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Method for preparing gas-liquid fuels by scrap tire vacuum pyrolysis

A waste tire and vacuum technology, which is applied in the preparation of liquid hydrocarbon mixtures, special dry distillation, coke ovens, etc., can solve the problems of inability to condense liquid phase samples, low product quality, failure to remove sulfur, etc., to achieve Improve the condensation effect, reduce the reaction time, increase the yield effect

Inactive Publication Date: 2013-04-03
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Patent CN1760333 discloses a method and device for producing limonene, fuel oil and carbon black by vacuum catalytic cracking of waste tires, but the sulfur in the liquid products cannot be removed, and the liquid phase samples cannot be taken online, and the condensation effect is not ideal
Patent CN1834206 discloses a treatment method for waste rubber tires, which is a method of pyrolysis system. This method consumes a lot of energy and the product quality is not high

Method used

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  • Method for preparing gas-liquid fuels by scrap tire vacuum pyrolysis

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Experimental program
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Effect test

Embodiment 1

[0028] Mix the pretreated waste tires of 5mm×10mm~8mm×15mm and the supported solid alkali catalyst in a ratio of 1000g: 40g, then add them to the vacuum cracking reactor 4, and fill 400g of the supported solid iron oxide desulfurizer into the desulfurization device 3, and then install the desulfurization device 3 on the convex flange surface 2. Seal the convex flange surface 2, start the vacuum pump 27, and check the airtightness of the system. Open the fourteenth shut-off valve 24, wait for the reading of the vacuum gauge 35 to reach -0.090MPa, close the fourteenth shut-off valve 24, open the first shut-off valve 1, and pass N 2 , when the reading of the vacuum gauge 35 returns to zero, close the first shut-off valve 1 . Open the fourteenth stop valve 24, wait until the reading of the vacuum gauge 35 reaches -0.090MPa, close the sixteenth stop valve 26, start the compression pump 28, open the eighteenth stop valve 31, start the small circulation pump 32, adjust the absorptio...

Embodiment 2

[0031]Mix the pretreated 5mm×10mm~8mm×15mm waste tires with the supported solid alkali catalyst in a ratio of 1000g:50g and then add them to the vacuum cracking reactor 4, and fill 450g of the supported solid iron oxide desulfurizer into the desulfurization device 3, and then install the desulfurization device 3 on the convex flange surface 2. Seal the convex flange surface 2, start the vacuum pump 27, and check the airtightness of the system. Open the fourteenth shut-off valve 24, wait for the reading of the vacuum gauge 35 to reach -0.094MPa, close the fourteenth shut-off valve 24, open the first shut-off valve 1, and pass N 2 , when the vacuum gauge 35 returns to zero, close the first shut-off valve 1. Open the fourteenth stop valve 24, wait until the reading of the vacuum gauge 35 reaches -0.094MPa, close the sixteenth stop valve 26, start the compression pump 28, open the eighteenth stop valve 31, start the small circulation pump 32, and adjust the absorption bottle 22 ...

Embodiment 3

[0034] Mix the pretreated 5mm×10mm~8mm×15mm waste tires with the supported solid alkali catalyst in a ratio of 1000g:80g and then add them to the vacuum cracking reactor 4, and fill 500g of the supported solid iron oxide desulfurizer into the desulfurization device 3, and then install the desulfurization device 3 on the convex flange surface 2. Seal the convex flange surface 2, start the vacuum pump 27, and check the airtightness of the system. Open the fourteenth shut-off valve 24, wait for the reading of the vacuum gauge 35 to reach -0.098MPa, close the fourteenth shut-off valve 24, open the first shut-off valve 1, pass into N 2 , when the vacuum gauge 35 returns to zero, close the first shut-off valve 1. Open the fourteenth stop valve 24, wait until the reading of the vacuum gauge 35 reaches -0.098MPa, close the sixteenth stop valve 26, start the compression pump 28, open the eighteenth stop valve 31, start the small circulation pump 32, adjust the absorption bottle 22 Th...

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Abstract

The invention discloses a method for preparing gas-liquid fuels by scrap tire vacuum pyrolysis, and the method is to carry out vacuum pyrolysis on an integral device by a fixed bed containing high efficient desulfuration and to carry out vacuum pyrolysis on a scrap tire under the condition of load-type solid base catalyst to prepare the gas-liquid fuels. By using the method of the invention, sulphur in the volatile matter can be effectively removed, the obtained gas-liquid products can be directly taken as fuel for using, and the load-type solid catalyst not only can increase heat transfer efficiency of the scrap tires, but also can improve the content of high value-added products in fluid oil phase. The method is economical and feasible, has no discharging of the three wastes, and realizes zero pollution on the environment, and meanwhile, wastes are changed into wealth, which conforms to sustainable developmental tendency of the future resources.

Description

technical field [0001] The invention relates to the technical field of safe disposal and utilization of solid waste, in particular to a fixed-bed vacuum cracking integrated device with high-efficiency desulfurization and a loaded solid alkali catalyst to vacuum crack waste tires to prepare gas-liquid way of fuel. Background technique [0002] In recent years, with the increasingly serious energy crisis and environmental problems, the recycling of organic solid waste (such as waste tires) has gradually become a research focus. my country is the second largest tire producing country after the United States. According to preliminary statistics released by the National Bureau of Statistics on January 22, 2009, China produced 546.14 million tires in 2008, a year-on-year increase of 6.7%, and synthetic rubber totaled 2.38 million tons, a year-on-year increase of An increase of 9.2%, the generation of waste tires exceeded 150 million. How to effectively recycle waste tires and pre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G1/10C10B53/07
CPCY02P20/143
Inventor 肖国民王恋刘楠
Owner SOUTHEAST UNIV
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