JP2017132828A - Manufacturing method of biomass fuel body and biomass fuel body manufactured by the method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive biomass fuel body having a simple structure, effectively using an environmental waste derived from plant and having higher combustion calorie than ligneous pellets.SOLUTION: A manufacturing method of a biomass fuel body is constituted with having a first process S1 for growing by culturing Algae M which self produces an oil, then recovering dried Algae residue M1-d after oil component extraction by extracting the oil component and pulverizing the same to obtain a primary raw material M1-d, a second process S2 for adding water W to the dried pulverized raw material M1-d.p to adjust the same to a desired mass ratio and mixing the raw material M1-d.p of which moisture is adjusted to make the same to a clay form, a third process S3 for molding the slay formed raw material M2 to a desired shape, and a fourth process S4 for drying the molded raw material M2. Algae residual pellet 7 as the biomass fuel body is manufactured by cutting the dried molded body 5 in the fourth process S4 in a predetermined size.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a method for producing a biomass fuel body and a biomass fuel body produced by the method.

  Generally, wood pellets are known as biomass-derived fuel pellets. In order to manufacture wood pellets, wood is finely pulverized like sawdust and sawdust into raw materials, and the raw materials are extruded with a pressure roller to be pelletized. The reason why the powdery raw material is formed into a pellet is that when the raw material is extruded from the die, the lignin softens due to frictional heat and serves as an adhesive (see, for example, Patent Document 1).

  With wood pellets, only the wood raw material is compression-molded, so it is not possible to obtain more calories than woody calories. For this reason, conventionally, a composite solid fuel in which coal is mixed with renewable raw materials, for example, ground plant biomass such as wood, sugarcane plants and grass, and aqueous plant biomass such as algae has been proposed (for example, Patent Documents). 2). In this conventional technology, solid renewable raw material materials such as coal and above-ground plant biomass and algae are prepared, a binder material is added, and then mixed, dried, pyrolyzed in a pyrolysis furnace, and the resulting solid carbide is removed. It is cooled to produce a solid composite fuel.

Japanese Patent Laying-Open No. 2015-74691 US Patent Application Publication No. 2014/0075833

  However, in the composite solid fuel using biomass described in Patent Document 2, although the combustion calorie is improved as compared with the wood, the binder material must be mixed before molding in order to avoid fine separation of different materials. In addition, after mixing, there is a problem in that it has to be thermally decomposed in a pyrolysis furnace through a drying process, which is costly and troublesome.

  On the other hand, in recent years, with the increase in the production of algal oil, which is a biomass resource, there is a problem that the environmental load increases in waste treatment of algae residues after oil extraction that occurs in large quantities.

  The present invention has been made in order to solve the above-mentioned problems, and has a simple configuration, effectively uses plant-derived waste, and has a higher combustion calorie than wood pellets and an inexpensive method for producing a biomass fuel body. It aims at providing the biomass fuel body manufactured by the method.

  The method for producing a biomass fuel body according to claim 1 of the present invention includes a first step of cultivating and propagating an aqueous suspended organism that produces oil, and then collecting it to obtain a raw material, and moisture of the obtained raw material. , A second step of adjusting the desired weight ratio, a third step of mixing the raw material with adjusted moisture into a clay, and molding the clayed raw material into a desired shape, And a fourth step of drying.

  In the method for producing a biomass fuel body according to claim 1 of the present invention, since the above-described configuration is used, the moisture content of the raw material containing the oil is adjusted and then kneaded to form a clay, so that clay can be added without adding a binder. It is possible to obtain a biomass fuel body by omitting and shortening the process up to the final product, thereby reducing the cost.

  In the method for producing a biomass fuel body according to claim 2 of the present invention, in the first step, the obtained raw material is dried and pulverized, and in the second step, a binder is added to the dried and pulverized raw material. In the third step, the raw material to which the binder has been added is kneaded to form a clay.

  In the method for producing a biomass fuel body according to claim 2 of the present invention, since the raw material is once dried and the binder is added by the above configuration, it can be made into a clay with a desired viscosity, Easy to mold.

