Catalyst for Selectively Producing Acetic Acid Through the Partial Oxidation of Ethane
AssigneesKing Abdulaziz City for Science and Technology, King Saud University
InventorsYousef S. Al-Zeghayer, Moustafa A. Soliman, Sulaiman Al-Mayman, Abdulrhman S. Al-Awadi
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Abstract
The invention relates to the development of a catalyst for selectively producing acetic acid from a gaseous feedstock of ethane, ethylene or mixtures thereof and oxygen at a low temperature. Said gaseous feedstock is brought together with a catalyst containing the oxides of Mo, V and Nb and nano metallic Pd optionally together with a hetero-poly acid and/or Sb and Ca. The present catalytic system provides both higher selectivity and yield of acetic with minimal production of side products of ethylene and CO.
Claims20
A catalyst comprising oxides of Mo, V and Nb and nano metallic Pd, the catalyst having a composition represented by the formula MoaVbNbcPddOx wherein
- a is 16,
- b is 4 to 10,
- c is 0.2 to 4, and
- d is 0.001 to 0.02, and
- wherein x is a number determined by the valence requirements of the other elements in the catalyst composition.
A catalyst for selective oxidation of ethane to acetic acid, the catalyst made by a process comprising the steps of:
- a) combining the elements Mo, V, Nb and Pd in the following ratio to form a composition having the formula:
- MOaVbNbcPdd
- a is 16;
- b is 4 to 10;
- c is 0.2 to 4;
- and
- d is 0.001 to 0.02;
- and
- b) calcining said composition to form said catalyst.
Dependencies are inferred from the claim text.