A method of producing high-octane fuel

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

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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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  • A method of producing high-octane fuel
  • A method of producing high-octane fuel
  • A method of 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 to 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. The raw material containing aromatics enters the hydrorefining reaction zone for hydrorefining reaction, and the obtained effluent enters the hydroconversion reactor from the bottom of the reactor together with the recycle product, and first passes through the transalkylation catalyst bed; the obtained transalkylation effluent is The gas-liquid separation is carried out in the middle of the reactor, and the gas is pumped out of the reactor; the obtained liquid phase passes upward through the bed of the hydroconversion catalyst to carry out the hydroconversion reaction; the hydroconversion product and the gas phase extracted from the middle of the reactor are separated and fractionated to obtain gasoline fractions and diesel oil fraction. 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 device processing capacity.

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 Patents(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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