Solid agglomerate for use in blast furnaces, and its manufacturing and use methods

Abstract

The invention relates to a solid mass for a blast furnace (30) and to a method for producing same, comprising the following steps: supplying at least one carbon source (10) having a particle size of 1 to 6 mm and at least one catalytic source (11) having a particle size of less than 3 mm; mixing (100) at least one carbon source (10), at least one catalytic source (11) and at least one binder (12); and mechanically shaping (200) the mixture of the at least one carbon source (10), the at least one catalytic source (11) and the at least one binder (12) to form a solid mass (20).

Description

(19) State Intellectual Property Office (12) Invention Patent Application (10) Application Publication Number (43) Application Publication Date (21) Application Number 202510057700.2 (22) Application Date 2025.01.14 (30) Priority Data BR1020240271556 2024.12.23 BR (71) Applicant: Technord Desenwalment Technology Co., Ltd. Address: São Paulo, Brazil (72) Inventors: Stephen Michael Porter Ronald Lopez De Oliveira Guilherme Francisco Gonçalves Anderson Azevedo Agramarcio De Amorim Rocha Lucas De Freitas Fiallo (74) Patent Agency: China Council for the Promotion of International Trade Patent & Trademark Office Co., Ltd. 11038 Patent Attorney: Tan Ji (51) Int.Cl. C22B 1 / 244 (2006.01) C21B 5 / 00 (2006.01) C22B 1 / 243 (2006.01) (54) Invention Title Solid agglomerates for blast furnace and methods for manufacturing and using the same (57) Abstract This invention relates to a solid agglomerate for a blast furnace (30) and a method for manufacturing the same, the method comprising the steps of: supplying at least one carbon source (10) with a particle size of 1 to 6 mm and at least one catalyst source (11) with a particle size of less than 3 mm; mixing (100) at least one carbon source (10), at least one catalyst source (11) and at least one binder (12); and mechanically shaping (200) the mixture of at least one carbon source (10), at least one catalyst source (11) and at least one binder (12) to form a solid agglomerate (20). Claims 2 pages, Description 5 pages, Drawings 2 pages, CN 122303579 A 2026.06.30 CN 1 22 30 35 79 A 1. A method for manufacturing solid lumps for a blast furnace (30), characterized in that the method comprises the following steps: providing at least one carbon source (10) with a particle size of 1 to 6 mm and at least one catalyst source (11) with a particle size of less than 3 mm; mixing (100) at least one carbon source (10), at least one catalyst source (11) and at least one binder (12); and mechanically shaping (200) the mixture of at least one carbon source (10), at least one catalyst source (11) and at least one binder (12) to form shaped solid lumps (20).2. The method according to claim 1, wherein the at least one binder (12) comprises a first binder and / or a second binder, wherein the mixing stage (100) further comprises: mixing 40-60% by mass of at least one carbon source (10), 10-30% by mass of at least one catalyst source (11), 3-30% by mass of the first binder and 2-15% by mass of the second binder. 3. The method according to claim 2, characterized in that the mixing stage (100) further comprises: mixing 50-60% by mass of at least one carbon source (10), 15-25% by mass of at least one catalyst source (11), 20-30% by mass of the first binder and 12-15% by mass of the second binder; wherein the first binder comprises a coal binder, and the second binder comprises one or more of corn starch, cassava starch, CMC (carboxymethyl cellulose), phenolic resin and / or non-phenolic resin, plant and / or mineral tar, additive and / or non-additive sodium silicate, clay minerals such as bentonite, sugarcane molasses, glucose, lime and rice husk ash. 4. The method according to any one of claims 1 to 3, characterized in that the providing step further comprises: supplying at least one carbon source (10) with a particle size of 4 to 6 mm and at least one catalyst source (11) with a particle size of less than 2 mm; wherein the at least one carbon source (10) comprises coal and / or biochar, wherein the carbon source is preferably coke fragments or coke chips; and wherein the at least one catalyst source (11) comprises one or more of a calcium source and / or an iron source. 