Method and device for preparing fuel oil by utilizing solar energy to crack waste plastics

A technology for waste plastics and fuel oil, applied in the petroleum industry, preparation of liquid hydrocarbon mixtures, etc., can solve the problems of environmental pollution, large energy consumption, destruction, etc., and achieve the effect of reducing production costs, reducing harm, and reducing environmental pollution

Inactive Publication Date: 2012-06-27
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The traditional method of using waste plastics to refine fuel oil generally consumes a lot of energy, which is obtained by burning carbon, hydrocarbons or consuming electricity, which not only has high production costs, but also greatly intensifies the use of these energy sources. Environmental damage, serious environmental pollution

Method used

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  • Method and device for preparing fuel oil by utilizing solar energy to crack waste plastics
  • Method and device for preparing fuel oil by utilizing solar energy to crack waste plastics
  • Method and device for preparing fuel oil by utilizing solar energy to crack waste plastics

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Embodiment 1

[0030] Such as figure 1 As shown, the present embodiment utilizes the device of solar energy pyrolysis waste and old plastics to make fuel oil, comprises pyrolysis furnace 1, 200 solar concentrating mirrors 10, high-temperature heat pipe 9 and fractionation tower 3; The lower end of cracking furnace 1, high-temperature heat pipe 9 is positioned at the focal point of solar concentrator 3; Cracking furnace 1 is connected with the input port of check valve 2, fractionating tower 3 successively by pipeline; Described fractionating tower 3 is provided with two output ports, One of the output ports is connected to the fuel oil outlet 5 through the cut-off valve 4, and the other output port is the tail gas outlet 7, and the tail gas treatment device 6 equipped with activated carbon is arranged on the tail gas outlet 7. The area of ​​the solar concentrator is 0.1m 2 ~2m 2 They are arranged around the cracking furnace in sequence.

[0031] Such as figure 2 Shown, the present embod...

Embodiment 2

[0037] This embodiment utilizes the device of solar energy cracking waste plastics to make fuel oil, comprising cracking furnace, 100,000 solar concentrating mirrors, high-temperature heat pipes and fractionation towers; Located on the focal point of the solar concentrator; the cracking furnace is connected with the check valve and the input port of the fractionation tower in turn through the pipeline; the fractionation tower is provided with two output ports, one of which is connected to the fuel oil outlet through a shut-off valve, and the other The output port is the tail gas outlet, and the tail gas treatment device equipped with activated carbon is arranged on the tail gas outlet. The area of ​​the solar concentrator is 0.1m 2 ~2m 2 They are arranged around the cracking furnace in sequence.

[0038] The present embodiment utilizes the method for solar energy pyrolysis waste and old plastics fuel oil, comprises the following steps:

[0039] (1) 1.5 tons of waste plastic...

Embodiment 3

[0044] This embodiment utilizes the device of solar energy cracking waste plastics to make fuel oil, comprises cracking furnace, solar concentrator, high-temperature heat pipe and fractionation tower; A plurality of high-temperature heat pipes with an outer diameter of 47 mm are evenly arranged at the lower end of the cracking furnace, and the high-temperature heat pipe is located at the solar concentrator on the focal point; the cracking furnace is connected with the check valve and the input port of the fractionation tower successively through the pipeline; the fractionation tower is provided with two output ports, wherein one output port is connected to the fuel oil outlet by a shut-off valve, and the other output port is The tail gas outlet is equipped with a tail gas treatment device equipped with activated carbon. In the present embodiment, the solar concentrator is a dish-shaped solar concentrator with an area of ​​9m 2 .

[0045] The method that the present invention ...

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Abstract

The invention discloses a method for preparing fuel oil by utilizing solar energy to crack waste plastics, which comprises the following steps of: (1) putting the waste plastics in a cracking furnace; (2) converging sunlight to a high-temperature heat pipe located under the cracking furnace through a solar energy converging lens, converting the solar energy into heat energy through the high-temperature heat pipe, and heating the waste plastics in the cracking furnace; (3) cracking and vaporizing the waste plastics in the cracking furnace to obtain a mixture of the fuel oil; and (4) separating the mixture of the fuel oil through a separator to obtain the fuel oil, and exhausting tail gas simultaneously. The invention also discloses a device for preparing the fuel oil by utilizing the solar energy to crack the waste plastics for realizing the method. Compared with the prior art, not only is the production cost reduced, but also the environment pollution is reduced.

Description

technical field [0001] The invention relates to a method and a device for making fuel oil from waste plastics, in particular to a method and a device for using solar energy to crack waste plastics to make fuel oil. Background technique [0002] Plastic has penetrated into every aspect of our lives, and modern life is unimaginable without it. However, the pollution problem of waste plastics has become increasingly serious. How to effectively use, recycle and utilize waste plastics has important practical significance for my country's environmental protection and the future development of the plastics industry. There are many foreign research papers and patents on the recycling methods of plastics, and there are already medium and small factories coming out. Research in this area started relatively late in my country, but the research on various recycling methods is becoming more and more mature. Among them, catalytic cracking method to prepare fuel oil is one of the main r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G1/00
Inventor 冯毅康继光
Owner SOUTH CHINA UNIV OF TECH
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