KR20180023075A - Improvement on Co-firing of Biomass with Coal Biomass Blending ratio, Manufacturing Method and System of Boiler-Torrefaction Fuel Production thereof - Google Patents

Abstract

The present invention relates to a production system of semi-carbonized fuel for a boiler for the improvement of biomass co-firing blending ratio, which removes fusing and high temperature corrosion-inducing components which causes adverse effects on a heat transfer surface of a reactor wall, a heat exchanger, etc. such as fouling, slagging, high temperature corrosion, clinker generation, and the like during a boiler operation using herbaceous, woody, and algae biomass through a physical or chemical method. The production system of semi-carbonized fuel applies solid components after removing the fusing and high temperature corrosion-inducing components as semi-carbonized solid fuel to boiler co-firing to improve the biomass co-firing blending ratio.

Description

[0001] The present invention relates to a method for producing a semi-carbonized fuel for a boiler for improving the biomass mixing ratio,

The present invention relates to a system for producing a semi-carbonized fuel for a boiler for enhancing the biomass mixing ratio, and more particularly, to a system for producing a semi-carbonized fuel for a boiler from an herbaceous system, woody system, algae biomass, fouling, slagging, Cracking, etc., which are adversely affecting the surface of the reactor wall, heat exchanger, etc., are removed by physical and chemical methods, and then the solid phase component is applied to the boiler submerged with semi-carbonated solid fuel, The present invention relates to a semi-carbonized fuel production system for a boiler for improving the biomass mixing ratio.

In Korea, with the depletion of fossil fuels and the reduction of greenhouse gas (GHG) emissions in response to the international treaty, the United Nations Framework Convention on Climate Change, the number of generators (Renewable Portfolio Standard (RPS)), which mandates that renewable energy should be supplied at a rate of more than a certain percentage of the supply certificate, The penalties were imposed so that penalties could be imposed in consideration of the number of reasons and defaults.

As a result, it is a certificate certifying that the power generation company has produced and supplied electricity using new and renewable energy facilities in order to receive the new and renewable energy. The supply obligator purchases the new and renewable energy supply certificate (REC) Renewable Energy Certificate (REC) that multiplies the new and renewable energy amount of MWh supplied from the facility subject to the supply certificate by the weight, It is reviewed by the government every three years in consideration of the impact on technological development and industrial revitalization, cost of development, availability potential, and effect on GHG emission reduction.

Particularly, in the case of biomass coexistence, there is a problem that the power generation efficiency is lowered by burning biomass having a relatively low calorific value as compared with coal.

In addition, since combustion characteristics of biomass and coal injected for confluence are different, multi-stage combustion occurs in existing power plant designed for coal as a raw material, causing problems in facility operation.

Also, there is a problem that clinker or fouling occurs due to an inorganic component including a metal component contained in the biomass. In order to solve these problems, in the previous research, a technique of applying fuel mixed with oil-based biomass to coal was developed. In the case of fuel simply mixed with coal and oil-based biomass, the surface of the coal is generally coated with oil or partially impregnated with oil into the pores. However, due to the low surface tension of the oil itself and the lack of bonding between the oil-based biomass and the coal surface, coal and biomass retain their existing combustion characteristics, resulting in different combustion characteristics. Therefore, when this is applied to a power plant, oxygen is preferentially consumed excessively due to the low-temperature combustion pattern of the oil in the front part of the burner, which eventually inhibits the combustion of coal, thereby increasing the amount of unburned carbon and decreasing power generation efficiency .

The typical aggregation phenomena of ash in the biomass is caused by slagging, clinker, fouling, and fluidized bed combustion in the pulverized coal combustion furnace, As well as agglomeration.

It is expected that the superheater tube of the power plant will be abraded by high temperature chlorine, the abrasion caused by the flow velocity change due to the condenser tube clogging, the tube wear due to the fluidized bed of the fluidized bed combustor and the mechanical wear of the chute blower, KCl (melting temperature 776 ℃) is a viscous material that is well adhered and is known to accelerate corrosion by chlorine reaction when potassium and chlorine form KCl through chemical bonding in the combustion process.

Such a phenomenon in the furnace not only becomes a major cause of the decrease in the efficiency of the process, but ultimately, if such a phenomenon becomes severe, the operation must be stopped, thereby causing a great economic loss. The coagulation phenomena of ash is generally influenced by ash composition, temperature, particle size, gas atmosphere, operating conditions, etc. Especially, when a part of ash is melted at high temperature, such phenomenon accelerates.