  In the method for producing a biomass fuel body according to claim 3 of the present invention, the aquatic organism is an algae, and a blue, Euglena, Chorella, Spirulina, Arthrospira, Arthrospira , Botryococcus, Aurantiochytrium, Labyrinthulids, Thraustochytrids and Schizochytrium, or a combination of two or more thereof It is characterized by this.

  The method for producing a biomass fuel body according to claim 4 of the present invention is characterized in that the aqueous suspended organism is an aqueous suspended organism having an oil content of 2 to 70 Wt%.

  The method for producing a biomass fuel body according to claim 5 of the present invention is characterized in that, in the first step, the raw material is composed of a dried algal residue after oil extraction from which oil has been extracted.

  In the method for producing a biomass fuel body according to claim 5 of the present invention, since it is configured as described above, a binder is added after pulverization even if the dried algal residue containing low oil content is extracted. When kneaded and kneaded, it becomes a clay, so that the algae residue after primary use can be used, and plant-derived waste can be used effectively.

  The method for producing a biomass fuel body according to claim 6 of the present invention is characterized in that the algal residue is an algal residue after oil extraction generated by the production of a biomass-derived fuel that extracts and refines the oil content of the algae. It is what.

  In the method for producing a biomass fuel body according to claim 6 of the present invention, the algae residue after the oil extraction generated by the production of the biomass-derived fuel extracted from the algae oil and refined is obtained by the above configuration. It can be used without being discarded, and the cost can be reduced.

  The method for producing a biomass fuel body according to claim 7 of the present invention is characterized in that the binder is water.

  Since the biomass fuel body manufacturing method according to claim 7 of the present invention is configured as described above, the weight ratio of the binder can be easily adjusted, management can be facilitated, and the cost can be reduced.

  The method for producing a biomass fuel body according to claim 8 of the present invention is characterized in that the water added in the second step is adjusted so that the proportion of moisture is in the range of 5 to 55 Wt%. It is.

  The method for producing a biomass fuel body according to claim 9 of the present invention is characterized in that the oil content of the algal residue after oil extraction is 2 to 20 Wt%.

  In the method for producing a biomass fuel body according to claim 10 of the present invention, the binder is any one of natural resin, vegetable wax, starch paste, seaweed paste, petroleum wax, synthetic resin, or two or more thereof. It is characterized by being a combination.

  Since the method for producing a biomass fuel body according to claim 10 of the present invention is configured as described above, it is possible to adjust the combustion calories of the biomass fuel body by the type and combination of binders.

  The method for producing a biomass fuel body according to claim 11 of the present invention is characterized in that, in the second step, when the binder is added, the temperature is maintained at a temperature at which the binder is liquefied.

  In the method for producing a biomass fuel body according to claim 11 of the present invention, the binder is kneaded smoothly and evenly into the raw material by the above configuration.

  The method for producing a biomass fuel body according to claim 12 of the present invention is characterized in that it is extrusion molded in the fourth step.

  In the method for producing a biomass fuel body according to claim 12 of the present invention, the outer peripheral shape of the molded final product can be made uniform by adopting the above configuration.

  The method for producing a biomass fuel body according to claim 13 of the present invention is characterized in that, in the fourth step, it is cut according to a desired dimension at the time of molding or after molding drying.

  In the method for manufacturing a biomass fuel body according to the thirteenth aspect of the present invention, a biomass fuel body having a size according to the application can be provided by adopting the above configuration.

  The method for producing a biomass fuel body according to claim 14 of the present invention is characterized in that a desulfurization material is added in the second or third step.

  In the method for producing a biomass fuel body according to claim 14 of the present invention, the above configuration makes it possible to desulfurize a sulfur content generated during combustion of the biomass fuel body, and there is no need to provide a desulfurization apparatus.

  The method for producing a biomass fuel body according to claim 15 of the present invention is characterized in that the desulfurization material is slaked lime.

  The method for producing a biomass fuel body according to claim 16 of the present invention is characterized in that, in the first step, an aqueous suspended organism that is generated in a natural environment water area and generates oil is recovered and used as a raw material. .

