Hydroprocessing method of coker gasoline

A technology of coking gasoline and hydrotreating, which is applied in hydrotreating process, hydrocarbon oil treatment, petroleum industry, etc. It can solve the problems of main reactor temperature rise impact, difficult operation control, economic loss, etc., and achieve quality improvement and reduction Severity, the effect of reducing energy consumption

Active Publication Date: 2015-07-22
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
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  • Claims
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Problems solved by technology

Although this method can ensure the non-stop operation of the device, if the raw material is not pretreated, it will cause a large impact on the temperature rise of the main reactor, making the operation more difficult to control
At the same time, the replacement of the pretreatment catalyst will also lead to economic losses

Method used

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  • Hydroprocessing method of coker gasoline

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Embodiment 1

[0029] according to figure 1 In the reactor structure shown, the catalyst bed gradation decreases from bottom to top in order of particle size, and the void ratio of the catalyst bed also decreases in order. The three catalysts are FH-40C, FHRS-1, and FZC-102B developed and produced by Fushun Petrochemical Research Institute. Hydrogen protectant. The main properties of the catalyst are shown in Table 1. The volume ratio of the three catalyst beds of FZC-102B, FHRS-1 and FH-40C is 2:2:6. The raw material oil is coker gasoline, and the circulating oil is coking diesel oil. The properties of raw material oil and circulating oil are shown in Table 2. The process conditions and product properties after 2 months of operation are shown in Table 3.

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Abstract

The invention discloses a hydroprocessing method of coker gasoline. By adoption of circulating oil, dienes and other unsaturated hydrocarbons in raw materials are diluted and heat of reactions is took away, thus avoiding coking of a catalyst bed layer and reducing the pressure drop of a reactor. Without large change on devices at present, the method can achieve long-term operation of the devices and increase economic benefit with small investment.

Description

technical field [0001] The invention relates to a method for hydrogenation treatment of coked gasoline, which belongs to the technical field of petrochemical industry. Background technique [0002] In recent years, due to the increasing scarcity of petroleum resources worldwide and the increasing demand for energy in various countries, people have paid more and more attention to the technology of residual oil lightening. As a kind of decarbonization technology, residual oil coking process has the advantages of low investment and low operating cost, so it has been widely developed. Coking gasoline, one of the coking products, contains high heteroatoms such as olefins, sulfur, nitrogen, and silicon, and has poor stability. It cannot be used directly as a product, or even directly as a feed for downstream devices. In order to make coker gasoline meet the end product standard or meet the feed requirements of downstream units, hydrorefining or hydrotreating must be carried out. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G65/02C10G45/08
Inventor 王喜彬郭蓉曾榕辉蒋立敬贾永忠贾丽
Owner CHINA PETROLEUM & CHEM CORP
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