2152results about "Solid fuels" patented technology

Production systems and methods for producing pellets or pellet products, which can be used, e.g., in an electric arc furnace (EAF) to produce metal alloys, are disclosed herein. In some embodiments, a method for forming coke pellets includes (i) blending biomass with a set of materials to form an input blend, (ii) preconditioning the input blend by hydrating the input blend to generate a first plurality of particles, (iii) charging the first plurality of particles into an oven to produce a second plurality of particles via pyrolysis, (iv) post-conditioning the second plurality of particles to produce a third plurality of particles by exposing the second plurality of particles to at least one of an amphipathic binder, a hydrophobic binder, or a hydrophilic binder, and (v) physically altering the third plurality of particles to form coke pellets. The biomass can have a first volatility and the set of materials can have a second volatility lower than the first volatility.

Methods and systems for coking coal blends to produce foundry coke products are disclosed herein. Methods for producing coke products can include charging a coal blend into a coke oven; and heating the charged coal blend such that a crown temperature of the coke oven is greater than a lower bound coking temperature. The pyrolysis duration begins when the crown temperature of the oven is greater than the lower bound coking temperature, and ends when the crown temperature of the oven is less than the lower bound coking temperature.

The invention relates to the technical field of municipal sludge treatment, in particular to a method for recycling nitrogen and phosphorus elements from municipal sludge. According to the method, the municipal sludge is subjected to hydrothermal carbonization treatment, the treated solid-phase product is dried and ground to a specific particle size, the solid-phase product is subjected to acid leaching under a specific condition to extract the phosphorus element, and then heavy metal and metal elements such as Al and Fe in the acid leaching liquid are removed by adopting strong-acid ion exchange resin and a chemical precipitant, so that the phosphorus element is obtained. And finally, mixing the struvite with a hydrolyzate which is subjected to hydrothermal carbonization treatment and is rich in ammonia nitrogen, and precipitating by adjusting the element proportion and the pH value to obtain a solid-phase product struvite crystal. According to the method, external nitrogen-containing substances do not need to be added, the content of heavy metal in the solid-phase product struvite can be effectively reduced, the recovery rate of phosphorus can reach 93% or above, the recovery rate of ammonia nitrogen can reach 63% or above, the recovery rate of nitrogen and phosphorus is high, energy consumption is low, and the treatment cost is low.

The invention relates to the technical field of dechlorination devices, and provides a high-chlorine coal washing dechlorination leaching device which comprises a dechlorination tank body provided with a washing dechlorination area, and a circulation opening is formed in the bottom of the washing dechlorination area; the conveying part is circularly arranged on the dechlorination tank body, the plurality of push plates are arranged on the conveying part, and the push plates are configured to move along the bottom of the washing dechlorination area under the driving of the conveying part; the screen piece is arranged on the circulation opening; the first spray pipe is arranged on the dechlorination tank body and located below the screen piece, the first spray pipe is provided with a first nozzle, and the first nozzle faces the screen piece. According to the technical scheme, the problems that in the prior art, the dechlorination effect needs to be improved when a traditional kettle body is subjected to water washing dechlorination, and a filter screen part in the kettle body is prone to being blocked are solved.

The invention belongs to the related technical field of metal fuels, and discloses an aluminum-lithium alloy powder fuel and a preparation method thereof, the aluminum-lithium alloy powder fuel is prepared from the following raw materials in percentage by mass: 2-10% of Li, 0.1-5% of Mg, 0.1-3% of RE and the balance of Al. The added Mg element can separate out stable, fine and uniformly-distributed intermetallic compounds besides a micro-explosion effect, the activity of Li in the alloy can be reduced, the stability of the fuel can be improved, the added RE element can form an Al3 (Li, RE) precipitated phase with a core-shell structure by taking the precipitated intermetallic compound Al3RE as a heterogeneous nucleation particle of a metastable phase delta '(Al3Li), and the stability of the fuel can be improved. Through targeted component design, the structure regulation and control of the precipitated phase in the alloy powder can be realized, so that the microstructure of the precipitated phase is improved, and the combustion performance of the fuel is improved.

Certain exemplary embodiments can provide systems and / or methods for producing dried biomass materials, such as from bales of biomass. Biomass materials can be converted into, e.g., pellets, briquettes, cubes, and / or other products with dried and / or densified states. These dried, densified products can be used for, e.g., bioenergy and / or animal feed applications.