  In the method for producing a biomass fuel body according to claim 16 of the present invention, by adopting the above configuration, it is possible to use the aquatic organisms abnormally generated in the water area without discarding them, and to reduce the environmental load.

  A biomass fuel body according to claim 17 of the present invention is manufactured by the manufacturing method according to any one of claims 1 to 16.

  In the biomass fuel body manufactured by the method for manufacturing a biomass fuel body according to claim 17 of the present invention, the above-described configuration allows the raw material containing oil to be dried, and then added to a binder and kneaded to form a clay. Therefore, it is easy to mold and the process to the final product can be omitted and shortened to obtain a biomass fuel body, thereby reducing the cost.

  The method for producing a biomass fuel body according to the present invention comprises a first step of cultivating and propagating an aqueous suspended organism that produces oil, and then collecting it to obtain a raw material. A second step of adjusting the weight ratio, a third step of mixing the raw material adjusted in moisture to form a clay, and a fourth step of molding the clay-like raw material into a desired shape and drying it. Therefore, a biomass fuel body having a higher combustion calorie than wood pellets can be produced at a low cost with a simple configuration.

  Since the biomass fuel body manufactured by the method for manufacturing a biomass fuel body according to the present invention is manufactured by the manufacturing method according to any one of claims 1 to 16, it can be manufactured at low cost. Since combustion calories can be made higher than wood pellets, fuel with high combustion efficiency can be obtained.

(A) thru | or (E) of FIG. 1 is explanatory drawing which shows the manufacturing process of the biomass fuel body which concerns on 1st Embodiment of this invention later on. 2 (A) and 2 (B) are flow charts showing the manufacturing process of the biomass fuel body of FIG. 1, respectively, and (A) is made into a clay using dry algae residues extracted by oil extraction by dry extraction. The case (B) shows the case where it is made into a clay without using a binder using an algal residue containing water extracted by wet extraction. FIG. 3 shows the quality data of algae residue pellets, which are actually produced biomass fuel bodies, based on the biomass fuel production method according to the first embodiment of FIG. 1 in comparison with the quality standards of wood pellets. It is a table. FIG. 4 is the same method as the method for producing wood pellets manufactured through the pressure extrusion process using a 100% algal residue pellet produced by the same method as the algae residue pellet of FIG. 1, a conventional pressure roller and a die. It is a table | surface which each compares the property of the manufactured algae residue and blue mushroom each making the prototype of the manufactured 100% green mushroom pellet. FIGS. 5A and 5B are explanatory views showing a method for producing wood pellets manufactured through a pressure extrusion process using a conventional pressure roller and a die, and an explanation showing an actual machine of the pressure roller and the die, respectively. FIG. FIG. 6 is a graph showing a comparison of the composition of algal residues and aoko. FIGS. 7A and 7B are flow charts showing the manufacturing process of the biomass fuel body according to the second embodiment of the present invention, respectively, and FIG. 7A is a raw and uncontained raw water that has not been subjected to oil extraction. When the treated algae are dried once before being made into clay, (B) is also used to recover raw algae containing moisture that has not been subjected to oil extraction, dehydrated, and made into clay without using a binder. Each case is shown.

  With the simple structure, the plant-derived waste is effectively used and the combustion calorie is higher than the wood pellets, and the objective is to obtain an inexpensive biomass fuel body. Extracting and refining the oil content of algae The first step of drying and crushing the algae residue after oil extraction generated by the production of biomass-derived fuel to obtain the raw material, and adding water as a binder to the dried raw material Then, the second step of adjusting the weight ratio to a desired value, the third step of kneading the moisture-adjusted raw material to make a clay, and molding the clay-like raw material into a desired shape And a fourth step of drying the raw material.

