Jet fuel producing process

A technology for jet fuel and heavy raw materials, which is applied in the treatment of hydrocarbon oil, petroleum industry, hydrotreating process, etc., can solve the problem that the hydrotreating operation unit cannot operate independently, and achieves the effect of expanding the source of raw materials

Inactive Publication Date: 2005-10-26
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the hydrocracking and hydroupgrading operation units cannot operate independently

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0043] Vacuum gas oil A and hydrogen enter the hydrocracking reactor, pass through the catalysts RN-2 and RT-5 in sequence, at a hydrogen partial pressure of 10.0MPa, a temperature of 375 / 372°C (refining / cracking), and a space velocity of 1.0 / 1.0hr -1 (refining / cracking), hydrogen oil ratio 800Nm 3 / m 3 Reaction under the condition of separation reaction effluent to obtain light naphtha fraction, heavy naphtha fraction, kerosene fraction, diesel oil fraction, unconverted tail oil, wherein kerosene fraction and straight-run kerosene fraction A are mixed according to the mass percentage of 50:50 , enter the hydrotreating reactor together with hydrogen, and contact with catalyst RIC-1, at hydrogen partial pressure of 6.0MPa, temperature of 345°C, and space velocity of 1.5hr -1 , Hydrogen oil ratio 500Nm 3 / m 3 Under the condition of reaction, the reaction effluent is separated to obtain jet fuel fraction. The properties of vacuum gas oil A and straight-run kerosene A raw mate...

Embodiment 2

[0045] Vacuum gas oil B and hydrogen enter the hydrocracking reactor, pass through the catalysts RN-2 and RT-5 in sequence, at a hydrogen partial pressure of 8.0MPa, a temperature of 370 / 375°C (refining / cracking), and a space velocity of 1.5 / 1.8hr -1 (refining / cracking), hydrogen oil ratio 700Nm 3 / m 3Reaction under the conditions, separation of the reaction effluent to obtain light naphtha fraction, heavy naphtha fraction, kerosene fraction, diesel fraction, unconverted tail oil, wherein the kerosene fraction and straight-run kerosene fraction B are mixed in a mass percentage of 70:30 , enter the hydrotreating reactor together with hydrogen, and contact with the catalyst RIC-1, at a hydrogen partial pressure of 4.0MPa, a temperature of 335°C, and a space velocity of 3.0hr -1 , Hydrogen oil ratio 400Nm 3 / m 3 Under the condition of reaction, the reaction effluent is separated to obtain jet fuel fraction. The properties of vacuum gas oil B and straight-run kerosene B raw ma...

Embodiment 3

[0047] Vacuum gas oil C and hydrogen enter the hydrocracking reactor, pass through the catalysts RN-2 and RT-5 in sequence, at a hydrogen partial pressure of 8.0MPa, a temperature of 370 / 375°C (refining / cracking), and a space velocity of 1.5 / 1.8hr -1 (refining / cracking), hydrogen oil ratio 700Nm 3 / m 3 Reaction under the condition of separating the reaction effluent to obtain light naphtha fraction, heavy naphtha fraction, kerosene fraction, diesel oil fraction, unconverted tail oil, wherein the kerosene fraction and the straight-run kerosene fraction C are mixed according to the mass percentage of 70:30 , enter the hydrotreating reactor together with hydrogen, and contact with the catalyst RIC-1, at a hydrogen partial pressure of 4.0MPa, a temperature of 335°C, and a space velocity of 3.0hr -1 , Hydrogen oil ratio 400Nm 3 / m 3 Under the condition of reaction, the reaction effluent is separated to obtain jet fuel fraction. The raw material properties of vacuum gas oil C an...

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Abstract

In the jet fuel producing process, heavy material is first hydrocracked and the resultants of hydrocracking reaction are separated to obtain intermediate fraction oil. The intermediate fraction oil and light material are then hydrogenation processed and the resultants of the hydrogenation reaction are separated to obtain the destination product jet fuel. Fresh hydrogen may be replenished to hydrocracking reaction region and / or hydrogenation processing reaction region. The present invention can produce jet fuel with qualified smoke point, arene content and other indexes at relatively low reaction pressure, and this expands the material source for producing jet fuel.

Description

technical field [0001] The present invention relates to a method for cracking and refining hydrocarbon oils in order to obtain low boiling fractions in the presence of hydrogen, more particularly to a combined hydrocracking and hydrotreating process for the production of jet fuel. Background technique [0002] Since the 1990s, with the growth of transportation capacity, the improvement of agricultural mechanization and the dieselization of vehicles, the demand structure of the oil market has changed. On the one hand, with the rapid development of the transportation industry, the demand for engine fuel is increasing day by day; on the other hand, the gasoline used for vehicles has decreased slightly, and middle distillates such as jet fuel and diesel oil for vehicles have increased. The trend of heavy and inferior crude oil makes countries must adopt advanced processing technology to obtain enough middle distillates. Although both catalytic cracking a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G65/12
Inventor 张晓辉胡志海石玉林熊震霖王子文陈水银
Owner CHINA PETROLEUM & CHEM CORP
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