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A nozzle for catalytic cracking test and its application

A technology for catalytic cracking and testing, applied in the direction of catalytic cracking, cracking, injection devices, etc., can solve the problem that it is impossible to simulate the injection, contact and reaction of various heavy diesel oils, and achieve simple structure, convenient use, and good operating flexibility Effect

Active Publication Date: 2021-01-01
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the catalytic cracking riser test device is used to simulate the blending of heavy diesel oil in industrial catalytic cracking units, because the existing feed nozzle can only spray out one kind of catalytic cracking raw material, it is impossible to simulate the contact and reaction of various heavy diesel oils with the catalyst

Method used

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  • A nozzle for catalytic cracking test and its application
  • A nozzle for catalytic cracking test and its application
  • A nozzle for catalytic cracking test and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] There are 4 hydrocarbon oil I outer spray holes 40 on the hydrocarbon oil I outer spray head 1 described in Example 1, arranged uniformly on the hydrocarbon oil I outer spray head 1, and the diameter of each spray hole is 1.0 mm.

[0071] One hydrocarbon oil I inner spray hole 41 is provided on the hydrocarbon oil I inner spray head 4 described in Example 1, and the diameter of the spray hole on the hydrocarbon oil I inner spray head 4 is 1.1 mm.

[0072] Four hydrocarbon oil II nozzle holes 42 on the hydrocarbon oil II nozzle 7 described in Example 1 are arranged evenly on the hydrocarbon oil II nozzle 7, and the diameter of each nozzle hole is 1.0 mm.

[0073] Four hydrocarbon oil III injection holes 43 on the hydrocarbon oil III nozzle 10 described in Example 1 are arranged evenly on the hydrocarbon oil III nozzle 10, and the diameter of each injection hole is 1.0 mm.

[0074] The distance D between the hydrocarbon oil I inner spray head 4 and the hydrocarbon oil I o...

Embodiment 2

[0093] There are three hydrocarbon oil I outer spray holes 40 on the hydrocarbon oil I outer spray head 1 described in Example 2, which are evenly arranged on the hydrocarbon oil I outer spray head 1, and the diameter of each spray hole is 1.1 mm.

[0094] One hydrocarbon oil I inner spray hole 41 is provided on the hydrocarbon oil I inner spray head 4 described in Example 2, and the diameter of the spray hole on the hydrocarbon oil I inner spray head 4 is 1.2 mm.

[0095] Four hydrocarbon oil II injection holes 42 on the hydrocarbon oil II nozzle 7 described in Example 2 are arranged uniformly on the hydrocarbon oil II nozzle 7, and the diameter of each injection hole is 1.1 mm.

[0096] Four hydrocarbon oil III injection holes 43 on the hydrocarbon oil III nozzle 10 described in Example 2 are arranged uniformly on the hydrocarbon oil III nozzle 10 , and the diameter of each injection hole is 1.1 mm.

[0097] The distance D between the hydrocarbon oil I inner spray head 4 and...

Embodiment 3

[0116] One hydrocarbon oil I outer spray hole 40 is provided on the hydrocarbon oil I outer spray head 1 described in Example 3, and the diameter of the spray hole on the hydrocarbon oil I outer spray head 1 is 2 mm.

[0117] One hydrocarbon oil I inner spray hole 41 is provided on the hydrocarbon oil I inner spray head 4 described in Example 3, and the diameter of the spray hole on the hydrocarbon oil I inner spray head 4 is 1.3 mm.

[0118] Six hydrocarbon oil II injection holes 42 on the hydrocarbon oil II nozzle 7 described in Example 3 are arranged evenly on the hydrocarbon oil II nozzle 7, and the diameter of each injection hole is 0.9 mm.

[0119] Six hydrocarbon oil III injection holes 43 are provided on the hydrocarbon oil III nozzle 10 described in Example 3, arranged uniformly on the hydrocarbon oil III nozzle 10, and each injection hole has a diameter of 0.9 mm.

[0120] The distance D between the hydrocarbon oil I inner spray head 4 and the hydrocarbon oil I outer...

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Abstract

The invention relates to a spray nozzle for a catalytic cracking experiment and an application. The spray nozzle can simultaneously spray three raw materials and comprises a hydrocarbon oil I outer sleeve pipe, a hydrocarbon oil I inner sleeve pipe, a hydrocarbon oil I outer spray head, a hydrocarbon oil I inner spray head, a hydrocarbon oil II sleeve pipe, a hydrocarbon oil III sleeve pipe, a steam chamber, a hydrocarbon oil I and steam mixing chamber, a hydrocarbon oil II spray head, a hydrocarbon oil III spray head, a hydrocarbon oil II circular atomizing chamber and a hydrocarbon oil III circular atomizing chamber. According to the invention ,through arrangement of the hydrocarbon oil II circular atomizing chamber and the hydrocarbon oil III circular atomizing chamber on the spray nozzle, the spray nozzle provided by the invention can simultaneously spray three raw materials, and can be used for an experimental for experimental study of simultaneous contact and reaction of different catalytic raw materials with a catalyst; and light hydrocarbons sprayed by the hydrocarbon oil II spray head and the hydrocarbon oil III spray head preferentially contact with the catalyst for a reaction to generate a large amount of carbonium ions, so conversion of heavy hydrocarbons is accelerated, and the spray nozzle provided by the invention has the characteristics of increasing the yield of liquefied gas, gasoline and low-carbon olefins and improving total liquid yield and conversion rate.

Description

technical field [0001] The invention relates to a catalytic cracking conversion device for petroleum hydrocarbons, in particular to a feed nozzle for catalytic cracking test and its application. Background technique [0002] As the main light oil production process in the oil refining industry, catalytic cracking has attracted extensive attention from major research and development institutions at home and abroad because of its wide applicability and relatively low processing cost. Catalytic cracking provides 75% of gasoline components and 32% of propylene components in my country's commercial gasoline pool, and plays a pivotal role in refineries. In the catalytic cracking process and catalyst research and development process, the catalytic cracking riser test device is used in the screening of catalytic cracking catalyst formula, the cracking performance of catalytic raw materials and the investigation of product properties, the evaluation of catalytic cracking catalyst, th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G11/00B05B1/14B05B7/06
CPCB05B1/14B05B7/061C10G11/00C10G2300/1037C10G2400/02
Inventor 王智峰侯凯军高永福张忠东陈小龙孟凡芳王宝杰田爱珍李荻刘涛刘超伟
Owner PETROCHINA CO LTD
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