  The present invention will be described below with reference to embodiments shown in the drawings. As shown in FIGS. 1A to 1E, the method for producing a biomass fuel according to the first embodiment of the present invention uses algae (aquatic suspended organisms including seawater and freshwater) M that produces oil. Manufactured using raw materials. The algae M used in the present embodiment is an algae that produces oil (for example, aoco, Euglena, Chorella, Spirulina, Arthrospira, Botryococcus). Cultivated by proliferation of at least one of Aurantiochytrium, Labyrinthulids, Thraustochytrids and Schizochytrium, or a combination thereof) Used. Preferably, dried algal residue M1 after oil extraction, which is recovered after culturing and growing and recovered by producing a biomass-derived fuel that extracts and purifies the oil, is used.

  In the present embodiment, the dried algal residue M1-d after oil extraction by dry extraction using an oil extractant (organic solvent) is used, but the present invention is not limited to this. Algae residue M1-w obtained by wet extraction that extracts oil from algae M in a floating state, or raw and untreated algae M that has not been subjected to oil extraction Good. Further, the algae M is not limited to plants, and any algae may be used as long as it can produce oil, and can be artificially cultured and proliferated. It may be a fungus. The ratio of the oil component which occupies for the algae M which produces oil differs a little depending on the kind. For example, in the case of Botryococcus braunii, the oil component before oil extraction is approximately 2 to 70 Wt%, and the oil component cannot be completely removed by oil extraction, and is low even after oil extraction. The oil component remains, and the oil component after oil extraction is approximately 2 to 20 Wt%. The present invention has been made paying attention to this residual oil content. In this embodiment, Botryococcus braunii is used as the algal residue M1.

  In the method for producing a biomass fuel body according to this embodiment, first, as shown in FIGS. 1A and 2A, the dried algal residue M1-d after oil extraction is pulverized and dried. Powdered algae residue M1-d. It has the 1st process (algae residue accumulation | storage process) S1 which accumulate | stores in the container 3 by using p as a primary raw material. Since the algal residue M1 after oil extraction is already in a dry state, it is not necessary to use a drying furnace, but it may be used as necessary. The dried algae residue M1-d is pulverized by a powdering apparatus (not shown). For powdering, a particle size of 2 mm or less is preferred. Next, in the second step (moisture adjustment clay-forming step) S2, the algal residue M1-d. Desirable to add water W as a binder to p to absorb water (see FIG. 1B) and to have a moisture content in a predetermined range of 5 to 55 wt% and to form a clay according to the type of algae It adjusts so that it may become moisture content of. And the algal residue M1-d. p is kneaded and mixed with a stirrer (not shown) to obtain a clay, and a clay-like raw material M2 is obtained as a secondary raw material. At this time, the softness of the clay-formed secondary material M2 is determined according to the moisture content and the type of algae M. As described above, since the oil component remains in the algal residue M1 after oil extraction, when the water (binder) W is added and kneaded, the secondary raw material M2 is made into a clay and becomes plastic by external force. Deformable.

  Next, in the third step (molding step) S3, the secondary raw material M2 of the algal residue made into a clay is extruded by an extrusion molding device (for example, a clay gun) 4 and molded (see FIG. 1C). . Then, in the fourth step (drying step) S4, the molded long rod-shaped molded body 5 is placed on the mounting table 6 and dried (see FIG. 1D). The clay gun 4 used in this embodiment has a circular discharge port and a diameter of 6 mm. The extruder 4 is not limited to a clay gun, and may be any one that can be molded into a desired shape having an elliptical or square cross section. Finally, the molded and dried molded body 5 is cut into final product dimensions to produce algae residue pellets 7 that are biomass fuel bodies (see (E) in FIG. 1)).

