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AssigneeEverNu Technology, LLC
InventorsManhua Lin, Waisi Eng
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Disclosed is a catalyst system, its methods of preparation and its use for producing, among others, alkenes and/or saturated or unsaturated oxygenates and, which include at least one of an aldehyde and an acid (such as propyl aldehyde, acrolein, acrylic acid, isobutyl aldehyde, methacrolein, methacrylic acid), comprising subjecting the corresponding an alcohol or a diol selected from the group consisting of propanol, propanediol and isobutanol that is derivable from biomass, to a vapor phase process over the catalytic system described herein in the presence of a gas mixture of oxygen, air or nitrogen and/or other suitable diluting gas. In the case where one of 1-propanol, or 1,2-propanediol or 1,3-propanediol or a mixture thereof is subjected to a vapor phase catalytic process over the said catalytic system in the presence of air or oxygen, and a co-fed gas, such as nitrogen or other diluting gas, the product is at least one of propylene, propyl aldehyde, acrolein and acrylic acid. In the case where isobutanol is subjected to such a process, the product is at least one of isobutylene, isobutyl aldehyde, methacrolein and methacrylic acid. The catalyst system comprises a single catalytic zone or multi-catalytic zones, in each of which the composition of the co-feed and other reaction parameter can be independently controlled.
A heterogeneous catalytic process for producing a C3 or C4 alkene, a C3 or C4 unsaturated aldehyde, and a C3 or C4 unsaturated carboxylic acid, comprising subjecting a feed gas mixture including an alcohol or a diol selected from the group consisting of 1, 2-propanediol or 1, 3-propanediol and isobutanol, and one or more co-feed gases, which comprises air or oxygen or nitrogen, and, optionally, one or more other suitable diluting gases, to a vapor phase reaction in a heated reactor in the presence of a solid catalyst system having a single or multiple catalytic zone(s), each of which independently comprising a compound having the formula AaSbbXxYyZzOn wherein A is Mo or W, X is an element selected from the group consisting of Ce, Co, Fe, Mg, Ni, Sn, V, W and Zn, Y is one selected from the group consisting of Ag, Au, Cr, Cu, La, Mn, Mo, Nb, P, Pb, Rb, Re, Ru, Ti, and Z is one or more element from the X or Y groups or from the following:
A heterogeneous catalytic process for producing a C3 or C4 alkene, a C3 or C4 unsaturated aldehyde, and a C3 or C4 unsaturated carboxylic acid, comprising subjecting a feed gas mixture including an alcohol or a diol selected from the group consisting of 1, 2-propanediol or 1, 3-propanediol and isobutanol, and air or oxygen or nitrogen, and optionally one or more other suitable diluting gases, to a vapor phase reaction in a heated reactor in the presence of a solid catalyst system having a single or multiple catalytic zone(s), each of which independently comprising a compound having the formula AaXxYyZzOn wherein A is Mo or W, X is Sb, Y is one selected from the group consisting of Ag, Au, Cr, Cu, La, Mn, Mo, Nb, P, Pb, Rb, Re, Ru, Ti, and Z is one from the X or Y groups or from the following:
Dependencies are inferred from the claim text.