Meanwhile, a number of known documents for addressing the above problems are as follows.

Korean Patent Laid-Open Publication No. 2014-0068691 discloses a technique for drying a biomass raw material for 20 to 40 minutes and half-carbonizing the raw material at 150 to 350 ° C.

In Japanese Patent No. 2688509, the bran is washed with water to remove the water-soluble substance, and then treated with an aqueous alkali solution of 0.1 to 0.4. The fraction mainly composed of hemicellulose is eluted into the aqueous alkali solution. And extracting and purifying hemicellulose.

Korean Patent No. 10-0476239 discloses a process for preparing water soluble and insoluble hemicellulose from rice hulls, comprising the steps of (1) removing protein from rice hulls and washing rice hulls; (2) extracting the rice hulls with a sodium hydroxide solution having a concentration of 0.5 to 1 M and filtering the same; (3) adding phosphoric acid to the alkali extraction solution obtained in step (2) to lower the pH of the solution to recover hemicellulose by precipitation; (4) a step in which the precipitate obtained in step (3) is further washed with phosphoric acid or oxalic acid and then decolorized by treatment with oxalate-potassium permanganate; (5) Separation of water-soluble and insoluble hemicelluloses is possible through pH control of the solution from the decolorized hemicellulose fraction obtained in the above step. In the recovery of water-soluble hemicellulose, phosphoric acid is recovered by precipitation or added with calcium to be insoluble The next recovering step; (6) A process for producing fine powder from a rice husk comprising a step of obtaining a powder by natural drying or spray drying the water-soluble and insoluble hemicellulose obtained through a series of such continuous processes, and then milling and passing the fine- Discloses a process for preparing water-soluble and insoluble hemicellulose.

Korean Patent Laid-Open Publication No. 2002-0017572 discloses a method of mixing and dewatering a waste water treatment sludge, a crushing step, and a manufacturing step of a regenerated sludge.

Korean Patent Publication No. 10-1457470 discloses a process for extracting hemicellulose from a biomass; b) precipitating and separating hemicellulose from the hemicellulose extract; And c) introducing the separated hemicellulose into a papermaking process, wherein the a) extracting step comprises the steps of: adding NaOH to the bran biomass at 135-160 for 70-180 minutes; To 25% of the total weight of the extract, the extraction ratio is 1: 8 to 1:16. In the step b), acetone is mixed with the hemicellulose extract to precipitate and separate hemicellulose. In the step c), the separated hemicellulose Characterized in that a polydicyanediamide electrolyte having a molecular weight of 300,000 to 700,000 and a cationic charge density of 3 to 7 meq / g using dicyandiamide as a fixing agent is used as a fixing agent for fixing in paper. A paper manufacturing method is disclosed.

Evstigneyev, E., Russian Journal of Applied Chemistry. 2011, Vol. 84, no. 6, pp. In 1040-1045, the solubility of the black liquor in the aqueous solution of NaOH due to the digestion process of spruce and pine was studied under the conditions of molecular weight, temperature, liquid ratio and ionic strength of lignin, and the method of measuring the amount of phenolic hydroxyl in lignin, The solubility of lignin in the solution was calculated.

However, in the prior arts known to date, lignin is removed from biomass and physicochemical treatment is applied to extract hemicellulose, which is a main component of cellulose and xylose, which glucose is a main component, but a drug such as acid or alkali There is a problem in that the process is complicated because it involves a process of recovering used chemicals as well as an increase in the cost of the medicament. In order to apply the separated ingredients to a desired raw material, In many cases. In addition, various contents such as cellulosic, hemicellulose, lignin and the like, as well as the molecular structure, functional group and ash content are present depending on the kind of the raw material of the biomass, and various decomposition enzymes and decomposition conditions must be satisfied during saccharification for the bioethanol process . As a result, the extraction and separation conditions of the desired substance are not reliable.

Therefore, in order to promote the utilization and diffusion of new and renewable energy and secure the supply stability of biomass fuel, it is necessary to remove the fusing and high temperature corrosion inducing components in biomass to eliminate the process problems caused by ash, There is an urgent need to develop a technology for a fuel production system for a boiler that can effectively extract and separate low fuel materials and utilize them to improve the biomass mixing ratio of the boiler.

