Systems and processes for catalytic conversion of c1-c5 alcohols to c2-c5 olefin mixtures
AssigneeGevo, Inc.
InventorsJonathan Smith, Andrew Ingram
Life of this patent
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Abstract
Processes for converting one or more C1-C5 linear or branched alcohols to one or more C2-C5 olefins are provided. In one exemplary embodiment, the process can be a single stage process for the direct conversion of C1-C5 alcohols to olefinic mixtures (e.g., C2-C5) carried out in a reactor using a catalyst that includes zeolite doped with boron and phosphor. Systems for carrying out these processes are also provided.
Claims26
A process for converting one or more C1-C5 linear or branched alcohols to one or more C2-C5 olefins, the process comprising:
- contacting an input stream comprising the one or more C1-C5 linear or branched alcohols with a catalyst in a reactor to form an output stream comprising the one or more C2-C5 olefins, the catalyst consisting essentially of zeolite doped with boron and phosphor;
- wherein the reactor is at a temperature from about 300° C. to about 600° C., a gauge pressure from 0 to about 30 bar, and a weight hourly space velocity (WHSV) from about 0.25 to about 10.
A process for converting one or more C1-C5 linear or branched alcohols to one or more C2-C5 olefins, the process comprising:
- contacting an input stream comprising the one or more C1-C5 linear or branched alcohols with a single catalyst in a reactor to form an output stream comprising the one or more C2-C5 olefins, the single catalyst comprising zeolite doped with boron and phosphor;
- wherein the reactor is at a temperature from about 350° C. to about 750° C., a gauge pressure from 0 to about 30 bar, and a weight hourly space velocity (WHSV) from about 0.25 to about 5.
A process for converting one or more C1-C5 linear or branched alcohols to one or more C2-C5 olefins, the process comprising:
- contacting an input stream comprising the one or more C1-C5 linear or branched alcohols with a catalyst in a reactor to form an output stream comprising the one or more C2-C5 olefins, the catalyst consisting essentially of a ZSM-5 zeolite doped with boron and phosphor;
- wherein the reactor is at a temperature from about 350° C. to about 475° C., a gauge pressure from 0 to about 5 bar, and a weight hourly space velocity (WHSV) from about 0.25 to about 10;
- wherein boron is present in the catalyst in an amount from about 0.05 wt. % to about 5 wt. %, and wherein phosphor is present in the catalyst in an amount from about 0.2 wt. % to about 7 wt. %.
Dependencies are inferred from the claim text.