JP2006063310A - Method and apparatus for producing wood-biomass-derived liquid fuel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and an apparatus for producing a high-safety and efficient wood-biomass-derived liquid fuel. <P>SOLUTION: A sample material made of wood biomass is subjected to pyrolytic liquefaction using a petroleum organic solvent under moderate reaction conditions to separate a pyrolysate, thereby efficiently obtaining coal oil and light to heavy oil fractions. Liquefaction can be efficiently continued through circulation use of the thus obtained liquid fuel as a solvent of its own. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to a method and an apparatus for producing a liquid fuel derived from woody biomass.

Biomass is defined as an inorganic substance such as water or carbon dioxide converted into an organic substance such as a living organism by photosynthesis using solar energy. Since these biomasses are biochemically decomposed again into inorganic substances after they die, they can be recycled continuously and are attracting attention as environmentally friendly energy resources because they are carbon neutral hydrocarbon resources. However, building waste materials, packaging materials, thinning materials and sawdust, known as woody biomass, are mostly incinerated except for some being used as fuel chips, etc. The current situation is that it is not recycled.

When recycling woody biomass as an energy resource, woody biomass has a problem of poor handling due to its high water content, low unit calorific value, and a heterogeneous solid. In addition, methods of reacting woody biomass at high temperature and pressure and gasifying it to recover hydrogen, and methods of producing alcohol by fermenting for a long time have been studied. There is a problem that alcohol cannot be used as a fuel and its usefulness is low.

Small-scale establishments and factories that emit woody biomass use equipment with small-scale and mild operating conditions to recycle the discharged woody biomass as energy resources, produce the required amount of fuel, and self-sufficiency energy It is desirable to build a mold factory. For this purpose, a direct liquefaction method for obtaining kerosene / light oil to heavy oil fraction from woody biomass is optimal. As a conventional direct liquefaction method, a method is known in which water is used as a solvent, alkali is used as a catalyst, and the reaction is performed under a high-pressure reaction condition of 300 ° C. and about 100 atm (see, for example, Non-Patent Document 1). Such a liquefaction method has a high risk because of its high pressure, and there is a problem that an organic acid such as maleic acid is obtained as a by-product. Therefore, development of an energy conversion technique that can obtain kerosene / light oil to heavy oil fractions efficiently under simple reaction conditions with high safety and simple process is desired.
Minowa Toro, Nichi-Nen Magazine, 78, 252, 1999

This invention makes it a subject to provide the manufacturing method and manufacturing apparatus of the liquid fuel derived from a woody biomass which are highly safe, simple and efficient.

As a result of intensive studies to solve the above problems, the present inventors can efficiently obtain kerosene / light oil to heavy oil fractions under mild reaction conditions by using an organic solvent instead of water as a solvent. As a result, the present invention has been completed.

The direct liquefaction method using the organic solvent of the present invention is a very clean method that allows mild reaction conditions at low pressure and does not produce an organic acid as a byproduct. Moreover, there is an advantage that the reaction can be continued more efficiently by circulating and using the obtained liquid fuel as an in-house solvent.
That is, the present invention is as follows.