Korean Patent Publication No. 2014-0068691 Japanese Patent No. 2688509 Korean Patent No. 10-0476239 Korean Patent Publication No. 10-0413384 Korean Patent Publication No. 2002-0017572

 Evstigneyev, E., Russian Journal of Applied Chemistry. 2011, Vol. 84, no. 6, pp. 1040-1045

DISCLOSURE OF THE INVENTION The present invention has been devised in order to solve the above-mentioned problems, and it is an object of the present invention to provide a process for producing a fermentation product, which comprises a reactor wall, a heat exchanger, and the like such as fogging, slagging, Improvement of biomass mixing ratio which can increase the biomass mixing rate by removing the fusion and high-temperature corrosion inducing components which cause adverse effects on the heat transfer surface by physical and chemical methods and applying the solid phase component to the boiler submerged with the semi-carbonized solid fuel Carbonized fuel production system for a boiler.

To this end, the present invention comprises a grinding unit 100 for forming a biomass into a raw material of a predetermined size; A hopper 200 for storing the raw material; A raw material supply feeder 210 for supplying the raw material stored in the hopper to a downstream end in a fixed amount; A component separation unit (300) for treating the raw material supplied from the raw material supply feeder with hot water at a predetermined temperature so as to maximally separate the fusion-welding and high-temperature corrosion-inducing components from the raw material supplied from the raw material supply feeder; A pelletizing unit (400) for pelletizing the separated fuel in the component separating unit; And a semi-carbonization unit (500) for carbonizing the pelletized fuel in the pelletization unit. The system may further include a semi-carbonized fuel production system for boiler for improving the biomass mixture rate.

A grinding unit 100 for forming the biomass into a raw material of a predetermined size; A hopper 200 for storing the raw material; A raw material supply feeder 210 for supplying the raw material stored in the hopper to a downstream end in a fixed amount; A component separation unit (300) for treating the raw material supplied from the raw material supply feeder with hot water at a predetermined temperature so as to maximally separate the fusion-welding and high-temperature corrosion-inducing components from the raw material supplied from the raw material supply feeder; A semi-carbonization unit (500) for carbonizing the fuel from which the fusion and hot corrosion-inducing components supplied from the component separation unit have been removed, and a pelletizing unit (400) for pelletizing the semi-carbonized fuel in the semi-carbonization unit; Carbonized fuel production system for a boiler for improving the biomass mixing ratio.

In addition, the liquid component discharged from the component separation unit may include the fusion-bonding and high-temperature corrosion-inducing component.

In addition, the solid phase component discharged from the component separation unit may include a combustible component in which the fusion-bonding and high-temperature corrosion-inducing component are separated.

The pH of the liquid component discharged from the component separation unit may be 6 or less.

Further, the liquid component separated from the organic compound in the liquid component may be recycled to the component separation unit.

In addition, the gaseous component discharged from the semi-carbonization unit may include an organic compound including an acid gas.

In addition, in the semi-carbonized fuel production system for a boiler for improving the biomass mixing ratio, the semi-carbonized fuel may be mixed up to 50 parts by weight or less in a boiler using fossil fuel.

A grinding unit 100 for forming the biomass into a raw material of a predetermined size; A hopper 200 for storing the raw material; A raw material supply feeder 210 for supplying the raw material stored in the hopper to a downstream end in a fixed amount; A semi-carbonization unit (500) for carbonizing the fuel supplied from the raw material feeder; A pelletizing unit (400) for pelletizing the semi-carbonized fuel in the semi-carbonization unit; And a component separation unit (300) which treats the raw material supplied from the pelletizing unit with hot water at a predetermined temperature so as to maximize the separation of fusion welding and high temperature corrosion inducing components after combustion. Carbonized fuel production system for a boiler to improve the biomass mixing ratio.

In addition, the biomass may be formed in the crushing unit 100 as a raw material having a predetermined size. A second step of storing the raw material in the hopper 200; A third step of supplying the raw material stored in the hopper to a downstream end of the raw material feeder 210 in a fixed amount; A fourth step of treating the raw material supplied from the raw material supply feeder with hot water at a predetermined temperature so as to maximally separate the fusion-induced and high-temperature corrosion-inducing components after combustion in the component separation unit 300; A fifth step of pelletizing the fuel in which the fusing and hot corrosion-inducing components are separated in the component separating unit, in the pelletizing unit (400); And a sixth step of carbonizing the pelletized fuel in the pelletizing unit in the semi-carbonization unit 500. The method may further include a step of producing a semi-carbonized fuel for boiler for improving the biomass mixing ratio.

