Aromatic saturated hydrogenation catalyst and its preparing process

A hydrogenation catalyst, a technology for aromatic hydrocarbons, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc. application and other issues, to achieve the effect of high catalytic activity, large industrial application significance, and simple preparation method

Active Publication Date: 2008-01-09
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among the commonly used oil hydrotreating catalysts, traditional sulfide catalysts are difficult to achieve deep aromatic saturation due to thermodynamic limitatio

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Calcined powder γ-Al at 550℃ 2 o 3 Carrier 4h. Weigh 6.0g of roasted γ-Al 2 o 3 Powder carrier, by the weight percent composition of Ni in the catalyst is 6.5wt%, and the weight percent composition of Mo is 15.8wt%, nickel acetate (Ni(CH 3 COO) 2 4H 2 O), ammonium molybdate ((NH 4 ) 6 Mo 7 o 24 ·6H 2 The molar ratio of O) and HMT is 14:3:27. Weigh nickel acetate, ammonium molybdate and HMT, and dissolve nickel acetate, ammonium molybdate and HM in 13% ammonia solution in turn to prepare a clear impregnating solution. 2 o 3 The carrier was added into the impregnating solution, stirred and impregnated at room temperature for 3 hours, filtered, fully dried, and then vacuum-dried at 60°C and 120°C for 3 hours each. The precursor is pressed into tablets, crushed and sieved to 20 mesh to 40 mesh.

[0016] Measure 2ml of the above precursor, place it in a quartz tube reactor, first raise it from room temperature to 650°C at a rate of 10°C / min in an Ar flow with a...

Embodiment 2

[0019] Change the molar ratio of nickel acetate, ammonium molybdate and HMT into 14:3:22.8 in Example 1, and the others are the same as Example 1. The experimental results are shown in Table 1.

Embodiment 3

[0021] Change the molar ratio of nickel acetate, ammonium molybdate and HMT into 14:3:20 in Example 1, and the others are the same as Example 1. The experimental results are shown in Table 1.

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Abstract

The present invention relates to one kind of arene saturation hydrogenating metal nitride catalyst, which consists of gamma-Al2O3 carrier and supported bimetal Ni-Mo nitride. Of the active components, Ni accounts for 2.5-10 wt%, Mo accounts for 6-25 wt%, and Ni and Mo co-exist as Ni2Mo3N, Ni, Mo2N and small amount of oxides. The catalyst is prepared through the following steps: roasting gamma-Al2O3 powder at 500-550 deg.c for 4-5 hr; dissolving nickel acetate, ammonium molybdenum and HMT in the molar ratio of 14 to 3 to 17.2-27 in 13 % ammonia water solution to form immersion solution; soaking the gamma-Al2O3 powder in the solution via stirring for 2-4 hr, filtering, air drying, vacuum drying at 60-100 deg.c for 5-8 hr, tabletting and sieving; roasting first in Ar flow to 650-680 deg.c for 2 hr and then in H2 flow for 2 hr, and cooling to room temperature in H2; and final deactivating in N2 containing O2 in 1 % for 4 hr. It has high catalytic activity and other features.

Description

technical field [0001] The invention relates to a metal nitride catalyst used in the saturated hydrogenation of aromatic hydrocarbons, in particular to a supported double transition metal nitride catalyst and a preparation method thereof. Background technique [0002] Transition metal nitrides are a class of compounds formed by nitrogen atoms interstitially integrated into transition metal lattices. They have unique physical and chemical properties, especially because of their catalytic activity similar to noble metals. Recent studies have shown that the introduction of the second metal can greatly improve the catalytic activity of nitrides, especially the bimetallic nitrides obtained after the introduction of Ni, have excellent performance in hydrodenitrogenation, hydrodesulfurization and saturated hydrogenation of aromatics , showing good application prospects in oil hydrotreating. Usually, bimetallic nitride catalysts are prepared by temperature-programmed nitriding of o...

Claims

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Application Information

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IPC IPC(8): B01J27/24B01J23/755B01J21/04C10G45/08
Inventor 马艳丽张志华王化民王路海刘玉鹏李伟张明慧陶克毅张文成曹建亮刘文勇王智强郭金涛于文静冯秀芳王甫村丛丽茹于丽
Owner PETROCHINA CO LTD
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