An online carbon determination system for catalysts in a fluidized bed device, its online carbon determination evaluation method, and a fluidized bed device

A catalyst and fluidized bed technology, which is applied in the field of petrochemical engineering development, can solve the problems of decreased guiding significance, asynchronous analysis, and low efficiency of carbon determination analysis, and achieves the effect of strong practicability and improved analysis rate.

Active Publication Date: 2021-12-17
SINOPEC LUOYANG TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the catalyst of the existing fluidized bed reactor can only obtain its state information based on experience or intermittent analysis of catalyst samples taken from the device, and the efficiency of carbon determination analysis is low and the analysis is not synchronized.
Due to the lag of the data results, its guiding significance for judging the operation of the device and the reaction state is reduced, and it is often judged when the catalyst is obviously deactivated

Method used

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  • An online carbon determination system for catalysts in a fluidized bed device, its online carbon determination evaluation method, and a fluidized bed device

Examples

Experimental program
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Effect test

no. 1 example

[0049] Please refer to the attached figure 1 , the present embodiment provides an online carbon determination system 10 for fluidized bed catalyst, which includes:

[0050] The first catalyst delivery pipe 101, the coke measurement reactor 107, the coke flue gas delivery pipe 120, the flue gas analyzer 121, the catalyst discharge pipe 110, the second catalyst delivery pipe 109, the gas delivery pipe 111, the flue gas discharge Tube 122 and catalyst dosing device. The online carbon determination system 10 can detect the amount of carbon deposited on the catalyst in the fluidized bed device 200 online and in real time, so as to determine the activity state of the catalyst in the fluidized bed device 200 .

[0051] Further, the discharge end of the first catalyst delivery pipe 101 is connected to the coking measurement reactor 107, and the feed end of the first catalyst delivery pipe 101 is used to connect with the catalyst discharge end of the fluidized bed device 200; The gas...

no. 2 example

[0067] This embodiment provides a fluidized bed device 200, which includes a fluidized bed device and the online carbon determination system 10 provided in the first embodiment, please refer to the attached figure 1 , figure 1 The arrows in are the flow direction of the catalyst or the flow direction of the flue gas.

[0068]Specifically, the fluidized bed device includes a reactor 201 and a regenerator 203 , and an online carbon determination system 10 is provided between the reactor 201 and the regenerator 203 . The feed end of the first catalyst delivery pipe 101 of the online carbon determination system 10 is connected to the catalyst discharge end of the fluidized bed device 200, and the discharge end of the second catalyst delivery pipe 109 of the online carbon determination system 10 is connected to the fluidized bed device. The catalyst feed end of 200 is connected.

[0069] It should be noted that, in other embodiments, the fluidized bed device may also include a ca...

no. 3 example

[0072] This embodiment provides a method for online carbon determination evaluation using the fluidized bed device provided in the second embodiment, and the specific steps are as follows:

[0073] System preparation:

[0074] The data processing terminal 123 is turned on, and the flue gas analyzer 121 is preheated so that the flue gas analyzer enters and remains in a ready state. Heat the burnt measurement reactor 107 to 600° C. at a heating rate of 15° C. / min through the heating furnace and keep it at this temperature; open the nitrogen flowmeter on the nitrogen delivery pipe 113 in the gas delivery pipe 111 to purge the reaction test system;

[0075] Catalyst collection and filling:

[0076] The catalyst is delivered intermittently or regularly from the catalyst discharge end of the fluidized bed device 200 to the charred flue gas delivery pipe 120 through the first catalyst delivery pipe 101 of the online carbon determination system 10;

[0077] Catalyst Fluidization:

...

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Abstract

The invention relates to the technical field of petrochemical engineering development, and provides an online carbon determination system for catalysts in a fluidized bed device, which includes a first catalyst delivery pipe, a burnt measurement reactor, a burnt flue gas delivery pipe, and flue gas Analyzer. The carbon determination system can measure the carbon deposition amount of the catalyst in real time when the fluidized bed device is working continuously, and improve the analysis rate of the catalyst carbon determination, which is fast, convenient and practical. The embodiment of the present invention also provides a fluidized bed device, which includes the above-mentioned online carbon determination system, which can obtain the carbon deposition amount of the catalyst in real time to understand the active state of the catalyst, and improve the working efficiency of the fluidized bed device. In addition, the embodiments of the present invention also provide an online carbon determination evaluation method for catalysts in fluidized bed devices, which can quickly and real-time monitor the state of carbon deposition in catalysts.

Description

technical field [0001] The invention relates to the technical field of petrochemical engineering development, in particular to an online carbon determination system for catalysts in a fluidized bed device, an online carbon determination evaluation method thereof, and a fluidized bed device. Background technique [0002] The petrochemical industry is promoting the construction of intelligent factories, and the online intelligent detection system is an important link in the future refinery units. [0003] The fluidized bed reactor is a reactor that uses gas or liquid to pass through the granular solid layer to keep the solid particles in a suspended state, and conducts a gas-solid phase reaction process or a liquid-solid phase reaction process. It is equipped with a catalyst circulation and regeneration system , the catalyst circulates between the reactor and the regenerator. After the reaction, the catalyst containing carbon deposits is continuously regenerated in the regener...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J8/24G01N33/00
CPCB01J8/24G01N33/0004
Inventor 李治李静静李欣韩海波沈方峡刘林娇刘丹禾郝代军
Owner SINOPEC LUOYANG TECH CO LTD
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