5. A solid agglomerate for a blast furnace (30), characterized in that the solid agglomerate comprises: at least one carbon source (10); at least one catalyst source (11); and at least one binder (12); and wherein the at least one carbon source (10) has a particle size of 1 to 6 mm, and the at least one catalyst source (11) has a particle size of less than 3 mm. 6. The solid agglomerate according to claim 5, characterized in that the at least one binder (12) comprises a first binder and / or a second binder. 7. The solid agglomerate according to claim 6, characterized in that the solid agglomerate comprises 40-60% by mass of the at least one carbon source (10), 10-30% by mass of the at least one catalyst source (11), 3-30% by mass of the first binder, and 2-15% by mass of the second binder. 8. The solid agglomerate according to claim 6 or 7, characterized in that the solid agglomerate comprises 50-60% by mass of the at least one carbon source (10), 15-25% by mass of the at least one catalyst source (11), 20-30% by mass of the first binder, and 12-15% by mass of the second binder.9. The solid agglomerate according to any one of claims 6 to 8, characterized in that the first binder comprises a coal binder, and the second binder comprises one or more of corn starch, cassava starch, CMC (carboxymethyl cellulose), phenolic resin and / or non-phenolic resin, plant and / or mineral tar, additive and / or non-additive sodium silicate, clay minerals such as bentonite, sugarcane molasses, glucose, lime, and rice husk ash. 10. The solid agglomerate according to any one of claims 5 to 9, characterized in that the particle size of the at least one carbon source (10) is 4 to 6 mm, and the particle size of the at least one catalyst source (11) is less than 2 mm. Claims 1 / 2 page 2 CN 122303579 A 11. The solid agglomerate according to any one of claims 5 to 10, characterized in that the at least one carbon source (10) comprises coal and / or biochar, wherein the coal is preferably fragmented coke. 12. The solid agglomerate according to any one of claims 5 to 11, characterized in that the at least one catalyst source (11) comprises one or more of a calcium source and / or an iron source. 13. The solid agglomerate according to any one of claims 5 to 12, characterized in that the calcium source is derived from one or more of lime, limestone, and / or calcium oxide (CaO), wherein the iron source is derived from one or more of iron oxide (FeO), sponge iron, and / or iron-containing waste. 14. The solid agglomerate according to any one of claims 5 to 13, characterized in that the solid agglomerate has a coke reactivity index (CRI) greater than 50% and a resistance greater than 75% in a sieve test, and its gasification temperature is below 950°C. 15. The solid agglomerate according to any one of claims 5 to 14, characterized in that the solid agglomerate has a spherical shape with dimensions of 20-40 mm × 5-20 mm. 16. The solid agglomerate according to any one of claims 5 to 14, characterized in that the solid agglomerate has a spherical granular shape with a diameter of 30-45 mm. 17. The solid agglomerate according to any one of claims 5 to 14, characterized in that the solid agglomerate is manufactured by extrusion and, after extrusion, has a cylindrical shape with a diameter of 30-45 mm and a height of 30-45 mm. 18. Use of solid agglomerates produced by the method of manufacturing solid agglomerates as defined in any one of claims 1 to 4, characterized in that the solid agglomerates are used as fuel in a blast furnace. Claims 2 / 2 Page 3 CN 122303579 A Solid agglomerates for blast furnaces and methods for manufacturing and using thereof Technical Field

