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Preparation of active carbon and fuel oil by use of petroleum residue and tar residue together

A technology of petroleum residue oil and tar residue, which is applied in the field of industrial waste utilization and can solve problems such as high cost, heavy pollution, and difficulty in mastering by recycling companies

Inactive Publication Date: 2015-04-29
SHENYANG INST OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] As a new type of activator, phosphoric acid can activate many carbon-containing substances to obtain activated carbon with high specific surface area, which has attracted the attention of all countries in the world; The method of phosphoric acid-air combined activation treatment has not been reported; the preparation of activated carbon from tar residue and petroleum residue oil generally all uses chemical agents such as sodium hydroxide and potassium hydroxide to carry out chemical activation, but the pollution is relatively large; Various chemical raw materials have high cost and complex process, and it is difficult for recycling enterprises to master; this study uses coal tar residue and petroleum residue as raw materials, and uses the treatment method of the ratio of the two raw materials to refine fuel oil, and uses air and phosphoric acid to combine Activation to prepare activated carbon, a good solution to the problem of reusing coal tar residue and petroleum residue
[0006] The present invention uses coal tar residue and petroleum residue as raw materials, adopts the mixing and proportioning treatment of the two raw materials, and extracts light components to prepare fuel oil suitable for combustion in industrial furnaces; the remaining residue can be treated with phosphoric acid and air activation , to prepare activated carbon with high specific surface area, and use coal tar residue and petroleum residue as a valuable energy source to achieve the purpose of turning waste into wealth and turning harm into profit; so far, there is no combination of petroleum residue and tar residue Related reports on preparation of activated carbon and fuel oil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The tar residue and petroleum residue are mixed at a ratio of 1:1, subjected to vacuum distillation at 350°C, filtered, and the light components are separated as raw materials for preparing fuel oil.

[0021] Collect the remaining residue, add 20% solvent, the solvent is benzene spirit, dissolve the asphaltenes in the oil, and mix the liquid with the above light components after liquid-solid separation.

[0022] The remaining residue was soaked in 20% phosphoric acid solution for 2 hours.

[0023] The impregnated carbon is activated in the air with a horizontal carbonization furnace at an activation temperature of 820°C, and after cooling, it is washed with deionized water until neutral. Granular activated carbon was obtained after the sample was roasted and dried at 120°C.

Embodiment 2

[0025] The tar residue and petroleum residue are mixed at a ratio of 1:3, subjected to vacuum distillation at 340°C, filtered, and the light components are separated as raw materials for preparing fuel oil.

[0026] Collect the remaining residue, add 10% solvent, the solvent is coking plant washing oil and anthracene oil, dissolve the asphaltenes in the oil, and mix the liquid with the above light components after liquid-solid separation.

[0027] The remaining residue was soaked in 30% phosphoric acid solution for 6 hours.

[0028] The impregnated carbon is activated in a horizontal carbonization furnace in air at an activation temperature of 800°C, and washed with deionized water until neutral after cooling. Granular activated carbon was obtained after the sample was roasted and dried at 120°C.

Embodiment 3

[0030] The tar residue and petroleum residue are mixed at a ratio of 3:1, subjected to vacuum distillation at 350°C, filtered, and the light components are separated as raw materials for preparing fuel oil.

[0031] Collect the remaining residue, add 20% solvent, the solvent is coking plant washing oil and 18 alkyl polyoxyethylene ether, dissolve the asphaltenes in the oil, and mix the liquid with the above light components after liquid-solid separation.

[0032] The remaining residue was soaked in 15% phosphoric acid solution for 4 hours.

[0033] The impregnated carbon is activated in a horizontal carbonization furnace in air at an activation temperature of 800°C, and washed with deionized water until neutral after cooling. Granular activated carbon was obtained after the sample was roasted and dried at 120°C.

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Abstract

The invention relates to a method for preparing granular active carbon and fuel oil by mixing petroleum residue and tar residue. The obtained active carbon has a highly developed pore structure and a huge specific surface area, and the fuel oil can be applied to an industrial boiler. The active carbon can be applied to the refining and separation of gas and liquid, water treatment, air purification and the like as a porous carbon material. Meanwhile, according to the method provided by the invention, by controlling the ratio of the petroleum residue to the tar residue, the viscosity of oil is reduced, and the asphaltene in the oil is dissolved; and meanwhile, by adding a stabilizer and a dispersing agent, the oil contained in the tar residue and petroleum residue can be sufficiently mixed to achieve an aim of preparing fuel oil. The residue left after the preparation of fuel oil is activated by use of air and phosphoric acid together to obtain active carbon different in specific surface area and pore size distribution. According to the method provided by the invention, by adopting the tar residue and petroleum residue as raw materials, the aim of utilizing the waste and turning the waste into wealth can be achieved, and the environmental pollution can be reduced.

Description

technical field [0001] The invention relates to a method for preparing granular activated carbon and fuel oil by mixing petroleum residue oil and tar residue. The obtained activated carbon has a highly developed pore structure and a huge specific surface area, and the fuel oil can be used in industrial boilers; the invention belongs to the field of industrial waste utilization . Background technique [0002] The tar residue is composed of the residue produced in the separation of the tar ammonia clarifier tank and the regenerator of the crude benzene process in the coking plant; for a coking plant with an annual output of 2.5 million tons of coke, 1,100 tons of tar residue can be produced each year; the volatile matter of the tar residue contains a considerable amount of Polycyclic aromatic hydrocarbons are carcinogenic to humans and animals, especially benzopyrene, which is an internationally recognized carcinogen and extremely harmful; at present, most manufacturers are st...

Claims

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Application Information

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IPC IPC(8): C01B31/12C10G1/00
Inventor 赵海刘俊清董兴隋顺康陶冶丞裴国龙潘鸿牟春鑫
Owner SHENYANG INST OF ENG