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US 9,012,708 B2Granted
Method for production of styrene from toluene and methane
AssigneeFina Technology, Inc.
InventorsJames R. Butler, Joseph E. Pelati
Life of this patent
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Abstract
A process is disclosed for making styrene by converting methanol to formaldehyde in a reactor then reacting the formaldehyde with toluene to form styrene in a separate reactor.
Claims16
A process for making styrene comprising:
- reacting toluene and formaldehyde in one or more reactors over a metal oxide selected from a group consisting of CuO, ZnO—CuO, ZnO—CuO—Al2O3, CuCr2O3, ZnCr2O3, and ZnO—CuO—Cr2O3, to form a product stream comprising styrene.
A process for making styrene comprising:
- converting methanol to formaldehyde in one or more first reactors to form a first product stream comprising formaldehyde;
- passing the first product stream to a separation stage for separating formaldehyde from the first product stream;
- and
- reacting toluene and formaldehyde in one or more second reactors over a metal oxide selected from a group consisting of CuO, ZnO—CuO, ZnO—CuO—Al2O3, CuCr2O3, ZnCr2O3, and ZnO—CuO—Cr2O3, to form a second product stream comprising styrene.
1 more element
Dependencies are inferred from the claim text.