[0001] The present invention relates to solid agglomerates (also known as solid agglomerates or solid sintered blocks).More specifically, the present invention relates to solid briquettes for blast furnaces and methods for manufacturing the same, wherein the solid briquettes are manufactured without high-temperature heat treatment. Background Art

[0002] In pig iron production, a blast furnace is a thermal reactor in which the reduction of iron oxides occurs using a reducing agent such as carbon present in coke or charcoal. Various prior art solutions propose to completely or partially replace coal coke with greener alternatives (which reuse waste and underutilized materials) and to use biochar in their composition.

[0003] Cold solid briquettes (such as briquettes, extrudates, or pellets) introduced into a blast furnace can be an additional source of carbon and iron from more environmentally friendly raw materials such as carbon and waste derived from organisms. During heating in the blast furnace, the carbon present in the solid briquettes reacts with oxygen in the iron oxides, thereby reducing them to metallic iron and releasing CO2 in the process. Furthermore, some solid briquettes contribute to improved blast furnace permeability, allow for better reactor performance, reduce consumption, and increase efficiency.

[0004] Figure 1 illustrates a typical process for producing solid agglomerates for use in conventional blast furnaces. The composition of the agglomerates may include a carbon source, a catalyst source, and a binder, which are dosed and mixed. The resulting mixture is formed into briquettes or pellets and then fed into a kiln for carbonization, calcination, or pyrolysis of the agglomerates.

[0005] The carbonization stage of the solid agglomerates has several effects on the physical and chemical properties of the agglomerates, making them suitable for use in blast furnaces. These include increasing fixed carbon content, reducing volatiles, improving mechanical resistance, reducing moisture content, and improving carbon reactivity.

[0006] However, it should be noted that this additional stage implies greater complexity and cost in producing these solid agglomerates, with increased energy consumption and CO2 emissions throughout the process.

[0007] In view of this, it would be advantageous to produce solid agglomerates for blast furnaces by eliminating the carbonization stage, while still providing physicochemical properties favorable for their use in blast furnaces.

[0008] For example, document US4318779A describes a blast furnace coke produced by a method containing low-quality coal at a high blending ratio, the method comprising mixing not less than 60% of a blended coal (having an adjusted total moisture content of not more than 4%) with not more than 40% of briquettes, and carbonizing the resulting mixture. The blended coal consists essentially of not less than 80% coking coal and not more than 20% low-quality coal.

[0009] Document EP2719749A1 teaches a method for producing fuel briquettes, comprising the steps of: a) supplying components, including: biomass, and coal and / or petroleum coke; b) mixing these components; c) drying these components; d) grinding these components; e) forming raw materials by mixing these components with a binder in the following proportions: 5-30% biomass, 50-90% coal and / or petroleum coke by mass and 5-20% binder by mass; f) briquetting the raw materials; and after steps a)-f); g) curing the binder and roasting the briquettes.

[0010] The prior art does not disclose a method for producing solid briquettes with mechanical resistance, fixed carbon content, volatile matter content and reactivity suitable for use in a blast furnace without the presence of carbonization, roasting or pyrolysis stages.

[0011] The invention presented herein solves the problems of the prior art described above. Specification Page 1 / 5 4 CN 122303579 A Summary of the Invention

[0012] Objectives of the Invention

[0013] The first objective of the present invention is to provide a solid agglomerate (including briquettes, extrudates, or pellets) for use in a blast furnace and a method for manufacturing the same, wherein the agglomerate is manufactured without a pyrolysis or carbonization stage.

[0014] The second objective of the present invention is to provide a solid agglomerate for use in a blast furnace that is more environmentally friendly by requiring less energy and carbon dioxide emissions during production.

[0015] The third objective of the present invention is to provide a solid agglomerate (including briquettes, extrudates, or pellets) having suitable mechanical resistance, fixed carbon content, volatile matter content, and reactivity for use in a blast furnace without a carbonization, roasting, or pyrolysis stage.

[0016] Summary of the Invention

[0017] To achieve the above-mentioned objectives, the present invention provides a method for manufacturing solid agglomerates (such as briquettes, extrudates, or pellets) for use in blast furnaces, comprising the steps of: providing at least one carbon source with a particle size of 1 to 6 mm and at least one catalyst source with a particle size of less than 3 mm; mixing the at least one carbon source, the at least one catalyst source, and at least one binder; and mechanically shaping the mixture of the at least one carbon source, the at least one catalyst source, and the at least one binder to form shaped solid agglomerates.

[0018] In some embodiments, the at least one binder comprises a first binder and / or a second binder, wherein the mixing stage further comprises: mixing 40-60% by mass of the at least one carbon source, 10-30% by mass of the at least one catalyst source, 3-30% by mass of the first binder, and 2-15% by mass of the second binder.

[0019] In some embodiments, the mixing stage further includes: mixing 50-60% by mass of at least one carbon source, 15-25% by mass of at least one catalyst source, 20-30% by mass of the first binder, and 12-15% by mass of the second binder; wherein the first binder comprises a coal binder, and the second binder comprises one or more of corn starch, cassava starch, CMC (carboxymethyl cellulose), phenolic resin and / or non-phenolic resin, plant and / or mineral tar, additive and / or non-additive sodium silicate, clay minerals such as bentonite, sugarcane molasses, glucose (or dextran or dextrose), lime, and rice husk ash.

