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Technology for producing modified pitch by one-step heating

A technology of modified asphalt and production technology, which is applied in the processing of tar, tar processing by distillation, and tar removal processing by water, which can solve the problem of expensive equipment parts, unsecured product quality, and failure to meet export standards. and other problems, to achieve the effect of reducing energy consumption, obvious energy saving effect and good product quality

Active Publication Date: 2015-06-24
HENAN KAITAN NEW MATERIAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation process of this process is complicated, the product quality is average, and the export standard cannot be reached, the energy consumption is high, and the environment is polluted.
However, the foreign process generally adopts the process of double furnace and double polymerization tower, which requires a large investment and expensive equipment and accessories.
The above-mentioned production processes all need to use heat sources such as coal gas to heat reactors such as reactors to control the reaction temperature during the upgrading process, which consumes a lot of energy and does not conform to the development trend of low-carbon economy.
And the way of external heating makes the heat conduction in the reactor uneven, and the product quality cannot be guaranteed

Method used

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  • Technology for producing modified pitch by one-step heating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] One-time heating modified asphalt production process, the specific process is as follows:

[0024] 1) Mix the raw material tar with the solvent and then stir evenly. The homogenized tar is pumped into the super centrifuge 2 for separation of light and heavy components through dehydration and deslagging pump, and the separated light and heavy components enter the light component storage tank 6 respectively. and heavy fraction storage tank 7;

[0025] The solvent is washing oil, and the amount of solvent added is 20% of the weight of the raw material tar; the centrifugal force during centrifugation is 3000G, and the centrifugation is 5min. After centrifugation, the quinoline insoluble content of the heavy component tar is greater than 1%, and the quinoline insoluble content of the light component tar is less than 1% is the light component;

[0026] 2) The light component obtained by centrifugation in step 1) is pumped out into the dehydration tar tank, and then pum...

Embodiment 2

[0031] One-time heating modified asphalt production process, the specific process is as follows:

[0032] 1) Mix the raw material tar with the solvent and then stir evenly. The homogenized tar is pumped into the super centrifuge 2 for separation of light and heavy components through dehydration and deslagging pump, and the separated light and heavy components enter the light component storage tank 6 respectively. and heavy fraction storage tank 7;

[0033] The solvent is a 1:1 mixture of light oil and washing oil, and the amount of solvent added is 18% of the weight of the raw material tar; the centrifugal force during centrifugation is 3000G, and the centrifugation is 5min. After centrifugation, the quinoline insoluble content of the heavy component tar is greater than 1%, and the quinoline insoluble content of the light component tar is less than 1% is the light component;

[0034] 2) The heavy components obtained by centrifugation in step 1) are pumped out into th...

Embodiment 3

[0039] One-time heating modified asphalt production process, the specific process is as follows:

[0040] 1) Mix the raw material tar (the raw material tar is in the raw material tar storage tank 1) with the solvent, then stir and homogenize, and the homogenized tar is sent to the super centrifuge 2 by dehydration and deslagging pump for separation of light and heavy components, and the separated The light and heavy components enter the light component storage tank 6 and the heavy component storage tank 7 respectively;

[0041] The solvent is light oil, and the amount of solvent added is 15% of the weight of the raw material tar; the centrifugal force during centrifugation is 3000G, and the centrifugation is 2min. After centrifugation, the quinoline insoluble content of the heavy component tar is greater than 1%, and the quinoline insoluble content of the light component tar is less than 1% is the light component;

[0042] 2) The light components obtained by centrifug...

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Abstract

The invention relates to a technology for producing modified pitch by one-step heating. An alkali-free technology is adopted, only one tube furnace is used during heating, an energy saving effect is obvious, the modified pitch with ultra-low alkali metal ions can be produced, and the quality of products is high. A dehydration column reboiler is used for heating by sufficiently using heat of flashing oil and heat of the modified pitch, and energy consumption is greatly reduced. The technology for producing the modified pitch by one-step heating has the advantages that energy is saved, the quality of products is high, corrosion of equipment is slowed down, investment is low and the like.

Description

technical field [0001] The invention relates to the technical field of modified asphalt production, in particular to a production process of primary heating modified asphalt. Background technique [0002] Asphalt is a dark brown complex mixture composed of hydrocarbons of different molecular weights and their non-metallic derivatives in a liquid state. It is a waterproof, moisture-proof and anti-corrosion organic gelling material. Used in coatings, plastics, rubber and other industries, as well as paving roads, etc. In civil engineering, asphalt is a widely used waterproof material and anti-corrosion material. It is mainly used in the waterproofing of roofs, grounds and underground structures, and the anti-corrosion of wood and steel. Asphalt is also a widely used pavement structure cementing material in road engineering. It can be used to build asphalt pavement with different structures after it is matched with different mineral materials in proportion. The production of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10C1/18C10C1/16C10C1/02C10C1/08C10C1/12C10C1/00
CPCC10C1/00C10C1/02C10C1/08C10C1/12C10C1/16C10C1/18
Inventor 艾护民周云辉赵斌潘晓磊杨帅远
Owner HENAN KAITAN NEW MATERIAL
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