Method for preparing high-quality gasoline from cracking biological oil

A bio-oil and high-quality technology, applied in the preparation of liquid hydrocarbon mixtures, biological raw materials, petroleum industry, etc., can solve the problems of high reaction temperature, rapid coking and deactivation, complex reactions, etc., and achieve low cost, simple process, and raw materials Effects from a wide range of sources

Inactive Publication Date: 2012-09-19
赵晨
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of sulfurized catalyst is extremely sensitive to water, and is prone to rapid coking and deactivation due to the conversion of high oxygen-containing compounds; another way is to directly use molecular sieve ZSM-5 to achieve a series of complex dehydration at high temperature (500-600 ° C) , pyrolysis, deoxygenation, polymerization, aromatic cyclization and other reactions to achieve the deoxygenation process of bio-oil
However, the reaction temperature of this process is high and the reaction is complicated. 80% of the organic molecules in the bio-oil are converted into carbon precipitates and the hydrocarbons obtained are less than 20%.

Method used

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  • Method for preparing high-quality gasoline from cracking biological oil
  • Method for preparing high-quality gasoline from cracking biological oil
  • Method for preparing high-quality gasoline from cracking biological oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1: Hydrodeoxygenation of initial bio-oil as raw material to prepare gasoline hydrocarbon fuel

[0021] This embodiment directly uses the initial bio-oil rich in cellulose, hemicellulose and lignin cracked organic small molecule liquid mixture as raw material (component analysis see figure 1 A, mainly including furans C 5 -C 6 derivatives and phenolic C 6 -C 9 Derivatives), through one-step catalytic hydrodeoxygenation of the organic small molecule mixture to prepare gasoline hydrocarbon fuels. The specific method is: take 100ml of crude bio-oil (red and black viscous liquid cracked from pine trees, purchased from BTG-BTL company in the Netherlands) and extract it three times with 50ml of cyclohexane, and combine the extracts after the extraction. The extract was concentrated by distillation under reduced pressure, together with 2.0g Ni / HMFI catalyst (20.wt%, self-made), and 80ml water were added to the high-pressure Parr kettle (the pH value of the reaction ...

Embodiment 2

[0025] Example 2: Preparation of gasoline hydrocarbon fuels using lignin-derived phenolic compounds as raw materials

[0026] In this example, lignin-derived C6 -C 9 The functionalized 4-propylphenol, 2-methoxy-4-propylphenol and 2,6-dimethoxy-4-propylphenol are used as raw materials, and the hydrocarbons are prepared by direct one-step hydrodeoxygenation. The specific method is as follows: 0.01 mol of phenolic compound, 2.0 g of 20 wt.% Ni / HMFI and 80 ml of water are mixed and then added to the high-pressure Parr kettle. After the reactor was replaced with hydrogen three times, 50 bar of hydrogen was charged under normal pressure, and the temperature was raised to 250° C. to react for 2 hours. After the reaction, it was naturally cooled to room temperature, and the organic phase was extracted with ethyl acetate for qualitative and quantitative detection by GC and GC-MS, and the gas products were detected by IR. The product conversion results after the hydrodeoxygenation rea...

Embodiment 3

[0032] Example 3: Preparation of gasoline hydrocarbon fuels using cellulose and hemicellulose derived furan compounds as raw materials

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Abstract

The invention discloses a method for preparing high-quality gasoline from cracking biological oil and relates to the technical field of hydrocarbon fuel preparation. According to the method, crude biological oil, lignocellulose, xylogen, phenolic monomer derived from the xylogen or/and lignin of the xylogen, cellulose, and a furan compound derived from the cellulose are used as raw materials. Under the catalytic action of Ni/HMFI catalyst, the hydrocarbon fuel is obtained through one-step hydrogenation deoxidizing conversion. Most of hydrocarbon products in obtained refined biological oil belong to the range of naphthenic hydrocarbon and aromatic hydrocarbon, does not contain sulphur and nitrogen, and belongs to high-octane high-quality clean gasoline fuel. The method has the advantage of being economical (source of the raw materials is wide and cost is low), simple in process, environment-friendly and easy to industrialize and the like. The catalyst is low in cost, efficient and easy in mass production, and products have significant application requirements. The method plays an important role in the field of replacement of fossil energy by biomass energy in the future, and is wide in application prospects.

Description

technical field [0001] The invention relates to a method for preparing hydrocarbon fuels, in particular to a method for preparing high-quality gasoline by cracking bio-oil. Background technique [0002] A high yield (about 85%) liquid cracked bio-oil can be obtained by fast cracking or high-pressure liquefaction of lignocellulose. Bio-oil is considered to be a promising energy carrier, but due to its complex composition, high water and oxygen content, low combustion calorific value, strong corrosion, and easy deterioration, bio-oil cannot be directly used as a fuel at this stage. use. Now, bio-oil is mainly used for direct combustion to provide heat for boilers, etc., but due to the calorific value of bio-oil (19MJ·Kg -1 ) than ordinary hydrocarbon fuels (42-44MJ·Kg -1 ) is much lower, so this is only a very inefficient way of utilizing biomass in the original form. Bio-oil has also been tried to be used as an additive for diesel, but due to the characteristics of low ca...

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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