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Method for vacuum catalyzing and copyrolysis for waste rubber and lube oil

A technology for waste rubber and waste lubricating oil, applied in lubricating compositions and other directions, can solve the problems of complex product oil components, low product economic value, high energy consumption in the cracking process, and save the cost and energy consumption of crushing and separating steel wires. The effect of reducing and improving uniformity

Active Publication Date: 2009-06-03
NAT POLYMER MATERIALS IND INNOVATION CENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these thermal cracking processes have achieved certain effects from different technical angles, there are still some problems: 1) the cracking oil yield is low, only 20-40wt%; When it is fast, the required reaction temperature is high, generally greater than 500°C, and when the reaction temperature is less than 500°C, the reaction time is longer, generally more than 1h; 3) The economic value of the product is low
Due to the complex composition of the product oil obtained from the joint cracking of waste rubber and various mineral oils, vegetable oils or animal oils, it contains more than 100 components, and the content of each component is low, so it cannot be purified by common chemical separation methods

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Add waste tires, waste vacuum pump oil, and NaZSM-5 into the pyrolysis reactor at a ratio of 1:1:0.1 by weight and mix them. Under the pressure of 30mmHg, heat up to 300°C for 5 minutes for the pyrolysis reaction. The gas generated by reaction cracking passes through a neutralization tower filled with quicklime to remove the H contained in it. 2 After the corrosive gases such as S are condensed by the condenser, they are separated into non-condensable gas and cracked oil. The yield of the cracked oil is 50.6%. Table 1 shows. Non-condensable gases are mainly low-molecular-weight hydrocarbons, which can be directly used as fuel; the obtained pyrolysis oil is analyzed by gas chromatography-mass spectrometry for component content and distribution, and different fractions are extracted through rectification operations. The extracted light oil content It accounts for 35.1% of the total pyrolysis oil mass; the heavy pyrolysis oil can be re-entered into the reactor as waste lu...

Embodiment 2

[0022] Add waste tires, waste gasoline engine oil, and USY into the pyrolysis reactor at a ratio of 1:1.5:0.5 by weight and mix them. Under the pressure of 100mmHg, heat up to 500°C for 6 seconds for the pyrolysis reaction. The gas generated by reaction cracking passes through a neutralization tower filled with quicklime to remove the H contained in it. 2 After the corrosive gases such as S are condensed by the condenser, they are separated into non-condensable gas and cracked oil. The yield of the cracked oil is 50.2%. Table 1 shows. Non-condensable gases are mainly low-molecular-weight hydrocarbons, which can be directly used as fuel; the obtained pyrolysis oil is analyzed by gas chromatography-mass spectrometry for component content and distribution, and different fractions are extracted through rectification operations. The extracted light oil content It accounts for 32.3% of the total pyrolysis oil mass; the heavy pyrolysis oil can be used as waste lubricating oil to re-...

Embodiment 3

[0024] Add waste tires, waste diesel engine oil, and MCM-41 into the pyrolysis reactor at a ratio of 1:3:3 by weight and mix them. Under the pressure of 200mmHg, heat up to 450°C for 30 seconds. The gas generated by reaction cracking passes through a neutralization tower filled with quicklime to remove the H contained in it. 2 After the corrosive gases such as S are condensed by the condenser, they are separated into non-condensable gas and cracked oil. The yield of the cracked oil is 60.1%. Table 1 shows. Non-condensable gases are mainly low-molecular-weight hydrocarbons, which can be directly used as fuel; the obtained pyrolysis oil is analyzed by gas chromatography-mass spectrometry for component content and distribution, and different fractions are extracted through rectification operations. The extracted light oil content It accounts for 25.6% of the total pyrolysis oil mass; the heavy pyrolysis oil can be re-entered into the reactor as waste lubricating oil to participa...

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PUM

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Abstract

A method for catalyzed copyrolyzing refused rubber and lubricating oil at vacuum is carried out by: mixing refused rubber with waste lubricating oil and catalyst in weight proportion of 1: 0.1~5:0.0001~5, and pyrolysis reacting at 300-500 degrees C and pressure 30~750mm mercury for 0.1-20mins. It is cheap, has faster pyrolysis speed ration, lower pyrolysis temperature, better recovery rate and quality.

Description

1. Technical field [0001] The invention belongs to the technical field of recycling resources from waste rubber. It specifically relates to a method for co-cracking waste rubber by adding waste lubricating oil and a catalyst under reduced pressure conditions. 2. Background technology [0002] Due to the high elasticity of rubber, its application fields are very wide, especially with the development of the automobile industry, the use of automobile tires has increased sharply, and the resulting large amount of waste tires and other waste rubber products have caused environmental damage. Serious "black pollution" is causing people's close attention. According to relevant data surveys, the total amount of waste tires, rubber hoses, tapes, rubber shoes and other waste rubber products produced in my country in 2004 reached 5.0×10 6 tons, of which the amount of waste tires reached 3.2×10 6 Tons, and this value will increase a lot as cars enter families and car ownership increas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G1/10C10M175/00
Inventor 王玉忠周茜渠巍张婧兰文文杨嘉伟吴焰辉
Owner NAT POLYMER MATERIALS IND INNOVATION CENT CO LTD