(1) (A) mixing a sample material made of woody biomass with an organic solvent, and liquefying at a temperature and pressure at which thermal decomposition is performed;
(B) separating the decomposition product of the test material generated in the step (A) to obtain a woody biomass-derived liquid fuel, and a method for producing a woody biomass-derived liquid fuel, .
(2) By circulating a part of the liquid fuel derived from the woody biomass as an in-house solvent,
The method for producing a liquid fuel derived from woody biomass according to claim 1, wherein the woody biomass is continuously liquefied.
(3) In the liquefaction step (A), the organic solvent to be used is derived from the woody biomass according to (1) or (2) above, wherein the organic solvent to be used is 1 to 10 times the test material Method for producing liquid fuel.
(4) In the liquefaction step (A), the organic solvent to be used is a heavy oil fraction having an atmospheric pressure boiling point of 300 ° C. or higher, which is derived from the woody biomass according to any one of the above (1) to (3) Method for producing liquid fuel.
(5) The method for producing a liquid fuel derived from woody biomass according to any one of the above (1) to (4), wherein the woody biomass used for the test material is woody industrial waste.
(6) The manufacturing method of the liquid fuel derived from the woody biomass in any one of said (1)-(5) whose moisture content of a test material is 10 weight% or less.
(7) The above (1) to (6) further comprising a step of crushing the woody biomass used for the test material.
The manufacturing method of the liquid fuel derived from the woody biomass in any one of.
(8) In the said liquefaction process (A), heating temperature is adjusted to 250 to 400 degreeC, The manufacturing method of the liquid fuel derived from the woody biomass in any one of said (1)-(7) characterized by the above-mentioned .
(9) In the said liquefaction process (A), a pressure is adjusted to atmospheric pressure or more and less than 15 atmospheres, The manufacturing method of the liquid fuel derived from the woody biomass in any one of said (1)-(8) characterized by the above-mentioned .
(10) (A) a mixing tank for mixing an organic solvent with the test material;
(B) a reaction vessel that performs a liquefaction step of heat-treating the mixture at a temperature at which thermal decomposition occurs;
(C) A separation tank for separating a decomposition product of the test material generated by heating and performing a separation step of obtaining a liquid fuel derived from woody biomass,
(D) An apparatus for producing a woody biomass-derived liquid fuel comprising a circulation path that circulates in the mixed layer using a part of the woody biomass-derived liquid fuel as a self-solvent.
(11) The apparatus for producing a liquid fuel derived from a woody biomass according to (10), further comprising a crushing tank that crushes the woody biomass and performs a crushing step for obtaining a test material derived from the woody biomass.

The method and apparatus for producing liquid fuel derived from woody biomass of the present invention can obtain kerosene / light oil to heavy oil fractions under low pressure and mild reaction conditions. Furthermore, liquefaction can be continued efficiently by circulating and using the obtained liquid fuel as an in-house solvent. Taking advantage of this advantage, it can be used to construct small-scale energy self-sufficient factories.

The woody biomass of the present invention includes grass, waste wood, thinned wood, large sawdust, fuel chips, etc.
Examples include waste trees after harvesting crops such as tomatoes and corn. Architectural waste such as cedar can also be used, and it may be a wall paper containing a vinyl chloride for construction, a gypsum, a cement, a paint, an adhesive, an antiseptic and other impurities. Any woody biomass can be used as the raw material of the present invention, but a dry one having a low water content is particularly preferable.

The woody biomass of the present invention can be pulverized in advance with a tower mill (NE010 manufactured by Japan Eirich Co., Ltd.) or the like so that it can be transferred into the apparatus as a slurry containing an organic solvent. The pulverized sample is preferably further dried, and a test material having a water content of 10% by weight or less can be used.

In the present invention, an organic solvent is used as a liquefaction solvent for liquefying woody biomass. As the organic solvent of the present invention, anthracene, naphthalene, tetralin and the like can be used, and a part of a heavy oil fraction etc. excluding necessary fractions such as kerosene and light oil among liquid fuels produced by liquefaction is used as an in-house solvent. It can also be used. In the present invention, the self-solvent is used to mean a liquid fuel produced from woody biomass or a part thereof. The self-solvent has high affinity with the raw material, and can increase the yield of liquid fuel. Further, the circulation of the self-solvent allows the liquid fuel to be synthesized repeatedly without the addition of an organic solvent from the outside. The organic solvent added at the beginning of the liquefaction step may be any organic solvent, but is preferably a heavy oil fraction having an atmospheric pressure boiling point of 300 ° C. or higher, such as anthracene.

In the present invention, by using an organic solvent having a high boiling point or a self-solvent as a liquefying solvent, liquefaction is mainly performed by a thermal decomposition reaction, and a low pressure is maintained even in the liquefaction process. Furthermore, since water is not used as a liquefied solvent, high-quality liquid fuels that do not contain organic acids are obtained, and only inorganic gases that can be discharged into the atmosphere, such as carbon monoxide and carbon dioxide, are produced, which is highly safe. . On the other hand, in the conventional method using water as a liquefaction solvent, liquefaction is performed by thermal decomposition and hydrolysis. Since water has a low boiling point and becomes water vapor in a high-temperature liquefaction process, it causes high pressure. Furthermore, there is a problem that a low-quality liquid fuel containing organic acids produced by hydrolysis can be obtained.