According to the semi-carbonized fuel production system for the boiler for improving the biomass mixing ratio of the present invention, it is possible to efficiently and efficiently weld and thermally induce corrosion-inducing components from herbaceous or woody biomass through low temperature / It is possible to selectively extract raw materials for biomass burning and / or confluence in the boiler.

In addition, it effectively removes the fusing and high temperature corrosion inducing components of alkaline and alkaline earth metals, halogens, etc. contained in the biomass and effectively reduces the clinker, fouling and alkali corrosion problems that may occur during operation of the combustion system when applied to power generation fuels. can do.

In addition, since the molded fuel and semi-carbonized fuel are produced using cellulose, hemicellulose and lignin of the biomass from which fusing and high temperature corrosion inducing components are removed, the ash resulting from biomass after combustion and gasification in the fluidized bed and undifferentiated combustion furnace and gasification furnace It is possible to eliminate the problem of fouling of clinker and high-temperature corrosion which are expected to be expected from the present invention.

Further, by applying the membrane filtering process, the fusion of the liquid components of the biomass and the high-temperature corrosion-inducing component are effectively separated, thereby securing the liquid organic compound fuel and recycling the treated water.

1 is a flowchart illustrating a system for producing a semi-carbonized fuel for a boiler for improving the biomass mixing ratio according to the present invention.
FIG. 2 is a graph showing changes in the composition of raw materials before and after the fusion and high-temperature corrosion-inducing component separation unit in the semi-carbonized fuel production system for boiler for improving the biomass mixing ratio according to the present invention.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms and the inventor may appropriately define the concept of the term in order to best describe its invention It should be construed as meaning and concept consistent with the technical idea of the present invention. Therefore, the embodiments described herein are merely the most preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention, so that there are various equivalents and modifications that can be substituted at the time of the present application It should be understood.

The coal used for the boiler fuel used in the present invention means any one or more selected from peat, lignite, bituminous coal, bituminous coal or anthracite coal, which are recognized in the art.

As biomass raw materials, woody plants and herbaceous plants can be used. Woody lines include wood blocks, wood chips, logs, tree branches, wood crumbs, leaves, wood boards, sawdust, lignin, xylenes, lignocellulosic, palm trees, palm kernel shells, palm fiber, empty fruit bunches (EFB) , Fresh fruit bunches (FFB), palm leaves, coconut crumbs, and the like. Herbal products include corn stover, straw straw, canteen, sugar cane, grain (rice, millet, coffee, etc.) husks, candy leaves, bagasse, millet, artichoke, molasses, flax, hemp, Biomass such as starchy maize, potato, cassava, wheat, barley, lime, other starch-based remnants, fruit-bearing avocados, jatropha and their processing residues can be used.

Algae can be used as biomass feedstock. Green algae, Cyanobacteria, Diatom, Red algae, Chlorella, Spirulina, Dunaliella, Porphyridium, Phaeodactylum can be used as algae.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a system for producing a composite fuel using ash-reducing biomass according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a flowchart illustrating a fuel production system for a boiler in which fusing and hot corrosion-inducing components are removed according to the present invention.

A crushing unit (100) for forming the biomass into a raw material of a predetermined size; A hopper 200 for storing the raw material; A raw material supply feeder 210 for supplying the raw material stored in the hopper to a downstream end in a fixed amount; A component separation unit (300) for treating the raw material supplied from the raw material supply feeder with hot water at a predetermined temperature so as to maximally separate the fusion-welding and high-temperature corrosion-inducing components from the raw material supplied from the raw material supply feeder; A pelletizing unit (400) for pelletizing the separated fuel in the component separating unit; And a semi-carbonization unit (500) for carbonizing the pelletized fuel in the pelletizing unit. The system may be a semi-carbonized fuel production system for boiler for improving the biomass mixing ratio.

The biomass may be a herb, cornstalks, wood pellets, or the like.

The biomass may be at least one of second generation, third generation biomass, and combustible solid waste.

The combustible solid waste may include waste paper, agricultural waste, scrap wood, vegetable residue, herbaceous waste, and the like.

