Method for degrading polypropylene to efficiently produce hydrogen and light dydrocarbon through solar heat-electrical coupling

A solar thermal and polypropylene technology, applied in solar thermal power generation, solar thermal energy, solar thermal collectors, etc., can solve the problems of high cost and low usable value of products

Inactive Publication Date: 2018-09-28
NORTHEAST GASOLINEEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Aiming at the problems of high cost and low product availability in existing polypropylene degradation methods, the present invention pro

Method used

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  • Method for degrading polypropylene to efficiently produce hydrogen and light dydrocarbon through solar heat-electrical coupling
  • Method for degrading polypropylene to efficiently produce hydrogen and light dydrocarbon through solar heat-electrical coupling
  • Method for degrading polypropylene to efficiently produce hydrogen and light dydrocarbon through solar heat-electrical coupling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] (1) Preparation of the spiral electrode. A spiral electrode with a diameter of 1cm is made by winding a nickel wire with a diameter of 0.8mm, the number of winding turns is 10, the total length of the nickel wire is 26cm, and the external area is πdl=π×0.08cm×26cm=6.53cm 2 .

[0080] (2) Preparation of PP / KOH / NaOH mixed system. Dry polypropylene (type T30s) at 100°C for 5 minutes in an oven. Use an electronic balance to multiply 2.800g KOH, 0.5g polypropylene particles and 2.000g NaOH respectively. Put the weighed medicines into the corundum crucible in turn, so that the three are mixed evenly.

[0081] (3) Seal and heat the reaction system. Insert the anode electrode and the cathode electrode into the material of the corundum crucible, and keep a distance of 1 cm between the two electrodes. The reactor is sealed with graphite packing, and the reactor is fastened with bolts and nuts. Connect the condensing device, drying device and gas collection device separately...

Embodiment 2

[0085] Embodiment 2 is basically the same as Embodiment 1, the difference is:

[0086] In step (2), the dosage of polypropylene is 2g;

[0087] In step (3), the preset temperature is set to 400°C;

[0088] In step (5), the time of electrolysis reaction is 60min.

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Abstract

The invention relates to a method for degrading polypropylene to efficiently produce hydrogen and light dydrocarbon through solar heat-electrical coupling. The method comprises following steps of firstly, electrolytic material preparation, wherein polypropylene and an electrolyte are evenly mixed, and electrolytic materials are prepared; secondly, electrolysis, wherein the electrolysis materials produced in the first step are put into a reaction device, an electrolysis electrode is inserted into the electrolysis materials, a reaction device is sealed, a solar heat collection device is used forincreasing the temperature in the sealed reaction device to the set temperature, a solar battery is used for powering on, and at the constant current or constant voltage and set temperature, electrolysis is carried out; thirdly, hydrogen and light dydrocarbon collection, wherein heating and powering on are stopped, a gas phase product is collected, and a mixture containing hydrogen and light dydrocarbon is obtained. Through the method, green, clean and continuous degrading of waste plastic is achieved, and hydrogen and light dydrocarbon with high use value can be obtained.

Description

technical field [0001] The invention relates to the technical field of polymer material degradation, in particular to a method for efficiently producing hydrogen and light hydrocarbons from polypropylene by utilizing solar thermal-electrical coupling. Background technique [0002] Polypropylene accounts for a large proportion of discarded plastic waste. The traditional pyrolysis method has the characteristics of energy consumption and low value of products. Although the molecular sieve catalytic degradation method can improve the distribution of products and reduce the reaction temperature, there are also problems such as energy consumption and expensive catalysts. [0003] Solar energy is a clean, green and renewable energy source. In the current severe situation of environmental protection and energy crisis, if solar energy can be used as an energy source to degrade polypropylene, it will undoubtedly greatly reduce the cost of plastic waste disposal. [0004] Based on t...

Claims

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Application Information

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IPC IPC(8): C25B1/02C25B3/00F24S20/00
CPCY02E10/40C25B1/02C25B3/00
Inventor 姜婷婷谷笛江泓朱凌岳赵许乐王宝辉
Owner NORTHEAST GASOLINEEUM UNIV
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