The mixing ratio of the test material of the present invention and the organic solvent is sufficient if it is fluid enough to transfer the slurry as a slurry, and a ratio of 1: 1 to 1:10 is preferable. The liquefaction step can be carried out in a high-temperature and high-pressure pressure device such as an electromagnetic induction stirring autoclave (SUS316, manufactured by Suzuki Rikagaku). After inserting the mixture of the test material and the organic solvent into the pressure vessel and sealing, replacing with nitrogen gas or hydrogen gas, and further filling this gas to 0.1 to 3.0 MPa to set the initial pressure, Predetermined temperature (250 ° C to 400 ° C) with an external electric furnace (Suzuki Riken, etc.)
), The contents are horizontally agitated from a temperature rise to a predetermined temperature, and then cooled to room temperature immediately after reaching the predetermined temperature. The conditions for the liquefaction step of the present invention may be a reaction temperature of 250 ° C. to 400 ° C., and a high yield of 350 ° C. to 400 ° C. is particularly preferable. The reaction pressure is preferably less than 15 atmospheres.

The production of the liquid fuel derived from the woody biomass of the present invention can be appropriately carried out depending on the reaction conditions such as temperature, pressure, and solvent amount. In the construction of a self-sufficient energy factory or the like that is the subject of the present invention, a required amount of liquid fuel can be obtained with a continuous device using woody biomass more than twice the weight of petroleum that obtains the required energy. Furthermore, since the residue obtained is mainly composed of a component in which refractory lignin is slightly decomposed, it can be added again as a test material to the cycle of the liquefaction process or used as a raw material for petroleum products. Moreover, since the gas produced | generated by a liquefaction process has carbon monoxide and a carbon dioxide as a main component, it can be discarded as it is. The woody biomass-derived liquid fuel obtained by the present invention can be used as a raw material for petroleum products as oils such as gasoline, petroleum, and kerosene.

The manufacturing apparatus of the liquid fuel derived from the woody biomass of the present invention includes (A) a crushing tank for crushing the woody biomass and performing a crushing step of obtaining the woody biomass-derived test material, and (B) the test material. (C) a reaction tank for performing a liquefaction process in which the mixture is heat-treated at a temperature at which thermal decomposition occurs, and (D) a decomposition product of the test material generated by heating. A separation tank that performs a separation step for obtaining a liquid fuel derived from woody biomass, and (E) a circulation path that circulates to the mixing tank using a part of the liquid fuel derived from woody biomass as an in-house solvent. A high-temperature and high-pressure pressure device such as a commercially available tower mill (NE010, manufactured by Japan Eirich Co., Ltd.), an electromagnetic induction stirring autoclave (SUS316, manufactured by Suzuki Rikagaku Co., Ltd.), or the like can be used. In addition, according to the present invention, since the liquefaction process can be performed at a pressure of less than 15 atm, a manufacturing apparatus can be advantageously obtained in terms of apparatus materials without using high-grade materials.

  Hereinafter, although the detail of this invention is shown in an Example, this invention is not limited to this.

Production of liquid fuel derived from woody biomass 200 g of iron balls having a diameter of 6 mm and about 10 kg of iron balls were charged as a grinding medium into a tower mill (NE010 manufactured by Nihon Eirich Co., Ltd.), and dry pulverized in the atmosphere at 500 rpm for 1 hour. The obtained ground samples of cedar were dried under reduced pressure at 110 ° C. for 3 hours to obtain test materials.
10.0 g of the cedar specimen obtained above and 60.0 g of anthracene as an organic solvent were mixed, sealed in an electromagnetic induction stirring autoclave having an internal volume of 200 ml, and the inside was replaced with nitrogen gas. After the nitrogen gas was filled up to 0.1 MPa and the initial pressure was set, the contents were heated to 300 ° C. in an external electric furnace (manufactured by Suzuki Rikagaku Co., Ltd.) to perform a liquefaction reaction. The contents were stirred horizontally until the temperature reached 300 ° C from the temperature increase, and immediately after reaching 300 ° C, the contents were air-cooled to room temperature. After the reaction, the total amount of the produced gas (Gas) is collected in a tedlar bag, and an absolute calibration curve method using a mixed standard gas (manufactured by Nippon Oxygen Co., Ltd.) whose composition ratio is known by gas chromatography (GC-9A, manufactured by Shimadzu Corporation). The composition analysis was performed by quantifying by. The contents were fractionated into a fraction soluble in acetone (hereinafter referred to as AS or WIAS: liquid fuel) and a fraction insoluble in acetone (hereinafter referred to as AI or WIAI: abbreviated as residue). In addition, when boiling components other than water are not generated, they can be separated in this way, but when a boiling component equivalent to water is generated, the same fraction after distillation is allowed to stand before extraction with acetone. Therefore, oil / water separation (water extraction, also indicated as WI) can be performed. The yield of each product per test material was calculated, and further, the elemental analysis of AS and AI was performed by measuring the ash content based on JIS-M-8812 and JIS-M.
It was carried out by measuring carbon, hydrogen, and nitrogen content based on -8813, and the water yield (H ₂ O) was calculated from the difference in elemental composition before and after the reaction. The water yield in the present invention is calculated by assuming that the difference between the hydrogen and oxygen weight of the test material and the sum of the hydrogen and oxygen weight of each product is water. The results are shown in Table 1 for both Example 2, Comparative Example 1, and Comparative Example 2.

