Method for providing a co-feed in the coupling of toluene with a carbon source
AssigneeFina Technology, Inc.
InventorsJoseph E. Pelati, James R. Butler, Sivadinarayana Chinta
Life of this patent
Estimating the term…
Abstract
A process for making styrene is disclosed that includes reacting toluene with a C1 source and a co-feed in the presence of a catalyst in a reactor to form a first product stream comprising styrene, ethylbenzene, carbon monoxide, and hydrogen; separating the hydrogen and carbon monoxide from the first product stream to form a second stream; separating the hydrogen from the second stream to form a third stream comprising hydrogen and a fourth stream comprising carbon monoxide; wherein the fourth stream is recycled to the reactor and forms at least a portion of the co-feed.
Claims5
A method of making styrene, comprising:
- reacting toluene with a C1 source and a co-feed in the presence of a catalyst in a reactor to form a first product stream comprising styrene, ethylbenzene, carbon monoxide, and hydrogen;
- separating the hydrogen and carbon monoxide from the first product stream to form a second stream;
- separating the hydrogen from the second stream to form a third stream comprising hydrogen and a fourth stream comprising carbon monoxide;
- wherein the fourth stream is recycled to the reactor and forms at least a portion of the co-feed;
- wherein the C1 source is selected from the group consisting of methanol, formaldehyde, formalin, trioxane, methylformcel, paraformaldehyde, methylal, dimethyl ether, and combinations thereof;
- wherein the catalyst comprises at least one promoter on a support material comprising a zeolite;
- wherein the at least one promoter is selected from the group consisting of Ce, Cu, P, Co, Cs, Ga, and B and combinations thereof.
Dependencies are inferred from the claim text.