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A kind of heavy oil hydrotreating process method and system

A treatment process, heavy oil hydrogenation technology, applied in the direction of hydrogenation treatment process, hydrocarbon oil treatment products, hydrocarbon oil treatment, etc., can solve the limited, reduce coke yield and other problems, to achieve the effect of prolonging the operation cycle and simple process

Active Publication Date: 2019-06-14
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, this method is limited to reduce coke yield and improve product quality

Method used

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  • A kind of heavy oil hydrotreating process method and system
  • A kind of heavy oil hydrotreating process method and system
  • A kind of heavy oil hydrotreating process method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0090] Raw material A is all used in the hydrogenation pretreatment reactor A, hydrogenation pretreatment reactor B, and hydrogenation pretreatment reactor C described in embodiment 1, and the hydrogenation pretreatment reactor A, hydrogenation pretreatment reactor B, the total amount of catalyst installed in the hydrogenation pretreatment reactor C, the feed properties and the feed amount are exactly the same, the hydrogenation pretreatment reactor A, the hydrogenation pretreatment reactor B, the hydrogenation pretreatment reactor C, The catalyst of hydrodesulfurization reactor D is loaded according to the method in Table 2, the operating conditions are shown in Table 4, the specific reaction results are shown in Table 6, and the properties of the products obtained after ebullating bed hydrocracking are shown in Table 7.

Embodiment 2

[0092] In Example 2, raw material B is used in the hydrogenation pretreatment reactor A, hydrogenation pretreatment reactor B, and hydrogenation pretreatment reactor C. The specific properties are shown in Table 1, and the space velocities of each reverse feed are different. The hourly volume space velocity of liquid A in the hydrogenation pretreatment reactor 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 . The same catalyst loading method is adopted in the hydrogenation pretreatment reactor A, the hydrogenation pretreatment reactor B, and the hydrogenation pretreatment reactor C. The catalyst loading method is shown in Table 2, and the operating conditions of each reactor are shown in Table 4. The specific reaction results are shown in Table 6.

Embodiment 3

[0094] In Example 3, the raw material A is used in the hydrogenation pretreatment reactor A, the raw material B is used in the hydrogenation pretreatment reactor B, and the raw material C is used in the hydrogenation pretreatment reactor C. The properties of the raw materials used are shown in Table 1. The feed amount of described hydrogenation pretreatment reactor A, hydrogenation pretreatment reactor B, hydrogenation pretreatment reactor C is the same, and described hydrogenation pretreatment reactor A, hydrogenation pretreatment reactor B, hydrogenation pretreatment reactor The same catalyst loading method is adopted in the hydrogen pretreatment reactor C. The catalyst loading method is shown in Table 2, the operating conditions of each reactor are shown in Table 4, and the specific reaction results are shown in Table 6.

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Abstract

The invention relates to the field of heavy oil hydrotreatment, in particular to a heavy oil hydrotreating process method and system. The heavy oil hydrotreating process method comprises the followingsteps: heavy oil raw materials pass through a fixed bed hydropretreating reaction zone and a fixed bed hydrotreating reaction zone which are arranged in series sequentially; generated oil obtained from the fixed bed hydrotreating reaction zone enters a fluidized bed hydrocracking reaction zone; after reaction effluent of the fluidized bed hydrocracking reaction zone is separated, dry gas, liquefied gas, naphtha, diesel oil, wax oil and unconverted oil are obtained. With adoption of the heavy oil hydrotreating method, the operation period of a heavy oil hydrotreating device can be greatly prolonged.

Description

technical field [0001] The invention relates to a treatment method for lightening heavy oil, in particular to a method and a treatment system for treating heavy oil with a hydrogenation process. 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 economical and reasonable cost has become the focus of domestic and foreign refining industries. [0...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G65/02
CPCC10G65/02C10G2300/205C10G2400/04
Inventor 刘铁斌耿新国翁延博李洪广
Owner CHINA PETROLEUM & CHEM CORP
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