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Method for preparing catalytically hydrogenated biological asphalt

A bio-asphalt and catalytic hydrogenation technology, which is applied to the processing of tar asphalt/petroleum asphalt/natural asphalt by chemical methods, and the processing of tar asphalt/petroleum asphalt/natural asphalt by selective extraction, which can solve the development problems of the road industry and the supply and demand of asphalt Increased contradictions, rising asphalt prices and other issues, to achieve sustainable development, alleviate resource shortages, and improve quality

Active Publication Date: 2015-03-04
RES INST OF HIGHWAY MINIST OF TRANSPORT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the continuous consumption of oil, especially the continuous reduction of high-quality oil sources, the contradiction between supply and demand of asphalt has been increasing, and the price of asphalt has been rising, which has caused great trouble to the development of the road industry.

Method used

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  • Method for preparing catalytically hydrogenated biological asphalt
  • Method for preparing catalytically hydrogenated biological asphalt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Example 1 A preparation method of catalytic hydrogenation bio-asphalt

[0027] A method for preparing catalytically hydrogenated bio-asphalt, comprising the steps of:

[0028] 1) In the Parr high-pressure reactor in the United States, the pressure in the reactor is controlled by passing hydrogen to 10MPa, and under the condition of 150°C, the biomass pyrolysis oil is heated by the catalyst Pt / γ-Al 2 o 3 A hydrogenation reaction occurs under the action, and the reaction time is 90 minutes;

[0029] Among them, biomass pyrolysis oil is an oily product obtained after pyrolysis of corn stalks, which was purchased from a bioenergy company.

[0030] Catalyst selects commercially available product for use.

[0031] Wherein, the addition amount of the catalyst is 10% of the mass of the biomass pyrolysis oil.

[0032] 2) Leave the product obtained in step 1) to stand, the upper layer is the oil phase, and the lower layer is the water phase. After separation, take the upper l...

Embodiment 2

[0034] Example 2 A preparation method of catalytic hydrogenation bio-asphalt

[0035] 1) In the Parr high-pressure reactor in the United States, the pressure in the reactor is controlled by passing hydrogen to 4MPa, and under the condition of 300°C, the biomass pyrolysis oil is heated by the catalyst Pt / γ-Al 2 o 3 A hydrogenation reaction occurs under the action, and the reaction time is 30 minutes;

[0036] Among them, biomass pyrolysis oil is an oily product obtained after pyrolysis of wood chips, which was purchased from a bioenergy company.

[0037] Catalyst selects commercially available product for use.

[0038] Wherein, the addition amount of the catalyst is 0.5% of the mass of the biomass pyrolysis oil.

[0039] 2) Let the product obtained in step 1) stand still, the upper layer is the oil phase, and the lower layer is the water phase. After separation, take the upper layer oil phase and water at a volume ratio of 1:3, mix and stir at 30°C, and separate by filtratio...

Embodiment 3

[0041] Example 3 A preparation method of catalytic hydrogenation bio-asphalt

[0042] 1) In the Parr high-pressure reactor in the United States, the pressure in the reactor is controlled by passing hydrogen to 6MPa, and under the condition of 200°C, the biomass pyrolysis oil is heated by the catalyst Pt / γ-Al 2 o 3 A hydrogenation reaction occurs under the action, and the reaction time is 60 minutes;

[0043] Among them, biomass pyrolysis oil is an oily product obtained after pyrolysis of bamboo chips, which was purchased from a bioenergy company.

[0044] Catalyst selects commercially available product for use.

[0045] Wherein, the amount of catalyst added is 5% of the mass of biomass pyrolysis oil.

[0046] 2) Leave the product obtained in step 1) to stand, the upper layer is the oil phase, and the lower layer is the water phase. After separation, take the upper layer oil phase and water at a volume ratio of 1:10, mix and stir at 5°C, and filter and separate to obtain wat...

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Abstract

The invention relates to a method for preparing catalytically hydrogenated biological asphalt. The method comprises the following steps: (1) carrying out a hydrogenation reaction on biomass pyrolytic oil in the presence of a catalyst; (2) standing the product prepared in the step (1), separating, and extracting an upper oil phase to obtain an extract; (3) dehydrating and oxidizing the extract to obtain the biological asphalt. By adopting the preparation method, heavy components of biomass oil can be effectively utilized, waste is changed into valuable; after the biological asphalt is catalytically hydrogenated, the performance of the biological asphalt can be more stable and the quality of the biological asphalt can be improved. According to the biological asphalt prepared by the preparation method, the requirement of an asphalt pavement on petroleum asphalt can be reduced, stress caused by resource shortage can be relieved, and sustainable development of asphalt and roads can be realized since the biological asphalt belongs to renewable resources.

Description

technical field [0001] The invention relates to a method for preparing catalytic hydrogenation bio-asphalt, which belongs to the technical field of asphalt materials. Background technique [0002] Biomass, as the main energy source that can be recycled, has attracted attention at home and abroad in recent years, especially with the continuous development of biomass pyrolysis technology, it has promoted the production of many biomass pyrolysis oil companies. [0003] On the one hand, the current main use of biomass pyrolysis oil is to burn directly as primary fuel or to refine biodiesel. The former has a low calorific value due to the high moisture content of biomass pyrolysis oil, which in turn affects the selling price of the oil. , increasing the operating pressure of biomass pyrolysis oil enterprises. The latter has poor thermal stability due to the poor thermal stability of biomass pyrolysis oil, resulting in poor thermal stability of biodiesel refined from it, which re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10C3/02C10C3/08C10C3/04
CPCC10C3/02C10C3/04C10C3/08
Inventor 曹东伟何敏张海燕陈艳巨王红丽
Owner RES INST OF HIGHWAY MINIST OF TRANSPORT
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