The invention discloses a sludge treatment process based on an ultrasonic hydrothermal carbonization technology. The sludge treatment process comprises the following steps: intercepting and filtering out large impurities in biological sludge; carrying out solid-liquid separation on the intercepted sludge, and carrying out concentration treatment on the sludge to obtain concentrated sludge; discharging the concentrated sludge into an ultrasonic hydrothermal carbonization reaction kettle, adding water to adjust the concentration of the concentrated sludge to 10-20%, starting an ultrasonic generator, adding a composite catalyst when the temperature in the ultrasonic hydrothermal carbonization reaction kettle reaches 50 DEG C and the pressure reaches 0.8 Mpa, and converting to generate carbon slurry; wherein the composite catalyst is prepared from ferric oxide, platinum and activated carbon according to a preset proportion; carrying out primary solid-liquid separation on the carbonaceous slurry, separating solid-phase carbon mud and liquid-phase carbon mud in the sludge suspension, and carrying out filter pressing on the solid-phase carbon mud to obtain a mud cake; and drying the mud cake, and granulating in a granulator to obtain the hydrothermal carbon granules. According to the sludge treatment process based on the ultrasonic hydrothermal carbonization technology, the sludge treatment difficulty can be effectively reduced, and the sludge can be quickly treated.

The invention relates to pig manure biomass granular fuel and a preparation method thereof, belongs to the technical field of biomass fuel and environmental protection, and particularly relates to a comprehensive treatment and resource utilization technology of livestock and poultry breeding manure. Carrying out solid-liquid separation on the pig farm fresh pig manure through a spiral dry-wet separator to obtain pig manure residues; the method comprises the following steps: drying pig manure residues to reduce the water content to 22-30wt%, then crushing and screening, burdening the pig manure residues, the pretreated sawdust and chicken manure biochar, and further mechanically stirring and mixing for 10-15 minutes to obtain a uniform mixture with the water content of 22-28wt%; carrying out extrusion forming on the obtained mixture by adopting a biomass granulator to obtain the pig manure biomass granular fuel; and naturally cooling the formed pig manure biomass pellet fuel to room temperature, and screening out unqualified products with the length of less than 4mm to obtain oversize products which are qualified pig manure biomass pellet fuel finished products. The method not only solves the problem of ecological environment pollution caused by the pig manure, but also provides thinking and direction for reduction, harmlessness and resource comprehensive utilization of the livestock and poultry manure.

The invention relates to the technical field of biomass particle fuel preparation, in particular to straw biomass particle fuel preparation equipment which comprises a conveying pipe, a caliber adjusting mechanism, a particle length adjusting mechanism and a particle size adjusting mechanism and further comprises an outer side mounting seat fixedly mounted at one end of the conveying pipe and a synchronous belt wheel set rotationally mounted on one side of the mounting seat. A servo steering engine is fixedly mounted at the top of the mounting base, a driving bevel gear is fixedly mounted at the output end of the servo steering engine, and a transmission assembly extending to the bottom is rotationally mounted at the bottom of the mounting base. A servo steering engine drives a driving bevel gear to adjust different particle sizes of a particle size adjusting mechanism, and meanwhile, a bevel gear ring in the particle size adjusting mechanism drives a particle length adjusting mechanism and a caliber adjusting mechanism to work cooperatively through a transmission assembly, so that the length of straw particles is controlled in a coordinated mode; therefore, the prepared straw biomass particles are ensured to reach ideal particle shapes, and synchronous adjustment of particle sizes and particle lengths in the preparation process is ensured.

Disclosed are antioxidants used in compositions and methods to stabilize synthetic feedstock derived from plastic. Some methods disclosed herein include adding an antioxidant composition to a plastic-derived synthetic feedstock composition. Some methods disclosed herein include heating plastic under substantially oxygen free conditions at a temperature of from about 400° C. to about 800° C. to produce a pyrolysis effluent, distilling the pyrolysis effluent, recovering the synthetic feedstock, and adding a stabilizer to the synthetic feedstock to reduce contamination. The disclosure also provides compositions including a synthetic feedstock derived from plastic and an antioxidant.

