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A method for producing high-octane fuels from raw materials containing aromatics

A high-octane, raw material technology, used in hydrocarbon oil processing products, hydrocarbon oil processing, petroleum industry and other directions, can solve the problem of low octane number of gasoline products, and achieve the effect of high thermal stability

Active Publication Date: 2021-10-08
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] US4971680 discloses a method of using a hydrocracking catalyst to selectively crack aromatics in diesel oil, especially bicyclic aromatics, into gasoline components, but the gasoline product has a low octane number and still needs further treatment

Method used

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  • A method for producing high-octane fuels from raw materials containing aromatics
  • A method for producing high-octane fuels from raw materials containing aromatics
  • A method for producing high-octane fuels from raw materials containing aromatics

Examples

Experimental program
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Effect test

Embodiment 1

[0046] Embodiment 1 adopts figure 1 In the hydrogenation process, the W-Mo-Ni type hydrotransalkylation catalyst A is loaded in the hydrotransalkylation catalyst at the lower part of the hydroconversion reactor. The properties of the catalyst are shown in Table 1.

[0047] Table 1 Physicochemical properties of catalyst A.

[0048]

[0049] See Table 2 for the raw material oils used in the examples of the present invention and comparative examples. See Table 3 for the main operating process conditions and gasoline product properties in the embodiments of the present invention and comparative examples.

[0050] Table 2 Properties of raw oil.

[0051]

[0052] Table 3 Main operating process conditions and properties of gasoline products.

[0053]

[0054] As can be seen from the data results of the examples and comparative examples, the hydroconversion process of the present invention adopts a process method in which a trickle bed and a fixed bed liquid phase hydrogen...

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Abstract

The invention discloses a method for producing high-octane gasoline from raw materials containing aromatic hydrocarbons. The aromatics-containing raw material enters the hydrorefining reaction zone for hydrorefining reaction, and the resulting effluent enters the hydroconversion reactor from the middle of the reactor, where it undergoes gas-liquid separation; the resulting gas passes upward through the hydroconversion catalyst bed, and reacts The circulating oil entering from the top of the reactor is contacted to carry out hydroconversion reaction and saturated hydrogen dissolution; the separated liquid phase passes downward through the bed of hydrogenation transalkylation catalyst to eliminate the steric hindrance effect in condensed ring aromatics, and the obtained effluent One part is used as product and the other part is recycled back to the top of the hydroconversion reactor. The method of the invention can avoid the loss of gasoline octane number caused by excessive hydrogenation, obtain better blending components of diesel oil at the same time, can better reduce investment, and increase the processing capacity of the device.

Description

technical field [0001] The invention relates to a method for producing high-octane fuel by catalyzing diesel oil, especially a process method combining trickle bed and fixed-bed liquid-phase hydrogenation reaction, which can better convert raw materials into high-octane fuel, Avoid excessive hydrogenation, causing octane loss, and can better reduce investment, increase the processing capacity of the device, and reduce the energy consumption of the device. Background technique [0002] Due to the slow growth of crude oil production and increasingly heavy quality, the demand for clean oil products in today's world is increasing, and the product quality requirements are becoming more and more stringent. Therefore, relatively higher requirements are put forward for the crude oil secondary processing capacity of petroleum refining and chemical enterprises. The secondary processing devices of petroleum refining and chemical enterprises are mainly coking, catalytic cracking, hydro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G67/02
CPCC10G67/02C10G2300/305C10G2300/4006C10G2300/4012C10G2300/70C10G2400/02C10G2400/04
Inventor 陈光李扬徐大海牛世坤李士才丁贺
Owner CHINA PETROLEUM & CHEM CORP
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