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Liquid-phase hydrogenation refining method of aviation kerosene

A technology of aviation kerosene and refining method, which is applied in the fields of hydrogenation treatment process, hydrocarbon oil treatment, petroleum industry, etc., and can solve the adverse effects of high volume of hydrogen oil, increase of investment cost of hydrogenation reaction device, operation energy consumption, and production efficiency, etc. problems, to achieve the effect of simplifying the process flow route, good hydrofining effect and reducing investment cost

Active Publication Date: 2014-03-26
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of CN1163573C is that the volume of hydrogen oil is relatively high, and a large amount of circulating hydrogen and its corresponding circulation system are required. On the one hand, the volume of the hydrogenation reaction unit is relatively large, and on the other hand, the investment cost of the hydrogenation reaction unit is also increased. and operating energy consumption
[0008] Although the liquid-phase hydrogenation methods disclosed in US6428686, CN101280217A and CN101787305A all eliminate the demand for circulating hydrogen, there are still the following disadvantages: it is necessary to use diluent or circulating oil to increase the carrying capacity of hydrogen in the raw material oil, which reduces the hydrogenation process. The processing capacity of fresh raw oil in the hydrogen refining unit has an adverse effect on production efficiency

Method used

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  • Liquid-phase hydrogenation refining method of aviation kerosene
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  • Liquid-phase hydrogenation refining method of aviation kerosene

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] use Figure 5 In the method shown, hydrogen is injected into aviation kerosene through a mixing device, and the hydrogen-carrying aviation kerosene raw material oil is sent into a tubular fixed-bed reactor (with an inner diameter of 65 mm, and a catalyst bed with a catalyst loading height of diameter ratio of 25), under the conditions shown in Table 1, contact with a catalyst with catalytic hydrogenation (commercially purchased from Sinopec Fushun Petrochemical Research Institute, brand RSS-2), the raw oil and the obtained hydrogenation product The properties are shown in Table 1.

[0069] Among them, in the liquid channel of the mixing device, the temperature is 260°C and the pressure is 2.0 MPa; relative to 100 parts by weight of raw material oil, the amount of injected hydrogen is 0.025 parts by weight (the chemical hydrogen consumption of 100 parts by weight of raw material oil is 0.02 parts by weight, under the hydrofinishing conditions shown in Table 1, the satur...

Embodiment 2

[0078] Adopt the method identical with embodiment 1 to carry out hydrogenation refining to aviation kerosene, difference is:

[0079] The mixing device includes a membrane tube (commercially purchased from Beijing Zhongtianyuan Environmental Engineering Co., Ltd., with an outer diameter of 25.4 mm, the average pore diameter of the through holes on the substrate is 100 μm, and the average pore diameter of the through holes on the porous membrane is 250 nm) and with the pipeline A housing (with an inner diameter of 40mm) for use; the porous membrane is located on the outer wall of the membrane tube; the cross-section of the membrane tube is as follows Figure 4 As shown, there are 7 liquid channels evenly distributed, and the inner diameter of each liquid channel is 6mm; the space formed by the outer wall of the membrane tube and the inner wall of the housing is a gas channel;

[0080] In the liquid channel of the mixing device, the temperature is 260°C and the pressure is 2.0MP...

Embodiment 3

[0084] Adopt the method identical with embodiment 1 to carry out hydrogenation refining to aviation kerosene, difference is:

[0085] The mixing device includes a membrane tube (commercially purchased from Beijing Zhongtianyuan Environmental Engineering Co., Ltd., with an outer diameter of 25.4 mm, the average pore diameter of the through holes on the substrate is 100 μm, and the average pore diameter of the through holes on the porous membrane is 500 nm) and the A shell (with an inner diameter of 40mm) used in conjunction with the pipe; the porous membrane is located on the inner wall of the membrane pipe, and the cross-section of the pipe is as follows: Figure 4 As shown, there are 19 liquid channels evenly distributed, and the inner diameter of each liquid channel is 3.3mm; the space formed by the outer wall of the membrane tube and the inner wall of the housing is a gas channel;

[0086] In the liquid channel of the mixing device, the temperature is 280°C and the pressure...

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Abstract

The invention provides a liquid-phase hydrogenation refining method of aviation kerosene. The method comprises the following steps: injecting hydrogen into the aviation kerosene, and enabling hydrogen to come into contact with a catalyst with a catalytic hydrogenation effect in a hydrogenation reaction under liquid-phase hydrogenation refining conditions, wherein hydrogen is injected into the aviation kerosene via through holes with nano-sized average pore diameter. According to the hydrogenation refining method of the aviation kerosene, provided by the invention, the hydrogen is injected into the aviation kerosene via the through holes with the nano-sized average pore diameter, so that the hydrogen can be highly dispersed and rapidly dissolved in the aviation kerosene without a thinner or circulating oil. Furthermore, by adopting the method provided by the invention to perform hydrogenation refining on the aviation kerosene, the good hydrogenation refining effect can be obtained, and the content of mercaptan sulfur in obtained refined oil can be less than 10 mu g / g.

Description

technical field [0001] The invention relates to a liquid-phase hydrogenation refining method of aviation kerosene. Background technique [0002] Aviation kerosene is mainly used as fuel for jet engines. Due to its special application site and environment, the performance requirements for aviation kerosene are very strict, not only requiring it to have good low-temperature fluidity, higher net calorific value and density, and higher Fast burning speed and high burning degree, but also good stability (including storage stability and thermal oxidation stability). With the rapid development of social economy and aviation technology, the demand for aviation kerosene is increasing day by day, and the requirements for product quality are also becoming stricter. [0003] There are two main sources of aviation kerosene fractions: straight-run components obtained directly from atmospheric distillation units; and fractions obtained from heavy oil through catalytic cracking and hydrocr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G45/04C10G65/00C10G65/04C10G65/16
Inventor 李华刘建平佘喜春贺晓军李庆华陈庆岭江磊曾志煜刘呈立杨清贫
Owner CHINA PETROLEUM & CHEM CORP
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