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Aviation kerosene production method

A technology of jet fuel and kerosene, which is applied in the field of jet fuel production, can solve problems such as poor quality of jet fuel, achieve better quality and improve quality

Active Publication Date: 2016-05-04
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the defects of the prior art, especially to overcome the problem of poor quality of aviation coal caused by unqualified aviation coal smoke point and aromatics content in the prior art, and to provide a hydrocracking process for producing high-quality aviation coal , the method of the present invention is simple and convenient, especially suitable for medium pressure hydrocracking process

Method used

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  • Aviation kerosene production method

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Effect test

Embodiment 1

[0068] This embodiment adopts figure 1 The process shown proceeds, specifically:

[0069] The raw oil enters the raw oil storage tank 1 through the pipeline 10, and the new hydrogen is mixed with the raw oil through the pipeline 11 and the gas compressor 2 in turn, and then introduced into the heating furnace 3 through the pipeline 12, and then enters the hydrofining reaction zone 4 through the pipeline 13. The mixed oil hydrogen enters the hydrocracking reaction zone 5 from the pipeline 14 . The raw oil and hydrogen react in the hydrorefining reaction zone and the hydrocracking reaction zone in turn. After heat exchange and cooling, the reaction effluent is introduced into the high-pressure separator 6 through the pipeline 15 for gas-liquid separation. The hydrogen-rich gas at the top of the high-pressure separator The flow enters the circulating hydrogen compressor 7 from the pipeline 16, and after being pressurized by the circulating hydrogen compressor, it is divided into...

Embodiment 2

[0079] The present embodiment adopts the same process as embodiment 1 to carry out, the difference is:

[0080] The reaction conditions adopted in this embodiment are respectively as follows:

[0081] Hydrofining reaction zone: the reaction temperature is 375°C; the reaction pressure is 8MPa; the volume ratio of hydrogen to oil is 800:1; the volume space velocity is 0.5h -1 The top bed is equipped with hydrogenation protection catalyst RG-1 (accounting for 15% of the total amount of catalyst loaded in the hydrofinishing reaction zone), and the rest is equipped with hydrofinishing catalyst RN-32V;

[0082] Hydrocracking reaction zone: the reaction temperature is 378°C; the reaction pressure is 8MPa; the volume ratio of hydrogen to oil is 1200:1; the volume space velocity is 1.0h -1 Divide into three catalyst beds, the first two catalyst beds are filled with the hydrocracking catalyst RHC-3 containing Y molecular sieve, the third bed is filled with the rear refining catalyst RN...

Embodiment 3

[0089] The present embodiment adopts the same process as embodiment 1 to carry out, the difference is:

[0090] The reaction conditions adopted in this embodiment are respectively as follows:

[0091] Hydrofining reaction zone: the reaction temperature is 375°C; the reaction pressure is 10MPa; the volume ratio of hydrogen to oil is 800:1; the volume space velocity is 0.8h -1 The top bed is equipped with hydrogenation protection catalyst RG-1 (accounting for 15% of the total amount of catalyst loaded in the hydrofinishing reaction zone), and the rest is equipped with hydrofinishing catalyst RN-32V;

[0092] Hydrocracking reaction zone: the reaction temperature is 376°C; the reaction pressure is 10MPa; the volume ratio of hydrogen to oil is 1200:1; the volume space velocity is 1.6h -1 Divide into three catalyst beds, the first two catalyst beds are filled with the hydrocracking catalyst RHC-3 containing Y molecular sieve, the third bed is filled with the rear refining catalyst ...

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Abstract

The present invention discloses an aviation kerosene production method, which comprises that: (1) in the presence of hydrogen, raw material oil sequentially passes through a hydrorefining zone and a hydrocracking zone so as to be subjected to reactions to obtain a hydrocracking effluent; (2) the hydrocracked effluent is sequentially subjected to gas-liquid separation and fractionation to obtain a light naphtha distillate, a heavy naphtha distillate, a diesel oil distillate, a tail oil distillate and a kerosene distillate; and (3) at least the partial kerosene distillate is introduced into the post-refining catalyst bed layer of the hydrocracking zone so as to be used for recycling, wherein the distillation range of the kerosene distillate is 145-275 DEG C. According to the present invention, the method is simple, the high-quality aviation kerosene can be produced, and the method is especially suitable for the medium pressure hydrocracking process.

Description

technical field [0001] The invention relates to a method for producing jet fuel. Background technique [0002] With the deterioration of crude oil quality year by year and the increasingly stringent environmental protection requirements worldwide, the hydrocracking process, as one of the main means of crude oil secondary processing and heavy oil lightening, has a flexible production plan due to its strong adaptability to raw materials , with high liquid product yield and good product quality, it is playing an increasingly important role in the deep processing of sulfur-containing and high-sulfur crude oil to produce clean fuels, and its application range is becoming wider and wider. [0003] In recent years, with the rapid development of the aviation industry, the demand for aviation kerosene continues to increase, and generally speaking, the fraction of aviation kerosene mainly comes from distillation units and hydrocracking units. For distillation units, sweetening of mer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G67/02
Inventor 陈元君蒋东红赵阳赵广乐董松涛王子文胡志海
Owner CHINA PETROLEUM & CHEM CORP
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