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Hydrotreating catalyst of containing molecular sieve, and preparation method

A technology of hydroprocessing and catalyst, which is applied in the fields of refined hydrocarbon oil and petroleum industry, etc. It can solve the problems of low yield of target product oil, poor cracking selectivity, etc., and achieve high desulfurization, high aromatic saturation and selective cycloalkane ring opening active effect

Active Publication Date: 2006-12-06
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the ubiquitous problems of this type of catalyst containing Ni-Mo or Ni-W provided by the prior art are that the cracking selectivity is poor and the yield of the target product oil is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0032] 250 grams of pseudo-boehmite (product of Changling Oil Refinery Chang Catalyst Factory, dry basis is 72%) is mixed with 27 grams of USY type molecular sieve (product of Changling Oil Refinery Catalyst Factory, unit cell constant 24.55 angstroms, dry 74% by weight) , extruded into a trefoil strip with a circumscribed circle diameter of 1.5 mm, the wet strip was dried at 120°C for 4 hours, and roasted at 600°C for 4 hours to obtain carrier S1. The content of alumina in S1 was 90%, and the content of USY molecular sieve was 10%.

[0033] Take 100 grams of S1 carrier and impregnate it with 83 ml of an aqueous solution containing 11.3 grams of ammonium paramolybdate for 2 hours, roast at 400°C for 4 hours and cool down to room temperature, then take 80 grams of it and use it with 22.9 grams of ammonium metatungstate and 5.9 grams of nickel nitrate 68 ml of aqueous solution was impregnated again for 2 hours, and then dried at 200° C. for 6 hours to obtain catalyst C1. The co...

example 2

[0035] Carrier S2 150 g was prepared according to Example 1.

[0036] Take 100 grams of S2 carrier and impregnate it with 83 ml of an aqueous solution containing 8.3 grams of ammonium paramolybdate for 2 hours, roast at 400°C for 4 hours and cool down to room temperature, then take 80 grams of it and use it with 25.7 grams of ammonium metatungstate and 6.0 grams of nickel nitrate 68 ml of aqueous solution was impregnated again for 2 hours, and then dried at 200° C. for 6 hours to obtain catalyst C2. The composition of catalyst C2 after calcination is shown in Table 1.

example 3

[0038] Carrier S3 150 g was prepared according to Example 1.

[0039] Take 100 grams of S3 carrier and impregnate it with 83 ml of an aqueous solution containing 7.1 grams of ammonium paramolybdate for 2 hours, roast at 400°C for 4 hours and cool down to room temperature, then take 80 grams of it and use it with 26.8 grams of ammonium metatungstate and 6.1 grams of nickel nitrate 68 ml of aqueous solution was impregnated again for 2 hours, and then dried at 200° C. for 6 hours to obtain catalyst C3. The composition of catalyst C3 after calcination is shown in Table 1.

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Abstract

This invention provides a hydrogenation catalyst containing molecular sieve, which is composed of nickel oxide 1-10 wt. %, molybdena oxide and tungsten oxide 10-50 wt. %, and carrier. The catalyst is prepared by introducing nickel, molybdena and tungsten into the carrier containing molecular sieve. The catalyst has such advantages as high desulfurization and denitrification activity, and high ring-opening activity.

Description

technical field [0001] The invention relates to a hydrogenation catalyst and a preparation method thereof, more specifically to a molecular sieve-containing hydrogenation treatment catalyst and a preparation method thereof. Background technique [0002] As the market demand for diesel oil increases year by year, producing more diesel oil has become a direction for the development of the catalytic cracking process. FCC diesel is characterized by high content of sulfur, nitrogen and aromatics, low cetane number, poor storage stability, and large emissions of toxic gases during combustion. In the presence of a hydrotreating catalyst, the hydrotreating of diesel oil can remove sulfur, nitrogen and reduce the content of aromatics, so that the quality of diesel oil can be improved. [0003] Hydrotreating catalysts generally contain a carrier and at least one Group VIB and at least one Group VIII metal component supported on the carrier. Some catalysts al...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G45/12
Inventor 辛靖龙湘云聂红王奎刘学芬石亚华李大东熊震霖张乐朱立
Owner CHINA PETROLEUM & CHEM CORP
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