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US 9,895,676 B2Granted
Processes and catalysts for converting alkanes to alkenes
AssigneeSajet Development LLC
InventorsJorge Miller, Luisa Kling Miller, Barry L. Stucky
Life of this patent
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Abstract
Generally, regenerable, encapsulated metal oxide catalysts comprising a ceramic matrix and metal catalysts may be used to convert alkanes to alkenes. The encapsulated metal oxide catalyst may be tailored to produce a variety of alkenes including ethylene, butylene, and propylene. Further, the encapsulated metal oxide catalysts advantageously allow for regeneration and reactant recovery for cost effective and environmentally friendly processes.
Claims21
A method comprising:
- producing a dough comprising a clay, a metal organic salt, and water, wherein the metal organic salt is present in an amount of about 5% to about 50% of a metal of the metal organic salt by weight of the clay;
- forming a plurality of pellets from the dough;
- drying the pellets;
- calcining the pellets so as to form a plurality of encapsulated metal oxide catalysts that comprise a porous ceramic matrix and metal catalysts dispersed therein;
- and
- washing the encapsulated metal oxide catalysts with a water-miscible organic solvent, wherein the encapsulated metal oxide catalysts comprise a plurality of pores containing the metal catalysts having an average diameter of about 5 nm to about 300 nm.
3 more elements
A method comprising:
- producing a dough comprising a clay, a metal organic salt, and water, wherein the metal organic salt is present in an amount of about 5% to about 50% of a metal of the metal organic salt by weight of the clay;
- forming a plurality of pellets from the dough;
- drying the pellets;
- calcining the pellets so as to form a plurality of encapsulated metal oxide catalysts that comprise a porous ceramic matrix and metal catalysts dispersed therein;
- and
- washing the encapsulated metal oxide catalysts with a water-miscible organic solvent, wherein the encapsulated metal oxide catalysts have a void volume of about 25% to about 85%.
3 more elements
A method comprising:
- producing a dough comprising a clay, a metal organic salt, and water, wherein the metal organic salt is present in an amount of about 5% to about 50% of a metal of the metal organic salt by weight of the clay;
- forming a plurality of pellets from the dough;
- drying the pellets;
- calcining the pellets so as to form a plurality of encapsulated metal oxide catalysts that comprise a porous ceramic matrix and metal catalysts dispersed therein;
- and
- washing the encapsulated metal oxide catalysts with a water-miscible organic solvent, wherein the encapsulated metal oxide catalysts have a crush strength of about 10,000 psi or greater.
3 more elements
Dependencies are inferred from the claim text.