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

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 ...

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

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