10.0 g of the cedar specimen obtained in Example 1 and 60.0 g of anthracene as the organic solvent
Were mixed and sealed in an electromagnetic induction stirring autoclave with an internal volume of 200 ml, and the inside was replaced with nitrogen gas. Nitrogen gas was filled up to 3.0 MPa, and thereafter the liquefaction reaction and composition analysis were performed in the same manner as in Example 1.

Comparative Example 1

Instead of using 10.0 g of the cedar sample material obtained in Example 1 and the organic solvent anthracene as a solvent, pure water 60.0 g was used, and 5 wt% of sodium hydroxide was added as a catalyst and mixed. The mixture was sealed in an electromagnetic induction stirring autoclave with an internal volume of 200 ml and the inside was replaced with nitrogen gas. Nitrogen gas was filled up to 0.1 MPa, and thereafter the liquefaction reaction and composition analysis were performed in the same manner as in Example 1.

Comparative Example 2

Instead of using 10.0 g of the cedar sample material obtained in Example 1 and the organic solvent anthracene as a solvent, pure water 60.0 g was used, and 5 wt% of sodium hydroxide was added as a catalyst and mixed. The mixture was sealed in an electromagnetic induction stirring autoclave with an internal volume of 200 ml and the inside was replaced with nitrogen gas. Nitrogen gas was filled up to 3.0 MPa, and thereafter the liquefaction reaction and composition analysis were performed in the same manner as in Example 1.

Results Figure 1 shows the liquid fuel yield according to cedar solvent species and initial pressure in Examples 1 and 2 and Comparative Examples 1 and 2.
It was shown to. As shown in FIG. 1, when an organic solvent was used as in Examples 1 and 2, the maximum reaction pressure was 0.
It was shown that the yield of liquid fuel was high despite being as low as 9 MPa and about 6.0 MPa. When an organic solvent is used, when the initial pressure is 0.1 MPa, the AI yield increases and the Gas and H ₂ O yields decrease compared to the case of 3.0 MPa, but the AS yield changes greatly. It was confirmed not to. Therefore, when the organic solvent of the present invention was used, a liquid fuel could be sufficiently obtained even at a low initial pressure of 0.1 MPa. On the other hand, in Comparative Examples 1 and 2, when pure was used as the solvent, the maximum reaction pressure was 9.0 and 13.1 MPa as compared with the case where it was used as the organic solvent.
Despite being high, the yield of AS was 20% or more low.

10.0 g of the cedar specimen obtained in Example 1 and 60.0 g of anthracene as the organic solvent
Were mixed and sealed in an electromagnetic induction stirring autoclave with an internal volume of 200 ml, and the inside was replaced with nitrogen gas. After filling the nitrogen gas to 0.1 MPa and setting the initial pressure, the contents were heated to 250 ° C. in an external electric furnace (manufactured by Suzuki Riken Corporation) to perform a liquefaction reaction. 250 ℃ from the temperature rise
The contents were stirred horizontally until the temperature reached 250 ° C., and immediately after reaching 250 ° C., the contents were air-cooled to room temperature. After the reaction, the separation step and the composition analysis were performed in the same manner as in Example 1. The results are shown in Table 2 together with Examples 4-6.

10.0 g of the cedar specimen obtained in Example 1 and 60.0 g of anthracene as the organic solvent
Were mixed and sealed in an electromagnetic induction stirring autoclave with an internal volume of 200 ml, and the inside was replaced with nitrogen gas. After the nitrogen gas was filled up to 0.1 MPa and the initial pressure was set, the contents were heated to 300 ° C. in an external electric furnace (manufactured by Suzuki Rikagaku Co., Ltd.) to perform a liquefaction reaction. 300 ℃ from the temperature rise
The contents were stirred horizontally until the temperature reached 300 ° C., and immediately after reaching 300 ° C., the contents were air-cooled to room temperature. After the reaction, the separation step and the composition analysis were performed in the same manner as in Example 1.

