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Catalyst and method for the preparation thereof

A technology of catalysts and noble metal catalysts, applied in catalyst activation/preparation, molecular sieve catalysts, chemical instruments and methods, etc.

Inactive Publication Date: 2006-12-27
NESTE OIL OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0025] From the prior art, it can be seen that the cleavage of the carbon-carbon bond in the naphthenic ring is not an easy reaction, and it can easily lead to secondary cracking reactions

Method used

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  • Catalyst and method for the preparation thereof
  • Catalyst and method for the preparation thereof
  • Catalyst and method for the preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] Embodiment 1 (comparative example)

[0071] Preparation of platinum-supported zeolite beta catalyst (Pt-beta-1) by conventional incipient wetness impregnation method

[0072] Platinum-supported zeolite beta catalyst (Pt-beta-1) was prepared by conventional incipient wetness impregnation method in standard metal solution. The platinum precursor is tetraaminoplatinum(II) nitrate [Pt(NH 3 ) 4 (NO 3 ) 2 ]. The catalyst was calcined at 623K in air and then reduced at 573K in hydrogen. The platinum content is 0.5% by weight. The dispersibility measured by the CO adsorption method was 45%.

Embodiment 2

[0073] Embodiment 2 (comparative example)

[0074] Preparation of platinum-supported zeolite beta catalyst (Pt-beta-2) by conventional incipient wetness impregnation method

[0075] Platinum-supported β zeolite catalyst (Pt-β-2) was prepared by conventional incipient wetness impregnation method in standard metal solution. The platinum precursor is tetraaminoplatinum(II) nitrate [Pt(NH 3 ) 4 (NO 3 ) 2 ]. The catalyst was calcined at 623K in air and then reduced at 573K in hydrogen. The platinum content was 4.7% by weight. The dispersibility measured by the CO adsorption method was 24%.

Embodiment 3

[0076] Embodiment 3 (comparative example)

[0077] Preparation of platinum-supported zeolite beta catalyst (Pt-beta-3) by conventional incipient wetness impregnation method

[0078] Platinum-supported β zeolite catalyst (Pt-β-3) was prepared by conventional incipient wetness impregnation method in standard metal solution. The platinum precursor is tetraaminoplatinum(II) nitrate [Pt(NH 3 ) 4 Cl 2 ]. The catalyst was calcined at 623K in air and then reduced at 573K in hydrogen. The platinum content is 0.5% by weight.

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Abstract

The invention relates to a noble metal catalyst for hydrocarbon conversion, to a method for the preparation thereof based on gas phase technique, to the use of the catalyst in reactions such as ring- opening, isomerisation, alkylation, hydrocarbon reforming, dry reforming, hydrogenation and dehydrogenation reactions, and to a method for the manufacture of middle distillates. Said noble metal catalyst comprises a group VIII metal selected from platinum, palladium, ruthenium, rhodium, iridium, or mixtures of combinations thereof on a support, and the catalyst activates carbon monoxide at a temperature below 323 K.

Description

field of invention [0001] The present invention relates to a noble metal catalyst, to a method for preparing said catalyst by gas-phase technology, to said catalyst in various reactions such as ring-opening reaction, isomerization reaction, alkylation reaction, hydrocarbon reforming reaction, Applications in dry reforming reactions, hydrogenation reactions and dehydrogenation reactions, and processes involving the production of middle distillates. Background of the invention [0002] It is well known in the art that noble metal catalysts are active in hydrocarbon reforming reactions, isomerization reactions, isomerization dewaxing reactions, dehydrogenation reactions and hydrogenation reactions. Commercially available noble metal catalysts typically consist of platinum, palladium, ruthenium, rhodium, iridium or mixtures thereof. [0003] Supported noble metal catalysts are traditionally prepared in liquid phase by impregnation techniques or ion exchange techniques. In the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/40B01J37/02B01JB01J21/06B01J21/18B01J23/42B01J29/03B01J29/04B01J29/068B01J29/74B01J35/00C10G45/62C10G45/64
CPCB01J21/185B01J23/42B01J29/043B01J21/06B01J29/7415B01J29/0325B01J37/0238B01J29/068C10G45/64B01J35/002C10G45/62B01J21/18B01J23/40B82Y30/00B01J35/70B01J37/02B01J37/00B01J21/00B01J35/30
Inventor M·蒂塔M·林德布拉德V·涅米
Owner NESTE OIL OY