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Method for converting PET, PTT and PBT products into cyclo-hydrocarbons in aviation kerosene range

A technology for aviation kerosene and manufactured products, applied in the petroleum industry, biological raw materials, preparation of liquid hydrocarbon mixtures, etc., can solve the problems of occupying resources, wasting the recycling value of waste plastics, etc., to solve environmental problems, solve energy problems, substrates Universal effect

Inactive Publication Date: 2019-05-03
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

3) Sanitary landfill treatment, waste plastic landfill is the treatment method with the least added value, which not only wastes the recycling value of waste plastic, but also occupies a large area of ​​land resources. In addition, sanitary landfill treatment still requires certain safety technologies
4) Heat recovery by incineration. Waste plastic is a fuel with high calorific value. Waste plastic recovery of heat by incineration is a high value-added treatment method, but the problem of secondary pollution must be properly handled
So far, there has been no international report on the use of waste PET resin to synthesize naphthenic hydrocarbons in the range of aviation kerosene

Method used

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  • Method for converting PET, PTT and PBT products into cyclo-hydrocarbons in aviation kerosene range
  • Method for converting PET, PTT and PBT products into cyclo-hydrocarbons in aviation kerosene range
  • Method for converting PET, PTT and PBT products into cyclo-hydrocarbons in aviation kerosene range

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Embodiment

[0028] 1. Preparation of catalyst:

[0029] The hydrogenation catalyst is prepared by equal-volume impregnation: mix a certain amount of metal solution and carrier evenly, then let it stand at room temperature for 4-12 hours, then dry it at 60-120°C for 4-12 hours, and then dry it at 200-600°C Calcination at lower temperature for 1-6 hours, reduction in hydrogen atmosphere at 100-400°C for 1-6 hours, and finally in 1% O by volume ratio 2 / N 2 passivation under the mixed atmosphere for 4h. Examples see the table below

[0030] The hydrodeoxygenation catalyst is prepared by co-impregnation: mix a certain amount of various metal solutions and the carrier evenly, then let it stand at room temperature for 4-12 hours, then dry it at 60-120°C for 4-12 hours, and then dry it at 200- Calcined at 600°C for 1-6h, reduced at 100-400°C under hydrogen atmosphere for 1-6h, and finally in 1% O by volume 2 / N 2 passivation under the mixed atmosphere for 4h. Examples are shown in the foll...

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Abstract

The invention relates to a method for directly converting wasted fibers, thin films and plastic bottles, which are manufactured from polyethylene terephthalate (PET), polytrimethylene terephthalate (PTT) and polybutylene terephthalate (PBT), into cyclo-hydrocarbons in aviation kerosene range. The method can be used for hydrodeoxygenation with a biomass oxygen-containing compound to acquire a fuelwhich contains a chain hydrocarbon, a cyclo-hydrocarbon and an aromatic hydrocarbon, thus solving the defect that a biomass aviation fuel is lack in aromatic hydrocarbons and is poor in volumetric calorific value and sealability. By using the waste wasted fibers, thin films and plastic bottles manufactured from the PET, PTT and PBT, the method is low in cost; the waste wasted fibers, thin films and plastic bottles manufactured from the PET, PTT and PBT, being white garbage, poses a great threat to environment, so that the method not only solves the problem of aviation fuel to certain degree but also solves environmental problems due to the white pollution. The method has potential advantages in future industrial application.

Description

technical field [0001] The invention relates to a method for directly converting PET, PTT, and PBT products into cyclohydrocarbons in the range of aviation kerosene. Concretely include three steps: 1) mix the fiber, film and plastic bottle made of waste PET, PTT, PBT with alcohol and alcoholyze at high temperature to obtain unsaturated ester; 2) process the unsaturated ester generated in step 1 Hydrogenation reaction to obtain saturated ester; 3) hydrodeoxygenation of saturated ester generated in step 2 to obtain C 7-8 aromatics and alkanes. This is the first report on the method of directly converting fibers, films, and plastic bottles made of waste PET, PTT, and PBT into aviation fuel. Compared with traditional aviation fuel, the source of raw materials is cheap and easy to obtain. , Fibers, films, and plastic bottles made of PBT can be used directly without pretreatment. Background technique [0002] Environmental problems such as the dwindling of fossil resources and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11C3/12C10G3/00C10G1/00
CPCY02P30/20
Inventor 李宁唐浩李广亿张涛王爱琴王晓东丛昱
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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