[0020] In some embodiments, the providing step further includes: supplying at least one carbon source with a particle size of 4 to 6 mm and at least one catalyst source with a particle size of less than 2 mm; wherein the at least one carbon source comprises coal and / or biochar, wherein the carbon source is preferably crushed nut coke or coke dust; and wherein the at least one catalyst source comprises one or more of a calcium source and / or an iron source.

[0021] The present invention also provides a solid agglomerate for a blast furnace, comprising: at least one carbon source; at least one catalyst source; and at least one binder; wherein the particle size of the at least one carbon source is 1 to 6 mm, and the particle size of the at least one catalyst source is less than 3 mm.

[0022] In some embodiments, the at least one binder comprises a first binder and / or a second binder.

[0023] In some embodiments, the solid agglomerate comprises 40-60% by mass of the at least one carbon source, 10-30% by mass of the at least one catalyst source, 3-30% by mass of the first binder, and 2-15% by mass of the second binder.

[0024] In some embodiments, the solid agglomerate comprises 50-60% by mass of the at least one carbon source, 15-25% by mass of the at least one catalyst source, 20-30% by mass of the first binder, and 12-15% by mass of the second binder.

[0025] In some embodiments, the first binder comprises a coal binder, and the second binder comprises one or more of the following: corn starch, cassava starch, CMC (carboxymethyl cellulose), phenolic resin and / or non-phenolic resin, plant and / or mineral tar, additive and / or non-additive sodium silicate, clay minerals such as bentonite, sugarcane molasses, glucose, lime, and rice husk ash.

[0026] In some embodiments, the particle size of the at least one carbon source is 4 to 6 mm, and the particle size of the at least one catalytic source is less than 2 mm.

[0027] In some embodiments, the at least one carbon source comprises coal and / or biochar, wherein the coal is preferably fragmented coke.

[0028] In some embodiments, the at least one catalyst source includes one or more of a calcium source and / or an iron source.

[0029] In some embodiments, the calcium source is derived from one or more of lime, limestone, and / or calcium oxide (CaO), wherein the iron source is derived from one or more of iron oxide (FeO), sponge iron, and / or iron-containing waste.

[0030] In some embodiments, the solid agglomerate has a coke reactivity index (CRI) greater than 50% and a resistance greater than 75% in a sieve test, and its gasification temperature is below 950°C.

[0031] In some embodiments, the solid agglomerate has a spherical shape with dimensions of 20-40 mm × 5-20 mm.

[0032] In some embodiments, the solid agglomerate has a spherical granular shape with a diameter of 30-45 mm.

[0033] In some embodiments, the solid agglomerate is manufactured by extrusion and has a cylindrical shape with a diameter of 30-45 mm and a height of 30-45 mm after extrusion.

[0034] The present invention also provides the use of solid briquettes produced by a method for manufacturing solid briquettes as defined in any of the above embodiments of the invention, wherein the solid briquettes are used as fuel in a blast furnace. Brief Description of the Drawings

[0035] The following detailed description refers to the accompanying drawings and their corresponding reference numerals.

[0036] FIG1 illustrates a method for manufacturing solid briquettes for a prior art blast furnace, which uses a carbonization stage on the formed solid briquettes.

[0037] FIG2 illustrates a method for manufacturing solid briquettes (including briquettes, extrudates, or blast furnace pellets) according to an embodiment of the invention. Detailed Description

[0038] First, it should be noted that the following description will be based on preferred embodiments of the invention. However, as will be known to any person familiar with the subject matter, the invention is not limited to such particular embodiments.

[0039] The present invention provides a method for manufacturing solid agglomerates (such as briquettes, extrudates, or pellets) for a blast furnace 30, comprising the steps of: supplying at least one carbon source 10 with a particle size of 1 to 6 mm and at least one catalyst source 11 with a particle size of less than 3 mm; mixing 100 of the at least one carbon source 10, at least one catalyst source 11, and at least one binder 12; and mechanically shaping 200 of the mixture of the at least one carbon source 10, at least one catalyst source 11, and at least one binder 12 to form solid agglomerates 20.

