Mixed hydrogenation process for coker gasoline and coking kerosene

A technology for coking gasoline and kerosene, which is applied in the petroleum industry, gasoline stabilization, and refined hydrocarbon oil, etc. It can solve the problems of high equipment construction investment and operating costs, high equipment operating pressure, and fewer sets of equipment. Minor changes, the effect of improving the properties of oil products

Active Publication Date: 2009-05-20
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantage of this method is that the product of the delayed coking unit is hydrogenated with whole distillates, and the number of units is small; the disadvantage is that the operating pressure of the unit is high, the space velocity is low, and the investment and operation cost of the unit are high.

Method used

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  • Mixed hydrogenation process for coker gasoline and coking kerosene
  • Mixed hydrogenation process for coker gasoline and coking kerosene
  • Mixed hydrogenation process for coker gasoline and coking kerosene

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The mixed oil of coker gasoline and coker kerosene is cut out from the fractionating tower of the delayed coking unit, and the distillation range ranges from 35 to 270°C. Hydrogenated oil takes 140°C as the cut point, gasoline fraction 140°C is regarded as aviation kerosene.

[0035] The properties of raw oil are shown in Table 1, the operating conditions are shown in Table 2, and the properties of hydrogenation products are shown in Table 3.

[0036] Table 1 Properties of raw oil

[0037]

[0038] Table 2 Operating conditions

[0039]

[0040] Table 3 Product properties (cut point 140°C)

[0041]

Embodiment 2

[0043]The mixed oil of coker gasoline and coker kerosene is cut out from the fractionating tower of the delayed coking unit, and the distillation range ranges from 35 to 300°C. Hydrogenated oil takes 150°C as the cut point, gasoline fraction 150°C is regarded as aviation kerosene.

[0044] The properties of raw oil are shown in Table 4, the operating conditions are shown in Table 5, and the properties of hydrogenation products are shown in Table 6.

[0045] Table 4 Properties of raw oil

[0046]

[0047] Table 5 Operating conditions

[0048]

[0049] Table 6 Product properties (cut point 150°C)

[0050]

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Abstract

The invention provides a hydrogenation process by mixing coking gasoline and coking kerosene, comprising the steps as follows: the operation conditions of the fractionation system of a delayed coking device are adjusted; suitable cutting point is adopted; the coking gasoline and the coking kerosene components are not separated and directly enter a special hydrogenation device so that hydrofining is carried out; the coking gasoline and the coking kerosene are disposed by adopting a normal hydrogenation type. Compared with respective hydrogenation and mixing hydrogenation of various coking distillate, the process carries out the hydrogenation by mixing the coking gasoline and the coking kerosene, produces naphtha and aviation kerosene to the most extent, prolongs the service life of the catalyst, improves the operation flexibility of the device, thus obviously improving the economical benefits of the oil refining enterprises.

Description

technical field [0001] The invention belongs to the combined technology of thermal processing technology and hydrogenation treatment technology. Specifically, it is a process technology that combines delayed coking process and hydrotreating process. Background technique [0002] At present, the crude oil processed by refineries is becoming increasingly heavy and inferior. With the development of society and economy, the demand for light distillate oil, especially clean light distillate oil, is gradually increasing. Feedstock is converted to clean light distillate products. Delayed coking is an important means to realize the lightening of inferior heavy oil and residual oil, and has been widely used in various refineries. [0003] The products produced by the delayed coking unit are usually cut into coker gasoline, coker diesel oil and coker wax oil in the fractionation system, and the cut point of gasoline and diesel oil is generally around 180°C. Among them, the coker ga...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G7/02C10G45/00
Inventor 王震戴宝华方向晨关明华胡江青刘继华李扬
Owner CHINA PETROLEUM & CHEM CORP
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