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Kerosene-hydrogenation production process and system

A production process and jet fuel technology, which is applied in the production process field of jet fuel hydrogenation, can solve the problems of high energy consumption, low energy recovery and utilization rate of the device, etc. reduced effect

Inactive Publication Date: 2016-06-15
BEIJING YANSHAN YULONG PEC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] The disadvantages of the above several technological processes are: due to the adoption of the cold high-separation process, the materials are repeatedly cooled and heated, resulting in low energy recovery and utilization of the device and high energy consumption

Method used

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  • Kerosene-hydrogenation production process and system
  • Kerosene-hydrogenation production process and system
  • Kerosene-hydrogenation production process and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0096] This embodiment adopts the hydrogen mixing heat high-pressure separator process in front of the furnace, and the process flow is shown in the attached figure 2 .

[0097] (1) Reaction part

[0098]The pressurized aviation kerosene raw material S1 (40°C, 166 tons / hour) is first exchanged in the heat exchanger E9 with the jet kerosene product S30 from the hot side outlet of the heat exchanger E4 to about 138°C, and then with the circulating hydrogen S14 is mixed via pipeline 29. The vapor-liquid mixture is heated to 245°C through the heat exchanger E1 and the reaction product S5, then enters the raw material heating furnace F1 through the pipeline 3 and is heated to 260°C, and then enters the jet fuel sweetening reactor R1 through the pipeline 4.

[0099] The operating condition of jet fuel sweetening reactor R1 is 2.0MPa, 260°C. Hydrogenation reaction occurs in jet coal sweetening reactor R1, and non-hydrocarbon compounds such as sulfur, oxygen, and nitrogen in fuel o...

Embodiment 3

[0111] When the hydrogen mixing process after the furnace is adopted, the following procedures are included (see attached image 3 )

[0112] (1) Reaction part

[0113] After the jet fuel raw material is pressurized, it first passes through the heat exchanger E1 to exchange heat with the reaction product, then enters the raw material heating furnace F1 to be heated, and then mixes with circulating hydrogen, and then enters the jet fuel sweetening reactor R1.

[0114] The hydrogenation reaction takes place in the jet fuel sweetening reactor R1, the sulfur, oxygen, nitrogen and other non-hydrocarbon compounds in the fuel oil are effectively removed, and at the same time, some olefins and aromatics are hydrogenated and saturated.

[0115] The reaction product comes out from the bottom of the aviation coal sweetening reactor R1, first passes through the heat exchanger E1 to exchange heat with the raw material, and then enters the hot high-pressure separator D4, and the hydrogen-r...

Embodiment 4

[0123] When using the hydrogen mixing process in front of the furnace, the following procedures are included (see attached Figure 4 )

[0124] (1) Reaction part

[0125] The raw material of jet fuel is pressurized and mixed with circulating hydrogen, first passes through the heat exchanger E1 to exchange heat with the reaction product, then enters the raw material heating furnace F1 for heating, and then enters the jet fuel sweetening reactor R1.

[0126] The hydrogenation reaction takes place in the jet fuel sweetening reactor R1, the sulfur, oxygen, nitrogen and other non-hydrocarbon compounds in the fuel oil are effectively removed, and at the same time, some olefins and aromatics are hydrogenated and saturated.

[0127] The reaction product comes out from the bottom of the aviation coal sweetening reactor R1, first passes through the heat exchanger E1 to exchange heat with the raw material, and then enters the hot high-pressure separator D4, and the hydrogen-rich vapor p...

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Abstract

The invention discloses a kerosene-hydrogenation production process. The process comprises a reaction part and a fractionation part, wherein a reaction product of the reaction part directly enters a high-pressure hot separator without being cooled after exchanging heat with raw materials, a flash steam phase is cooled to about 50 DEG C through an air cooler after exchanging heat with recycle hydrogen or new hydrogen and then enters a high-pressure cold separator, and high-temperature reaction products separated from the bottoms of the high-pressure hot separator and the high-pressure cold separator exchange heat with refined kerosene from the bottom of a fractionating tower and are sent to the fractionation part. Compared with the prior art, the kerosene-hydrogenation production process is improved, the energy recycle efficiency of a device can be effectively improved and the energy consumption of the device is reduced with the process. The invention further provides a kerosene-hydrogenation production system adopting the kerosene-hydrogenation production process.

Description

technical field [0001] The invention relates to a production process for jet fuel hydrogenation, which produces low-sulfur jet fuel meeting jet fuel standards through hydrogenation and refining of straight-run jet fuel. Background technique [0002] Jet fuel, also known as aviation kerosene, or aviation kerosene for short, is widely used in military aircraft and civil aviation aircraft. Its production method is generally to obtain the atmospheric pressure first-line straight-run fuel oil or the kerosene fraction obtained by secondary processing through deep hydrotreating. [0003] Hydrofining can effectively remove non-hydrocarbon compounds such as sulfur, oxygen, and nitrogen in fuel oil, and can hydrogenate some olefins and aromatics. Depending on the catalyst system used, the operating conditions are usually at a temperature of 200-400°C, a pressure of 0.7-3.2MPa, a space velocity of 2-4h-1, and a hydrogen-to-oil ratio of 30-200. [0004] The current typical jet fuel hy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G67/14
CPCC10G67/14C10G2300/202
Inventor 姚振卫孙吉庆林敏杰仇志康
Owner BEIJING YANSHAN YULONG PEC
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