FIG. 3 is a table showing the quality data of the algae residue pellets 7 which are actually produced biomass fuel bodies based on the biomass fuel production method according to the first embodiment, compared with the quality standards of wood pellets. It is. 4 is manufactured through a pressure extrusion process using 100% algae residue (Botriococcus browni) pellets manufactured by the same method as the algae residue pellets of FIG. 1, a conventional pressure roller and a die. Each of the 100% green algae pellets manufactured in the same way as the wood pellet manufacturing method (see Fig. 5 (A) and (B)) was prototyped, and the properties of the prototype algae residue and blue algae were compared. It is a table shown. The motivation for creating 100% green algae pellets manufactured in the same way as the conventional wood pellet manufacturing method was as follows. First, in the actual experiment, the wood pellets were manufactured using a conventional pressure roller and die. The method was used to pellet the sea cucumber. In this experiment, as expected, the aiko was successfully pelletized. For this reason, it was assumed that algae residue (Botriococcus browni) could be similarly pelletized instead of blue sea cucumber. However, when an attempt was made to pelletize with a pressure roller and a die using an algal residue (Botriococcus browni), the pellet could not be pelletized. This invention is made | formed in view of the case where it failed with the conventional pelletizing method. Furthermore, FIG. 6 is a graph showing a comparison of the composition of algal residues and aoko. As is clear from FIG. 4, the pellet 7 with 100% algae residue (Botriococcus browni) satisfies the standard in terms of fine powder rate and mechanical durability. Kasa density standards, the a value of 600~650kg / m ³ still defined 650kg / m ³ or more that of to include loose pellets (Nippon wood pellets Kyokai, 2011) since there is a bulk density The lower limit of is set to ensure the strength of molding. Since the pellet 7 of 100% of the algal residue (Botriococcus browni) satisfies the fine powder rate and the mechanical durability at a high level, there is no particular problem even if the bulk density standard is not satisfied.

The wood pellets generally used were mixed with 1% by weight of pellets 7 containing 100% algae residue, and a continuous burning experiment was conducted using a household pellet stove.
The result continued to burn for 8 hours with no odor. When the combustion pot after the combustion was confirmed, it was found that a small amount of ash remained, and no vitrified and bridged ash or poorly burned pellets remained, and it burned well.

  Next, the operation of the biomass fuel manufacturing method according to the first embodiment will be described. In the method for producing biomass fuel according to the first embodiment, in the first step S1, after algae M that produces oil is cultured and grown, it is recovered and extracted to extract oil, and dried after oil extraction. The algal residue M1-d., Which is pulverized and accumulated in the container 3 as a primary raw material, is collected in the container 3 in the second step S2. Water W is added as a binder to p and adjusted so as to have a desired water content (5-55 wt%). And the algal residue M1-d. Adjusted to the desired water content in the third step S3. p is kneaded to make clay, and secondary raw material M2 is obtained. Next, in the fourth step S4, the clay-formed secondary raw material M2 is molded into a desired shape, dried, and cut into the dimensions of the final product. For this reason, even if the dried algal residue containing low oil content after oil extraction is crushed and then added to water and kneaded, it becomes a clay, so use the algal residue after primary use Therefore, plant-derived waste can be used effectively. Moreover, the biomass fuel body whose combustion calorie is higher than a wood pellet can be manufactured cheaply.

  FIG. 2B shows a modified example of the first embodiment. In the biomass fuel manufacturing method according to the first embodiment and the biomass fuel body manufactured by the method, the biomass fuel body is dried after oil extraction. In the method for producing biomass fuel according to this modification, algal residue M1-d obtained by wet extraction that extracts oil from algae M that is floating in water is used. The difference is that -w is used. For this reason, the process of adding water W as a binder is omitted.

  That is, in the biomass fuel manufacturing method according to the modification of the first embodiment and the biomass fuel body manufactured by the method, the algae obtained by wet extraction in which oil is extracted from algae floating in water The residue M1-w contains a lot of moisture. For this reason, as shown in FIG. 2B, in the first step (moisture adjustment accumulation step) S11, the algae residue M1-w containing moisture after wet extraction is recovered, drained, dehydrated and pulverized. The primary raw material algae residue M1-w., Which is gradually reduced in water content and adjusted to the desired water content. p is accumulated. Next, in the second step (claying step) S12, the algal residue M1-d. p is kneaded and mixed with a stirrer (not shown) to obtain a clay, and a clay-like material M2 is obtained as a secondary material. The subsequent third step (molding step) S13 and fourth step (drying step) S14 are the same as the third and fourth steps S3 and S4 of the first embodiment. It should be noted that in the fourth step S14, it may be cut into final product dimensions, or if it has been previously molded into the final product shape in the third molding step S13, it only needs to be dried.

