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US 2025/0100954 A1Published application
Systems and methods for carrying out a metathesis reaction
AssigneeSabic Global Technologies B.V.
InventorsSaud ALKHUDEER, Aspi Kersasp KOLAH, Vidya Sagar GUGGILLA, Venugopal BV, Rajeshwer DONGARA
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Abstract
Systems and methods for carrying out metathesis reaction by utilizing one or more side reactors to a reactive distillation column is disclosed. The one or more side reactors is used to effect a reactive pump-around process. The systems and methods are used for equilibrium limited reactions such as the metathesis of C4 olefins.
Claims20
A method of producing a product by metathesis reaction, the method comprising:
- distilling a distillation column feed stream in a distillation column;
- withdrawing a side stream from the distillation column;
- reacting, in a first side reactor, reactants of the side stream, by metathesis reaction, to form a first side reactor effluent stream;
- distilling the first side reactor effluent stream in the distillation column;
- and
- flowing, from the distillation column, a stream comprising product.
3 more elements
A method of producing ethylene and/or propylene by metathesis reaction of C4 hydrocarbons, the method comprising:
- contacting, in a pre-distillation reactor, reactants of a feed stream comprising C4 hydrocarbons in the presence of a first catalyst comprising Re/γ-Alumina and/or K/γ-Alumina and thereby carrying out a metathesis reaction that forms a distillation column feed stream comprising ethylene and/or propylene and unreacted C4 hydrocarbons;
- distilling the distillation column feed stream in a distillation column;
- withdrawing a side stream from the distillation column;
- contacting, in a first side reactor, unreacted C4 hydrocarbons of the side stream in the presence of a second catalyst comprising Re/γ-Alumina and thereby carrying out a metathesis reaction, to form a first side reactor effluent stream;
- distilling the first side reactor effluent stream in the distillation column;
- and
- flowing, from the distillation column, a stream comprising ethylene and/or propylene.
4 more elements
Dependencies are inferred from the claim text.