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Carbon nanomaterial prepared from waste tires as well as synthesis method and application of carbon nanomaterial

A nano-carbon material and synthesis method technology, applied in the field of desulfurization, can solve problems affecting the recycling of adsorbents, equipment corrosion, etc., and achieve the effect of improving adsorption and removal capacity, small particle size, and high adsorption activity

Inactive Publication Date: 2019-08-02
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Reducing the sulfur content in diesel and realizing low-sulfur diesel is an inevitable trend in the future development of the oil refining industry. With the emphasis on environmental issues around the world, the commonly used mercaptan removal technologies in industry include S-zorb technology, alkali treatment, etc. However, the S-zorb technology will generate by-products during the adsorption process, which will affect the recycling of the adsorbent and other disadvantages; while the alkali treatment method is easy to cause corrosion to the equipment, so waste tires are used as raw materials, pretreated by green fermentation and then calcined. Preparation of nano-carbon materials to absorb and remove mercaptans in gasoline under normal temperature and pressure conditions can overcome the above shortcomings

Method used

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  • Carbon nanomaterial prepared from waste tires as well as synthesis method and application of carbon nanomaterial

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of preparation method of the carbon nano material that is made by waste tire, comprises the following steps:

[0027] 1) Weigh 6g of waste tires and 10.2g of KOH into a beaker, add 50mL of distilled water, and stir at 60°C for 12h.

[0028] 2) Washing, vacuum filtration to obtain a black solid, drying at 80°C for 12 hours, after drying, take 1 g of the black solid and 1 g of NaHCO 3 Grind and mix, put the mixture into a heating tube furnace and raise the temperature to 800°C at a rate of 5°C / min, keep it for 1h, and then cool down naturally.

[0029] 3) Take out the black product in the tube furnace, wash it until neutral, and then place it in an oven at 80°C for 12 hours to obtain ultrafine particles of carbon nanomaterials made from waste tires, which are designated as C-1.

[0030] The synthesized nano-carbon material has a specific surface area of ​​78m 2 / g, the average particle diameter is 76.9nm.

Embodiment 2

[0032] A kind of preparation method of the carbon nano material that is made by waste tire, comprises the following steps:

[0033] 1) Weigh 6g of waste tires and 10.2g of KOH into a beaker, add 50ml of distilled water, and stir at 60°C for 12h.

[0034] 2) Wash and vacuum filter to obtain a black solid, dry at 80°C for 12 hours, take 1 g of the black solid and 1.5 g of NaHCO after drying 3 Grind and mix, put the mixture into a heating tube furnace and raise the temperature to 800°C at a rate of 5°C / min, keep it for 1h, and then cool down naturally.

[0035] 3) Take out the black product in the tube furnace, wash it until neutral, and then place it in an oven at 80°C for 12 hours to obtain ultrafine particles of carbon nanomaterials made from waste tires, which are designated as C-2.

[0036] The synthesized nano-carbon material has a specific surface area of ​​99m 2 / g, the average particle diameter is 60.4nm.

Embodiment 3

[0038] A kind of preparation method of the carbon nano material that is made by waste tire, comprises the following steps:

[0039] 1) Weigh 6g of waste tires and 10.2g of KOH into a beaker, add 50mL of distilled water, and stir at 60°C for 13h.

[0040] 2) Washing, vacuum filtration to obtain a black solid, drying at 85°C for 12 hours, after drying, take 1 g of the black solid and 2 g of NaHCO 3 Grind and mix, put the mixture into a heating tube furnace and raise the temperature to 800°C at a rate of 5°C / min, keep it for 1h, and then cool down naturally.

[0041] 3) Take out the black product in the tube furnace, wash it until neutral, and then place it in an oven at 80°C for 12 hours to obtain ultrafine particles of carbon nanomaterials made from waste tires, which are denoted as C-3.

[0042] The synthesized nano-carbon material has a specific surface area of ​​83m 2 / g, the average particle size is 72.6nm.

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Abstract

The invention belongs to the technical field of desulfurization and relates to a carbon nanomaterial prepared from waste tires as well as a synthesis method and an application of the carbon nanomaterial, in particular to an application in gasoline adsorption desulfurization. The preparation process comprises the steps as follows: waste tires are pretreated, sodium bicarbonate is added to an obtained sample for pretreatment with a fermentation method, finally, calcination treatment is performed, and the carbon nanomaterial with superfine particles is obtained. The process is simple, sodium bicarbonate and a carbon material are mixed and calcined in the synthesis process, the obtained carbon material has higher adsorption activity for sulfide in fuel, the dosage of an adsorbent is low, the production cost is low, and the quality of obtained oil is high. The adsorbent is convenient to recover and can be recycled.

Description

technical field [0001] The invention belongs to the technical field of desulfurization, in particular to a nano-carbon material prepared from waste tires, its synthesis method and its application in gasoline desulfurization. Background technique [0002] With the increase in the number of vehicles, the combustion of sulfur-containing fuels will cause serious air pollution, so controlling the sulfur content in fuel can effectively reduce pollution from the source. Reducing the sulfur content in diesel and realizing low-sulfur diesel is an inevitable trend in the future development of the oil refining industry. With the emphasis on environmental issues around the world, the commonly used mercaptan removal technologies in industry include S-zorb technology, alkali treatment, etc. However, the S-zorb technology will generate by-products during the adsorption process, which will affect the recycling of the adsorbent and other disadvantages; while the alkali treatment method is ea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30C10G25/00C01B32/15
CPCB01J20/20B01J20/30C10G25/00C10G2300/202C01B32/15
Inventor 罗静朱文帅居海涛吉海燕何静李华明
Owner JIANGSU UNIV
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