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Pretreatment method of hydrocarbon oil in petroleum hydrocarbon catalytic cracking process

A catalytic cracking and pretreatment technology, which is applied in catalytic cracking, cracking, petroleum industry, etc., can solve problems that have not yet been involved in raw material oil emulsification and metal passivation, and achieve the goal of increasing the yield of target products, lowering operating costs, and reducing pollution. Effect

Inactive Publication Date: 2004-10-06
CHINA PETROLEUM & CHEM CORP +1
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AI Technical Summary

Problems solved by technology

[0005] In summary, the prior art has not yet involved a technical solution that combines the emulsification of raw oil with metal passivation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] This example illustrates: the test results obtained after the raw oil is pretreated by the method provided by the present invention.

[0027] The raw material oil is pretreated according to the method provided by the present invention: the catalytic cracking raw material oil mixed with emulsifier, passivator and water is sent to an emulsifier. The emulsified oil was formed under high-speed (9000r / min) shear at a temperature of 80°C by using a high-shear mixing emulsifier produced by the state-run Qidong Changjiang Machinery Factory. Wherein, the passivating agent used and its dosage are the same as those of Comparative Example 1, both being the antimony-based passivating agent LMP-4, and the concentration of antimony in the raw oil is 40ppm. The emulsifier adopts chemically pure isooctyl alcohol; the addition amount thereof is 2% by weight of the total weight of the passivator; the addition amount of water is 4% by weight of the weight of the raw oil. The emulsified ra...

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Abstract

A process for pre-treating the raw hydrocarbon oill in the catalytic cracking procedure of petroleum hydrocarbon includes mixing the raw oil with emulsifier, passivator and water, and emulsifying at 60-100 deg.c to become emulsified water-in-oil material. It can improve atonizing effect, lower metal pollution and benefit to prepare low-olefin gasoline.

Description

technical field [0001] The invention belongs to a method for catalytic cracking of petroleum hydrocarbons in the absence of hydrogen, more specifically, a method for pretreatment of hydrocarbon oil raw materials in the catalytic cracking process of petroleum hydrocarbons. Background technique [0002] At present, there have been relevant research reports at home and abroad on the technology of introducing emulsification technology into the heavy oil catalytic cracking process. The atomization and vaporization of heavy oil play a very important role in the catalytic cracking reaction of heavy oil. With the use of high-efficiency atomizing nozzles, the efficiency of catalytic cracking of heavy oil has been improved to a certain extent. The use of emulsified heavy oil as feedstock for catalytic cracking is based on the "micro-explosion" theory and the "molecular aggregation and depolymerization" theory. The emulsified raw oil after one atomization is in contact with a high-tem...

Claims

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Application Information

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IPC IPC(8): C10G11/00C10G31/08
Inventor 高永灿张瑞驰张久顺谢朝钢马建国孙益群
Owner CHINA PETROLEUM & CHEM CORP
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