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Method for removing coke powder in raw oil and device thereof

A raw material oil and coke powder technology, which is applied in the field of petroleum processing and clean production, can solve the problems of large equipment investment, inability to operate for a long period, and high operating costs

Active Publication Date: 2009-06-03
SHANGHAI HUACHANG ENVIRONMENT PROTECTION +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention adopts the swirling flow separation technology as the core and the method combined with other separation technologies to remove the coke powder in the raw material oil, and develops a new swirl flow decoking powder method of the raw material oil, which overcomes the existing domestic and foreign Gravity settling tanks, filters and other devices for coke powder processing have defects such as large investment, complicated operation, high operating cost, and inability to operate for a long period of time, thus solving the problems existing in the prior art

Method used

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  • Method for removing coke powder in raw oil and device thereof
  • Method for removing coke powder in raw oil and device thereof
  • Method for removing coke powder in raw oil and device thereof

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Embodiment

[0058] The present invention is further described below in conjunction with specific examples. However, it should be understood that these examples are only used to illustrate the present invention and not to limit the scope of the present invention. The test methods for which specific conditions are not indicated in the following examples are generally in accordance with conventional conditions, or in accordance with the conditions suggested by the manufacturer. All percentages and parts are by weight unless otherwise indicated.

[0059] PetroChina Dushanzi Petrochemical 10 million tons / year refinery 800,000 tons coke powder separation device

[0060] See the following table 1-2 for fluid properties:

[0061] Table 1, raw material composition and properties

[0062] Raw material type coker gasoline Coker diesel catalytic diesel Simulate Mixed Raw Materials Density at 20°C, g / m 3 0.72 0.84 0.8777 0.8201 Sulfur content, ppm wt 2654 4876 73...

Embodiment approach

[0066] The 800,000 tons / year Dushanzi catalyzed diesel raw material oil was treated by cyclone separation and gravity sedimentation. First, the raw material oil is processed through the raw material oil decoking powder cyclone, and the purified raw material oil that overflows is sent to the follow-up device; the coke-containing powder and dirty oil that flows out from the bottom is sent to the settling tank for further treatment, and the raw material oil that is partially separated by the settling tank Go directly to the follow-up device, and the dirty oil enriched with coke powder after concentration is extracted out through the frequency conversion dirty oil pump 23. See the process flow image 3 . Process description:

[0067] (a) The coke powder separator 21 separates the raw material into a coke powder phase and an oil phase. The pressure drop between the outlet and the inlet of the oil phase is not more than 0.15MPa, and the pressure drop between the outlet and the in...

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Abstract

The invention relates to a method for removing coke powder from raw oil and a device thereof and provides the method for removing the coke powder from the raw oil. The method comprises the following steps: cyclone separation is carried out on the raw oil containing the coke powder at the temperature of 40-600 DEG C to obtain the purified raw oil and sump oil containing the coke powder; and the sump oil containing the coke powder is deposited or filtered to obtain further recycled concentrated sump oil rich in coke powder. The invention also provides the device for removing the coke powder from the raw oil.

Description

technical field [0001] The invention belongs to the technical field of petroleum processing and clean production, and relates to a method for processing raw oil containing coke powder, in particular to a method for processing coked gasoline, diesel oil, and wax oil containing coke powder in the delayed coking production process of petrochemical industry , and the apparatus used for carrying out the method. Background technique [0002] Delayed coking is an important process for lightening heavy oil in the secondary processing of petroleum in refineries. The coking products of this process—coked gasoline, coked diesel oil and coked wax oil, etc. contain coke powder due to the characteristics of delayed coking. These coke powders are deposited on the surface of the refined catalyst after entering the subsequent refining device with the coking feedstock oil, thereby increasing the pressure drop of the catalyst bed, bridging and drifting in the catalyst bed, and finally leading ...

Claims

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Application Information

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IPC IPC(8): C10G31/00
Inventor 汪华林师敬伟张帆杨强汤尔林钱卓群
Owner SHANGHAI HUACHANG ENVIRONMENT PROTECTION
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