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A method of degrading waste tires to oil

A technology for waste tires and waste oil, which is applied in the treatment of hydrocarbon oil, petroleum industry, hydrocarbon oil treatment products, etc., can solve problems such as the inability to meet cost control, reduce equipment requirements, reduce production costs, and eliminate the influence of harmful gases Effect

Active Publication Date: 2017-05-10
贵州华宇橡胶科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, although there are relatively many researches on the field of oil production from waste tires in the prior art, these technical solutions still cannot meet the requirements of cost control for oil production, improvement of oil quality and output. Based on this, this study will Further exploration and research have been made on the technology of waste tires used in the field of oil production, which provides a new idea for the preparation of high-quality, high-yield oil products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for producing oil by degrading waste tires, comprising the following steps:

[0024] After the waste tires are cut into pieces in a cutting machine, they are added to the reactor with clarified lime water at a weight ratio of 1:10, and a desulfurizer is added to the reactor in an amount of clarified lime water 0.1 times of that, under nitrogen atmosphere, raise the temperature in the reactor to 400°C at a rate of 2°C / min, control the pressure to 16MPa, react at constant temperature and pressure for 1.1h, and then adjust the temperature to 200°C , keep the pressure constant for 10 minutes, then cool it down to normal temperature in 20s, and separate the gas-liquid products; mix tetrahydrofuran and desulfurizer according to the mass ratio of 3:0.1 and add them to the liquid phase, the addition amount is 10% of the mass of the liquid phase %, and it was ultrasonically treated for 20s, left to stand for 10min, oil and water were separated, and the oil phase was eva...

Embodiment 2

[0026] A method for producing oil by degrading waste tires, comprising the following steps:

[0027] After the waste tires are cut into pieces in a cutting machine, they are added to the reactor with clarified lime water at a weight ratio of 1:20, and a desulfurizer is added to the reactor in an amount of clarified lime water 0.4 times of that, under a nitrogen atmosphere, raise the temperature in the reactor to 450°C at a heating rate of 5°C / min, control the pressure to 18MPa, react at constant temperature and pressure for 3 hours, and then adjust the temperature to 270°C, Keep the pressure constant for 20 minutes, then cool it down to normal temperature in 40 seconds, and separate the gas and liquid products; mix tetrahydrofuran and desulfurizer according to the mass ratio of 3:0.5 and add it to the liquid phase, the amount added is 30% of the mass of the liquid phase , and it was ultrasonically treated for 30s, left to stand for 20min, oil and water were separated, and the ...

Embodiment 3

[0032] A method for producing oil by degrading waste tires, comprising the following steps:

[0033] After the waste tires are cut into pieces in a cutting machine, they are added to the reactor with clarified lime water at a weight ratio of 1:15, and a desulfurizer is added to the reactor in an amount of clarified lime water 0.3 times of that, under a nitrogen atmosphere, raise the temperature in the reactor to 430°C at a rate of 3°C / min, control the pressure to 17MPa, react at constant temperature and pressure for 2h, and then adjust the temperature to 250°C, Keep the pressure constant for 15 minutes, then cool it down to normal temperature in 30 seconds, and separate the gas and liquid products; mix tetrahydrofuran and desulfurizer according to the mass ratio of 3:0.3 and add it to the liquid phase, the amount added is 20% of the liquid phase mass , and it was treated with ultrasonic waves for 25s, left to stand for 15min, and the oil and water were separated, and the oil p...

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Abstract

The invention relates to the technical field of oil preparation via waste tires and particularly relates to an oil preparation method via waste tire degradation. Clear lime water and a waste tire are mixed so that calcium ions and hydroxyl ions can react with oil effective components and sulfur-containing components in the tire; by controlling the heating rate in a nitrogen protection environment, the bonds S-S and S-C in the waste tire break to remove the sulfur components while retaining the oil components; by controlling the temperature at 400-450 DEG C and pressure at 16-18MPa and 1.1-3h of reaction at constant temperature under constant pressure, the bonds S-S and S-C in the waste tire can break effectively under the effect of a desulfurizing agent, and the requirements on equipment are lowered; and moreover, through 10-20min of constant-pressure treatment at a temperature of 200-270 DEG C, the oil components and metal oxides in the desulfurizing agent react with other impurity components in the waste tire, and the oil recovery rate reaches 63-71%.

Description

technical field [0001] The invention relates to the technical field of producing oil from waste tires, in particular to a method for producing oil by degrading waste tires. Background technique [0002] With the development of our country's social economy and the continuous improvement of people's living standards, the continuous development of the automobile industry has become an indisputable fact, but with the continuous increase in the amount of waste tires, it has also caused threats and harm to the environment. The traditional accumulation and landfill methods not only occupy a large amount of land and give up the potential energy of waste tires, but also make them a source of environmental pollution. [0003] Along with the recycling of waste tires, degrading waste tires to produce oil has become one of the key technologies for the comprehensive utilization of waste tires. The reason is that tires contain a structure similar to that of aromatic hydrocarbon polymers in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G1/10
CPCC10G1/10C10G2300/1003C10G2400/30
Inventor 申建忠袁能汉
Owner 贵州华宇橡胶科技有限公司
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