalyst metal;
- wherein said step of reacting a mixture of steam and a hydrocarbon is conducted at a residence time of less than about 0.1 second;
- wherein said mixture of steam and hydrocarbon has a steam to carbon ratio of greater than about 0.9 and less than 2.5;
- wherein said method is continuously conducted for over 40 hours;
- and
- wherein between about 26 hours time-on-stream and about 40 hours time-on-stream, the CO selectivity remains essentially unchanged and the hydrocarbon conversion changes less than about 5%.
Dependencies are inferred from the claim text.