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US 2019/0169093 A1Published application
Catalyst and Process for Olefin Metathesis Reaction
AssigneeBorealis AG
InventorsMariana Stoyanova, Evgeny Kondratenko, David Linke, Eberhard Ernst
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Abstract
The present invention relates to the use of magnesium oxide (MgO) as catalyst for isomerisation of olefins with defined physical properties, a catalyst for olefin metathesis comprising said MgO and a process for olefin metathesis using said catalyst.
Claims20
A catalyst for conversion of olefins comprising a mixture of:
- at least one first catalyst component comprising a metathesis catalyst, and
- at least one second catalyst component comprising a magnesium oxide (MgO) as a catalyst for double bond isomerisation, wherein the magnesium oxide (MgO) comprises:
- a specific surface area BET of 105 to 300 m2/g;
- a crystallite size of 5 to 25 nm;
- a total pore volume of 0.1 to 0.5 cm3/g;
- and
- a maximum of pore size distribution of 5 to 15 nm,
- wherein the magnesium oxide (MgO) is free of a structure stabilizing agent;
- and
- wherein the magnesium oxide is obtained from magnesium carbonate hydroxide of the formula (MgCO3)4.Mg(OH)2.5H2O by calcination in the presence of an oxygen-containing gas.
7 more elements
A process for obtaining an olefin, in particular propene, comprising the steps of:
- feeding at least two olefins as starting material, to a reactor, in particular a fixed-bed reactor, comprising at least one catalyst for conversion of olefins comprising a mixture of:
- at least one first catalyst component comprising a metathesis catalyst;
- and
- at least one second catalyst component comprising a magnesium oxide (MgO) as a catalyst for double bond isomerisation, wherein the magnesium oxide (MgO) comprises:
- a specific surface area BET of 105 to 300 m2/g;
- a crystallite size of 5 to 25 nm;
- a total pore volume of 0.1 to 0.5 cm3/g;
- and
- a maximum of pore size distribution of 5 to 15 nm,
- wherein the magnesium oxide (MgO) is free of a structure stabilizing agent;
- and
- wherein the magnesium oxide is obtained from magnesium carbonate hydroxide of the formula (MgCO3)4.Mg(OH)2.5H2O by calcination in the presence of an oxygen-containing gas;
- and,
- converting the at least two olefin gases at a pressure between 1 to 50 bar and a temperature between 100 and 600° C. to obtain at least one new olefin.
11 more elements
Dependencies are inferred from the claim text.