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A catalytic conversion method for directly processing high-chlorine raw materials

A catalytic conversion and high chlorine technology, applied in the petroleum industry, refining with non-metals, refining with metals, etc., can solve the problems of inability to effectively remove chlorides, achieve improved product selectivity, increase conversion rate, and simple operation Effect

Active Publication Date: 2017-11-24
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 to overcome the defect that existing methods cannot effectively remove chlorides when the content of organic chlorides in the raw materials is high

Method used

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  • A catalytic conversion method for directly processing high-chlorine raw materials

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Experimental program
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Effect test

Embodiment approach

[0067] According to a preferred embodiment of the present invention, the catalytic conversion method comprises the steps of:

[0068] The high-temperature regenerated catalyst is injected into the pre-lift section of the riser reactor, and under the action of the pre-lift medium, it flows upward into the initial reaction zone at the lower part of the riser reactor, and the preheated high-chlorine raw material enters the initial reaction from the lower part of the riser reactor In the zone, it contacts, reacts and goes up with the high-temperature regenerated catalyst; the formed oil mixture enters the main reaction zone of the riser reactor, and continues the hydrocarbon conversion reaction in the main reaction zone; the formed oil mixture enters the fluidized bed The reactor is in contact with the high-temperature regenerated catalyst from the regenerator to continue the hydrocarbon conversion reaction. After the reaction, the stream enters the cyclone separator in the settler...

Embodiment 1

[0086] This example is used to illustrate the catalytic conversion method for directly processing high-chlorine raw materials according to the present invention.

[0087] according to figure 1 The process shown in the test was carried out on a medium-sized catalytic cracking unit. The high-chlorine feedstock oil was preheated to 350°C and injected into the initial reaction zone of the riser reactor through pipeline 15, and was mixed with the high-temperature regenerated catalyst (660°C ) contact reaction in the initial reaction zone, wherein the weight ratio of agent to oil is 6:1, the reaction time is 0.8 seconds, the reaction temperature is 535°C, 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 continues upward into the main reaction zone to continue the reaction, wherein the reaction temperature is 525°C, the reaction time is 1.5 seconds, and the ratio of the riser diameter of the initial r...

Embodiment 2

[0091] This example is used to illustrate the catalytic conversion method for directly processing high-chlorine raw materials according to the present invention.

[0092] according to figure 1 The process shown in the test was carried out on a medium-sized catalytic cracking unit. The high-chlorine feedstock oil was preheated to 220°C and injected into the initial reaction zone of the riser reactor through pipeline 15, and was mixed with the high-temperature regenerated catalyst (650°C ) contact reaction in the initial reaction zone, wherein the weight ratio of agent to oil is 30:1, the reaction time is 0.2 seconds, the reaction temperature is 560°C, 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 continues upward into the main reaction zone to continue the reaction. The reaction temperature is 540°C, the reaction time is 3 seconds, and the ratio of the diameter of the riser in the initial rea...

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Abstract

The invention relates to a catalytic conversion method for directly processing a high-chlorine raw material. The method comprises the following steps: carrying out a catalytic conversion reaction on a preheated high-chlorine raw material and a catalytic conversion catalyst in the initial reaction zone and the main reaction zone of a riser reactor, allowing the above obtained oil mixture to enter a fluidized bed reactor through the outlet of the riser reactor, and continuously carrying out a catalytic conversion reaction on the oil mixture and a supplemented and injected second catalytic conversion catalyst, wherein the reaction temperature of the initial reaction zone in the riser reactor is higher than the reaction temperature of the main reaction zone, and the reaction time of the initial reaction zone is shorter than the reaction time of the main reaction zone. The method can be used to directly process the high-chlorine raw material, allows a high dechlorination rate to be obtained, and also can improve the conversion rate of the high-chlorine raw material, improve the product selectivity and reduce the yield of dry gas and coke.

Description

technical field [0001] The invention relates to a catalytic conversion method for hydrocarbon oil, in particular to a catalytic conversion method for directly processing high-chlorine raw materials. Background technique [0002] my country's oil resources are relatively short. In 2012, the Swiss Bank issued a report on the status quo of the global oil field. It pointed out that 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 trend of poor quality of crude oil is becoming more and more serious all over the world. Especially in the past ten years, water injection production has been the main method. The application of various oil recovery technologies has made the components of crude oil and reinjection water complex, which not only causes difficulties in the treatment of crude oil and sewage, but also affects the The stable operation of the refinery unit, equipment corrosion, and produc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G29/00C10G29/02C10G29/04C10G29/06
Inventor 魏晓丽谢朝钢毛安国张久顺宋宝梅陈学峰
Owner CHINA PETROLEUM & CHEM CORP
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