Method for preparing high-quality gasoline and diesel oil from lignin pyrolysis oil

A technology for lignin cracking oil and lignin, which is applied in the field of using lignin cracking oil to prepare high-quality gasoline and diesel oil, can solve problems such as environmental pollution and waste of resources, and achieves wide source of raw materials, low cost, and ingenious and efficient coupling of reaction processes. Effect

Inactive Publication Date: 2012-09-19
赵晨
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  • Application Information

AI Technical Summary

Problems solved by technology

But so far, lignin is mainly used as a fuel with low combustion value, not only has not been effectively utilized to cause a waste of resources, but also produces a large amount of lignin as waste (such as the waste from paper mills) while utilizing cellulose. A large amount of alkali lignin waste liquid) causes serious environmental pollution

Method used

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  • Method for preparing high-quality gasoline and diesel oil from lignin pyrolysis oil
  • Method for preparing high-quality gasoline and diesel oil from lignin pyrolysis oil
  • Method for preparing high-quality gasoline and diesel oil from lignin pyrolysis oil

Examples

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Effect test

Embodiment 1

[0020] Embodiment 1: take 4-propylphenol as the conversion of raw material on different solid acids

[0021] In this example, the raw material of 4-propylphenol, a representative derivative of lignin (purchased from Aldrich Company), was used to test the product composition of its conversion on different solid acid catalysts. The specific method is as follows: take 0.01mol raw material, mix with 0.04g Pd / C catalyst (5wt.%, purchased from Aldrich Company), 2.0g solid acid (see Table 1), and 80ml water and add them to the high-pressure Parr kettle together. At room temperature, the gas was ventilated three times with hydrogen, and then filled with hydrogen to 50 bar, and then the temperature was raised to 200° C. for 0.5 hour, and the stirring speed was 680 rpm. Naturally cool to room temperature after the reaction, the product is automatically divided into two phases, the upper layer is the oil phase of the organic hydrocarbon mixture, and the lower layer is the water layer. A...

Embodiment 2

[0030] Example 2: Hydroalkylation / deoxygenation conversion using 4-propylphenol as raw material under different catalysts and conditions

[0031] In this example, 4-propylphenol, a representative derivative of lignin, was used as raw material to test its hydroalkylation and deoxygenation conversion under different catalysts and reaction conditions. The specific method is: take 0.01mol raw material, and 0.04g Pd / C or Pt / C or Ru / C or Pt / C catalyst (5wt.%, purchased from Aldrich company) or 2.0g Ni-based catalyst (self-made), 2.0g Hβ (Si / Al=150) molecular sieve or Pd / Hβ catalyst (self-made) (see Table 2 for the specific catalyst ratio) and 80ml of water were mixed and added to the autoclave Parr. After exchanging hydrogen gas three times at room temperature, hydrogen gas was charged to 50 bar, and then the temperature was raised to the reaction temperature for 0.5 hours (see Table 2 for specific reaction conditions), and the stirring speed was 680 rpm. After the reaction was fin...

Embodiment 3

[0038] Example 3: Hydroalkylation / deoxygenation conversion starting from different lignin-derived phenolic compounds

[0039] In this embodiment, the main components of lignin cracking oil, phenol, 4-methylphenol, 4-ethylphenol, 4-propylphenol, 2-methoxyl-4-acetonylphenol, 2-methoxyl-4 -Methylphenol, 2-methoxy-4-ethylphenol and 2-methoxy-4-propylphenol were used as raw materials to test their hydroalkylation / deoxygenation conversion activity under the Pd / Hβ catalyst. The specific method is as follows: 0.01mol of phenolic compound, 2.0g of 0.1wt.% Pd / Hβ catalyst and 80ml of water are mixed and then added to the high-pressure Parr kettle. After replacing the reaction vessel with hydrogen for three times, 50 bar of hydrogen was charged under normal pressure, and the temperature was raised to 200° C. to react for 2 hours, and then to 250° C. to react for 0.5 hours. Naturally cool to room temperature after the reaction, carry out the qualitative and quantitative detection of GC an...

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Abstract

The invention discloses a method for preparing high-quality gasoline and diesel oil from lignin pyrolysis oil, and belongs to the technical field of preparation of liquid fuel. The method comprises the steps of using lignin pyrolysis oil, crude biological oil, lignin, phenolic monomer and/or dipolymer derived from the lignin as materials, and converting the materials into C6-C9 gasoline and C10-C20 diesel oil hydrocarbon fuel with adjustable ratio under the catalytic action of Ni-based or Pd-based catalyst loaded on a molecular sieve, wherein the major ingredients of the obtained gasoline are C6-C9 cycloalkanes and aromatic hydrocarbons and belong to clean gasoline fuel with high octane value and high quality; while the major ingredients of the diesel oil are C12-C20 bicyclic alkanes, the cetane number is between 51-60, and the diesel oil does not contain polycyclic aromatic compound or sulphur or nitrogen and belongs to the clean high-quality diesel fuel. The method disclosed by the invention has the advantages of wide material source, low cost, clever reaction process, efficient coupling, simple and green process, easiness of industrialization, large product requirement, very broad application prospect and the like.

Description

technical field [0001] The invention relates to a method for preparing hydrocarbon fuels, in particular to a method for preparing high-quality gasoline and diesel oil from lignin cracking oil. Background technique [0002] The preparation of high-quality liquid fuel from biomass has a huge market application demand, and it is a field of new energy development that urgently needs to invest in high-tech scientific and technological forces. At the present stage, the relatively mature research fields of converting biomass into liquid energy that have been put into market development and application mainly focus on two aspects. On the one hand, it is the development and utilization of bioethanol. The raw materials for the preparation of bioethanol can be directly derived from sugars, and then bioethanol can be produced through a simple fermentation process. Worldwide, Brazil has taken the lead in realizing the application of 80% bio-ethanol-doped bio-gasoline in the world due to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G3/00C10G1/08
CPCY02P30/20
Inventor 赵晨
Owner 赵晨
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