[0040] FIG2 illustrates the stages of the method for manufacturing solid agglomerates according to the present invention. After providing at least one carbon source 10 and at least one catalyst source 11 of a specific particle size, at least one carbon source 10, at least one catalyst source 11, and at least one binder 12 are weighed 101 in an advantageous proportion for mixing 100 in a mixer.Then, a mixture of at least one carbon source 10, at least one catalyst source 11, and at least one binder 12 is mechanically formed 200 to shape the solid agglomerate 20 into briquettes, extrudates, or pellet sizes for use in a blast furnace 30.

[0041] After the mechanical forming stage, the solid agglomerates of the present invention already possess advantageous properties for use as fuel briquettes in a blast furnace 30, thereby eliminating the need for carbonization, roasting, or pyrolysis stages. This is likely due to the optimized combination of the particle size, proportions, and specific properties of the materials used, as well as the use of a binder designed to promote structural cohesion and high reactivity. Furthermore, the specific proportions of the carbon source 10, at least one catalyst source 11, and at least one binder 12 used in the method of the present invention also contribute to the mechanical resistance and reactivity of the solid agglomerates of the present invention.

[0042] Preferably, at least one binder 12 comprises a first binder and / or a second binder, wherein the mixing stage 100 further comprises: mixing 40-60% by mass of at least one carbon source 10, 10-30% by mass of at least one catalyst source 11, 3-30% by mass of the first binder and 2-15% by mass of the second binder.

[0043] Optionally, the mixing step 100 further comprises: mixing 50-60% by mass of at least one carbon source 10, 15-25% by mass of at least one catalyst source 11, 3-30% by mass of the first binder and 2-15% by mass of the second binder. The first binder comprises a coal binder with suitable thermoplastic properties to provide cohesion to the particles, thereby providing aggregation and high-temperature resistance, and the second binder comprises one or more of corn starch, cassava starch, CMC (carboxymethyl cellulose), phenolic resin and / or non-phenolic resin, plant and / or mineral tar, additive and / or non-additive sodium silicate, clay minerals (such as bentonite), sugarcane molasses, clay, etc.

[0044] Optionally, the supply stage further comprises: supplying at least one carbon source 10 with a particle size of 4 to 6 mm and at least one catalyst source 11 with a particle size of less than 2 mm. It should be noted that the at least one carbon source 10 comprises coal and / or biochar, wherein the carbon source is preferably fragmented coke (small coke) or coke chips, and wherein the at least one catalyst source 11 comprises one or more of calcium source and / or iron source.

[0045] The present invention also provides a solid agglomerate for blast furnace 30, comprising: at least one carbon source 10; at least one catalyst source 11; and at least one binder 12; wherein the particle size of at least one carbon source 10 is 1 to 6 mm, and the particle size of at least one catalyst source 11 is less than 3 mm.

[0046] Preferably, the at least one binder 12 comprises a first binder and / or a second binder.

[0047] Preferably, the solid agglomerates of the present invention comprise 40-60% by mass of at least one carbon source 10, 10-30% by mass of at least one catalyst source 11, 3-30% by mass of a first binder, and 2-15% by mass of a second binder.

[0048] Optionally, the solid agglomerates of the present invention comprise 50-60% by mass of at least one carbon source 10, 15-25% by mass of at least one catalyst source 11, 20-30% by mass of a first binder, and 12-15% by mass of a second binder.

[0049] Preferably, the first binder comprises caking coal having suitable thermoplastic properties to provide cohesion to the particles, thereby providing agglomeration and high-temperature resistance, and the second binder comprises one or more of corn starch, cassava starch, CMC (carboxymethyl cellulose), phenolic resin and / or non-phenolic resin, plant and / or mineral tar, additive and / or non-additive sodium silicate, clay minerals (such as bentonite), sugarcane molasses, glucose, lime, and rice husk ash. Using binding carbon to improve the heat resistance of solid briquettes.

