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US 2026/0308097 A1Published application
Hydroformylation process
AssigneeDow Technology Investments LLC
InventorsChristophe R. Laroche, Glenn A. Miller, Michael A. Brammer, Jason F. Giles, Amarnath Singh
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Abstract
The process of the invention is such a continuous hydroformylation process comprising: (a) removing from a reactor a crude product; (b) sending the crude product to a vaporizer; (c) separating the crude product in the vaporizer to produce a catalyst-containing liquid stream and a gas phase stream; and (d) maintaining an average CO partial pressure in the vaporizer of less than 15 psia (103 kPa) with reduced H2 content.
Claims11
A continuous hydroformylation process comprising:
- (A) feeding a reaction fluid comprising one or more products, one or more heavy by-products, a transition metal-organophosphite ligand complex catalyst, one or more unconverted reactants, and one or more inert lights into a vaporizer having an average CO partial pressure;
- (B) removing from the vaporizer an overhead gas stream comprising one or more products, one or more unconverted reactants, one or more inert lights, and a portion of the heavy by-products, and feeding said overhead gas stream into a condenser;
- (C) removing from the condenser a condenser overhead gas stream comprising one or more unconverted reactants and one or more inert lights;
- (D) recycling at least a portion of said condenser overhead gas stream to the vaporizer and/or a reaction zone;
- (E) removing as a tails stream from the vaporizer, a liquid recycle catalyst stream comprising the transition metal-organophosphite ligand complex catalyst and the balance of the heavy by-products;
- wherein the average CO partial pressure in the vaporizer is maintained at less than 15 psia (110 kPa).
3 more elements
Dependencies are inferred from the claim text.