An ultrasonic quenching device capable of on-line decoking and its application

An ultrasonic and quenching technology, which is applied in cleaning methods and appliances, cleaning methods using liquids, chemical instruments and methods, etc., can solve problems affecting work efficiency, inability to achieve online regeneration, easy coking of pyrolysis quenchers, etc., and achieve extended operation The cycle and operation cycle are improved, and the effect is remarkable

Active Publication Date: 2022-01-07
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] For this reason, the technical problem to be solved by the present invention is to provide an ultrasonic quenching device capable of on-line decoking, so as to solve the problems in the prior art that the pyrolysis quencher is easy to coke and affects its work efficiency and cannot realize on-line regeneration;

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  • An ultrasonic quenching device capable of on-line decoking and its application
  • An ultrasonic quenching device capable of on-line decoking and its application
  • An ultrasonic quenching device capable of on-line decoking and its application

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Embodiment 1

[0035] like Figure 1-2 With the structure shown, the ultrasonic quencher device capable of decoking online according to the present invention includes a quencher body 1, and the interior of the quencher body 1 is provided with a plurality of tubes 7 for heat exchange of high-temperature pyrolysis products. Quenching; and between the outer wall 8 of the quencher body 1 of the quencher body 1 and the side wall of the tube pass 7, a shell pass 6 for containing the quenching medium is formed, and the high-temperature cracking product and the described high-temperature cracking product circulating in the tube pass 7 The quenching medium flowing in the shell side 6 performs heat exchange to realize quenching of the high-temperature cracking products. In the ultrasonic quenching device of the present invention, the quenching medium is water.

[0036] In the ultrasonic quenching device of the present invention, the tube-side material entering the tube-side 7 is a high-temperature cr...

Embodiment 2

[0049] The pyrolysis quenching process of the present invention is implemented with the ultrasonic quenching device that can be decoked online, and the high-temperature cracking reaction product enters through the sieve plate inlet of the ultrasonic distributor 5 and the sieve plate inlet of the tube pass 7 successively. In the quenching device, after quenching, the pyrolysis reaction product leaves the quencher through the outlet of the tube side 7 of the quencher, and hot water enters the quencher from the shell side 6 inlet of the quencher, and the hot water and the high-temperature cracking reaction product in the tube side Heat exchange, the hot water absorbs the heat of the high-temperature cracked gas and converts it into high-temperature and high-pressure steam, which leaves the quencher from the shell side outlet of the quencher, and the temperature of the high-temperature cracked gas in the tube side drops from about 800°C to about 550°C, and then enters into quenching...

Embodiment 3

[0051] The online decoking process described in the present invention is a regeneration process for the quench cooler, and the online decoking treatment is performed on the quench cooler with coke layer accumulated on the inner wall of the tube, that is, the ultrasonic quenching device capable of online decoking is implemented .

[0052]The on-line decoking process of the present invention is carried out by feeding hot water with a temperature of 30°C to 95°C into the tube side of the quench cooler. Hot water enters from the inlet of the quencher, first passes through the sieve plate of the ultrasonic distributor 5, and then enters the tube side of the quencher, leaves the quencher from the outlet of the tube side of the quencher, and the shell side of the quencher is simultaneously injected with 30°C Hot water at -95°C, try to make multiple tubes and shells experience ultrasonic action at the same time, the ultrasonic generator 2 converts electrical energy into mechanical ene...

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Abstract

The invention belongs to the technical field of petrochemical cracking, in particular relates to an ultrasonic quenching device capable of online decoking, and further discloses a cracking quenching process and an online decoking process performed by the ultrasonic quenching device. The ultrasonic quenching device of the present invention combines ultrasonic technology with quenching technology to form a combination device of ultrasonic and quenching device, which not only has the function of ordinary quenching cooler, but also uses ultrasonic technology to solve the problem of easy coking at the entrance of quenching equipment, and breaks through traditional quenching In order to avoid the disadvantages of only transporting gaseous materials, the hot water is introduced into the tube side of the quencher, and the ultrasonic distributor is used to efficiently transmit the ultrasonic wave to the coke layer of the tube side of the quencher. The hot water weakens the van der Waals force of the coke layer. The coke layer is gradually decomposed into particles and falls off, realizing online decoking treatment. It can be widely used in thermal cracking process of petrochemical industry.

Description

technical field [0001] The invention belongs to the technical field of petrochemical cracking, in particular relates to an ultrasonic quenching device capable of online decoking, and further discloses a cracking quenching process and an online decoking process performed by the ultrasonic quenching device. Background technique [0002] Pyrolysis, also known as pyrolysis, thermal cracking, thermal cracking or pyrolysis, refers to the process of thermal decomposition and condensation of organic compounds to produce products with different relative molecular masses. Pyrolysis has similarities with dry distillation and cracking reactions of alkanes, and both belong to thermal decomposition reactions. In industry, the cracking reaction can be used to synthesize chemical products, such as polyvinyl chloride (PVC) can be produced by cracking ethylene dichloride; in addition, it can also be used to convert biomass energy or waste into low-harm or usable substances, such as producing ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G9/00C10G9/16B08B9/032
CPCC10G9/002C10G9/00C10G9/16B08B9/032B08B2203/007
Inventor 王文彬孟宪谭王鹏郭岩锋贠建华张剑楚庆岩解洪梅
Owner CHINA PETROLEUM & CHEM CORP
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