Coal tar hydrodenitrification catalyst and preparation method thereof

A hydrogenation denitrification and catalyst technology, applied in the field of coal tar, can solve the problems of strong interaction force, difficult sulfide of active components, affecting catalyst activity, etc., and achieve the effect of improving activity

Inactive Publication Date: 2018-11-30
宁波敬业控股集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the strong interaction between the active component and the support, the active component is difficult to completely transform into sulfide, which affects the activity of the catalyst and needs to be improved.

Method used

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  • Coal tar hydrodenitrification catalyst and preparation method thereof

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Comparison scheme
Effect test

Embodiment 1

[0034] A coal tar hydrogenation denitrification catalyst, including active components, additives and carriers, the active components include the following components in parts by weight: 15 parts of tungsten trisulfide, 8 parts of nickel oxide and 4 parts of molybdenum trisulfide; The components include the following parts by weight: calculated as simple substances, 1 part of phosphorus and 4 parts of fluorine; the carrier includes the following components by weight: calculated on a dry basis of the carrier, 47 parts of alumina, 10 parts of Hβ molecular sieve, and 15 parts of titanium dioxide .

Embodiment 2

[0036] A coal tar hydrogenation denitrogenation catalyst, including active components, additives and carriers, the active components include the following components in parts by weight: 14 parts of tungsten trisulfide, 5 parts of nickel oxide and 3 parts of molybdenum trisulfide; The components include the following parts by weight: calculated as simple substances, 2 parts of phosphorus and 3 parts of fluorine; the carrier includes the following components by weight: calculated on a dry basis of the carrier, 52 parts of alumina, 5 parts of Hβ molecular sieve, and 10 parts of titanium dioxide .

Embodiment 3

[0038] A coal tar hydrogenation denitrification catalyst, including active components, additives and carriers, the active components include the following components in parts by weight: 13 parts of tungsten trisulfide, 6 parts of nickel oxide and 3 parts of molybdenum trisulfide; The components include the following parts by weight: calculated as simple substances, 1 part of phosphorus and 2 parts of fluorine; the carrier includes the following components by weight: calculated on a dry basis of the carrier, 55 parts of alumina, 6 parts of Hβ molecular sieve, and 12 parts of titanium dioxide .

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Abstract

The invention discloses a coal tar hydrodenitrification catalyst and a preparation method thereof. The coal tar hydrodenitrification catalyst includes active ingredients, an auxiliary and a carrier. The active ingredients include the following components in parts by weight: 13-15 parts of tungsten trisulfide, 5-8 parts of nickel oxide and 3-4 parts of molybdenum trisulfide; the auxiliary includesthe following components in parts by weight: in terms of elementary substance, 1-2 parts of phosphorus, and 1-4 parts of fluorine; and the carrier includes the following components in parts by weight:in terms of the dry basis of the carrier, 45-55 parts of alumina, 5-10 parts of H[beta] zeolite and 10-15 parts of titanium dioxide. The beneficial effects of the present invention are that the catalyst has excellent activity for hydrodenitrification of coal tar.

Description

technical field [0001] The invention relates to coal tar, in particular to a coal tar hydrogenation denitrogenation catalyst and a preparation method thereof. Background technique [0002] Coal tar is a by-product of coal coking, carbonization and gasification processes. Coal tar contains a large amount of aromatic and other cyclic compounds, which is difficult to fully burn. Coal tar has high carbon content and low hydrogen content. Incomplete combustion is easy to generate carbon black and cause a lot of smoke and dust. At the same time, the content of sulfur and nitrogen in coal tar is relatively high, and a large amount of SO is emitted during combustion. x and NO x , causing serious environmental pollution. If coal tar is made into clean fuel oil, the utilization value of coal tar can be improved and environmental pollution can be reduced. Among the technologies for making coal tar into clean fuel oil, hydrogenation technology has incomparable advantages over other ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/78C10G45/12
CPCB01J29/7815C10G45/12C10G2300/1037C10G2300/202
Inventor 戴天珍
Owner 宁波敬业控股集团有限公司
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