Production method for jet fuel

A jet fuel and production method technology, applied to chemical instruments and methods, hydrocarbon oil treatment, molecular sieve catalysts, etc., can solve problems such as increasing process complexity, achieve low sulfur and nitrogen content, high hydrogen consumption, and prolong life Effect

Active Publication Date: 2016-03-30
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the method disclosed in CN102304387B, when the feed is hydrotreated, it is successively carried out in th

Method used

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  • Production method for jet fuel
  • Production method for jet fuel
  • Production method for jet fuel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0087] The feed oil A used in this example is catalytically cracked diesel oil, the properties of which are listed in Table 1.

[0088] This embodiment is carried out in two fixed-bed reactors, the first fixed-bed reactor is filled with a hydrofinishing catalyst, and the second fixed-bed reactor is filled with a hydrocracking catalyst and a supplementary hydrofinishing catalyst, wherein, The loading volume ratio of hydrofinishing catalyst, hydrocracking catalyst and make-up hydrofinishing catalyst is 40:60:10.

[0089] The hydrofinishing catalyst and the make-up hydrofinishing catalyst are the same, and both are prepared by the following method.

[0090] With 3000 grams of SilicaGel955 commercial silica gel (U.S. DavisonChemical company product, SiO 2 The content is 99.8% by weight) and 75 grams of scallop powder are evenly mixed, and then mixed with 84 milliliters of nitric acid (concentration 65-68 weight percent, analytically pure, product of Shantou Xilong Chemical Factor...

Embodiment 2

[0099] Jet fuel was produced in the same manner as in Example 1, except that the hydrofinishing catalyst used and the make-up hydrofinishing catalyst used were prepared as follows:

[0100] With 200 ml of dilute ammonia solution containing 21.9 g of ammonium paramolybdate (NH 3 The concentration is 10% by weight) to impregnate 200 grams of silica carrier S for 2 hours, then dry at 120° C. for 4 hours, and then bake at 460° C. for 4 hours to obtain a molybdenum-containing carrier loaded with molybdenum oxide. Then, the molybdenum-containing carrier was impregnated with 156 ml of an aqueous solution containing 13.3 g of cobalt nitrate and 4.4 g of nickel nitrate for 2 hours, followed by drying at 120° C. for 4 hours, and then calcining at 470° C. for 4 hours to obtain the hydrorefining catalyst. The composition of the catalyst was determined by X-ray fluorescence spectrometry, wherein, MoO 3The content of NiO is 8.0% by weight, the content of NiO is 0.6% by weight, and the cont...

Embodiment 3

[0103] Adopt the same method as embodiment 1 to produce jet fuel, the difference is that the hydrocracking catalyst used is prepared by the following method:

[0104] With 185.7 grams of pseudo-boehmite (the product of Changling Branch of China Petrochemical Corporation, the dry basis is 70% by weight) and 93.3 grams of USY zeolite (the product of Changling Branch of China Petrochemical Corporation, the unit cell constant is 24.50 angstroms, crystallinity is 88%, sodium oxide content is 0.8% by weight, and dry basis is 75% by weight) mixed, extruded into a trilobal bar with a circumscribed circle diameter of 1.6 mm, and the wet bar is dried at 120 ° C for 3 hours, then Baking was carried out at 450° C. for 4 hours to obtain a carrier DZ1.

[0105] With 88 ml of ammonium metatungstate (in WO 3 meter, the concentration is 422 g / L), ammonium molybdate (as MoO 3 24.3 g / L) and nickel nitrate (69.8 g / L in terms of NiO) mixed aqueous solution impregnated 100 g of carrier DZ1 for 1 ...

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Abstract

A disclosed production method for a jet fuel comprises (1) under a hydrofining reaction condition, contacting raw oil and hydrogen with a hydrofining catalyst; (2) contacting an effluent obtained in the step (1) with a hydrocracking catalyst under a hydrocracking reaction condition; and (3) separating the jet fuel from the effluent obtained in the step (2), wherein the aromatic hydrocarbon content in the raw oil is 40 wt% or more. In the step (1), the bicyclic aromatic hydrocarbon saturation rate in the raw oil is 45-85 under the effect of the hydrofining reaction condition. In the step (2), the monocyclic aromatic hydrocarbon saturation rate in the liquid fed material in the step (2) is 60-95% under the effect of the hydrocracking reaction condition. The method also can help to produce a high-density jet fuel according with GJB1603 6# jet fuel standard by employing catalytic cracking diesel oil as a raw material, and also high-quality diesel oil is concurrently produced.

Description

technical field [0001] The present invention relates to a method of producing jet fuel, in particular to a method of treating hydrocarbon oil in the presence of hydrogen to produce jet fuel. Background technique [0002] High-density jet fuel, also known as high-density jet fuel, is a type of jet fuel with high density (generally 0.835g / cm 3 Above), high volume calorific value (generally 35.8MJ / m 3 above) jet fuel. Compared with ordinary jet fuel (the density is generally 0.77-0.81g / cm 3 ) compared with high-density jet fuel can increase the calorific value per unit volume of the fuel. When the volume of the fuel tank is constant, it can effectively increase the energy of the fuel carried by the fuel tank, which is an important guarantee for the high-speed and long-range flight of aerospace vehicles. For example: the density is 845kg / m 3 (Volume calorific value is about 36×10 3 MJ / m 3 ) fuel with a density of 780kg / m 3 (Volume calorific value is about 33×10 3 MJ / m 3...

Claims

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Application Information

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IPC IPC(8): C10G65/12C10G45/04C10G47/20B01J29/16
Inventor 任亮张毓莹蒋东红胡志海梁家林龙湘云杨平
Owner CHINA PETROLEUM & CHEM CORP
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