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Ultrasonic quenching device and cracking quenching process

An ultrasonic and quenching technology, used in cracking, petroleum industry, non-catalytic thermal cracking, etc., can solve the problems of easy coking of cracking quenchers, affecting work efficiency, etc., to increase effective production time, prolong operation period, and increase economic benefits. Effect

Active Publication Date: 2020-04-28
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0009] Therefore, the technical problem to be solved by the present invention is to provide an ultrasonic quenching device to solve the problem in the prior art that the pyrolysis quencher is easy to coke and affects its working efficiency ;

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  • Ultrasonic quenching device and cracking quenching process

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experiment example

[0044] 1. Pilot test

[0045] In order to compare the effect of the sparger, an experimental verification was carried out on a cracking pilot plant, and a certain liquid ethylene raw material was cracked, and the following methods were used: Figure 1-2 The ultrasonic quenching device of the present invention (experimental group 1), the ordinary quenching device without ultrasonic waves (blank group) and the ultrasonic quenching device without distributor (comparative group 1) were evaluated experimentally.

[0046] The test process conditions are: pyrolysis reaction temperature 820°C, dilution ratio 0.5, residence time 0.32s, blank group, comparison group 1 and comparison group 2 used the same material and size of the quencher, and comparison group 1 did not connect the distribution The transducer is directly connected to the shell side by means of flange compression; the sparger used in comparison group 2 is a carbon steel structure with a thickness of 5mm, the sparger is a ...

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Abstract

The invention belongs to the technical field of petrochemical engineering cracking, and particularly relates to an ultrasonic quenching device and a cracking quenching process carried out by utilizingthe ultrasonic quenching device. The invention discloses the ultrasonic quenching device. On the basis of an existing quenching device structure, an ultrasonic generator, an ultrasonic transducer andan ultrasonic distributor which are connected in sequence are arranged on the outer wall of the quenching device; the ultrasonic generator is used for generating ultrasonic waves with uniform sound intensity; the ultrasonic energy is converted into mechanical energy through the ultrasonic transducer; and under the action of the ultrasonic distributor, ultrasonic waves are efficiently and uniformly conducted to the tube pass of the quenching device, and the electric polarization of the ultrasonic waves and the dispersion effect accompanied by the electric polarization of the ultrasonic waves are utilized, so that the gathering of coke in high-temperature materials can be effectively hindered, a coking layer on the tube wall on the inner side of the tube pass is reduced, and the heat transfer efficiency of the quenching device is improved.

Description

technical field [0001] The invention belongs to the technical field of petrochemical cracking, and in particular relates to an ultrasonic quenching device and a cracking quenching process carried out by using 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 synthetic gas. [0003] The cracking device is the core equipme...

Claims

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Application Information

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IPC IPC(8): C10G9/00
CPCC10G9/002C10G9/00
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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