Class 2 and 3 Waste wood (Class 2: Waste wood that has been contaminated with or contaminated with adhesives, paints, oils, and concrete during processing, processing, or use (except for halogenated organic compounds and waste wood treated and contaminated with preservatives) ), Class 3: Waste wood that has been or is contaminated with halogenated organic compounds or preservatives during the processing process and quality grade of solid fuel products as defined in Article 20-3, Paragraph 2 of the Enforcement Rule of the Law Concerning the Promotion of Reduction and Recycling of Resources Waste wood chips that do not meet the criteria, and other waste wood that does not fall in classes 1 to 2 above). (Ministry of Environment Notification No. 2012-117)

The predetermined size may be 500 mm or less.

Preferably 10 mu m to 300 mm or less.

More preferably 20 mm to 50 mm or less.

If the particle size is out of the above range, the pulverization cost may be excessively high, or the efficiency of the fusion and removal of the high temperature corrosion-inducing component may be lowered.

The crushing unit may perform crushing and / or grinding. The crushing unit can use any of physical characteristics such as compression, impact, friction, shearing and bending, and the method is not limited as long as it can achieve the purpose of reducing the size of the biomass such as cutting and enlarging the surface area.

The crushing unit may be a jaw crusher, a gyratory crusher, a roll crusher, an edge runner, a hammer crusher, a ball mill, a jet mill mill, and a disk crusher.

The raw material supply feeder is not particularly limited as long as it can supply the raw material quantitatively to the downstream end. Preferably, there are a screw feeder and a lock hopper.

The fusion and high-temperature corrosion-inducing components are physically and chemically adhered to the surface of the reactor wall, the heat exchanger, and the downstream-end flue-gas treating facility of the downstream reaction stage among the inorganic components contained in the biomass used in the combustion reaction to generate fouling, slagging, , Cracking, and the like.

The fusing and hot corrosion-inducing component may be an alkali, alkaline earth metal, or a halogen group element.

Preferably, it may be sodium, potassium or chlorine.

The temperature of the injection water for the hot water treatment at the predetermined temperature may be 0 to 100. And preferably from 40 to 80. [ The time for the feedstock to stay in the fusing and hot corrosion-inducing component separation unit may be 10 minutes to 2 hours.

Beyond the above temperature and time conditions, the efficiency of the removed component is low or the process cost is high.

The amount of heat input per unit feedstock varies depending on the type of biomass, and may be defined as BTW (Biomass to Water, kg / kg). Preferably 0.02 to 0.5, and more preferably 0.11 to 0.18 (based on weight, wood pellet, corn vs. 1/6).

If the BTW ratio is exceeded, the separation efficiency of the induced component becomes low.

The blending condition may be 1 wt% to 50 wt% of the conventional fossil fuel. , Preferably from 3 wt% to 40 wt%, and more preferably from 5 wt% to 30 wt%.

The fusion component and the hot corrosion-inducing component may be included in the liquid component discharged from the fusion-bonding and high-temperature corrosion-inducing component separation unit.

The liquid component may be an aqueous solution containing a small amount of organic compounds and fusion and hot corrosion-inducing components. The organic compound may include carbon, hydrogen, nitrogen, oxygen, and sulfur. Preferably, the liquid component may comprise hemicellulose, organic acid, furfural, 5-hydroxymethylfufural (5-HMF) and inorganic.

The solid phase component discharged from the fusing and high temperature corrosion-inducing component separating unit may include a combustible component in which the fusion-bonding and high-temperature corrosion-inducing component are separated.

The combustible component may be an organic compound. The combustible component may include carbon, hydrogen, nitrogen, oxygen, and sulfur.

The pH of the liquid component may be 6 or less.

More preferably, the pH may be 2.5 to 4 or less.

The pH of the liquid component has a technical feature that the pH is lowered by the organic acid in the raw material. Examples of the organic acid include acetic acid, formic acid, propanoic acid, 4-hydroxybutanoic acid, and 2-butenoic acid.

In addition, acetic acid (C ₂ H ₄ O ₂ ), formic acid (HCOOH), propanoic acid (CH ₃ CH ₂ COOH), 4-hydroxybutanoic acid, It is possible to add at least one of 2-butenoic acid, sulfuric acid (H2SO4), hydrochloric acid (HCl), nitric acid (HNO3), phosphoric acid (H3PO4), peracetic acid (C2H4O3), acetic acid (CH3COOH), oxalic acid (C2H2O4) have.