The invention discloses core-shell structure composite powder and a preparation method and application thereof.The core-shell structure composite powder is core-shell structure nickel-coated aluminum composite powder, and the core-shell structure nickel-coated aluminum composite powder comprises inner core aluminum powder and an outer shell nickel layer on the surface of the aluminum powder; the core-shell structure composite powder is prepared by adopting a method of combining ultrasonic chemistry and high-pressure liquid phase reduction. The core-shell structure composite powder provided by the invention is widely applied to various fields of railways, aviation, electric power, chemical engineering, petroleum, automobiles, metallurgy and the like. In the spraying process, nickel and aluminum can generate a strong alloying exothermic reaction, and a firm coating can be formed on the surface of a matrix in a metallurgical bonding mode, so that the coating has a wide application prospect especially in the spraying field.

The invention relates to the technical field of coal dechlorination, and provides a chain plate type leaching dechlorination system which comprises an immersion pool, the rack is divided into an immersion section and a leaching section, the immersion section is located in the immersion pool, and one end of the leaching section is located outside the immersion pool; the chain plate conveying belt is circularly and movably arranged on the rack and provided with a plurality of first partition plates, and the first partition plates are evenly distributed at intervals; the number of the guard plates is two, and the two guard plates are arranged on the two sides of the rack. The multiple material containing plates are arranged relative to the chain plate conveying belt in a swinging mode and located between the adjacent first partition plates. A material containing space is formed among the adjacent first partition plates, the two protection plates and the material containing plate. The material containing plate swings to enable the material containing space to swing; after the chain plate conveying belt circularly moves, the plurality of material containing spaces are sequentially separated from the immersion pool. By means of the technical scheme, the problems that in the prior art, coal can only be conveyed outwards after being dechlorinated in a dechlorination pool, and the overall production efficiency is low are solved.

The invention relates to the technical field of coal saving agents, and discloses a coal saving agent which is composed of a combustion improver, an oxidant, an emulsifier, a catalyst, a solvent, a thickener and a pH regulator. Wherein the combustion improver is a mixture of calcium nitrate tetrahydrate, calcium chloride, sodium chloride, sodium thiosulfate, D-trehalose, base oil, dicyclohexylamine and sodium acetate; the oxidant is sodium nitrate; the emulsifier is a mixture of polyethylene glycol monooleate and Tween 20; the catalyst is ferrocene; the pH regulator is hydrochloric acid; the solvent is a mixture of water and methanol. The coal-saving agent comprises a plurality of combustion improvers, such as calcium nitrate tetrahydrate, calcium chloride, sodium chloride, sodium nitrate, sodium thiosulfate, D-trehalose, dicyclohexylamine, sodium acetate and the like. The combustion improvers can promote the combustion reaction from different aspects in the coal combustion process, and the combustion improvers cooperate with one another, so that the combustion efficiency of the coal is remarkably improved.

The invention relates to the technical field of fire coal additives, in particular to a high-efficiency coal saving agent and a preparation method thereof. The coal saving agent is prepared from the following raw materials in percentage by mass: 7-14% of an oxygen supply agent, 5-12% of a combustion improver, 5-13% of a catalyst, 0.1-1% of industrial waste residues, 1-3% of a desulfurization additive, 1-2% of a dispersing agent and the balance of deionized water, wherein the catalyst is a Ce-Mn / TiO2 catalyst, and the catalyst is a TiO2 catalyst; the industrial waste slag is selected from at least one of cold-rolled iron oxide slag, nickel slag or steel slag; the desulfurization additive is selected from at least one of calcium acetate, calcium oxide or calcium carbonate. The coal-saving agent can effectively improve the combustion characteristic of coal, improve the combustion efficiency and the combustion effect, and realize the efficient coal-saving effect under the condition of low mixing amount; meanwhile, desulfurization and denitrification can be achieved, emission of sulfide and nitric oxide is reduced, and environmental pollution can be prevented and controlled.

Disclosed is a pyrolysis reaction method including a raw material input step of inputting a raw material and acquiring first data, a pyrolysis reaction step of pyrolyzing the input raw material, a reactant discharge step of discharging a pyrolyzed reactant and acquiring second data, an image sample collection step of additionally obtaining image samples, a DB storage step of normalizing the obtained image samples into time series data and storing RGB code values in a DB, a labeling step of assigning labels to the first data and the second data, a data processing step of comparing the first data and the second data with the data stored in the DB to generate third data and fourth data, and a control value deriving step of deriving control values of a pyrolysis temperature and a pyrolysis time based on the third data and the fourth data.

