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Production method of propylene and gasoline with high-octane rating

A high-octane gasoline and propylene technology, applied in the field of hydrocarbon oil processing, to achieve the effects of improving cracking performance, efficient utilization, increasing conversion rate and light oil yield

Active Publication Date: 2015-07-01
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

FCC heavy oil mixed with hydrogen and contacted with hydrogenation catalyst for reaction

Method used

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  • Production method of propylene and gasoline with high-octane rating

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Embodiment 1

[0024] The catalytic cracking heavy oil is mixed with hydrogen, and then reacted with hydrogenation protection agent, hydrogenation deasphaltenation agent and hydrofinishing agent successively. See Table 3 for the process conditions of catalytic cracking heavy oil hydrogenation and the properties of the produced oil. See Table 4 for the process conditions, product distribution and gasoline properties of the catalytic cracking unit. It can be seen from Table 3 and Table 4 that after catalytic cracking heavy oil is hydrotreated, the resulting oil ΔH (increased hydrogen content) is 1.50%, and the naphthene content is 45.0% by weight. The gasoline yield is 6.25%, the gasoline yield is 57.90%, and the gasoline octane number (RON) is 93.6.

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Abstract

A production method of propylene and gasoline with high-octane rating. The method is as below: introducing catalytic cracking heavy oil from a catalytic cracking unit into a hydrogenation unit; contacting the catalytic cracking heavy oil with a hydrogenation catalyst under hydrogenation reaction conditions for reaction; controlling hydrogenation severity of the hydrogenation unit, so that after hydrogenation of the catalytic cracking heavy oil, 10-80 wt% of polycyclic aromatic hydrocarbons is subjected to hydrogen saturation into cycloalkanes; and sending the hydrogenated oil into the catalytic cracking unit for a cracking reaction to produce propylene and gasoline with high-octane rating. The invention can greatly improve the cracking performance of catalytic cracking heavy oil, thus improving the conversion and the yield of light oil of the catalytic cracking unit, and realizing efficient utilization of oil resources.

Description

technical field [0001] The invention relates to a method for processing hydrocarbon oil, more specifically, a method for producing propylene and high-octane gasoline by processing catalytic cracking heavy oil by combining a hydrogenation unit and a catalytic cracking unit. Background technique [0002] In recent years, international oil prices have continued to rise, while my country's economic development has continuously increased the demand for high-value petroleum products. At present, the market's requirements for light, high-quality and clean petroleum products are in contradiction with the continuous heavy and low-quality supply of crude oil. exacerbated. Therefore, it is an important challenge for my country's oil refining industry to promote the deep and efficient conversion of limited heavy oil resources and increase light oil products. At the same time, with the rapid growth of demand for derivatives such as polypropylene, the market demand for propylene is also i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G69/04C07C11/06C07C4/06
CPCY02P20/52
Inventor 刘涛戴立顺许友好牛传峰孙淑玲邵志才杨清河
Owner CHINA PETROLEUM & CHEM CORP
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