초록 ▼

A textured catalyst having a hydrothermally-stable support, a metal oxide and a catalyst component is described. Methods of conducting aqueous phase reactions that are catalyzed by a textured catalyst are also described. The invention also provides methods of making textured catalysts and methods of

A textured catalyst having a hydrothermally-stable support, a metal oxide and a catalyst component is described. Methods of conducting aqueous phase reactions that are catalyzed by a textured catalyst are also described. The invention also provides methods of making textured catalysts and methods of making chemical products using a textured catalyst.

대표청구항 ▼

1. A method of catalyzing a reaction comprising: passing an aqueous mixture comprising at least one reactant into a reaction chamber; providing a catalyst within the reaction chamber, the catalyst comprising a hydrothermally stable support having an exterior surface; a metal oxide; and a cat

1. A method of catalyzing a reaction comprising: passing an aqueous mixture comprising at least one reactant into a reaction chamber; providing a catalyst within the reaction chamber, the catalyst comprising a hydrothermally stable support having an exterior surface; a metal oxide; and a catalytic metal, at least 5% of the catalytic metal being disposed within pores that are at least about 10 μm away from the exterior surface of the support; reducing the at least one reactant in the presence of the catalyst and under hydrothermal conditions, the reducing occurring at a pH of from about 1 to about 6; and obtaining at least one reduction product from the reaction chamber, wherein the reduction product obtained has a higher purity or a higher yield than where the reaction is conducted at a pH that is 4 or more pH units from the pH of said aqueous solution. 2. The method of claim 1 wherein the aqueous solution has a pH between 2 and 5. 3. The method of claim 1 wherein the reaction occurs in a temperature range of 120° C. to 260° C. 4. A method of catalyzing a reaction comprising: passing an aqueous solution comprising at least one reactant into a reaction chamber; providing a catalyst within the reaction chamber, the catalyst comprising: a porous, hydrothermally-stable support having a total pore volume, at least 20% of the total pore volume being contributed by pores having diameters of greater than about 20 angstroms; a metal oxide deposited on the support; and a catalyst metal component; reacting the at least one reactant in the presence of the catalyst and under hydrothermal conditions; and obtaining at least one product from the reaction chamber. 5. The method of claim 4 further comprising adding a second reactant to the reaction chamber in a non-aqueous solvent. 6. The method of claim 4 wherein the step of reacting occurs in a temperature range of 120° C. to 260° C. 7. The method of claim 4 wherein the step of reacting occurs at a pH of 1 to 6. 8. The method of claim 4 wherein the reactant is completely dissolved in aqueous solution. 9. The method of claim 4 further comprising addition of hydrogen gas to the reaction chamber. 10. The method of claim 9 wherein the reactant comprises succinic acid. 11. The method of claim 4 wherein the support comprises carbon, and wherein the metal oxide comprises one or more of Zr, Ti, Hf, Ta, Nb, Mo, and W.