20-02-2020 дата публикации
Номер: US20200055030A1
Принадлежит:
Disclosed herein, inter alia, are novel nickel-iron-magnesium oxide catalyst compositions and methods of making and using the same. 1. A catalyst comprising nickel (Ni) , iron (Fe) , and magnesium oxide (MgO) , wherein the catalyst comprises about 30 to 60 wt % Ni , about 10 to 30 wt % Fe , and about 20 to 50 wt % MgO.2. The catalyst of claim 1 , wherein the weight ratio is about 40 to 50 wt % Ni claim 1 , 15 to 25 wt % Fe claim 1 , and 30 to 40 wt % MgO.3. The catalyst of claim 1 , wherein the weight ratio is about 45 wt % Ni claim 1 , 20 wt % Fe claim 1 , and 35 wt % MgO.4. The catalyst of claim 1 , wherein the catalyst further comprises a substrate support.5. The catalyst of claim 4 , wherein the substrate support comprises one or more of the ceramic claim 4 , olivine claim 4 , dolomite claim 4 , calcium carbonate claim 4 , aluminum oxide claim 4 , silicon dioxide claim 4 , titanium dioxide claim 4 , and iron oxide.6. The catalyst of claim 4 , wherein the substrate support comprises aluminum oxide claim 4 , silicon dioxide claim 4 , titanium dioxide claim 4 , and iron oxide.7. The catalyst of claim 4 , wherein the catalyst to substrate support weight ratio is 0.5-5.0%.8. The catalyst of claim 4 , wherein the catalyst to substrate support weight ratio is 0.75-1.15%.9. The catalyst of claim 1 , wherein the substrate support is spherical and about 400 to about 600 μm in diameter.10. The catalyst of claim 1 , wherein the catalyst has a honeycomb structure.11. A method of making a nickel-iron-magnesium oxide catalyst claim 1 , said method comprising:(a) mixing nickel nitrate, iron nitrate, and magnesium nitrate in a solvent;(b) combining the solution of step (a) with a substrate support to form a mixture;{'sub': 1', '1, '(c) maintaining the mixture of step (b) at a first temperature (T) for a first duration of time (t);'}{'sub': 2', '2', '2', '1, '(d) increasing the temperature of the mixture in step (c) to a second temperature (T) and maintaining Tfor a second ...
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