Methods and compositions for hydrodeoxygenation of carbohydrates and carbohydrate analogs
AssigneeUniversity of South Carolina
InventorsBlake H. MacQueen, Elizabeth Barrow, Jochen Lauterbach
Life of this patent
Estimating the term…
Abstract
This disclosure provides embodiments directed to compositions, methods, and processes to produce compounds having the structure: each of R1-R5 is selected from a hydroxyl group and hydrogen; and R1-R5 include at least one hydroxyl group and at least one hydrogen; and n=0-2. In particular, methods of the disclosure can include reacting a precursor, the precursor containing more oxygen (O) atoms than the compound, with a gas containing hydrogen (H2) in the presence of a catalyst.
Claims18
A method for the production of a compound, the method comprising:
- reacting a precursor, the precursor comprising a carbohydrate or a carbohydrate derivative containing a greater number of oxygen atoms than the compound, with a gas containing H2 in the presence of a catalyst, at a pressure less than about 40 bar;
- the compound comprising:
- wherein each of R1-R5 is selected from the group consisting of:
- a hydroxyl group and hydrogen;
- and wherein R1-R5 comprise at least one hydroxyl group and at least one hydrogen;
- and wherein n=0-2, and
- wherein the catalyst comprises a support comprising CeO2 and the support is impregnated with both Re and Pd.
A process for converting a carbohydrate or carbohydrate derivative to a compound, the process comprising:
- adding the carbohydrate or carbohydrate derivative to a reactor containing a catalyst;
- reacting the carbohydrate or carbohydrate derivative with a gas containing hydrogen at a reaction pressure and a reaction temperature over a reaction time;
- and
- purifying a portion of the compound from a product stream,
- wherein, the reaction pressure is less than 40 bar, the reaction temperature is between about 120° C. to about 200° C., and the reactor is designed for batch reaction, and
- wherein the catalyst comprises a support comprising CeO2 and the support is impregnated with both Re and Pd.
Dependencies are inferred from the claim text.