Heavy oil product treatment processing method

A technology for processing technology and oil products, which is applied in the field of combined process for processing heavy oil, and can solve problems such as the inability to fundamentally change the pressure drop growth trend of the pre-reactor and the unfavorable stable operation of the device.

Active Publication Date: 2017-05-24
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method alleviates the increase in pressure drop by changing the loads of each anti-feed, but cannot fundamentally change the growth trend of the pre-reactor pressure drop. From the point of view of actual indus

Method used

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  • Heavy oil product treatment processing method
  • Heavy oil product treatment processing method
  • Heavy oil product treatment processing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] The properties of the raw material A used in Example 1 are shown in Table 1. After mixing with hydrogen, it enters the hydrogenation pretreatment device for hydrogenation pretreatment. The reaction temperature is 377 °C and the volume space velocity is 0.4h. -1 , the reaction pressure is 16MPa, the oil produced by the reaction is separated to obtain light fraction and heavy fraction, and the cut point is 620°C. The heavy fraction is processed through a solvent deasphalting unit to obtain deasphalted oil and deoiled asphalt. The obtained deasphalted oil and light fraction, 50% of the catalytic cracking diesel and all the catalytic cracking heavy cycle oil of the catalytic cracking unit are sent to the hydrogenation pretreatment reaction zone. The total catalyst loading, feed properties and feed amount of the hydropretreatment reactor A, hydrogenation pretreatment reactor B, and hydrogenation pretreatment reactor C are exactly the same, and the hydrogenation pretreatment ...

Embodiment 2

[0079] In Example 2, the properties of the raw material B used are shown in Table 1. After mixing with hydrogen, it enters the hydrogenation pretreatment device for hydrogenation pretreatment reaction. The reaction temperature is 375°C and the volume space velocity is 0.40h. -1 , the reaction pressure is 16MPa, the oil produced by the reaction is separated to obtain light fraction and heavy fraction, and the cut point is 610°C. The obtained heavy fraction is processed through a solvent deasphalting unit to obtain deasphalted oil and deoiled asphalt. The deasphalted oil and light fraction, 30% of the catalytic cracking diesel and all the catalytic cracking heavy cycle oil of the catalytic cracking unit are sent to the hydropretreatment reaction zone. The total catalyst loading and feed properties of the hydrogenation pretreatment reactor A, hydrogenation pretreatment reactor B, and hydrogenation pretreatment reactor C are exactly the same, and the feed space velocity is differe...

Embodiment 3

[0081] In Example 3, raw materials A, B, and C were mixed with hydrogen and then entered into respective hydrogenation pretreatment devices for hydrogenation pretreatment. The reaction temperature was 380°C and the volume space velocity was 0.4h -1 , the reaction pressure is 16MPa, the oil produced by the reaction is separated to obtain light fraction and heavy fraction, and the cut point is 600°C. Then, the obtained heavy fraction is processed through a solvent deasphalting device to obtain deasphalted oil and deoiled asphalt. The hydrogenation pretreatment reactor A adopts the deasphalted oil of raw material A, the hydrogenation pretreatment reactor B adopts the deasphalted oil of raw material B, and the hydrogenation pretreatment reactor C adopts the deasphalted oil of raw material C. The feed amount of described hydrogenation pretreatment reactor A, hydrogenation pretreatment reactor B, hydrogenation pretreatment reactor C is the same, and described hydrogenation pretreatm...

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Abstract

The invention discloses a heavy oil product treatment processing method. The method comprises a hydrogenation pretreatment device, a solvent deasphalting device, a hydrogenation treatment device and a catalytic cracking device, wherein the hydrogenation treatment device comprises a hydrogenation pretreatment reaction area and a hydrogenation treatment reaction area; the processing method comprises the following steps: residual oil raw material generated oil is subjected to fractional distillation after being reacted through a hydrogenation pretreatment unit to obtain light fraction and heavy fraction, wherein the heavy fraction is treated after entering the solvent deasphalting device so as to obtain deasphalted oil and deoiled asphalt, and the light fraction orderly passes through the hydrogenation pretreatment reaction area and the hydrogenation treatment reaction area which are in series connection after mixing with the deasphalted oil and hydrogen; gas-liquid separation is performed on reaction effluent of the hydrogenation treatment reaction area, and a gas phase is recycled back to the hydrogenation pretreatment reaction area and/or the hydrogenation treatment reaction area; a liquid phase directly enters a catalytic cracking reaction area to perform catalytic cracking reaction, and effluent of the catalytic cracking reaction is separated to obtain dry gas, liquefied gas, catalytic-cracked gasoline fraction, catalytic-cracked diesel fraction, catalytic-cracked heavy cycle oil and catalytic-cracked oil slurry. The stable operation period of the device can be prolonged by use of the method disclosed by the invention.

Description

technical field [0001] The invention relates to a method for lightening heavy oil, in particular to a method for treating heavy oil with a combined 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. [0003] The main purpose of the residue o...

Claims

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Application Information

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IPC IPC(8): C10G69/00
CPCC10G69/00C10G2300/1037C10G2400/02C10G2400/04
Inventor 刘铁斌耿新国翁延博李洪广
Owner CHINA PETROLEUM & CHEM CORP
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