Ultrasonic quenching device capable of online decoking and application thereof

An ultrasonic and quenching technology, which is applied to cleaning methods and appliances, cleaning methods using liquids, cleaning hollow objects, etc., can solve problems such as easy coking of pyrolysis quench coolers, affecting work efficiency, and inability to realize online regeneration, etc., and achieve an increase in operating cycle , prolong the operation cycle, the effect is remarkable

Active Publication Date: 2020-04-28
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;

Method used

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  • Ultrasonic quenching device capable of online decoking and application thereof
  • Ultrasonic quenching device capable of online decoking and application thereof
  • Ultrasonic quenching device capable of online decoking and application thereof

Examples

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Embodiment 1

[0035] Such as Figure 1-2 As shown in the structure, the ultrasonic quencher device capable of online decoking according to the present invention includes a quencher body 1, and a plurality of tube passes 7 are arranged inside the quencher body 1 for heat exchange of high-temperature cracking products. Quenching; and between the quencher outer wall 8 of the quencher body 1 and the side wall of the tube pass 7 forms a shell side 6 containing the quenching medium, and the high-temperature pyrolysis product circulating in the tube side 7 and the The quenching medium flowing in the shell side 6 performs heat exchange to realize the quenching of the high-temperature cracking product. In the ultrasonic quenching device of the present invention, the quenching medium is water.

[0036] In the ultrasonic quencher device of the present invention, the pipe-side material entering the pipe-side 7 is the high-temperature cracked product after reaction, mainly including ethylene, propylene, a...

Embodiment 2

[0049] The cracking quenching process of the present invention is implemented by the ultrasonic quenching device capable of on-line decoking, and the high-temperature cracking reaction product enters through the sieve inlet of the ultrasonic distributor 5 and the sieve inlet of the tube pass 7 sequentially In the quenching device, after quenching, the cracking reaction product leaves the quenching device through the exit of the tube pass 7 of the quenching device. The hot water enters the quenching device from the inlet of the shell side 6 of the quenching device. The hot water and the high temperature cracking reaction product in the tube pass Heat exchange, the hot water absorbs the heat of the high-temperature pyrolysis gas and converts it into high-temperature and high-pressure steam, which leaves the quencher at the exit of the shell side of the quencher. The high-temperature material at the entrance of the tube pass of the device and the low-temperature material entering t...

Embodiment 3

[0051] The online decoking process of the present invention is a regeneration process of the quencher. The quencher with a coking layer on the inner wall of the tube side is subjected to online decoking treatment, 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 passing hot water with a temperature of 30°C to 95°C through the tube side of the quencher. The hot water enters from the inlet of the quench cooler, first passes through the sieve plate of the ultrasonic distributor 5, and then enters the tube pass of the quench cooler. It leaves the quench cooler from the tube pass exit of the quench cooler, and the shell pass of the quench cooler flows into 30℃ at the same time. -95℃ hot water, as far as possible to allow multiple tube passes and shell passes to experience ultrasonic action at the same time. The ultrasonic generator 2 converts electrical energy into mech...

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Abstract

The invention belongs to the technical field of petrochemical cracking, particularly relates to an ultrasonic quenching device capable of performing online decoking, and further discloses a cracking quenching process and an online decoking process carried out by utilizing the ultrasonic quenching device. According to the ultrasonic quenching device disclosed by the invention, an ultrasonic wave technology and a quenching technology are combined to form an ultrasonic wave and quenching device combined device, so that the combined device has the functions of the common quenching device, the problem that the inlet of quenching equipment is easy to coke is solved by utilizing the ultrasonic wave technology, and the defect that the traditional quenching device only conveys gas materials is overcome; and hot water is introduced into the quenching device tube pass, ultrasonic waves are efficiently conducted to the coke layer of the quenching device tube pass through an arranged ultrasonic distributor, the Van der Waals' force of the coke layer is weakened through the hot water, and the coke layer is gradually decomposed into particles and falls off, so that online decoking treatment is achieved. The device can be widely applied to petrochemical thermal cracking processes.

Description

Technical field [0001] The invention belongs to the field of petrochemical cracking technology, and specifically 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 high-temperature cracking, refers to the process of thermal decomposition and condensation of organic compounds to produce products with different relative molecular masses. Cracking is similar to dry distillation and the cracking reaction of alkanes, which are all thermal decomposition reactions. Industrially, the cracking reaction can be used to synthesize chemical products. For example, the cracking of ethylene dichloride can generate polyvinyl chloride (PVC); in addition, it can also be used to convert biomass energy or waste into low-hazard or usable substances, such ...

Claims

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Application Information

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Patent Type & Authority Applications(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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