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Method for processing heavy raw materials

A processing method and technology for heavy raw materials, which are applied in the petroleum industry, hydroprocessing process, and hydrocarbon oil treatment, can solve the problems of crude oil adaptability, complicated operation, and high failure rate, so as to reduce investment and operating costs, The process is simple and the effect of prolonging the operation cycle

Active Publication Date: 2018-06-01
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantage of this route is that it has poor adaptability to crude oil and is suitable for processing light and some medium sour crude oil
For ebullating bed reactors, each reactor requires a set of online catalyst addition system, which requires a high investment (accounting for about half of the total investment of ebullated bed hydrogenation units after evaluation), and the operation Complex, with the highest failure rate

Method used

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  • Method for processing heavy raw materials
  • Method for processing heavy raw materials
  • Method for processing heavy raw materials

Examples

Experimental program
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Effect test

Embodiment 1

[0099] The fixed-bed residual oil hydrogenation pretreatment reactor in the fixed bed reaction zone is composed of three sets, which are respectively hydrogenation pretreatment reactor A, hydrogenation pretreatment reactor B, and hydrogenation pretreatment reactor C. The catalyst total load, feed properties and feed amount of hydroprocessing pretreatment reactor A, hydrogenation pretreatment reactor B, hydrogenation pretreatment reactor C are exactly the same, and described hydroprocessing pretreatment reactor A, hydrogenation pretreatment reactor A, hydrogenation pretreatment reactor C The catalysts in pretreatment reactor B, hydropretreatment reactor C, and hydrodesulfurization reactor D were loaded according to the method in Table 2.

Embodiment 2

[0101] In Example 2, the space velocities of the reverse feeds of the hydrogenation pretreatment reactor A, the hydrogenation pretreatment reactor B, and the hydrogenation pretreatment reactor C are different, and the liquid hourly volume of the hydrogenation pretreatment reactor A is The air speed is 0.20h -1 , the hourly volumetric space velocity of liquid B in the hydrogenation pretreatment reactor is 0.32h -1 , the volumetric space velocity of liquid C in the hydrogenation pretreatment reactor is 0.44h -1 . Hydrogenation pretreatment reactor A, hydrogenation pretreatment reactor B, and hydrogenation pretreatment reactor C adopt the same catalyst loading method, and the catalyst loading method is shown in Table 2.

Embodiment 3

[0103] In Example 3, the feed amounts of the hydrogenation pretreatment reactor A, the hydrogenation pretreatment reactor B, and the hydrogenation pretreatment reactor C are exactly the same. The average reaction temperature of the hydrogenation pretreatment reactor A is 370°C, the average reaction temperature of the hydrogenation pretreatment reactor B is 378°C, the average reaction temperature of the hydrogenation pretreatment reactor C is 383°C, and the average reaction temperature of the hydrodesulfurization reactor D The average reaction temperature is 383°C, and the catalyst loading method is shown in Table 2.

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Abstract

The invention discloses a method for processing heavy raw materials. The method comprises the following steps: heavy raw materials are mixed with at least part of oil slurry of a catalytic cracking device, and a mixture enters a fluidized bed reactor for hydrotreatment; obtained f reaction effluent of luidized bed hydrotreatment, at least part of recycle oil from the catalytic cracking device andhydrogen are mixed and then sequentially pass through a fixed bed hydropretreating reaction zone and a fixed bed hydrotreating reaction zone which are arranged in series for a reaction; generated oiltaken as a raw material of the catalytic cracking device enters the catalytic cracking device, catalytic cracking reaction products obtained by a fractionating tower of the catalytic cracking device comprise gasoline fraction, diesel fraction, the recycle oil and the oil slurry. With adoption of the method, the operation period of a processing device can be greatly prolonged.

Description

technical field [0001] The invention relates to a processing method of heavy raw materials, specifically a scheme of organically combining fluidized bed hydrogenation treatment, fixed bed hydrogenation treatment and catalytic cracking to process heavy raw materials to produce fuel oil products. Background technique [0002] At present, the demand for gasoline, coal, diesel and other oil products, especially the demand for motor gasoline in the domestic and foreign oil product markets will continue to rise, while the demand for heavy fuel oil and other heavy oil products will show a downward trend. At the same time, the properties of crude oil are deteriorating day by day on a global scale, environmental protection regulations are becoming stricter, and increasingly stringent requirements are put forward for the quality of oil products. Therefore, how to realize the lightening of heavy oil and the continuous upgrading of the quality of gasoline and diesel products at a more e...

Claims

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Application Information

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IPC IPC(8): C10G69/04
CPCC10G69/04C10G2400/02C10G2400/04
Inventor 刘铁斌耿新国翁延博李洪广
Owner CHINA PETROLEUM & CHEM CORP
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