10.0 g of the cedar specimen obtained in Example 1 and 60.0 g of anthracene as the organic solvent
Were mixed and sealed in an electromagnetic induction stirring autoclave with an internal volume of 200 ml, and the inside was replaced with nitrogen gas. After filling with nitrogen gas to 0.1 MPa and setting the initial pressure, the contents were heated to 350 ° C. in an external electric furnace (manufactured by Suzuki Rikagaku Co., Ltd.) to perform a liquefaction reaction. 350 ℃ from the temperature rise
The contents were stirred horizontally until the temperature reached 350 ° C., and immediately after reaching 350 ° C., the contents were air-cooled to room temperature. After the reaction, the separation step and the composition analysis were performed in the same manner as in Example 1.

10.0 g of the cedar specimen obtained in Example 1 and 60.0 g of anthracene as the organic solvent
Were mixed and sealed in an electromagnetic induction stirring autoclave with an internal volume of 200 ml, and the inside was replaced with nitrogen gas. After filling the nitrogen gas to 0.1 MPa and setting the initial pressure, the contents were heated to 400 ° C. in an external electric furnace (manufactured by Suzuki Rikagaku Co., Ltd.) to perform a liquefaction reaction. 400 ℃ from the temperature rise
The contents were stirred horizontally until the temperature reached 400 ° C, and immediately after reaching 400 ° C, the contents were air-cooled to room temperature. After the reaction, the separation step and the composition analysis were performed in the same manner as in Example 1.

Result The liquid fuel yield by the reaction temperature of the cedar in Examples 5-6 was shown in FIG. From FIG.
It was confirmed that the AI yield decreased and the AS, Gas, and H ₂ O yields increased as the reaction temperature increased. The AS collection rate at 350 ° C. is the maximum, about 50 wt%.
The above did not change much.

Wood biomass-derived liquid fuel production apparatus A wood biomass-derived liquid fuel production apparatus was produced. This liquid fuel production apparatus includes the following processes (A) to (E) or (B) to (E). The flow of the manufacturing apparatus of the liquid fuel derived from woody biomass containing this process was shown in FIG.
(A) A crushing tank that crushes wood biomass until the average particle size is 300 μm or less, and performs a crushing step to obtain a test material derived from the wood biomass,
(B) a mixing tank for mixing an organic solvent with the test material;
(C) a reaction vessel that performs a liquefaction step of heat-treating the mixture at a temperature at which thermal decomposition occurs (250 to 400 ° C.);
(D) A separation tank for separating a decomposition product of the test material generated by heating and performing a separation step of obtaining a woody biomass-derived liquid fuel;
(E) A circulation path that circulates in the second region using a part of the liquid fuel derived from woody biomass as an in-house solvent.

[Reference example]
As a reference example, a sample material composed of woody biomass is mixed with waste paper wastewater, and a liquefaction treatment is performed at a temperature and pressure at which thermal decomposition and hydrolysis are performed, and a decomposition product of the sample material generated by this step is The manufacturing method of the liquid fuel derived from woody biomass characterized by including the isolation | separation process of isolate | separating and obtaining the liquid fuel derived from woody biomass was shown. As a comparative example in this case, pure water or a sodium hydroxide aqueous solution was used as a solvent instead of waste paper waste water.
Eucalyptus sample material obtained in the same manner as in Example 1 and waste paper wastewater (water content 99.2 wt%, ash content 0.4 wt%, organic matter 0.4 wt%, pH 9.5), pure water or hydroxylated as a solvent Any 30.0 g of an aqueous sodium solution (pH 9.5) was mixed, sealed in an electromagnetic induction stirring autoclave having an internal volume of 200 ml, and the inside was replaced with nitrogen gas. After filling the nitrogen gas up to 2.0 MPa and setting the initial pressure, the contents were heated to 150 to 350 ° C. in an external electric furnace (manufactured by Suzuki Rikagaku Co., Ltd.) to carry out a liquefaction reaction. The contents were stirred horizontally until the temperature reached 150 to 350 ° C. After the temperature reached 150 to 350 ° C., the contents were immediately cooled to room temperature. After the reaction, the separation step and the composition analysis were performed in the same manner as in Example 1.