  Next, the manufacturing method of the biomass fuel which concerns on 2nd Embodiment of this invention is demonstrated. The biomass fuel manufacturing method according to the second embodiment is a biomass that is recovered after culturing and proliferating as the primary raw material M1 as the biomass fuel manufacturing method according to the first embodiment, and extracting and purifying oil. The dry algal residue M1-d or oil-containing algal residue M1-w after oil extraction generated by the production of the fuel derived from the oil is used, whereas the raw and untreated algae and nature from which the oil is not extracted A different point is that an aqueous suspended organism that is generated in an environmental water area and produces oil, for example, aquatic or the like, is used as the primary raw material Mr.

  That is, the algae M that is generated in a large amount in the natural environment water area and produces oil, or the algae Mr-w that produces cultured and propagated oil is collected, dried once, and as shown in FIG. Next, the dried algae Mr1-d is pulverized to produce a primary raw material Mr1-d. first step (algae dry accumulation step) S31 for obtaining p, and the obtained primary raw material Mr1-d. Water W as a binder is added to p, adjusted to a weight ratio in a desired range to obtain a secondary raw material Mr2, and the resulting secondary raw material Mr2 is kneaded to form a clay (second moisture adjustment) (Claying step) S32, a third step (molding step) S33 for molding the clay-formed secondary raw material Mr2 into a desired shape, and a fourth step for drying the molded secondary raw material Mr2 ( Drying step) S34. For this reason, since the untreated algae which do not perform processes, such as oil extraction, can be utilized, a high-calorie biomass fuel body is obtained. In addition, the aquatic organisms that have abnormally occurred in the water area can be used without being discarded, and the environmental load can be reduced.

  FIG. 7B shows a modification of the second embodiment. In the biomass fuel production method according to the second embodiment and the biomass fuel body produced by the method, the raw and untreated algae Mr. -W is collected and then dried once, whereas the biomass fuel production method according to this modification contains a large amount of raw water that has not been subjected to processing such as oil extraction. The algae Mr-w is collected, drained and dewatered and pulverized, and the water content is gradually reduced and adjusted to a desired water content, and then a clay is formed. For this reason, the process of adding water W as a binder is omitted.

  That is, in the biomass fuel manufacturing method according to the modified example of the second embodiment and the biomass fuel body manufactured by the method, as shown in FIG. 7B, the first step (moisture adjustment accumulation step) S41. Then, raw untreated algae Mr-w containing a lot of water is recovered, drained, dewatered and pulverized, gradually reduced in water, and the primary algae Mr1- w. p is accumulated. Next, in the second step (claying step) S42, the algal residue Mr1-w. p is kneaded and mixed with a stirrer (not shown) to obtain clay-like raw material Mr2 as a secondary raw material. The subsequent third step (molding step) S43 and fourth step (drying step) S44 are the same as the third and fourth steps S33 and S34 of the second embodiment. As described above, in the method for producing biomass fuel according to the second embodiment, after the algae before oil extraction is collected in the first step S31, a drying step for drying once is provided, and in the second step S32, Although water W is added, in this modification, the primary raw material Mr1-w. When p is obtained, the water is adjusted to a desired weight ratio and pulverized. By doing in this way, the drying process before making into clay can be omitted. For algae with a small particle size, the pulverization step may be omitted. Furthermore, in both the first and second embodiments, the secondary raw materials M2 and Mr2 are cut after drying using an extruder 4 for molding, but the invention is not limited to this, and bean charcoal such as briquettes. You may shape | mold into a small lump like. In this case, the process of cutting into the final product is omitted.

