Processes for synthesizing paraxylene and catalyst for same
AssigneeUop LLC
InventorsSteven L. Chmura, Erin M. Broderick, Gregory B. Kuzmanich, Jaime G. Moscoso
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Abstract
Processes and a catalyst for the cycloaddition of an olefin, such as C2 to C4 olefins like, ethylene, propylene and butylene, to a biomass derived compound, such as dimethylfuran, furan, methylfuran. The catalyst has a relatively low silica to alumina ratio of around 25 compared with conventional catalysts which have a ratio greater than 1000. The catalyst has phosphorus and may be a beta zeolite. Such a catalyst can be used to generate a high yield of bio-based para-xylene.
Claims15
A process for a cycloaddition of an olefin to a biomass derived compound, the process comprising:
- contacting an olefin and a biomass derived compound with a catalyst, wherein a molar ratio of the olefin to the biomass derived compound is in a range from 3:2 to 100:1,
- the catalyst comprising a silicon and aluminum in a ratio of less than 1000:1, wherein the catalyst further comprises phosphorus.
A process for producing para-xylene, the process comprising:
- providing an olefin;
- providing a compound derived from a biomass;
- and,
- contacting the olefin and the compound derived from the biomass in the presence of a catalyst, wherein a molar ratio of the olefin to the compound derived from the biomass is in a range from 3:2 to 100:1, the catalyst comprising a silicon and aluminum in a ratio of less than 1000:1, wherein the catalyst further comprises phosphorus.
Dependencies are inferred from the claim text.