The invention relates to the technical field of biomass fuel processing, and discloses biomass fuel production and processing equipment, which comprises a granulation box body, a flat die rotationally connected in the granulation box body, a compression roller arranged above the flat die, a rotating assembly mounted at the bottom of the granulation box body and used for driving the flat die to rotate, and a control assembly mounted at the bottom of the granulation box body and used for controlling the compression roller to rotate, the telescopic assembly is mounted on the side wall of the granulating box body and is used for driving the compression roller to move up and down and adjusting the distance between the flat die and the compression roller; and the spacing control system is in communication connection with the control end of the telescopic assembly and is used for accurately controlling the spacing between the flat die and the compression roller. The distance control system obtains raw material characteristics, equipment states and particle quality data in real time, constructs a multi-dimensional evaluation model and dynamically adjusts the distance between the pressing roller and the flat die, the problems that manual adjustment is low in precision and high in machine blockage risk are solved, intelligent and accurate control is achieved, safe operation of equipment is guaranteed, and the particle quality is optimized.

A method of producing an agglomerate mainly composed of carbon of biomass origin is provided. The method of producing an agglomerate mainly composed of carbon includes a grinding step of grinding biomass having a volatile matter of 1 mass% or more and less than 20 mass% on a dry basis to obtain a biomass powder having a maximum particle size of 300 µm or less, and a hot pressing step of compacting the biomass powder at a temperature included in a temperature range of 600 °C or more and 1250 °C or less in an oxygen-deprived environment to obtain an agglomerate.

The invention belongs to the technical field of coal combustion, and particularly relates to an environment-friendly rare earth catalyst as well as a preparation method and application thereof in promoting coal combustion. The catalyst is prepared from composite rare earth oxide, calcium oxide, potassium carbonate, ferrous sulfate, kaolin, diatomite and a multi-component composite assistant component in a specific proportion through the steps of slurry ultrasonic activation, rare earth coating, assistant step-by-step doping, microwave drying, protective atmosphere roasting and the like. The catalyst is unique in structure and good in dispersity, the coal combustion efficiency can be remarkably improved, the burnout temperature and the carbon content of fly ash are reduced, emission of flue gas pollutants such as CO, NOx and SO2 is effectively reduced, and the catalyst is suitable for the fields of energy conservation, carbon reduction and environment-friendly treatment of coal-fired power plants and industrial boilers.

The invention provides application of a Lewis acid-base eutectic solvent in sludge modification, modified sludge, a preparation method and application of the modified sludge, sludge coke slurry and application of the sludge coke slurry, and relates to the technical field of sludge resource utilization. According to the invention, the Lewis acid-base eutectic solvent is adopted to modify the sludge, so that the catalytic degradation of hydrophilic oxygen-containing functional groups (HOFG) in the sludge can be effectively promoted, the interaction between the hydrophilic oxygen-containing functional groups and water molecules is weakened, the conversion from bound water to free water is promoted, and the water content of the sludge is remarkably reduced. Moreover, the Lewis acid-base eutectic solvent promotes bound water to be converted into free water, so that not only is the viscosity of the sludge reduced, but also the flowability of the sludge is improved, and the treatment and processing characteristics of the sludge are optimized. The modified sludge obtained through modification of the Lewis acid-base eutectic solvent is used for preparing slurry fuel, the addition amount of the modified sludge is large, and resource utilization of the sludge is achieved.

The invention belongs to the technical field of slag recycling, and discloses a method for extracting iron ore concentrate from laterite-nickel ore hydrometallurgical slag, which comprises the following steps: heating biomass to 350-600 DEG C in a nitrogen atmosphere for treatment, heating to 350-600 DEG C in a carbon dioxide atmosphere for treatment, cooling, crushing and sieving to obtain biomass charcoal; the laterite-nickel ore hydrometallurgical slag, biomass charcoal and an additive are mixed and then subjected to reduction roasting, and a roasted product is obtained; and adding a dispersing agent into the roasted product, carrying out ball milling, and carrying out size mixing and magnetic separation to obtain iron ore concentrate. The process for extracting the iron ore concentrate from the biomass charcoal is developed for the laterite-nickel ore hydrometallurgical slag, has the advantages of being short in process, low in cost, environmentally friendly, good in recovery effect and the like, and has a positive effect on solving the environmental problems caused by long-term stockpiling, landfill and the like of the laterite-nickel ore hydrometallurgical slag.

