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Coker gasoline processing technology

A technology for coking gasoline and processing technology, which is applied in the fields of hydrotreating technology, petroleum industry, and hydrocarbon oil treatment, etc. It can solve the problems of affecting product distribution, gasoline octane number, and low reactivity of alkane cracking, so as to reduce processing energy Effects of consumption, shortened processing flow, and high olefin content

Inactive Publication Date: 2020-10-16
盘锦浩业化工有限公司 +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] Although the method of hydrotreating can reduce the content of impurities and olefins in coked gasoline and improve the stability, as a gasoline blending component, because of its low octane number, it will still have a great impact on the octane number of the gasoline pool in the refinery
Coked gasoline can also be directly sent to the catalytic cracking unit for cracking. The problem is that the high nitrogen content will accelerate the deactivation of the cracking catalyst and affect the product distribution. At the same time, the alkane cracking activity in gasoline is low, and a large amount of unreacted alkane enters the gasoline product. Medium Impact Gasoline Octane

Method used

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Embodiment Construction

[0015] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Preferred embodiments of the application are shown in the accompanying drawings. However, the present application can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the application more thorough and comprehensive.

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terminology used herein in the description of the application is only for the purpose of describing specific embodiments, and is not intended to limit the application.

[0017] In view of the fact that there are a large amount of light olefins in coke...

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Abstract

The invention relates to a coking gasoline processing technology, and belongs to the technical field of gasoline processing. The technology comprises carrying out a pre-hydrogenation reaction processon coker gasoline, wherein monoolefine in the coker gasoline is reserved in the step, fractionating the coker gasoline subjected to the pre-reaction to obtain gasoline with light fraction, medium fraction and heavy fraction, respectively treating according to the properties of each fraction, wherein the light fraction gasoline is directly used as a gasoline blending component, separating the medium fraction gasoline to obtain raffinate oil and extract oil, wherein the raffinate oil as a gasoline blending component, and sending the extract oil and the heavy fraction gasoline into a downstream device for reprocessing. According to the process, the characteristics of high olefin content and high octane number in the coking gasoline light component are fully considered, the yield of the high-octane number light component is increased through the sulfur transfer function of the pre-reaction, the processing flow is shortened, the processing energy consumption is reduced, and the process canbe used as an effective way for coking gasoline utilization.

Description

technical field [0001] The invention relates to the field of gasoline processing, in particular to a coking gasoline processing technology. Background technique [0002] Coking gasoline is currently used as a relatively inferior raw material for secondary processing. In coking gasoline, compounds such as diolefins, alkenyl aromatics, and alkynes are relatively high in content, and these unsaturated compounds are extremely unstable, especially diolefins, which are prone to occur after heating. The cyclization reaction and polymerization reaction form macromolecular compounds, which bond and grow up with the fine coke powder in gasoline, causing the catalyst in the subsequent hydrofining section of the refinery to be easily coked and poisoned, seriously affecting production efficiency. In order to make coker gasoline meet the end product standard or meet the feed requirements of downstream units, hydrotreating must be carried out. The conventional processing technology of cok...

Claims

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Application Information

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IPC IPC(8): C10G69/02
CPCC10G69/02
Inventor 贾海龙杨占辉
Owner 盘锦浩业化工有限公司
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