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Desulfurization device for petroleum cracking gasified substance

A petroleum cracking and desulfurization device technology, applied in gas treatment, chemical instruments and methods, membrane technology, etc., can solve the problems of large consumption of absorbent by alkali washing method and incomplete desulfurization by alcohol amine method, so as to avoid incomplete desulfurization. , the effect of saving costs and reducing consumption

Inactive Publication Date: 2020-06-26
DONGYING LIANHE PETROCHEMICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the contradictory problems of high consumption of alkaline washing absorbent and incomplete alcohol amine desulfurization in the desulfurization process of the prior art, and provides a desulfurization device for petroleum cracking and gasification substances, which is realized through the following technical solutions:

Method used

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  • Desulfurization device for petroleum cracking gasified substance
  • Desulfurization device for petroleum cracking gasified substance
  • Desulfurization device for petroleum cracking gasified substance

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Embodiment

[0021] Such as Figure 1-Figure 4 As shown, it is a kind of petroleum cracking gasification material desulfurization device disclosed by the present invention, which comprises a first desulfurization tower 1 and a second desulfurization tower 2, and absorbent 3 is filled in the first desulfurization tower 1 and second desulfurization tower 2, The first desulfurization tower 1 is communicated with the second desulfurization tower 2. The first desulfurization tower 1 includes a first tower body 4 and a reverse reaction tower 5. The upper end of the first tower body 4 is provided with an air inlet 41. The bottom of the first tower body 4 is connected to the first tower body 4. The reverse reaction tower 5 communicates with the first one-way solenoid valve 8 through the first one-way pump 7, the first desulfurization layer 42 is arranged inside the first tower body 4, the second desulfurization layer 21 is arranged inside the second desulfurization tower 2, and the first The desul...

specific Embodiment approach

[0025] Petroleum cracking and gasification substances enter the first tower body 4 through the air inlet 41, and the fourth one-way pump 13 pumps the ethanolamine absorbent 3 in the absorbent tower body 52 into the first desulfurization layer 42, and the ethanolamine absorbent 3 passes through The spray port 6 on the first desulfurization layer 42 is sprayed into the inner cavity of the first tower body 4 to react with the impurities of the petroleum cracking and gasification substances;

[0026] The first one-way solenoid valve 8 is opened, and the first one-way pump 7 pumps the reacted ethanolamine absorbent 3 into the reaction tower body 51, and the temperature sensor and pressure sensor detect the reaction temperature of the reaction tower body 51 and control the heating layer and compression The gas source 54 heats and / or pressurizes the reaction tower body 51 to ensure that the reaction conditions in the reaction tower body 51 are suitable. When the pH sensor detects that...

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Abstract

The invention relates to a desulfurization device for petroleum cracking gasified substances. The invention belongs to the technical field of petroleum cracking gas treatment. The device comprises a first desulfurization tower and a second desulfurization tower, wherein absorbents are contained in the first desulfurization tower and the second desulfurization tower; the first desulfurization toweris communicated with the second desulfurization tower; the first desulfurization tower comprises a first tower body and a reverse reaction tower; a gas inlet is formed in the upper end of the first tower body; the bottom of the first tower body is communicated with the reverse reaction tower through a first one-way pump and a first one-way electromagnetic valve; a first desulfurization layer is arranged in the first tower body, a second desulfurization layer is arranged in the second desulfurization tower, the first desulfurization layer and the second desulfurization layer are U-shaped bentpipes and are provided with spraying openings, an absorbent in the first desulfurization tower is ethanolamine, and an absorbent in the second desulfurization tower is sodium hydroxide. The main reaction in the petroleum cracking gasified substance is carried out in the first desulfurization tower, and the second desulfurization tower removes residual sulfur impurities, so that the consumption ofthe sodium hydroxide absorbent is reduced, the cost is saved, and meanwhile, incomplete desulfurization of the petroleum cracking gasified substance is avoided.

Description

technical field [0001] The invention relates to the technical field of petroleum cracking gas treatment, in particular to a petroleum cracking gasification material desulfurization device. Background technique [0002] In the process of petrochemical production, petroleum fractionation products are often used as raw materials, and higher temperatures than cracking are used to break the hydrocarbons with long-chain molecules into various short-chain gaseous hydrocarbons and a small amount of liquid hydrocarbons to provide organic chemical raw materials . This method is called petroleum cracking in the industry, and cracking is a deeper cracking to obtain short-chain unsaturated hydrocarbons as the main component of petroleum processing. Petroleum cracking gas contains hydrogen sulfide, part of hydrogen sulfide is brought by the cracking raw material, and the other part is produced by the hydrogenolysis reaction of organic sulfide contained in the cracking raw material with h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/18B01D53/14B01D53/78B01D53/48
CPCB01D53/18B01D53/1468B01D53/78B01D53/48B01D2252/20484B01D2251/304B01D2251/604B01D2258/02
Inventor 齐世森马海峰李云霄刘大禄任治义
Owner DONGYING LIANHE PETROCHEMICAL CO LTD