Low-temperature industrial continuous catalytic cracking method and equipment for waste organic polymer material

A technology of organic polymers and polymer materials, which is applied in the field of low-temperature industrial continuous catalytic cracking of waste organic polymer materials, and can solve the problems of slow stirring speed, poor jacket cooling effect, poor stirring uniformity, etc.

Active Publication Date: 2020-12-04
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The utility model solves the problems of small contact area between the existing polyurethane resin stirring device and the material, slow stirring speed, poor stirring uniformity, slow temperature diffusion of the reaction material, low stirring efficiency and poor cooling effect of the jacket of the reactor itself.
A waste plastic pyrolysis equipment CN209602459U involves three stages of waste plastic pyrolysis, but the three stages of pyrolysis are mainly defined as preheating and harmful gas discharge sections according to the form of pyrolysis materials, and the main pyrolysis generation stage and complete pyrolysis stage are not considered. Intrinsic relationship among pyrolysis raw materials, pyrolysis temperature and pyrolysis products

Method used

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  • Low-temperature industrial continuous catalytic cracking method and equipment for waste organic polymer material
  • Low-temperature industrial continuous catalytic cracking method and equipment for waste organic polymer material
  • Low-temperature industrial continuous catalytic cracking method and equipment for waste organic polymer material

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Embodiment 1

[0103] Such as Figure 1-13 Shown, a kind of low-temperature industrial continuous catalytic cracking method of waste organic polymer materials, comprises the following steps:

[0104] (1) Pre-treatment of waste organic polymer materials: waste organic polymer materials are screened out of other inorganic impurities such as stones and iron filings through winnowing, crushing and other processes;

[0105] (2) Dehydration and drying of waste organic polymer materials: The waste organic polymer materials that have been preliminarily screened are dehydrated and dried to reduce the impact of moisture in the materials on the quality of cracking products; this step is mainly through two special extruders in different Efficient dehydration and drying under process parameters.

[0106] Among them, the process includes a low-temperature high-efficiency dehydration process and a dry feed process;

[0107] Low-temperature and high-efficiency dehydration process: This process is mainly c...

Embodiment 2

[0180] The present invention also relates to a process for preparing chemical raw materials through low-temperature industrial continuous catalytic cracking of waste tires, which comprises the following steps:

[0181] (1) The waste tires recovered from the waste recycling plant are continuously transported into the crushing system through the conveyor belt, and then crushed into rubber blocks of a certain size;

[0182] (2) the rubber block after the splitting enters in the cracking reaction furnace through the drying system;

[0183] (3) The waste plastics that enter cracking reactor crack small molecular organic additive components in primary cracking reactor 2-1, crack components such as natural rubber, styrene-butadiene rubber in secondary cracking reactor 2-2, In the three-stage cracking reactor 2-3, the components with high cracking temperature such as cracking collection are cracked, and the oil and gas produced are collected by the subsequent tanks of each reactor aft...

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Abstract

The invention discloses a low-temperature industrial continuous catalytic cracking method and equipment for a waste organic polymer material. The method comprises the following steps: 1) carrying outearlier-stage treatment on a waste organic polymer material, 2) dehydrating and drying the waste organic polymer material, 3) carrying out a sectional catalytic cracking process on the waste high polymer material, 4) condensing and collecting cracking gas, 5) driving the melt material to move through an anti-coking heat-conducting medium, so that the heat and mass transfer effect is enhanced, 6) continuously discharging the pyrolysis carbon, 7) by non-condensable combustible gas generated by cracking supplies, heating the third-stage cracking reactor, 8) dividing the high-temperature flue gasinto three parts to be recycled, and discharging redundant parts through a tail gas treatment device, and 9) discharging tail gas. According to the invention, graded cracking of mixed waste organic polymer materials can be realized, cracked oil products are respectively recycled according to different decomposition temperatures of all the components, the maximum economic benefit of cracking products is realized, and the equipment is reasonable in structural design, can improve the production efficiency and realizes automatic production.

Description

technical field [0001] The invention belongs to the technical field of solid waste recycling, in particular waste rubber, waste plastics and other polymer compound wastes, and specifically relates to a low-temperature industrial continuous catalytic cracking method and equipment for waste organic polymer materials. Background technique [0002] At present, waste organic polymer materials refer to organic polymer materials such as waste plastics, waste rubber, oil sludge, coal tar, etc. With the rapid development of my country's economy, a large number of waste organic polymer materials are generated every year. Taking rubber and plastics as an example, according to statistics, the consumption of rubber and plastics in 2017 was about 13 million tons and 77 million tons respectively, and a large amount of waste rubber and plastics were produced at the same time. In 2017 alone, there were more than 300 million waste tires (12 million tons) and 25 million tons of waste plastics ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B53/07C10B57/08C10B57/10C10B49/02B01D53/78B01D53/50B01D53/52B01D53/86B01D53/72
CPCC10B53/07C10B57/08C10B57/10C10B49/02B01D53/78B01D53/50B01D53/52B01D53/8668B01D2258/0283B01D2255/802Y02P20/143
Inventor 汪传生田晓龙边慧光郝国强郭磊沈波李绍明陈宏波张德伟
Owner QINGDAO UNIV OF SCI & TECH
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