Catalytic conversion method for directly processing high chlorine raw material

A catalytic conversion method and catalytic conversion technology, applied in the field of catalytic conversion for direct processing of high-chlorine raw materials, can solve the problems of inability to effectively remove chlorides, achieve the effects of compensating for the decline in activity, simple operation, and improved selectivity

Active Publication Date: 2016-03-02
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

[0011] The purpose of the present invention is to provide a catalytic conversion method for directly processing high-chlorine raw materials in order

Method used

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  • Catalytic conversion method for directly processing high chlorine raw material

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Embodiment approach

[0064] According to a preferred embodiment of the present invention, when the catalytic conversion method is performed in a riser reactor, the method includes the following steps:

[0065] The lower temperature catalytic conversion catalyst is injected into the pre-elevating section of the riser reactor, and flows upward under the action of the pre-elevating medium into the initial reaction zone of the riser reactor, and the preheated high-chlorine raw material is transferred from the lower part of the initial reaction zone Inject, contact and react with the catalytic conversion catalyst at a lower temperature, and the formed oil mixture goes up and enters the main reaction zone of the riser reactor, and compares with the higher temperature catalytic conversion catalyst injected from the lower part of the main reaction zone. Contact reaction at high temperature, the formed oil-agent mixture undergoes gas-solid separation through the reactor outlet, and the separated solid catalyst...

Embodiment 1

[0083] This example is used to illustrate the catalytic conversion method for directly processing high-chlorine raw materials according to the present invention.

[0084] according to figure 1 The test is performed on the medium-sized device of the riser reactor. The high-chlorine feedstock oil is preheated to 220°C and injected into the initial reaction zone of the riser reactor via line 15, and the cooled steam lifted The regenerated catalyst (580℃) is contacted and reacted in the initial reaction zone, so that the chlorine-containing compound in the high-chlorine raw material is adsorbed on the acid center of the catalyst, and the chlorine-containing compound is decomposed below about 10% by weight. The weight ratio of the agent to oil is 6 :1, the reaction time is 1.5 seconds, the reaction temperature is 505°C, the reaction pressure is 350kPa, and the weight ratio of water vapor to high-chlorine feedstock oil is 0.05:1. The oil mixture generated in the initial reaction zone ...

Embodiment 2

[0088] This example is used to illustrate the catalytic conversion method for directly processing high-chlorine raw materials according to the present invention.

[0089] according to figure 1 The test is performed on the medium-sized device of the riser reactor. The high-chlorine feedstock oil is preheated to 300°C and injected into the initial reaction zone of the riser reactor via line 15, and the cooled steam lifted The regenerated catalyst (550°C) is contacted and reacted in the initial reaction zone, so that the chlorine-containing compounds in the high-chlorine raw materials are adsorbed on the acidic center of the catalyst, and the chlorine-containing compounds of about 15% by weight or less are decomposed. The weight ratio of the agent to oil is 15 :1, the reaction time is 2 seconds, the reaction temperature is 480°C, the reaction pressure is 350kPa, and the weight ratio of water vapor to high-chlorine feedstock oil is 0.05:1. The oil mixture generated in the initial re...

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Abstract

The present invention relates to a catalytic conversion method for directly processing a high chlorine raw material. The method comprises that a pre-heated high chlorine raw material and a first catalytic conversion catalyst are subjected to a first contact reaction to make the chlorine-containing compound in the high chlorine raw material be adsorbed on the first catalytic conversion catalyst and decompose less than or equal to 30% by weight of the chlorine-containing compound to obtain a first contacting product; and the first contacting product and a second catalytic conversion catalyst are subjected to a second contact reaction to remove the chlorine-containing compound, wherein the reaction temperature of the second contact reaction is higher than the reaction temperature of the first contact reaction. With the method of the present invention, the high chlorine raw material can be directly processed while the high dechlorination rate can be obtained, the high chlorine raw material conversion rate can be improved, the product selectivity can be improved, and the dry gas yield and the coke yield can be reduced.

Description

Technical field [0001] The invention relates to a method for catalytic conversion of hydrocarbon oil, in particular to a method for catalytic conversion of directly processing high-chlorine raw materials. Background technique [0002] my country’s oil resources are relatively short. In 2012, the Swiss Bank released a report on the status of the global oil sector. China’s oil reserves are about 15 billion barrels, accounting for 1.1% of the world’s oil reserves, which is only enough for 10 years. The deterioration of crude oil has become more and more serious around the world. Especially in the past ten years, water injection has been the mainstay. The application of multiple oil extraction technologies has made the composition of crude oil and reinjected water complicated, which not only caused difficulties in the treatment of crude oil and sewage, but also The stable operation of oil refining equipment, equipment corrosion, and product quality have serious impacts. Among them, c...

Claims

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Application Information

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IPC IPC(8): C10G29/00C10G29/02C10G29/04C10G29/06
Inventor 魏晓丽张久顺宋宝梅陈学峰谢朝钢毛安国
Owner CHINA PETROLEUM & CHEM CORP
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