Method for preparing carbon material by use of heavy oil

A technology of carbon materials and heavy oil, which is applied in the processing of tar pitch/petroleum pitch/natural pitch, chemical processing of tar pitch/petroleum pitch/natural pitch, and the petroleum industry, and can solve problems such as inability to adjust flexibly

Inactive Publication Date: 2014-06-18
广州万熹龙新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these patents are all aimed at the preparation method of a certain carbon material and cannot be adjusted flexibly. At the same time, they are used to produce high-performance carbon fi...

Method used

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  • Method for preparing carbon material by use of heavy oil
  • Method for preparing carbon material by use of heavy oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] Certain heavy oil, its property is as follows table 1,

[0069] Table 1

[0070] project

[0071] 1 part of heavy oil was mixed and dissolved in 2 parts of xylene, and the insoluble fraction thus formed was separated and removed using a continuous filter. Remove xylene from the filtrate by distillation to obtain refined heavy oil, the properties of which are shown in Table 2

[0072] Table 2

[0073] project

[0074] Refined heavy oil, xylene soluble components produced in subsequent processes, and hydrogenated heavy solvent (residue) are placed at a temperature of 450-550°C and a pressure of 1.0-5.0Mpa. Carry out heat treatment in the thermal polycondensation furnace, and send the processed product to the distillation tower for fractional distillation at the top temperature of 250-290°C and the top pressure of 0-0.3Mpa, remove cracked gas and lighter fractions from the top of the tower, and use it as fuel for the device. Take out pyrolysis heav...

Embodiment example 2

[0102] The properties of a certain heavy oil are shown in Table 11

[0103] Table 11

[0104] project

[0105] Repeat the implementation of Case 1 to obtain the following products at each stage:

[0106] Table 12

[0107] project

[0108] Table 13: Xylene Insoluble Components

[0109] project

[0110] Table 14: Mesophase pitch properties

[0111] project

[0112] Table 15: High Performance Carbon Fiber

[0113] project

[0114] Table 16: Isotropic Bitumen

[0115] project

[0116] Table 17: General purpose carbon fiber

[0117] project

[0118] COPNA resin is the same as embodiment 1

Embodiment 3

[0120] Repeat embodiment 1, take following heavy oil as raw material, each step implementation data is as follows:

[0121] Table 18 Heavy oil

[0122] project

heavy oil

Refined heavy oil

Pyrolysis of heavy oil

Soluble components

density 3 g / cm 3

1.163

1.182

1.194

1.189

Viscosity (cst100℃)

5.2

28.5

23.6

19.2

Xylene insoluble matter (wt%)

4.7

1.9

6.1

2.1

Quinoline insoluble matter (wt%)

0.6

<0.1

<0.1

<0.1

Distillation (°C)

IBP

189

221

223

219

10% (vol)

221

304

253

250

30% (vol)

322

373

345

342

50% (vol)

402

439

428

405

[0123] Table 19: Asphalt

[0124] project

Xylene insoluble components

mesophase pitch

Isotropic asphalt

Xylene insoluble matter (wt%)

73.5

92.9

61.8

Quinoline insolu...

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Abstract

The invention discloses a method for preparing a carbon material by use of heavy oil. The method adopts the heavy oil as a raw material to produce intermediate-phase spun asphalt, isotropic spun asphalt and COPNA resin through the following steps: 1, pretreating the heavy oil, and removing free carbon granules and dimethyl benzene insoluble substances from the heavy oil to obtain refined heavy oil; 2, treating the refined heavy oil through a proper thermal poly-condensation process to obtain pyrolysis heavy oil; 3, dissolving, washing and separating the pyrolysis heavy oil by use of dimethyl benzene to obtain a dimethyl benzene soluble component and a dimethyl benzene insoluble component; 4, dissolving the dimethyl benzene insoluble component by use of a hydrogenated heavy solvent and performing a hydrogenation and co-carbonization reaction to obtain hydrogenated asphalt; 5, thermally treating the hydrogenated asphalt to obtain intermediate-phase asphalt; 6, separating the solvent from the dimethyl benzene soluble component obtained in the step 3 and removing the dimethyl benzene solvent to obtain the soluble component; 7, recycling a part of the soluble component in the step 2 and making the part have thermal poly-condensation with the refined heavy oil, and thermally treating the other part to obtain the isotropic spun asphalt; and 8, letting distillate oil which is at a temperature lower than 350 DEG C and obtained by separation during the thermal treatment in the step 7 have a cross-linkage reaction with a cross-linking agent to obtain the CNPNA resin.

Description

technical field [0001] The invention belongs to the fields of new carbon materials and fuel chemical industry, and in particular relates to a method for preparing carbon materials from heavy oil, which is applicable to industrial scale. technical background [0002] my country is one of the major energy countries in the world. Statistics show that the annual output of coke in my country is about 400 million tons, accounting for 60% of the world's coke production, and the output of coal tar recovered from coking gas is 18 million tons per year. The oil processing capacity reaches 400 million tons / year, and the heavy oil produced by various processing methods reaches 60 million tons / year. However, the utilization methods of coal series and petroleum series heavy oil are very limited now. In fact, most of the applications only stay at the primary level of road construction, anti-corrosion, waterproof materials or final burning. Therefore, how to effectively utilize heavy oil ...

Claims

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Application Information

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IPC IPC(8): C10C3/02C10C3/06C10C3/00C08G61/02
Inventor 聂郁栋
Owner 广州万熹龙新材料科技有限公司
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