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Method for preparing high-quality gasoline directly from lignin by one-pot process

A lignin and high-quality technology, applied in the preparation of liquid hydrocarbon mixtures, petroleum industry, biological raw materials, etc., can solve the problems of high energy consumption, low yield, harsh reaction conditions, etc., and achieve large demand for products and low cost , The effect of simple process

Inactive Publication Date: 2013-01-16
赵晨
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  • Application Information

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Problems solved by technology

However, the yields of these methods are very low, and the reaction conditions used are very harsh and the energy consumption is very high.

Method used

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  • Method for preparing high-quality gasoline directly from lignin by one-pot process
  • Method for preparing high-quality gasoline directly from lignin by one-pot process
  • Method for preparing high-quality gasoline directly from lignin by one-pot process

Examples

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Embodiment 1

[0016] Example 1: One-pot conversion of organic lignin into hydrocarbon fuels

[0017] In this example, organic lignin was used as raw material to test its conversion on different Ni-based catalysts. A schematic diagram of the main conversion strategies we apply can be found in Figure 1 . The specific method is: take 4g of lignin raw material, mix it with 2g of catalyst (prepared by yourself) (see Table 1), and 100ml of hexadecane and add them to the high-pressure Parr kettle together. At normal temperature, the gas was ventilated three times with hydrogen, and then filled with hydrogen to 50 bar, and then the temperature was raised to 250° C. for 4 hours, and the stirring speed was 680 rpm. After the reaction is finished, it is naturally cooled to room temperature, and the product hydrocarbons are dissolved in hexadecane and can be used together with a solvent without separation, so the process is simpler, more economical and more effective. After the reaction, the cataly...

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Abstract

The invention discloses a method for preparing high-quality gasoline directly from lignin by a one-pot process, and the method belongs to the technical field of new energy resources. Untreated lignin is used as a raw material and is converted into a high-quality C5-C10 gasoline hydrocarbon material through one step under the catalysis of an Ni-based catalyst carried on a molecular sieve; the main ingredients of the obtained gasoline are C5-C10 naphthenic hydrocarbon and aromatic hydrocarbon; and the gasoline is a clean gasoline fuel with high quality and high octane rating, and the octane rating is between 90 and 120. The method for preparing high-quality gasoline directly from lignin by the one-pot process has the beneficial effects that the source of materials is broad, the cost is low, the reaction process is environment-friendly and efficient, solvents and products are mixed together and can be reused, the process is simple, the coupling is efficient, industrialization can easily be implemented, and the gasoline has a large demand in the liquid automobile fuel market; and therefore, the method has a broad application prospect.

Description

technical field [0001] The invention relates to a method for preparing green hydrocarbon fuel in new energy, in particular to a method for preparing high-quality gasoline by using lignin. Background technique [0002] Lignin is a kind of natural biological resource with a very large storage capacity (second only to cellulose) in nature. Its molecular structure is based on the phenylpropane derivative C 9 It is a macromolecular polymer with a three-dimensional structure formed by connecting the units with carbon-oxygen bonds (C-O-C) or carbon-carbon bonds (C-C). The main form of utilization of lignin today is to obtain heat energy in the form of combustion. Moreover, the massive discharge of a large amount of alkali lignin waste liquid discharged in paper mills causes serious environmental pollution. [0003] Lignin has a very dense and complex structure, so its utilization level has been relatively low, and lignin resources have not been effectively utilized, resulting in ...

Claims

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Application Information

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