[0050] Optionally, at least one carbon source 10 has a particle size of 4 to 6 mm, and at least one catalyst source 11 has a particle size of less than 2 mm.

[0051] Preferably, at least one carbon source 10 comprises coal and / or biochar, wherein the coal is preferably nut coke.

[0052] Biochar can be used to manufacture the solid briquettes of the present invention to make them greener, as a partial or complete substitute for mineral coal in the mixture.

[0053] Preferably, at least one catalyst source comprises one or more of a calcium source 11 and an iron source, such that the calcium source is derived from one or more of lime, limestone, and / or calcium oxide (CaO), wherein the iron source is derived from one or more of iron oxide (FeO), sponge iron, and / or iron-containing waste.

[0054] Preferably, the solid briquettes of the present invention are catalyst briquettes for blast furnaces.

[0055] Furthermore, the solid agglomerates of the present invention exhibit high reactivity, wherein the coke reactivity index (CRI) is greater than 50%, the resistance in the sieve test is greater than 75%, and the gasification temperature is less than 950°C. The solid agglomerates improve the reduction efficiency of iron oxides in the blast furnace, thereby facilitating operation with lower fuel consumption. These properties of the proposed agglomerates are the result of a strategic combination of the particle size, composition, and proportion of the raw materials, which provides the effect of saving energy in the blast furnace and improving its efficiency in reducing iron oxides.

[0056] Preferably, the solid agglomerates of the present invention have a spherical shape with a size of 20-40 mm × 5-20 mm.

[0057] Preferably, the solid agglomerates of the present invention have a spherical agglomerate shape with a diameter of 30-45 mm.

[0058] Preferably, the solid agglomerates of the present invention are manufactured by extrusion and have a cylindrical shape with a diameter of 30-45 mm and a height of 30-45 mm after extrusion.

[0059] Therefore, the solid agglomerates and the method of manufacturing solid agglomerates according to the present invention are attractive because they have physical and chemical properties suitable for use in blast furnaces, eliminate the carbonization, roasting or pyrolysis stages in their manufacture, and are resistant to handling and transportation. It should be noted that the combination of materials and manufacturing techniques imparts physical and chemical properties equivalent to agglomerates that have undergone pyrolysis or carbonization, thereby making the use of these steps unnecessary. Furthermore, the absence of this step makes the production cost of the solid agglomerates of the present invention lower and less complex, and also reduces CO2 emissions and saves energy.

[0060] Various variations in the scope of protection of this claim are permitted. This reinforces the fact that the present invention is not limited to the specific configuration / implementation described above.Description Page 5 / 5 Page 8 CN 122303579 A Figure 1 Description Drawings Page 1 / 2 Page 9 CN 122303579 A Figure 2 Description Drawings Page 2 / 2 Page 10 CN 122303579 A Abstract The present invention relates to a solid agglomerate for use in a blast furnace (30) and to a method for manufacturing it, the method comprising the steps of: supplying at least one carbon source (10) in a particle size of 1 to 6 mm and at least one catalytic source (11) in a grain size of less than 3 mm; mixing (100) at least one carbon source (10), at least one catalytic source (11) and at least one binder (12); and mechanically forming (200) the mixture of at least one carbon source (10), at least one catalytic source (11) and at least one binder (12) to form a solid agglomerate (20).

Claims

1. A method for manufacturing solid lumps for use in a blast furnace (30), characterized in that, The method includes the following steps: Provide at least one carbon source (10) with a particle size of 1 to 6 mm and at least one catalyst source (11) with a particle size of less than 3 mm; A mixture (100) of at least one carbon source (10), at least one catalyst source (11), and at least one binder (12); and A mixture of at least one carbon source (10), at least one catalyst source (11) and at least one binder (12) is mechanically shaped (200) to form a shaped solid mass (20).

2. The method according to claim 1, characterized in that, The at least one adhesive (12) comprises a first adhesive and / or a second adhesive, wherein the mixing stage (100) further comprises: The mixture comprises 40-60% by mass of at least one carbon source (10), 10-30% by mass of at least one catalyst source (11), 3-30% by mass of the first binder and 2-15% by mass of the second binder.