The invention discloses a method for recycling laterite-nickel ore metallurgical slag resources, and belongs to the technical field of hydrometallurgy. The method comprises the following steps: carrying out alkaline leaching treatment on the laterite-nickel ore hydrometallurgical slag to obtain alkaline leaching liquid and alkaline leaching slag; carrying out acid leaching treatment on the alkaline leaching residues to obtain acid leaching liquid and acid leaching residues; mixing the acid leaching residues, a biomass reducing agent and an additive, performing primary ball milling treatment, and performing reduction roasting treatment on an obtained product to obtain a roasted product; and mixing the roasted product with a dispersing agent, carrying out secondary ball milling treatment, and carrying out magnetic separation on the obtained product to obtain iron ore concentrate. According to the method, the biomass is carbonized and activated to obtain the biomass reducing agent with enhanced reducibility, the biomass reducing agent is low in cost and environmentally friendly, the biomass reducing agent and the acid leaching residues are continuously mixed according to a specific proportion, reduction roasting is carried out under a specific atmosphere, and then magnetic separation is carried out; and iron ore concentrate with relatively high purity and yield is obtained.

The invention discloses a biomass fuel rod and a production method and application thereof, and belongs to the technical field of biomass fuels, the biomass fuel rod comprises the following components by mass: 60-80 parts of a biomass raw material, 10-20 parts of a binder, 1-5 parts of a combustion improver, 3-8 parts of a sulfur and chlorine fixing agent, 1-3 parts of a denitration agent, and 2-5 parts of an ash content regulator. The production method specifically comprises the following steps: (1) pretreatment: crushing a biomass raw material until the particle size is less than or equal to 2mm, and carrying out pretreatment by adopting baking semi-carbonization; (2) mixing: sequentially adding a binder, a combustion improver, a sulfur-fixing and chlorine-fixing agent, a denitration agent and an ash content regulator which are ground until the particle size is less than or equal to 2mm, and stirring and mixing for 5-10 minutes; (3) forming: carrying out extrusion forming by adopting a twin-screw extruder under the pressure of 15-25MPa and the temperature of 80-100 DEG C to obtain a fuel rod with the density of 1.2-1.4 g / cm < 3 >; the production method is simple and easy to implement, the combustion performance of the produced fuel rod is good, and the combustion efficiency and the environmental protection property are improved.

This solid fuel comprises: a biocoke of at least 85% fixed carbon on the anhydrous ash-free basis; and an inorganic binder containing CaO in a dry state at 50 mass% or higher. This method for producing a solid fuel comprises a step in which a solid fuel is obtained by kneading and molding a molding starting material comprising: a biocoke of at least 85% fixed carbon on the anhydrous ash-free basis; an inorganic binder containing CaO in a dry state at 50 mass% or higher; and water.

A method for treating hazardous waste using a coal-based short-process system belongs to the field of hazardous waste treatment technology. The method of the present invention first performs deep reduction on the material, then uses a coal-based lance to generate heat in a molten bath to heat the material to a molten state, and then uses electrodes to heat the melt to separate the slag and matte, resulting in qualified matte. The molten bath produces high-temperature flue gas rich in carbon monoxide, which is fully combusted in a rotary kiln. When producing alloys, ore and coal are heated and deep reduction is performed. No reducing agent is required to produce matte, and sufficient sulfide allows the ore to be sulfided in the rotary kiln. The rotary kiln and molten bath furnace adopt an integrated configuration to reduce heat loss. Coal powder is directly delivered to the working surface, effectively avoiding the ineffective consumption of carbonaceous reducing agents and further enhancing the reduction effect. The method of the present invention has the characteristics of a short process, simple operation, easy control, strong raw material adaptability, high production efficiency, low production cost, low equipment investment, low energy consumption, high copper recovery rate, and environmental friendliness.

The invention relates to a method for treating a mixture M1 comprising at least an organic material, said method comprising: a) a step of hydrolyzing the mixture M1 to obtain a hydrolyzed mixture M1h, b) a step of pressurizing the mixture M1h to obtain a mixture stream M1p, c) a step of heating the mixture M1p obtained from step b) to obtain a mixture M2, d) a step of solubilizing at least a portion of the mixture M2 obtained in step c), optionally a heating step, and a separation step, to obtain a mixture stream M4 rich in soluble substances and a mixture stream M3 lean in soluble substances, e) a step of cooling and decompressing at least a portion of the mixture stream M4 rich in soluble substances obtained in step d) to obtain a mixture stream M5, f) a step of digesting at least a portion of the mixture stream M5 obtained in step e).

