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

Producing method for coal and oil coprocessing residue modified petroleum asphalt

A technology of petroleum asphalt and production method, which is applied in the direction of building components, building insulation materials, buildings, etc., can solve the problems of unstable performance of modified asphalt and easy segregation, etc., achieve obvious effects, solve segregation problems, and eliminate uneven dispersion Effect

Active Publication Date: 2015-02-04
SHANXI PROVINCIAL RES INST OF COMM +1
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production method of kerosene co-processing residue modified asphalt mainly adopts the miscibility method. After kerosene co-processing residue is added to petroleum asphalt, high-speed shearing machine or colloid mill is used for high-speed dispersion. Since kerosene co-processing residue is added in powder state , so the dispersed kerosene co-processing residue modified asphalt is prone to segregation, resulting in unstable performance of modified asphalt

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Grind 20g of kerosene co-processing residue to an average particle size of 75μm, dissolve it in 100g of tetrahydrofuran, and then blend it with 100g of petroleum pitch to form a mixture, and extract tetrahydrofuran from the mixture by vacuum distillation (-0.04Mpa, 90°C), Finally, the remaining mixture was sheared and dispersed by a high-speed shearing machine at a speed of 1000 rpm for 30 minutes at 130 °C, and the obtained kerosene co-processing residue modified asphalt had no segregation phenomenon during storage.

Embodiment 2

[0019] Grind 15g of kerosene co-processing residue to an average particle size of 60μm, dissolve it in 80g of tetrahydrofuran, and then blend it with 100g of petroleum pitch to form a mixture, and extract THF from the mixture by vacuum distillation (-0.05Mpa, 85°C), Finally, the remaining mixture was sheared and dispersed by a high-speed shearer at 2000 rpm for 15 minutes at 135°C, and the obtained kerosene co-processing residue modified asphalt had no segregation phenomenon during storage.

Embodiment 3

[0021] Grind 60g of kerosene co-processing residue to an average particle size of 50μm, dissolve it in 350g of tetrahydrofuran, and then blend it with 600g of petroleum pitch to form a mixture, and extract tetrahydrofuran from the mixture by vacuum distillation (-0.06Mpa, 80°C), Finally, the remaining mixture was sheared and dispersed by a high-speed shearing machine at a speed of 3000 rpm for 10 minutes at 140 ° C. After the dispersion, the modified asphalt obtained from the kerosene co-processing residue had no segregation phenomenon in storage.

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
particle sizeaaaaaaaaaa
penetrationaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of asphalt modification and discloses a producing method for coal and oil coprocessing residue modified petroleum asphalt. The method comprises the steps of dissolving ground coal and oil coprocessing residues into a solvent at a normal temperature, then mixing the ground coal and oil coprocessing residues with petroleum asphalt to form mixture, extracting the solvent out of the mixture in a vacuum reduced-pressure distillation mode, and finally using a high-speed shearing machine to shear and disperse the residual mixture at a certain temperature to enable coal and oil coprocessing residues to be evenly dispersed into the petroleum asphalt. The producing method can obviously improves dispersion evenness degree of the coal and oil coprocessing residues and the petroleum asphalt and solves the dissociation problem of the coal and oil coprocessing residue modified petroleum asphalt. Compared with an existing producing method for the coal and oil coprocessing residue modified petroleum asphalt, the producing method has the following advantages of being convenient and concise and obvious in effect. In addition, only a reduced-pressure distillation device is added on existing equipment, and the problems of uneven dispersion and dissociation of the existing method are completely solved.

Description

technical field [0001] The invention belongs to the technical field of asphalt modification, in particular to a production method of kerosene co-processing residue modified petroleum asphalt. technical background [0002] The modification of petroleum asphalt is mainly carried out by adding modifiers to petroleum asphalt, and the modified asphalt is called modified asphalt. There are many types of asphalt modifiers, but most modifiers (including kerosene co-processing residues) are not easily compatible with petroleum asphalt, which may easily lead to segregation of the modified asphalt during storage, resulting in a decrease in the performance of the modified asphalt. [0003] Commonly used modified asphalt production methods include direct mixing method, masterbatch method, solvent method, and emulsion method. The production method of kerosene co-processing residue modified asphalt mainly adopts the miscibility method. After kerosene co-processing residue is added to petr...

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): C08L95/00
Inventor 申力涛杜素军薛君刘俊权庞瑾瑜崔东霞
Owner SHANXI PROVINCIAL RES INST OF COMM