3. The method according to claim 2, characterized in that, The mixing stage (100) also includes: Mix 50-60% by mass of at least one carbon source (10), 15-25% by mass of at least one catalyst source (11), 20-30% by mass of the first binder and 12-15% by mass of the second binder; The first binder includes a coal binder, and the second binder includes one or more of the following: corn starch, cassava starch, CMC (carboxymethyl cellulose), phenolic resin and / or non-phenolic resin, plant and / or mineral tar, additive and / or non-additive sodium silicate, clay minerals such as bentonite, sugarcane molasses, glucose, lime, and rice husk ash.

4. The method according to any one of claims 1 to 3, characterized in that, The steps also include: Supply at least one carbon source (10) with a particle size of 4 to 6 mm and at least one catalyst source (11) with a particle size of less than 2 mm; The at least one carbon source (10) comprises coal and / or biochar, wherein the carbon source is preferably coke fragments or coke chips; and At least one of the catalyst sources (11) includes one or more of calcium and / or iron sources.

5. A solid agglomerate for use in a blast furnace (30), characterized in that, The solid agglomerate comprises: At least one carbon source (10); At least one catalyst source (11); and At least one adhesive (12); and The particle size of at least one carbon source (10) is 1 to 6 mm, and the particle size of at least one catalyst source (11) is less than 3 mm.

6. The solid agglomerate according to claim 5, characterized in that, The at least one adhesive (12) includes a first adhesive and / or a second adhesive.

7. The solid agglomerate according to claim 6, characterized in that, The solid agglomerate comprises 40-60% by mass of the at least one carbon source (10), 10-30% by mass of the at least one catalyst source (11), 3-30% by mass of the first binder and 2-15% by mass of the second binder.

8. The solid agglomerate according to claim 6 or 7, characterized in that, The solid agglomerate comprises 50-60% by mass of the at least one carbon source (10), 15-25% by mass of the at least one catalyst source (11), 20-30% by mass of the first binder and 12-15% by mass of the second binder.

9. The solid agglomerate according to any one of claims 6 to 8, characterized in that, The first binder includes a coal binder, and the second binder includes one or more of the following: corn starch, cassava starch, CMC (carboxymethyl cellulose), phenolic resin and / or non-phenolic resin, plant and / or mineral tar, additive and / or non-additive sodium silicate, clay minerals such as bentonite, sugarcane molasses, glucose, lime, and rice husk ash.

10. The solid agglomerate according to any one of claims 5 to 9, characterized in that, The particle size of the at least one carbon source (10) is 4 to 6 mm, and the particle size of the at least one catalyst source (11) is less than 2 mm.

11. The solid agglomerate according to any one of claims 5 to 10, characterized in that, The at least one carbon source (10) includes coal and / or biochar, wherein the coal is preferably fragmented coke.

12. The solid agglomerate according to any one of claims 5 to 11, characterized in that, The at least one catalyst source (11) includes one or more of calcium and / or iron sources.

13. The solid agglomerate according to any one of claims 5 to 12, characterized in that, The calcium source is derived from one or more of lime, limestone, and / or calcium oxide (CaO), and the iron source is derived from one or more of iron oxide (FeO), sponge iron, and / or iron-containing waste.

14. The solid agglomerate according to any one of claims 5 to 13, characterized in that, The solid agglomerates have a coke reactivity index (CRI) greater than 50% and a resistance greater than 75% in the sieve test, and their gasification temperature is below 950°C.

15. The solid agglomerate according to any one of claims 5 to 14, characterized in that, The solid agglomerate has a spherical shape with dimensions of 20-40mm × 5-20mm.

16. The solid agglomerate according to any one of claims 5 to 14, characterized in that, The solid agglomerates have a spherical agglomerate shape with a diameter of 30-45 mm.

17. The solid agglomerate according to any one of claims 5 to 14, characterized in that, The solid agglomerate is manufactured by extrusion and has a cylindrical shape with a diameter of 30-45 mm and a height of 30-45 mm after extrusion.

18. Use of solid lumps produced by the method for manufacturing solid lumps as defined in any one of claims 1 to 4, characterized in that, The solid lumps are used as fuel in the blast furnace.

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