KR20200099990A - The fuel composition including the cast of black soldier fly with palm shell - Google Patents

Abstract

The present invention relates to a fuel composition comprising Hermetia illucens casting and coconut shell, and more specifically, to a fuel composition that can be used for heating as a solid fuel by including Hermetia illucens casting, coconut shell, wood waste, sesame dregs and molding binder. The fuel composition of the present invention uses Hermetia illucens casting and coconut shells to increase economic efficiency by recycling resources, increases calorific value to exhibit excellent fuel quality, and has excellent durability such as tensile strength, thereby improving convenience in transportation and storage.

Description

The fuel composition including the cast of black soldier fly with palm shell}

The present invention relates to a composition for fuel comprising fecal soil and coconut shells in Dongae, etc., and more particularly, including fecal soil, coconut shells, wood waste, sesame seeds and molding binders in Dongae, etc., which can be used for heating, etc. It relates to a fuel composition.

Currently, organic wastes such as food wastes discharged from homes and restaurants, organic wastes from industrial sites, livestock meals and human meals from livestock sheds can cause serious environmental problems in soil and rivers if discharged without treatment.

Conventionally, a method of recycling organic waste as feed or compost for livestock through a specific treatment process, a method of landfilling in a certain area or dumping in the sea was mainly used, but in this case, the economical problem in terms of installation cost and maintenance cost of the treatment device There is this. In addition, when the discharged material is used as feed, side effects such as lumping are large, and composting also has problems such as reheating and ineffectiveness imbalance.

In addition, Korea, which has high energy dependence on petroleum, is experiencing many difficulties nationally due to the recent unstable international oil price market. In order to overcome this, a number of policies on the development of green energy and new and renewable energy have been announced as a national policy, and the efforts of companies to realize this are also urgent.

Wood pellets, which are one of the related technologies, have excellent combustion efficiency due to densification, excellent ignition and preservation properties, and are very easy to store and transport due to their small size, and have eco-friendly advantages due to low sulfur content and ash content.

However, since wood pellets use wood or wood by-products as main raw materials, the production volume and cost competitiveness of wood pellets in Korea, where wood resources are not abundant, are inferior, and when pellets are manufactured using hay such as straw, lignin Due to its low content, the durability of the pellets is low, and there is a disadvantage in that an additional binder is required.

Accordingly, Korean Patent Registration No. 10-1771210 discloses a fuel composition including fecal soil and fat in Dongae, etc., but there is a need to improve its performance.

Korean Patent Registration No. 10-1771210

The present invention has been conceived to solve the above problems, and an object of the present invention is to provide a composition for fuel with improved performance by additionally using a recycled material capable of improving the performance of fecal soil and fuel in Dongae, etc.

The present invention provides a fuel composition comprising 10 to 100 parts by weight of coconut shells, 10 to 50 parts by weight of wood waste, 10 to 50 parts by weight of sesame seeds, and 1 to 30 parts by weight of a molding binder based on 100 parts by weight of fecal soil in Dongae, etc. do.

The Dongae-deunge fecal soil may be obtained by removing Dongae-deung-e from a product obtained while treating organic waste by Dongae-eung-e.

The dungae etc. fecal soil may have a moisture content of 1 to 20%.

The coconut shell and sesame seeds may be mixed in a weight ratio of 1: 0.1 to 1.

The sesame paste may be any one selected from the group consisting of sesame seed meal, perilla seed meal, soybean meal, corn meal, rapeseed meal, rice bran meal, cotton seed meal, flax meal, grape seed meal, olive seed meal, coffee meal and sunflower seed meal.

The sesame seeds may be mixed in a weight ratio of 1 to 1: 0.5 to 1 of sesame seeds and coffee grits.

The binder may be starch, modified starch, dextrin, cellulose, modified cellulose, guar gum, polyvinyl alcohol, waste molasses, or a mixture thereof.

The fuel composition of the present invention uses fecal soil and coconut shells in Dongae, etc. to increase economic efficiency by recycling resources, and to increase the calorific value to show excellent fuel quality, and to improve convenience such as transport and storage due to excellent durability such as tensile strength. It works.

In addition, the fuel composition of the present invention can secure a calorific value while significantly reducing the content of wood waste compared to conventional fuels, and can minimize the soot caused by the coconut shell, so that it can be widely used as an economical and eco-friendly fuel. I can.

Hereinafter, the present invention will be described in detail with reference to the drawings. The terms or words used in the present specification and claims should not be construed as being limited to their usual or dictionary meanings, and the inventor may appropriately define the concept of terms in order to describe his own invention in the best way. It should be interpreted as a meaning and concept consistent with the technical idea of the present invention based on the principle that there is.

The present invention provides a composition for fuel containing fecal soil, coconut shells, wood waste, sesame seeds, and a molding binder in Dongae and the like.

The Dongae et al. fecal soil may preferably include those obtained by treating organic wastes with Dongae et al.

For example, the fecal soil in the Dongae etc. may mean that the larvae in the Dongae etc. ingest and digest organic waste and then excrete them.

The Dongae etc. fecal soil may be a total product obtained by treating organic wastes with Dongae etc., and may be a product from which Dongae etc.

In general, in Dongae et al., the growth period from egg to adult is 37 to 41 days, and the period of larval state acting as a decomposer is about 14 days.

If 5,000 larvae are added to Dongae et al. to 10kg of food waste, more than 80% of the food waste is decomposed in about 5 days, and the volume of the decomposed food waste is about 42% and the weight is reduced to about 70% compared to before the larvae were added. Dongaee larvae have a much more effective advantage when treating organic wastes in Dongae et al. because the period for decomposing organic waste resources is longer than that of earthworms or houseflies.