The added amount of the acid solution may be 10 wt% or less with respect to the total amount of applied heat.

The pH by adding the acid solution may preferably be 4 or less.

More preferably, the pH may be 2.5 to 4 or less.

The aqueous solution having a low pH, from which the organic compound is separated from the liquid component, may be recycled to the fusion and hot corrosion-inducing component separation unit (400).

In order to remove the organic compound from the liquid component, at least one of centrifugal separation, flocculation, adsorption, filtration membrane and ion exchange resin may be applied.

The semi-carbonizing unit may include a fuel storage device, a transfer device, and a raw material collecting part in which the fusing and hot corrosion-inducing components are removed through rotation.

The inside of the rotator may include an inner rotating tube. The ratio of the outer diameter of the inner rotating tube to the inner diameter of the rotating tube may be 0.9 or less. Preferably, the ratio of the outer diameter of the inner rotating tube to the inner diameter of the rotating body may be 0.6 or less. The carbonization efficiency may be effective only within the above-described range of the diameter ratio.

The rotation of the inner rotary tube may be opposite to the rotation direction of the rotary shaft. The inner rotating tube may have a concavoconvex shape or a screw shape. The raw material collecting part may include a pressure and / or temperature sensor.

The raw material collecting portion may include a gas discharge valve.

The raw material collecting unit may include a load cell.

The raw material collecting part may include a gas concentration sensor.

The semi-carbonization temperature of the inner rotating tube of the semi-carbonization unit may be from 150 to 250. Preferably from 180 to 230, and more preferably from 190 to 210. [ Outside the semi-carbonization temperature range, the raw material may be completely carbonized or its volume, calorific value, and crushability may be deteriorated.

The semi-carbonization condition of the semi-carbonization unit may be performed on an inert gas.

And may further comprise a recycle unit for separating the liquid component of the organic compound.

The recycling unit may be any one or more of a microfilter, an ultrafilter, a nanofilter, and a reverse osmosis membrane. In addition, water, an acidic solution, and a basic solution can be injected to the front end or the rear end of the recirculation unit for adjusting pH and concentration. Further, the solid component in the liquid phase component can be separated at the front end or the rear end of the recirculation unit by using at least one of water evaporation, centrifugal separation, precipitation, precipitation, agglomeration, and adsorption. Hemicellulose in the liquid component can be separated and used as dietary fiber.

Any one or two units of the cleaning unit and the moisture removal unit for cleaning may be added to the downstream of the fusion and high-temperature corrosion-inducing component separation unit.

The gas phase component discharged from the semi-carbonization unit may include an organic compound including an acid gas.

The organic compound may be used as a heat source for the semi-carbonized fuel production system for the boiler. The organic compound may include hemicellulose, acid gas, furfural, pyrolysis flammable gas, and the like. The organic compound may be used as a heat source in a semi-carbonized fuel production system for boilers for improving the biomass mixing ratio.

In the semi-carbonized fuel production system for a boiler for improving the biomass mixing ratio, the semi-carbonized fuel may be mixed with less than 50 parts by weight in a boiler using fossil fuel.

The semi-carbonized fuel may be in the range of 0.01 to 0.5 in the boiler using fossil fuel.

Preferably 0.05 to 0.4. More preferably 0.3. If the above horn consumption is exceeded, problems such as fouling, clinker, piping erosion and the like may be caused due to corrosive and low melting point substances present on the coarse fuel.

A first step of forming the biomass into a raw material of a predetermined size in the crushing unit (100); A second step of storing the raw material in the hopper 200; A third step of supplying the raw material stored in the hopper to a downstream end of the raw material feeder 210 in a fixed amount; A fourth step of treating the raw material supplied from the raw material supply feeder with hot water at a predetermined temperature so as to maximally separate the fusion-induced and high-temperature corrosion-inducing components after combustion in the component separation unit 300; A fifth step of pelletizing the fuel in which the fusing and hot corrosion-inducing components are separated in the component separating unit, in the pelletizing unit (400); And a sixth step of carbonizing the pelletized fuel in the pelletizing unit in the semi-carbonization unit 500. The method may further include a step of producing a semi-carbonized fuel for boiler for improving the biomass mixing ratio.

