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US 9,790,435 B2Granted
Green diesel production from hydrothermal catalytic decarboxylation on a supported Pd—Co catalyst
AssigneeWayne State University
InventorsElvan Sari, Steven O. Salley, K. Y. Simon Ng
Life of this patent
Estimating the term…
Abstract
Materials and methods for converting brown grease to useful diesel fuel are described. One material is a palladium catalyst on a silicon/carbon support. A method comprises flowing fresh hydrogen over a reaction of diluted brown grease on a palladium/carbon catalyst.
Claims19
A catalyst for decarboxylation of a fatty acid, the catalyst comprising:
- about 0.5% to about 10% palladium by weight;
- and
- a support comprising silicon atoms and carbon atoms, a ratio of carbon atoms to silicon atoms of the support being about 3:1 to about 40:1.
A method of making a catalyst for decarboxylation of a fatty acid, the method comprising:
- combining activated carbon with tetraethyl orthosilicate to form a support, a ratio of carbon atoms to silicon atoms of the support being about 3:1 to about 40:1;
- mixing a palladium solution with the support to result in the catalyst finally comprising about 0.5% to about 10% palladium by weight;
- and
- drying the catalyst.
1 more element
A method of converting brown grease to green diesel, the method comprising:
- diluting the brown grease with a diluent;
- combining brown grease with a catalyst comprising about 0.5% to about 10% palladium by weight on a support comprising silicon atoms and carbon atoms in a reactor having a gas flow intake and a gas relief valve, a ratio of carbon atoms to silicon atoms of the support being about 3:1 to about 40:1;
- and
- providing a volume of gas comprising hydrogen gas through the gas flow intake and allowing gas to exhaust through the gas relief valve to maintain a pressure of about 1.5 megapascal.
1 more element
Dependencies are inferred from the claim text.