Conversion catalyst for ethylbenzene containing xylenes and process for converting ethylbenzene containing xylenes by using catalyst
AssigneeToray Industries, Inc.
InventorsKazuyoshi Iwayama, Hiroshi Konta, Masatoshi Watanabe
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Abstract
A catalyst in which X-ray diffraction intensity ratio of the crystal lattice plane spacing d-value of 0.196±0.002 nm to the crystal lattice plane spacing d-value of 0.386±0.008 nm is in a range from 7:100 to 35:100 and a process for making the catalyst to contact with ethylbenzene containing xylenes in the presence of hydrogen.
Claims10
A conversion catalyst for ethylbenzene containing xylenes which includes MFI-type zeolite at 15 to 80 weight parts and alumina at 20 to 85 weight parts, wherein Xray diffraction intensity ratio of the crystal lattice plane spacing d-value of 0.196±0.002 nm assigned to alumina to the crystal lattice plane spacing d-value of 0.386±0.008 nm assigned to MFI-type zeolite is in a range from 7:100 to 35:100,
- wherein a silica/alumina mole ratio of the MFI-type zeolite is less than or equal to 45, and
- wherein the catalyst contains rhenium, silver and at least any one of alkaline-earth metals selected from calcium, strontium or barium at 0.005 to 1.5 weight %, 0 to 5 weight % and 0.05 to 5 weight %, respectively, in relation to the catalyst.
Dependencies are inferred from the claim text.