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Quick flocculator in fluid catalytic cracking slurry sedimentation tank and manufacturing method

A technology of catalytic cracking oil slurry and flocculator, which is applied in the direction of chemical instruments and methods, settling tanks, separation methods, etc., to achieve good economic benefits, reduce investment, and improve the effect of sedimentation and separation

Active Publication Date: 2018-11-23
SHENZHEN KELADA FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, how to apply enhanced flocculation technology to further improve the effect and efficiency (speed) of the chemical auxiliary sedimentation method to purify and treat the oil slurry, before the application of the present invention, there is no method identical or similar to the present invention to realize

Method used

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  • Quick flocculator in fluid catalytic cracking slurry sedimentation tank and manufacturing method
  • Quick flocculator in fluid catalytic cracking slurry sedimentation tank and manufacturing method
  • Quick flocculator in fluid catalytic cracking slurry sedimentation tank and manufacturing method

Examples

Experimental program
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Effect test

Embodiment 1

[0094] Such as Figure 1-5 As shown, this embodiment provides a fast flocculator for use in a sedimentation tank of a catalytic cracking oil slurry, which includes a working cavity (that is, the flocculator body) and a draft tube 2. The working cavity is a hollow cone 1, so The cone 1 includes a side panel and a bottom panel. A number of notches are cut along the edge of the bottom panel as the flocculator discharge port 3, and a circular hole is cut with the center of the bottom panel as the guide tube insertion port. The guide tube 2 is a hollow pipe. The tail end of the pipeline is cut with a number of grooves along the pipe wall. The tail end of the guide tube 1 passes through the guide tube insertion port and then welds to the inner wall of the side panel. The groove is at the top of the inner side of the cone 1 and serves as the flocculator feed port 4.

[0095] Preferably, the axial section of the cone 1 is an isosceles triangle with a top angle θ of 90°, and the included...

Embodiment 2

[0102] This example provides a set of basic parameters for designing the fast flocculator in the FCC slurry sedimentation tank:

[0103] A. Residence time, the residence time T of the oil slurry in the working cavity is 3-10 seconds, preferably 5 seconds;

[0104] B. The feed flow rate of the flocculator, the flow rate of the oil slurry into the flocculator 1 Use 1-2.5 m / s, preferably 1 m / s;

[0105] C. The flow rate of the flocculator, the flow rate of the oil slurry out of the flocculator v 2 1-3.5 m / sec, preferably 2.5 m / sec;

[0106] D. The treatment capacity of the flocculator, the treatment capacity Q under actual application conditions, in meters 3 / second.

[0107] Where T, v 1 , V 2 In specific applications, it is pre-selected according to actual working conditions and requirements, and Q is the processing capacity under actual working conditions.

Embodiment 3

[0109] On the basis of the combination of Examples 1 and 2, the present invention also provides a method for manufacturing a fast flocculator used in a sedimentation tank for catalytic cracking oil slurry:

[0110] Step 1. Calculate the overall dimensions of the flocculator: Based on the treatment capacity Q and residence time T of the flocculator, calculate the bus length L of the cone 1 And the radius of the bottom panel R 1 .

[0111] Step 2: Calculate the flow area of ​​the flocculator's feed inlet: the flow area of ​​the flocculator's feed inlet is the flow area of ​​the draft tube oil slurry into the working chamber, and the flocculator's feed flow rate v 1 And the processing capacity Q of the flocculator is calculated based on the flow area S of the flocculator inlet 1 .

[0112] Step 3. Calculate the flow area of ​​the flocculator outlet: the flow area of ​​the flocculator outlet is the flow area of ​​the oil slurry in the working chamber entering the settling tank, and the fl...

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Abstract

The invention provides a quick flocculator in a fluid catalytic cracking slurry sedimentation tank and a manufacturing method. The quick flocculator comprises a work cavity and a flow guiding pipe, wherein the work cavity is of a hollow conical body, the conical body comprises a lateral panel and a bottom panel, a plurality of notches which are cut at the edge of the bottom panel are served as flocculator discharging openings, a round hole which is cut with the circle center of the bottom panel as the center is utilized as a flow guiding pipe inserting opening, the flow guiding pipe is a hollow pipeline, a plurality of grooves are cut at the tail end of the pipeline along a pipe wall, the tail end of the flow guiding pipe penetrates through the flow guiding pipe inserting opening to be welded to an inner wall of the lateral panel, and the grooves are arranged at the top of the inner side of the conical body and are utilized as flocculator feeding openings. The invention further provides the manufacturing method. The quick flocculator disclosed by the invention provides a good gathering and flocculating environment for catalyst particles and is favorable for improving a settling separation effect and the settling separation efficiency (speed) between the catalyst particles and slurry oil.

Description

Technical field [0001] The present invention relates to the field of petrochemical industry, in particular to a fast flocculator used in a settling tank for catalytic cracking oil slurry and a manufacturing method, more specifically, it is developed based on the related theories of mass transfer kinetics, thermodynamics and coagulation kinetics A kind of small equipment that can accelerate the aggregation and flocculation of unstable catalyst particles in the catalytic cracking oil slurry, and is installed in the settling tank. Background technique [0002] Slurry is a by-product of catalytic cracking (FCC), rich in gums and asphaltenes, and has the characteristics of high viscosity and high density. FCC slurry has good economic value, but since it contains 0.2-0.9% of catalyst powder with a diameter of less than 80 μm (micrometer), purification must be carried out in order to use the slurry on an economic scale and value-added. [0003] There are roughly the following techniques ...

Claims

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Application Information

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IPC IPC(8): B01D21/08B01D21/26C10G31/00
CPCB01D21/0003B01D21/08B01D21/267C10G31/00
Inventor 段征宇蒋小明雷电
Owner SHENZHEN KELADA FINE CHEM CO LTD
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