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Method for directly preparing aviation gasoline and aviation kerosene from polyolefin waste plastics

A technology of aviation gasoline and aviation kerosene, which is applied in the preparation of liquid hydrocarbon mixtures, processing hydrocarbon oil, hydrocarbon oil treatment products, etc., can solve the problems of harsh reaction conditions, waste plastic pollution, environmental pollution, etc., and achieve carbon cycle, consumption Low and high yield effects

Active Publication Date: 2021-10-15
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Aiming at the disadvantages of environmental pollution, waste of resources, low-end products and harsh reaction conditions in the treatment of waste plastics, the innovative dual-functional catalyst using noble metals and inorganic solid acids as the main active components has successfully realized the efficient reuse of waste plastics. It has greatly solved the problem of waste plastic pollution, and at the same time provided a new production method of aviation oil, and has many advantages such as simple process and high economic benefit

Method used

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  • Method for directly preparing aviation gasoline and aviation kerosene from polyolefin waste plastics
  • Method for directly preparing aviation gasoline and aviation kerosene from polyolefin waste plastics
  • Method for directly preparing aviation gasoline and aviation kerosene from polyolefin waste plastics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1Rh / Nb 2 o 5 Catalyst preparation

[0019] Measure 2.63mL of RhCl 3 . 3H 2 O (3g / 100mL) solution was added to a 100mL round bottom flask, and then 1g of carrier (Nb 2 o 5 ) and 60 mL of deionized water, and stirred at room temperature for 12 hours. After the impregnation, the water was removed by rotary evaporation, and dried at 80 ° C for 12 hours to ensure that the water was completely removed. Subsequently, the prepared catalysts were calcined at 400°C for 3h in a mixed atmosphere of oxygen and argon (1:1), the theoretical metal loading of all catalysts was 3wt.%. ℃ pre-reduced for 2h, its X-ray diffraction pattern is as follows figure 1 .

Embodiment 2

[0020] Example 2Rh / Al 2 o 3 Catalyst preparation

[0021] Measure 2.63mL of RhCl 3 . 3H 2 O (3g / 100ml) solution was added into a 100ml round bottom flask, and then 1g of carrier (Al 2 o 3 ) and 60ml of deionized water, and stirred at room temperature for 12 hours. After the impregnation, the water was removed by rotary evaporation, and dried at 80°C for 12 hours to ensure that the water was completely removed. Subsequently, the prepared catalyst was calcined at 400°C for 3h in a mixed atmosphere of oxygen and argon (1:1), and the theoretical metal loading of the obtained catalyst was 3wt.%. Before each reaction, the catalyst was heated in a tube furnace under hydrogen Pre-reduction at 300°C for 2h under atmosphere.

Embodiment 3

[0022] Example 3Rh / ZrO 2 Catalyst preparation

[0023] Measure 2.63mL of RhCl 3 . 3H 2 O (3g / 100ml) solution was added to a 100ml round bottom flask, and then 1g carrier (ZrO 2 ) and 60ml of deionized water, and stirred at room temperature for 12 hours. After the impregnation, the water was removed by rotary evaporation, and dried at 80°C for 12 hours to ensure that the water was completely removed. Subsequently, the prepared catalysts were calcined at 400°C for 3 h in a mixed atmosphere of oxygen and argon (1:1), and the theoretical metal loading of all catalysts was 3 wt.%. Before each reaction, the catalysts were heated in a tube furnace under hydrogen Pre-reduction at 300°C for 2h under atmosphere.

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Abstract

The invention discloses a method for directly preparing aviation gasoline and aviation kerosene from polyolefin waste plastics, and belongs to the technical field of resource recycling. According to the method, high-molecular polyolefin waste plastic is taken as a raw material, a bifunctional catalyst composed of noble metal and inorganic solid acid is adopted, coupling of hydrogenation degradation and isomerization reaction of high-molecular-weight polyolefin plastic is realized, preparation of high-value oil from the polyolefin plastic is continuously realized by a one-step method, the conversion rate reaches about 99%, and the the conversion rate of the aviation oil product is as high as 80%. The method has the advantages of mild reaction conditions, simple catalyst preparation process, high activity, high selectivity and good stability, and is suitable for industrial production. The method not only can realize cyclic utilization of resources, but also can alleviate the current environmental pollution problem.

Description

technical field [0001] The invention belongs to the technical field of resource recycling and relates to a method for directly preparing aviation gasoline and aviation kerosene from polymer polyolefin waste plastics. Background technique [0002] Polyolefin (PE, PP) monomers ethylene and propylene are mainly derived from petroleum cracking and cracking, which belong to petrochemical products. Polyolefin plastics are used everywhere in life, but because of their acid resistance, alkali resistance and good stability, polyolefin plastics are difficult to degrade in the natural environment, so a large number of polyolefin plastics appear in oceans, rivers and garbage market, greatly polluting our living environment. [0003] At present, the treatment methods of polyolefin waste plastics mainly include simple incineration, pyrolysis, biodegradation, and in-situ burial. The energy in it is wasted. The disadvantage of in-situ burial is that polyolefin plastics have good stabilit...

Claims

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Application Information

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IPC IPC(8): C10G1/10
CPCC10G1/10C10G2400/02C10G2300/1003
Inventor 梁长海杜博文陈霄李闯
Owner DALIAN UNIV OF TECH
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