Method for producing high-octane fuel from aromatic hydrocarbon-containing raw material

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

Active Publication Date: 2020-07-07
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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  • Method for producing high-octane fuel from aromatic hydrocarbon-containing raw material
  • Method for producing high-octane fuel from aromatic hydrocarbon-containing raw material
  • Method for producing high-octane fuel from aromatic hydrocarbon-containing raw material

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 an aromatic hydrocarbon-containing raw material. The aromatic hydrocarbon-containing raw material enters a hydrofining reactionzone for a hydrofining reaction, an obtained effluent enters a hydro-conversion reactor from the middle of the reactor, and gas-liquid separation is carried out in the hydro-conversion reactor; the obtained gas passes upwards through a hydro-conversion catalyst bed to make contact with circulating oil entering from the top of the reactor so as to carry out hydro-conversion reaction and carry outsaturated hydrogen dissolution; a separated liquid phase passes downwards through a hydrogenation transalkylation catalyst bed to eliminate the steric hindrance effect in the polycyclic aromatic hydrocarbon, one part of the obtained effluent is used as a product, and the other part of the effluent is recycled back to the top of the hydro-conversion reactor. By the method, gasoline octane number loss caused by excessive hydrogenation can be avoided, meanwhile, good diesel oil blending components are obtained, investment can be better reduced, and the treatment capacity of the device is improved.

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 Applications(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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