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Method for producing high-octane fuel

A high-octane fuel technology, applied in hydrocarbon oil treatment products, petroleum industry, hydrotreating process, etc., 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

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Problems solved by technology

In this method, when gasoline is produced by pyrolysis, due to the existence of a large amount of hydrogen, hydrogenation reaction occurs simultaneously, so that 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
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  • Method for producing high-octane fuel

Examples

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Embodiment 1

[0045] In Example 1 of the present invention, the same hydrogenation process flow was adopted, and the hydrotransalkylation catalyst A at the lower part of the hydroconversion reactor was filled with W-Mo-Co type hydrotransalkylation catalyst A. The properties of the catalyst are shown in Table 1.

[0046] In the liquid phase obtained by thermal high fractionation, the ratio of the part recycled to the hydroconversion reactor and the fresh raw material oil is 1:1. The remainder enters cold low fractionation and fractional distillation.

[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 Process conditions and gasoline...

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Abstract

The invention discloses a method for producing high-octane gasoline. An aromatic hydrocarbon-containing raw material enters a hydrofining reaction zone for a hydrofining reaction, and an obtained effluent and a circulation product enter a hydro-conversion reactor together from the bottom of the reactor and firstly pass through an alkyl transfer catalyst bed; gas-liquid separation is carried out onthe obtained transalkylation effluent in the middle of a reactor, and gas is extracted out of the reactor; the obtained liquid phase passes through a hydro-conversion catalyst bed upwards, and a hydro-conversion reaction is carried out; and a hydro-conversion product and a gas phase extracted from the middle part of the reactor are subjected to separation and fractionating to obtain a gasoline fraction and a diesel fraction. According to 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, in particular a process method combining trickle bed and upflow fixed bed reaction, which can better convert raw materials into high-octane fuel and avoid excessive hydrogenation , so that the octane number is lost, and it 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, hydrogenation and catalyti...

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 陈光牛世坤徐大海丁贺李士才戴萌
Owner CHINA PETROLEUM & CHEM CORP
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