  In the method for producing biomass fuel according to each of the above embodiments, water is used as a binder, but the present invention is not limited to this. Natural resins, vegetable waxes, starch pastes, seaweed pastes, petroleum waxes are not limited thereto. Any one of synthetic resins or a combination of two or more thereof may be used. About the binder solidified at normal temperature, what is necessary is just to heat and mix to the temperature at which a binder is liquefied at the time of binder addition. The burned calories of the final product can be increased depending on the type of binder. Furthermore, as shown in FIG. 4, the sulfur content is 1.5% and 0.3%, respectively, in the 100% pellets of the blue seaweed and the pellets of 100% algal residue (Botriococcus browni). For this reason, in each said embodiment, when kneading | mixing the primary raw materials M1 and Mr and making it clay-like, you may make it add desulfurization materials, such as slaked lime. By comprising in this way, the sulfur content which arises at the time of combustion of a biomass fuel body can be desulfurized, and it becomes unnecessary to provide a desulfurization apparatus. In addition, the load on the environment can be reduced.

M algae (aquatic suspended organisms)
M1 Primary material (algal residue after oil extraction)
M2 secondary material (clay-like material)
7 Algal residue pellet (biomass fuel body)
S1 1st process (algae residue accumulation process)
S2 2nd process (moisture control clay-like process)
S3 Third process (molding process)
S4 Fourth step (drying step)
W Water

Claims (17)

A first step of cultivating and propagating aquatic organisms that produce oil and then recovering them to obtain raw materials;
A second step of adjusting the water content of the obtained raw material to a desired weight ratio;
A third step of mixing the raw material with adjusted moisture into a clay,
A method for producing a biomass fuel body, comprising: a fourth step of forming a clay-like raw material into a desired shape and drying it.   In the first step, the obtained raw material is dried and pulverized, and in the second step, a binder is added to the dried and pulverized raw material to adjust to a desired weight ratio, and in the third step, the binder is The method for producing a biomass fuel body according to claim 1, wherein the raw material to which is added is kneaded to form a clay.   The aquatic organisms are algae, including blue sea cucumber, Euglena, Chlorella, Spirulina, Arthrospira, Botryococcus, Aurantiochytrium, The biomass fuel body according to claim 1 or 2, wherein any one of Labyrinthulids, Thraustochytrids, and Schizochytrium or a combination of two or more thereof is used. Manufacturing method.   The method for producing a biomass fuel body according to any one of claims 1 to 3, wherein the aqueous suspended organism is an aqueous suspended organism having an oil content of 2 to 70 Wt%.   The method for producing a biomass fuel body according to any one of claims 2 to 4, wherein, in the first step, the raw material is composed of a dried algal residue after oil extraction from which oil has been extracted.   6. The method for producing a biomass fuel body according to claim 5, wherein the algal residue is an algae residue after oil extraction generated by producing a biomass-derived fuel that extracts and refines the oil content of the algae.   The method for producing a biomass fuel body according to any one of claims 2 to 6, wherein the binder is water.   The method for producing a biomass fuel body according to claim 7, wherein the water added in the second step is adjusted such that the proportion of water is in the range of 5 to 55 Wt%.   The method for producing a biomass fuel body according to any one of claims 5 to 8, wherein the oil content of the algal residue after oil extraction is 2 to 20 Wt%.   The binder according to any one of claims 2 to 9, wherein the binder is any one of natural resin, vegetable wax, starch paste, seaweed paste, petroleum wax, and synthetic resin, or a combination of two or more thereof. The manufacturing method of the biomass fuel body any one of them.   The method for producing a biomass fuel body according to claim 10, wherein, in the second step, when the binder is added, the binder is held at a temperature at which the binder is liquefied.   The method for producing a biomass fuel body according to any one of claims 1 to 11, wherein the biomass fuel body is extruded in the fourth step.   The method for producing a biomass fuel body according to any one of claims 1 to 12, wherein, in the fourth step, cutting is performed according to a desired dimension during molding or after molding drying.   The method for producing a biomass fuel body according to any one of claims 1 to 13, wherein a desulfurization material is added in the second or third step.   The method for producing a biomass fuel body according to claim 14, wherein the desulfurization material is slaked lime.   The method for producing a biomass fuel body according to any one of claims 1 to 15, wherein in the first step, an aqueous suspended organism that is generated in a natural environment water area and generates oil is recovered and used as a raw material. .   A biomass fuel body produced by the production method according to any one of claims 1 to 16.