Composite type coal tar hydrogenation catalyst and preparation method thereof

A hydrogenation catalyst, coal tar technology, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc. The problems of high catalytic activity and high cost of ore or iron sulfide ore can achieve excellent hydrogenation activity, improve catalyst activity, and high light oil yield.

Active Publication Date: 2013-01-09
BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by this invention is that the coal tar catalyst in the prior art sprays the water-soluble salt of molybdenum, nickel, cobalt, and tungsten metal onto the surface of iron oxide ore or iron sulfide ore, so that the salts of the above-mentioned metals are easily Cover the active centers on the surface of iron o

Method used

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  • Composite type coal tar hydrogenation catalyst and preparation method thereof
  • Composite type coal tar hydrogenation catalyst and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0030] 131g of coal gangue was crushed into particles with a particle size of 300μm, and 2L of ammonium molybdate solution with a concentration of 0.5mol / L was evenly sprayed on the coal gangue particles. The coal gangue particles sprayed with ammonium molybdate solution were freeze-dried for 10 hours;

[0031] The coal gangue particles treated above are taken out from the negative pressure environment, and aged at normal temperature and pressure for 3 hours to obtain the coal tar hydrogenation catalyst of the present invention.

[0032] In the above catalyst, the content of the active component is 60wt%, and the content of the gangue carrier is 40wt%.

Embodiment 2

[0034] Crush 20g of coal gangue into particles with a particle size of 200μm, spray 2L of nickel nitrate solution with a concentration of 0.5mol / L evenly on the coal gangue particles, and spray them against each other at 0°C and a pressure of -0.3MPa Coal gangue particles drenched with nickel nitrate solution were freeze-dried for 8 hours;

[0035] The coal gangue particles treated above are taken out from the negative pressure environment, aged at normal temperature and pressure for 1.5 hours, and the coal tar hydrogenation catalyst of the present invention is obtained.

[0036] In the above catalyst, the content of the active component is 90wt%, and the content of the gangue carrier is 10wt%.

Embodiment 3

[0038] 63g of coal gangue was crushed into particles with a particle size of 150 μm, and 2 L of cobalt oxalate solution with a concentration of 0.5 mol / L was evenly sprayed on the coal gangue particles. Coal gangue particles sprayed with cobalt oxalate solution were freeze-dried for 5 hours;

[0039] The coal gangue particles treated above are taken out from the negative pressure environment, aged at normal temperature and pressure for 1 hour, and the coal tar hydrogenation catalyst of the present invention is obtained.

[0040] In the above catalyst, the content of the active component is 70wt%, and the content of the gangue carrier is 30wt%.

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Abstract

The invention relates to a coal tar hydrogenation catalyst and a preparation method thereof. The catalyst consists of an active ingredient and a carrier. The active ingredient is one or more of molybdenum, nickel, cobalt or tungsten water-soluble salt. The carrier is coal gangue. The content of the active ingredient is 60-90 wt%, and the content of the carrier is 10-40 wt%. The catalysis to forming load of the active ingredient on the coal gangue carrier is effectively achieved through a negative pressure freeze-drying forming process, the coal tar hydrogenation catalyst is used in a coal tar suspended bed hydrocracking technological process and has good hydrogenation activity, the production rate of light oil reaches to more than 96%, the coal gangue is cheap and easily obtained and can be recycled and used repeatedly, and the preparing and using cost of the catalyst can be reduced remarkably.

Description

technical field [0001] The invention relates to a hydrogenation catalyst and a preparation method thereof, in particular to a hydrogenation catalyst for refining coal tar and a preparation method thereof, belonging to the technical field of chemical industry. Background technique [0002] Coal tar, also known as coal paste, is an important by-product of coal pyrolysis and carbonization process. It has tens of thousands of components, mainly containing aromatics such as benzene, toluene, xylene, naphthalene, anthracene, and aromatic oxygenates Phenolic compounds such as phenol), nitrogen-containing, sulfur-containing heterocyclic compounds and many other organic compounds. [0003] In the processing and utilization of coal tar, coal tar is usually fractionated into light and heavy fractions first, that is, it is divided into several narrow fractions such as light oil, phenol oil, naphthalene oil, wash oil, anthracene oil and tar by distillation. asphalt. Then, the raw mater...

Claims

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Application Information

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IPC IPC(8): B01J23/28B01J23/755B01J23/75B01J23/30B01J23/883B01J23/888C10G47/02C10G45/08
Inventor 井口宪二坂脇弘二韩珏
Owner BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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