100: Crushing unit
200: Hopper
210: feed feeder
300: fusion welding and high temperature corrosion inducing component separation unit
400: Pelletizing unit
500: Half Carbonization Unit

Claims (10)

A crushing unit (100) for forming the biomass into a raw material of a predetermined size;
A hopper 200 for storing the raw material;
A raw material supply feeder 210 for supplying the raw material stored in the hopper to a downstream end in a fixed amount;
A component separation unit (300) for treating the raw material supplied from the raw material supply feeder with hot water at a predetermined temperature so as to maximally separate the fusion-welding and high-temperature corrosion-inducing components from the raw material supplied from the raw material supply feeder;
A pelletizing unit (400) for pelletizing the separated fuel in the component separating unit; And
And a half-char combustion unit (500) for carbonizing the pelletized fuel in the pelletizing unit
A system for the production of semi - carbonized fuel for boilers for improving the biomass mixing rate.
A crushing unit (100) for forming the biomass into a raw material of a predetermined size;
A hopper 200 for storing the raw material;
A raw material supply feeder 210 for supplying the raw material stored in the hopper to a downstream end in a fixed amount;
A component separation unit (300) for treating the raw material supplied from the raw material supply feeder with hot water at a predetermined temperature so as to maximally separate the fusion-welding and high-temperature corrosion-inducing components from the raw material supplied from the raw material supply feeder;
A semi-carbonization unit (500) for carbonizing the fuel from which the fusion and hot corrosion-inducing components supplied from the component separation unit are removed,
A pelletizing unit (400) for pelletizing the semi-carbonized fuel in the semi-carbonization unit; Containing
A system for the production of semi - carbonized fuel for boilers for improving the biomass mixing rate.
3. The method according to claim 1 or 2,
Wherein the liquid phase component discharged from the component separation unit includes the fusion welding and high temperature corrosion inducing component
A system for the production of semi - carbonized fuel for boilers for improving the biomass mixing rate.
3. The method according to claim 1 or 2,
Wherein the solid phase component discharged from the component separating unit comprises a combustible component in which the fusion-bonding and high-temperature corrosion-inducing component are separated
A system for the production of semi - carbonized fuel for boilers for improving the biomass mixing rate.
3. The method according to claim 1 or 2,
Wherein the pH of the liquid component discharged from the component separation unit is 6 or less
A system for the production of semi - carbonized fuel for boilers for improving the biomass mixing rate.
6. The method of claim 5,
Characterized in that an organic compound in the liquid component is separated and recycled to the component separation unit
A system for the production of semi - carbonized fuel for boilers for improving the biomass mixing rate.
3. The method according to claim 1 or 2,
The gas phase component discharged from the semi-carbonization unit includes an organic compound including an acid gas
A system for the production of semi - carbonized fuel for boilers for improving the biomass mixing rate.
3. The method according to claim 1 or 2,
Characterized in that the semi-carbonized fuel in a boiler semi-carbonized fuel production system for improving the biomass mixing ratio can be mixed up to 50 parts by weight or less in a boiler using fossil fuel.
A crushing unit (100) for forming the biomass into a raw material of a predetermined size;
A hopper 200 for storing the raw material;
A raw material supply feeder 210 for supplying the raw material stored in the hopper to a downstream end in a fixed amount;
A semi-carbonization unit (500) for carbonizing the fuel supplied from the raw material feeder;
A pelletizing unit (400) for pelletizing the semi-carbonized fuel in the semi-carbonization unit; And
A component separation unit (300) for treating the raw material supplied from the pelletizing unit with hot water at a predetermined temperature so as to maximally separate the fusion-welding and high-temperature corrosion-inducing components from the raw material supplied from the pelletizing unit;
Containing
A system for the production of semi - carbonized fuel for boilers for improving the biomass mixing rate.
A first step of forming the biomass into a raw material of a predetermined size in the crushing unit (100);
A second step of storing the raw material in the hopper 200;
A third step of supplying the raw material stored in the hopper to a downstream end of the raw material feeder 210 in a fixed amount;
A fourth step of treating the raw material supplied from the raw material supply feeder with hot water at a predetermined temperature so as to maximally separate the fusion-induced and high-temperature corrosion-inducing components after combustion in the component separation unit 300;
A fifth step of pelletizing the fuel in which the fusing and hot corrosion-inducing components are separated in the component separating unit, in the pelletizing unit (400); And
And a sixth step of carbonizing the pelletized fuel in the pelletizing unit in a half-carbonization unit (500)
Production method of semi - carbonized fuel for boiler for improving biomass mixing ratio.

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