A method for valorizing refuse material comprises a selective pyrolysis, based on: a first step of pyrolysis of the biogenic fraction, with at least one subsequent condensation step, and a second step of pyrolysis of the synthetic fraction with at least one subsequent condensation step; wherein the first and second pyrolysis steps are configured in series; wherein the first pyrolysis step is configured to extract at least a fraction of biogenic combustible gas which continues to the first condensation step, and a fraction of solid material that is transported to the second step of pyrolysis of the synthetic fraction, which is carried out at a higher temperature than the first pyrolysis step, and which is configured to obtain a fraction of synthetic combustible gas which continues to the second condensation step, and a fraction of solid material.

The present invention introduces an intelligent coal gangue washing method guided by deep reinforcement learning and evolutionary computation. It involves several steps: S1 involves installing various sensors at key control points of a jig to achieve comprehensive, real-time data acquisition and maintain consistent data collection frequencies; S2 includes gathering data on a server via OPC protocol, using deep reinforcement learning to devise control strategies for jig operations under good communication, and employing evolutionary algorithms when communication is disrupted; S3 entails sending these control strategies back to the control unit through OPC protocol, enabling automated operation of the jig. This method enhances jig operation efficiency through intelligent control, utilizing deep learning, evolutionary computation, and surrogate models to optimize performance even when operational data is incomplete.

The present invention relates to the technical field of municipal sludge and industrial sludge treatment methods. Disclosed is a hydrothermal carbonization-based method for comprehensively treating iron-containing sludge and straw, comprising the following steps: 1) crushing and sieving straw, primarily dehydrating iron-containing sludge, and adding a catalyst for catalytic wet oxidation treatment; 2) adding wet-oxidized iron-containing sludge and a crushed and sieved fiber to a raw material storage tank and adding a dehydrating agent for dehydration treatment; 3) preheating a raw material conveying tank and then feeding the material into a reactor for a hydrothermal carbonization reaction; 4) collecting the resulting biochar slurry to a collecting tank for cooling; and 5) adding an appropriate amount of pulverized coal to the material and then carrying out plate press dehydration, or directly carrying out plate press dehydration, the material being used as a solid fuel. The present invention integrates two techniques, i.e., anaerobic digestion and hydrothermal carbonization, for sludge treatment, and the process is optimized from material and energy balance perspectives, so that the solid fuel and biochar substances are generated while sludge reduction is realized; moreover, the operation cost of the process is reduced, and the generated hydrothermal carbon can be either returned to the field for use or be used as an additive to promote anaerobic digestion, and also exhibits magnetism and can be recycled.

The invention relates to a manufacturing method of a sludge-biomass fuel rod. The manufacturing method comprises the following steps: S1, sludge pretreatment: dehydrating sludge; s2, sludge crushing treatment: performing crushing treatment on the dewatered sludge to obtain sludge particles with the particle size of less than or equal to 3mm; s3, sludge and biomass are mixed, wherein the sludge particles obtained in the step S2 and biomass particles are stirred and mixed according to the mass ratio of (10-90): (90-10), and a sludge-biomass forming raw material is obtained; s4, sludge-biomass raw material extrusion forming: performing extrusion forming on the sludge-biomass forming raw material obtained in the step S3 to obtain the sludge-biomass fuel rod. Compared with the prior art, the prepared sludge-biomass fuel rod has better combustion characteristics and stability. The sludge can play a bonding role in the fuel rod forming process, a compact body structure is conveniently formed, and forming is convenient; and the biomass is beneficial to improving the combustion characteristic of the fuel rod.

A system for reducing organic waste and increasing biogas production combined with a hydrothermal carbonization device with improved energy consumption efficiency is disclosed. According to one aspect of the present invention, the system for reducing organic waste and increasing biogas production includes: a storage tank for receiving and storing organic waste; an anaerobic digestion tank for receiving the organic waste from the storage tank to digest the organic matter and produce biogas; a dehydrator for primary dehydration of the organic waste discharged from the anaerobic digestion tank; a hydrothermal carbonization device for receiving the dehydrated organic waste and hydrothermal carbonization; and a filter press for secondary dehydration of the hydrothermal carbonization product discharged from the hydrothermal carbonization device.