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

A lignin cracking oil and lignin technology, which is applied in the field of producing high-quality gasoline and diesel oil by using lignin cracking oil, can solve the problems of waste of resources, environmental pollution, etc., and achieve low cost, wide range of raw material sources, and ingenious and efficient coupling of the reaction process Effect

Inactive Publication Date: 2014-12-31
赵晨
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  • Summary
  • Abstract
  • Description
  • Claims
  • 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

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1: Conversion of 4-propylphenol on different solid acids

[0021] In this example, 4-propylphenol raw material (purchased from Aldrich Company), a representative derivative of lignin, was used to test the product composition of its conversion on different solid acid catalysts. The specific method is as follows: take 0.01 mol of raw materials, add 0.04 g of Pd / C catalyst (5 wt.%, purchased from Aldrich), 2.0 g of solid acid (see Table 1), and 80 ml of water into a high-pressure Parr kettle. After ventilating with hydrogen for three times at room temperature, hydrogen is charged to 50 bar, and then the temperature is raised to 200° C. for 0.5 hour reaction, and the stirring speed is 680 rpm. After the reaction is over, it is naturally cooled to room temperature, and 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. After the organic phase was extracted wi...

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 to test its hydroalkylation and deoxygenation conversion under different catalysts and reaction conditions. The specific method is: take 0.01 mol of raw material, and 0.04g Pd / C or Pt / C or Ru / C or Pt / C catalyst (5wt.%, purchased from Aldrich) or 2.0g Ni-based catalyst (homemade), 2.0g Hβ (Si / Al=150) molecular sieve or Pd / Hβ catalyst (homemade) (see Table 2 for specific catalyst ratio), mixed with 80ml of water and added to the high-pressure Parr kettle. At room temperature, it was ventilated with hydrogen for three times and then filled with hydrogen to 50 bar, and then heated 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, the product is naturally cooled to r...

Embodiment 3

[0038] Example 3: Hydroalkylation / deoxygenation conversion using different lignin-derived phenolic compounds as raw materials

[0039] In this example, phenol, 4-methylphenol, 4-ethylphenol, 4-propylphenol, 2-methoxy-4-acetone phenol, and 2-methoxy-4 were selected as the main components of lignin pyrolysis oil. -Methylphenol, 2-methoxy-4-ethylphenol and 2-methoxy-4-propylphenol were used as raw materials to test their hydroalkylation / deoxygenation conversion activity under Pd / Hβ catalyst. The specific method is to take 0.01 mol of phenolic compound, 2.0 g of 0.1 wt.% Pd / Hβ catalyst and 80 ml of water, mix them and add them to the high-pressure Parr kettle. After replacing the reactor with hydrogen three times, it was filled with 50 bar of hydrogen under normal pressure, heated to 200°C and reacted for 2 hours, and then heated to 250°C for 0.5 hour. After the reaction, it was naturally cooled to room temperature, the organic phase was extracted with ethyl acetate, and then the qu...

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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 using lignin cracked oil. Background technique [0002] The preparation of high-quality liquid fuels from biomass has a huge market application demand, and it is a new energy development field that urgently needs to invest in high-tech science and technology. At this stage, the research fields of conversion of biomass into liquid energy, which are relatively mature and have been put into market development and application, are mainly concentrated in 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 the bioethanol is produced through a simple fermentation process. Worldwide, Brazil has taken the lead in realizing the application of biogasoline doped with 80% bioethanol due to its advantages ...

Claims

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Application Information

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