Unlock instant, AI-driven research and patent intelligence for your innovation.

A method for component analysis of coal tar pitch and petroleum pitch blended asphalt

A technology of petroleum pitch and analysis method, applied in the field of component analysis of coal pitch and petroleum pitch blended pitch, can solve problems such as long operation time, achieve the effects of simple preparation, prevent solvent volatilization, and reduce operation time

Active Publication Date: 2019-04-30
TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the change of the components in the system, the blended asphalt of coal tar pitch and petroleum pitch is not suitable for the analysis by the above method, and the operation time of the above method is relatively long. Usually, it takes 1-2 days to complete a set of tests.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method for component analysis of coal tar pitch and petroleum pitch blended asphalt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The component analysis method of a kind of coal tar pitch and petroleum pitch blended asphalt that embodiment 1 provides, comprises as follows

[0040] step:

[0041] (1) Firstly prepare the chromatographic column: plug the lower end of the chromatographic column with a tube length of 100 mm and a tube diameter of 10 mm with absorbent cotton, and fill it with 20 mm high aluminum oxide, 20 mm activated silica gel and 20 mm activated carbon from bottom to top. , the lower end is connected with a distillation head interface, wherein the lower end is connected with a collection bottle, and one side of the interface is connected with a condensation device and a decompression device, and the vacuum degree is controlled to be 0.06Mpa; (2) Adding of the sample: dissolve the 0.1g blended asphalt A in 50ml tetrahydrofuran, then filter the residue, add activated carbon to the filtrate, put it in an oven for drying, and place the dried sample in a chromatography column; (3) separat...

Embodiment 2

[0043] The component analysis method of a kind of coal tar pitch and petroleum pitch blended asphalt that embodiment 2 provides, comprises as follows

[0044] step:

[0045] (1) Firstly prepare the chromatographic column: plug the lower end of the chromatographic column with a tube length of 160 mm and a tube diameter of 20 mm with absorbent cotton, and fill in 40 mm of activated aluminum oxide, 40 mm of activated silica gel and 40 mm of activated carbon from bottom to top. Connected to a distillation head interface, wherein the lower end is connected to a collection bottle, and one side of the interface is connected to a condensation device and a decompression device, and the vacuum degree is controlled to 0.08Mpa; (2) Dissolve the 0.1g blended asphalt A in 50ml tetrahydrofuran, and then filter residue, add activated carbon to the filtrate, put it into an oven for drying, and place the dried sample in a chromatographic column; (3) Separation of chromatographic components: fix t...

Embodiment 3

[0047] The component analysis method of a kind of coal tar pitch and petroleum pitch blended asphalt that embodiment 3 provides, comprises as follows

[0048] step:

[0049] (1) Firstly prepare the chromatographic column: plug the lower end of a glass chromatographic column with a tube length of 120mm and a tube diameter of 10mm with absorbent cotton, and fill it with activated aluminum oxide 30mm high, silica gel 30mm and activated carbon 30mm respectively from bottom to top, The lower end is connected with a distillation head interface, wherein the lower end is connected with a collection bottle, and one side of the interface is connected with a condensation device and a decompression device, and the vacuum degree is controlled at 0.06Mpa; (2) adding the sample, dissolving the 0.1g blended asphalt B in 50ml of tetrahydrofuran, then filter the residue, add activated carbon to the filtrate, put it in an oven for drying, and place the dried sample in the chromatography column; ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
heightaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a component analysis method of coal pitch and petroleum pitch blended pitch. The content of saturated hydrocarbon, aromatic hydrocarbon, colloid, preasphaltene and insoluble substance components of the blended pitch is analyzed by a composite supporter chromatographic column in combination with a low-toxicity washing solvent, the chromatographic column is connected with a decompressor, the operation time required for component analysis is shortened, the dosage of the washing solvent is reduced, and operation control is facilitated. According to the analysis method, the chromatographic column is simple to prepare, a supporter is easy to treat, regenerate and activate, the low-toxicity washing solvent is adopted, and harm to a test worker is reduced. The component analysis method of the blended pitch has the advantages of being efficient, environment-friendly, low in cost and the like.

Description

【Technical field】 [0001] The invention belongs to the technical field of chemical analysis methods, in particular to a component analysis method of coal tar pitch and petroleum pitch blended asphalt. 【Background technique】 [0002] Coal, petroleum and other processing industries are closely related to the study of family composition. Although the analysis of coal tar, heavy oil, asphalt and other substances has been researched and developed for a long time, an efficient test method for the component analysis of coal tar pitch and petroleum pitch blended asphalt has not been proposed so far. [0003] The components of coal tar pitch and petroleum pitch are very complex. Blended asphalt is widely used, especially in paving construction, but its composition is very complex, containing more than one million substances. The most common method is to use the family composition analysis method to divide the blended asphalt into several different components, for example, it is often...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01N5/04
CPCG01N5/04
Inventor 薛永兵李丰超刘振民葛泽峰苏深
Owner TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY