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Transition metal molybdotungstate material

A transition metal and molybdenum tungstate technology, applied in metal/metal oxide/metal hydroxide catalysts, molybdenum compounds, tungsten compounds, etc., can solve problems such as doubts about the quality of material structure evaluation

Active Publication Date: 2021-01-22
UOP LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Pezerat classified the observed different phases as Φc, Φx, or Φy, and determined the crystal structures of Φx and Φy, however, due to the combination of small crystallite size, limited crystallographic capabilities, and the complex nature of the substance, it is proposed that Doubts about the quality of the structural assessment of the substance

Method used

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  • Transition metal molybdotungstate material
  • Transition metal molybdotungstate material
  • Transition metal molybdotungstate material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Nickel nitrate hexahydrate (29.1 g, 0.1 mole of Ni), molybdenum trioxide (2.88 g, 0.02 mole of Mo), ammonium metatungstate hydrate (25.3 g, 0.1 mole of W) and urea (7.5 g, 0.125 mol) in DI H 2 O (5 g) was mixed well and heat treated at 65°C in a sealed PTFE bottle for 24 hours. The resulting mixture was then transferred to a ceramic crucible and heat-treated at 100 °C for an additional 16 hours. The resulting product was analyzed by X-ray powder diffraction, and the X-ray powder diffraction pattern is shown in the accompanying drawing.

Embodiment 2

[0060] Nickel nitrate hexahydrate (29 g, 0.1 moles of Ni), ammonium heptamolybdate (7.06 g, 0.04 moles of Mo) and ammonium metatungstate hydrate (17.71 g, 0.07 moles of W) and ammonium heptamolybdate tetrahydrate (1.76 g, 0.01 mole of Mo) and ammonium carbonate (8.3 g, 0.17 mole of NH 3 ) were mixed together thoroughly and added to a PTFE-lined stainless steel digestion vessel. The mixture was kept at 65°C for 7 days. Thereafter, the green slurry was transferred to a ceramic dish and further heated at 100° C. for a period of 48 hours with intermittent mixing. The resulting product was analyzed by X-ray powder diffraction, and the X-ray powder diffraction pattern is shown in the accompanying drawing.

Embodiment 3

[0062] Nickel nitrate hexahydrate (29.75 g, 0.1 mole of Ni), ammonium heptamolybdate (3.52 g, 0.02 mole of Mo), and ammonium metatungstate hydrate (17.71 g, 0.07 mole of W) and urea (10 g, 0.167 Mole) and DI H 2 O (5 g, 0.278 mol) was mixed together in a sealed PTFE bottle. The mixture was heat treated at 65°C with batch mixing for 30 hours, then transferred to a ceramic dish and heat treated at 200°C. The resulting product was analyzed by X-ray powder diffraction, and the X-ray powder diffraction pattern is shown in the accompanying drawing.

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Abstract

A hydroprocessing catalyst or catalyst precursor has been developed. The catalyst is a transition metal molybdotungstate material or metal sulfides derived therefrom. The hydroprocessing using the transition metal molybdotungstate material may include hydrodenitrification, hydrodesulfurization, hydrodemetallation, hydrodesilication, hydrodearomatization, hydroisomerization, hydrotreating, hydrofining, and hydrocracking.

Description

technical field [0001] The present invention relates to a new catalyst such as a hydrotreating catalyst. More specifically, the present invention relates to a novel transition metal molybdenum tungstate material and its use as a hydrotreating catalyst. Hydrotreating may include hydrodenitrogenation, hydrodesulfurization, hydrodemetallization, hydrodesilication, hydrodearomatization, hydroisomerization, hydrotreating, hydrofinishing, and hydrocracking. Background technique [0002] To meet the increasing demand for petroleum products, there is a greater utilization of sour crude oils, which, when combined with stricter environmental regulations regarding nitrogen and sulfur concentrations in fuels, leads to exacerbated refining problems. The purpose during the refining hydrotreating step is to remove sulfur-containing (hydrodesulfurization-HDS) and nitrogen-containing (hydrodenitrogenation-HDN) compounds from the fuel feedstock, and this purpose is achieved by converting org...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G41/00C01G39/00B01J23/30B01J23/85C01G1/00C10G45/08C10G45/60
CPCC10G45/08C01G53/006C01P2002/72C01P2002/74B01J23/8885B01J23/22B01J23/30B01J23/8898B01J37/0009B01J37/20B01J37/10B01J37/088B01J2523/00B01J35/30B01J2523/68B01J2523/69B01J2523/847B01J2523/27B01J27/24B01J21/08B01J21/12B01J21/04B01J27/047B01J27/0515B01J27/051B01J27/049B01J27/04B01J27/043B01J23/8877B01J23/8873B01J35/19
Inventor 斯图尔特·R·米勒苏珊·C·科斯特
Owner UOP LLC
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