Single step conversion of ethanol to butadiene
AssigneeBattelle Memorial Institute
InventorsVanessa Dagle, Robert A. Dagle
Life of this patent
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Abstract
A process for producing 1,3-butadiene (BD) from ethanol in a single step by s7passing a mixture containing ethanol in a gas phase over a multifunctional catalyst having a transition metal dispersion of at least 30% on a silica metal oxide support. In some examples the multifunctional catalyst comprises a silica metal oxide having a surface area of at least 200 m{circumflex over ( )}2/g. The multifunctional catalyst can include a transition metal oxide, a silica metal oxide made from a high purity silica gel, mesoporous silica and fumed silica, such as high purity SBA16, SBA15, or Davisil grade 646.
Claims12
A method for producing 1,3-butadiene (BI)) from ethanol the method comprising:
- passing a gaseous feed containing the ethanol over a multi-functional catalyst to produce the 1,3-butadiene (BD);
- wherein
- the multifunctional catalyst comprises a silica support, said silica support comprises 1-10 wt % ZrO2 and has a Lewis Acid site concentration of 10-35 μmole/gram;
- and the multifunctional catalyst comprises silver (Ag) or copper (Cu) having a dispersion of at least 40% on the silica metal oxide support.
A process for producing 1,3-butadiene (BD) from ethanol in a single step, comprising the step of passing a feed containing ethanol in gas phase over a 1% Ag/4% ZrO2/SiO2-SBA-16 catalyst having a Ag dispersion of at least 40% on the SiO2-SBA-16 support.
Dependencies are inferred from the claim text.