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

A kind of production device and production method of intermediate temperature modified asphalt without mesophase

A modified asphalt and production method technology, applied in the field of coal chemical industry, can solve the problems of high reaction temperature, reduce the bonding strength of coal tar pitch and solid carbonaceous materials, and increase the strength of unfavorable carbon materials, so as to achieve the effect of saving resources and energy

Active Publication Date: 2016-03-02
BAOWU CHARCOAL MATERIAL TECH CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The shortcoming of this invention is that reaction temperature is as high as above 390 ℃, easily produces mesophase (as attached Figure 2a ), the generation of mesophase will hinder the penetration of coal tar pitch into the micropores of aggregate particles during the kneading process, thereby reducing the bonding strength of coal tar pitch and solid carbonaceous materials, which is not conducive to the improvement of the strength of carbon materials

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 kind of production device and production method of intermediate temperature modified asphalt without mesophase
  • A kind of production device and production method of intermediate temperature modified asphalt without mesophase
  • A kind of production device and production method of intermediate temperature modified asphalt without mesophase

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as figure 1 As shown, a medium-temperature modified asphalt production device without mesophase includes a main tower and a reactor connected to the main tower. The main tower 1 is connected to several normal-pressure reactors 3 connected in series through a delivery pump 2; the reactor 3 is provided with an agitator 4, and each reaction kettle 3 is provided with a heating device 5; the upper part of the reaction kettle 3 is connected with an immersion cooler 8, and the immersion cooler 8 is connected with a gas-liquid separator 9, and the gas-liquid separation The lower part of the device 9 is connected with a flash oil tank 10; the lower part of the reactor 3 is connected with the asphalt intermediate tank 7 through an inverted U-shaped pipe 6, and the function of the inverted U-shaped pipe is to keep the liquid level in the reactor constant.

[0039] The gas-liquid separator 9 is connected to a liquid seal tank 11 , and the liquid seal tank 11 is connected to t...

Embodiment 2

[0043] Such as figure 1As shown, a medium-temperature modified asphalt production device without mesophase includes a secondary evaporator 1 and a reaction kettle connected to the secondary evaporator 1. The secondary evaporator 1 is connected to several normal-pressure reaction kettles 3 connected in series through gravity flow. connected; the reactor 3 is provided with a stirrer 4, and each reactor 3 is provided with a heating device 5; the upper part of the reactor 3 is connected with an immersion cooler 8, and the immersion cooler 8 is connected with a gas-liquid separator 9 The lower part of the gas-liquid separator 9 is connected to a flash oil tank 10; the lower part of the reactor 3 is connected to the asphalt intermediate tank 7 through an inverted U-shaped pipe 6, and the function of the inverted U-shaped pipe is to keep the liquid level in the reactor constant.

[0044] The gas-liquid separator 9 is connected with a liquid seal tank 11 , and the liquid seal tank 11...

Embodiment 3

[0048] The high-temperature tar is distilled under normal pressure, and the medium-temperature pitch is discharged from the secondary evaporator 1. The SP is 75°C, the TI is 14%, the QI is 4%, and the CV is 47%. Medium-temperature asphalt passes through three series-connected normal-pressure reactors in sequence. The reactors are heated and kept warm by high-temperature exhaust gas. The reaction temperature of the first kettle is 375°C, the second kettle is 380°C, and the third kettle is 375°C. The reaction time is 3 hours each (9 hours in total). Obtain medium temperature modified asphalt. SP is 93°C, TI is 27%, QI is 7%, CV is 54%, and there is no mesophase. The medium-temperature modified asphalt enters the asphalt middle tank through the inverted U-shaped pipe.

[0049] Others are the same as embodiment 2.

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
softening pointaaaaaaaaaa
softening pointaaaaaaaaaa
Login to View More

Abstract

The invention discloses a production apparatus of mid-temperature modified pitch without mesophase. The production apparatus comprises a second evaporator or a main tower, and reaction vessels connected with the second evaporator or the main tower; the second evaporator or the main tower is connected with a plurality of normal pressure reaction vessels in series connection via gravitational flow or a delivery pump; stirrers are arranged in the reaction vessels, a heating device is arranged next to each reaction vessel; the top of each reaction vessel is connected with an immersion cooler; the immersion coolers are connected with a gas-liquid separator; the lower part of the gas-liquid separator is connected with a flash evaporation oil groove; and the lower part of each reaction vessel is connected with a pitch intermediate tank. The invention also provides a production method of mid-temperature modified pitch without mesophase. According to the production method, mid-temperature modified pitch without mesophase is obtained by setting necessary control indexes. According to the production apparatus and the production method, mild reaction at a low temperature under normal pressure can be realized via reasonable arrangement of the production apparatus and controlling of mid-temperature pitch quality indexes, flashing oil mixing is not necessary, mid-temperature modified pitch without mesophase is obtained, oil gas generated by the reaction can be recycled effectively, and resources and energy are saved.

Description

technical field [0001] The invention relates to the field of coal chemical industry, in particular to a production device and production method of medium-temperature modified asphalt. Background technique [0002] The softening point of medium-temperature asphalt is low, but the β resin content and coking value are both low, and it is inconvenient to transport and long-distance transportation in summer. The smoke volume, loss and pollution of carbon enterprises are also large during production, and the conductivity and strength indicators of carbon products are also poor; The β-resin content and coking value of modified asphalt are both ideal, and the coking value of modified asphalt is higher than 50%. More cohesive coke can be generated during roasting, but the rheological properties become worse. During production, it needs to be heated to a relatively high temperature with heat transfer oil. The high temperature not only consumes a lot of energy, but also approaches or e...

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): C10C1/16C10C3/02
Inventor 杜亚平邵忠平吴其春
Owner BAOWU CHARCOAL MATERIAL TECH CO LTD