  The liquid fuel yield by the Eucalyptus solvent species when the reaction temperature is 300 ° C. is shown in FIG. From FIG. 4, it was confirmed that when the waste paper waste water was used, the AI yield decreased and the AS yield increased compared to the case where pure water was used. Furthermore, it was confirmed that the AI yield was as high as or higher than that when using an aqueous sodium hydroxide solution.

In the FT-IR spectrum of the product, in the reaction with a pure water solvent, as the temperature increased, a decrease in carboxylic acid in WS and an increase in ester bond in WIAI were confirmed. It was thought that the residue increased because of polycondensation.
On the other hand, since the carboxylic acid was confirmed in WS in the reaction of waste paper waste water and sodium hydroxide aqueous solution, the polycondensation was suppressed by neutralizing the carboxylic acid with the alkali component, so that the generation of the residue It was thought to have been suppressed.
Therefore, it was suggested that the alkali component contained in the waste paper wastewater of the present invention has an effect as an alkali catalyst like sodium hydroxide.

  The method and apparatus for producing liquid fuel derived from woody biomass of the present invention can obtain liquid fuel under low pressure and mild reaction conditions. Furthermore, by recycling a part of the obtained liquid fuel as an in-house solvent, it can be used for the construction of a small-scale energy self-contained factory that can efficiently continue liquefaction.

It is the figure which showed the liquid fuel yield by the solvent seed | species and initial pressure of a cedar (Examples 1 and 2 and Comparative Examples 1 and 2). It is the figure which showed the liquid fuel yield by reaction temperature (Examples 3-6). It is the figure which showed the flow of the manufacturing apparatus of the liquid fuel derived from woody biomass (Example 7). It is the figure which showed the liquid fuel yield by the solvent seed | species of Eucalyptus (reference example).

Claims (11)

(A) mixing a sample material made of woody biomass with an organic solvent, and liquefying at a temperature and pressure at which thermal decomposition is performed;
(B) A method for producing a woody biomass-derived liquid fuel comprising separating a decomposition product of the test material produced in the step (A) to obtain a woody biomass-derived liquid fuel. . The method for producing a liquid fuel derived from woody biomass according to claim 1, wherein the woody biomass is continuously liquefied by circulating and using a part of the liquid fuel derived from the woody biomass as an in-house solvent. In the said liquefaction process (A), the organic solvent to be used is 1 weight times or more and 10 weight times or less of this test material, The manufacturing method of the liquid fuel derived from the woody biomass of Claim 1 or 2 characterized by the above-mentioned. In the said liquefaction process (A), the organic solvent to be used is a heavy oil fraction with a normal-pressure boiling point of 300 degreeC or more, The manufacturing method of the liquid fuel derived from the woody biomass in any one of Claims 1-3 characterized by the above-mentioned. The method for producing a liquid fuel derived from woody biomass according to any one of claims 1 to 4, wherein the woody biomass used for the test material is woody industrial waste. The method for producing a liquid fuel derived from woody biomass according to any one of claims 1 to 5, wherein the water content of the test material is 10% by weight or less. The manufacturing method of the liquid fuel derived from the woody biomass in any one of Claims 1-6 which further includes the process of crushing the woody biomass used for a test material. In the said liquefaction process (A), heating temperature is adjusted to 250 to 400 degreeC, The manufacturing method of the liquid fuel derived from the woody biomass in any one of Claims 1-7 characterized by the above-mentioned. In the said liquefaction process (A), a pressure is adjusted to atmospheric pressure or more and less than 15 atmospheres, The manufacturing method of the liquid fuel derived from the woody biomass in any one of Claims 1-8 characterized by the above-mentioned. (A) a mixing tank for mixing an organic solvent with the test material;
(B) a reaction vessel that performs a liquefaction step of heat-treating the mixture at a temperature at which thermal decomposition occurs;
(C) A separation tank for separating a decomposition product of the test material generated by heating and performing a separation step of obtaining a liquid fuel derived from woody biomass,
(D) An apparatus for producing a woody biomass-derived liquid fuel comprising a circulation path that circulates in the mixed layer using a part of the woody biomass-derived liquid fuel as a self-solvent. The apparatus for producing a liquid fuel derived from woody biomass according to claim 10, further comprising a crushing tank that crushes the woody biomass and performs a crushing step for obtaining a test material derived from the woody biomass.

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