Dongae et al. larvae are difficult to live at temperatures below about 27℃, and produce fecal soil by treating organic waste while actively moving at a temperature of 30℃ to 42℃. In addition, larvae in Dongae et al. have the habit of crawling out to find a dry place to become a pupa after about 14 days, which is the period of larvae that can decompose organic waste.

The organic waste may be any one or more selected from the group consisting of livestock manure, organic sludge, and food waste, but is not limited thereto.

The Dongae et al. fecal soil may be obtained by treating organic waste with eggs, larvae, or a mixture thereof.

The fecal soil may have a moisture content of 1 to 20%, preferably 7 to 15%.

If the moisture content of the fecal soil is less than the stated range, it is advantageous in terms of combustion efficiency, but the time and cost for drying increase and the stability after molding is reduced.If it exceeds the above range, the fuel solidified by steam generated during the molding process Defects and the like may occur in the composition.

The fecal soil in the Dongae et al. may contain 1 to 100 parts by weight, preferably 10 to 90 parts by weight, and more preferably 30 to 80 parts by weight, based on 100 parts by weight of the solid content of the fuel composition. I can.

In addition, the composition for fuel according to the present invention includes a coconut shell.

The coconut shell refers to a palm byproduct remaining after palm oil is extracted from the palm fruit.

Although the coconut shell is a by-product discarded in the processing process, most of the components are made of fibers capable of releasing a large amount of heat during combustion, and thus serve to supplement the calorific value of the fuel composition.

The palm may use coco palm, date palm, nipa palm, etc., but is not limited thereto.

The coconut shell may be added in a pulverized form, or may be added in the form of carbide or powdered carbide.

When the coconut shell is added as powdered carbide, a binder may be mixed for bonding strength.

The coconut shell may contain 10 to 100 parts by weight based on 100 parts by weight of fecal soil in Dongae, etc., preferably 15 to 60 parts by weight, more preferably 20 to 40 parts by weight, most preferably 25 to 35 parts by weight Can be included.

In addition, the composition for fuel according to the present invention comprises wood waste.

The wood waste may be any one or more selected from the group consisting of sawdust, wood chips, pulp chips, and forest by-products, but is not limited thereto.

The wood waste may be treated to facilitate combustion in the form of pulverized or crushed material, and preferably may be in a form selected from the group including powder, sawdust, wood chips, planer, splinter, chipping, shaving, or cutting. .

The wood waste may include 10 to 50 parts by weight based on 100 parts by weight of fecal soil in Dongae, etc., preferably 15 to 45 parts by weight, more preferably 20 to 40 parts by weight, most preferably 25 to 35 parts by weight. I can.

In addition, the composition for fuel according to the present invention includes sesame.

The oil cake refers to the remaining oil from plant seeds, sesame seed meal, perilla seed meal, soybean meal, corn meal, rapeseed meal, rice bran meal, cotton seed meal, flax meal, grape seed meal, olive seed meal, coffee It may be any one selected from the group consisting of gourd and sunflower seed meal, preferably sesame seed meal, perilla seed meal, coffee meal, or a mixture thereof.

The coconut shell is a problem due to the generation of soot (tar) during combustion, but the sesame oil can adsorb aromatic compounds present in the tar, thereby preventing the generation of smoke from the fuel composition and implementing a more environmentally friendly fuel. . In addition, the sesame is an environmentally friendly material that can supplement the calorific value and can be added in a pulverized form.

In general, when milking sesame seeds, about 42 to 45% of the weight is produced as sesame oil, and in the case of perilla seeds, about 40% of the weight is produced as perilla oil. Sesame seeds and perilla seeds that occur after milking have 10 to 15% oil (fat) remaining. In addition, the moisture content is lower than 0.5%, so there is no perishability.

For this purpose, the coconut shell and the sesame may be mixed in a weight ratio of 1: 0.1 to 1, preferably 1: 0.2 to 0.9, more preferably 1: 0.3 to 0.8, most preferably 1: 0.4 to It can be mixed in a weight ratio of 0.6.

The sesame seed meal and coffee meal may be mixed in a weight ratio of 1: 0.5 to 2, preferably 1: 0.6 to 1.8, more preferably 1: 0.8 to 1.5, most preferably 1: 0.9 to 1.2 It can be mixed in a weight ratio of.

10 to 50 parts by weight may be included with respect to 100 parts by weight of fecal soil, preferably 15 to 40 parts by weight, more preferably 18 to 30 parts by weight, and most preferably 20 to 25 parts by weight in the sesame dongae etc. have.

In addition, the sesame seed and coffee meal may each contain 1 to 25 parts by weight, preferably 5 to 20 parts by weight, and most preferably 10 to 15 parts by weight, based on 100 parts by weight of fecal soil in Dongae, etc. .

The fuel composition may be molded to have a predetermined shape, and this may be made by a molding binder.

The molding binder may be starch, modified starch, dextrin, cellulose, modified cellulose, guar gum, polyvinyl alcohol, waste molasses or a mixture thereof, preferably starch, guar gum, or polyvinyl alcohol.

The molding binder may contain 1 to 30 parts by weight, preferably 5 to 25 parts by weight, more preferably 8 to 20 parts by weight, and most preferably 10 to 15 parts by weight, based on 100 parts by weight of fecal soil in Dongae, etc. And can be appropriately selected in consideration of molding strength and combustion efficiency.

The moisture content is reduced by the heat applied during the molding, and in consideration of thermal efficiency, the moisture content of the fuel composition after molding may be 1 to 15%, preferably 1 to 10%.

The fuel composition according to the present invention may additionally include fats and oils, and the fats and fats may be used as long as they are added to the solid fuel composition to aid combustion. Specifically, animal oils or vegetable oils may be used, animal oils and oils may be oils and oils such as Dongae, and vegetable oils and oils may be palm oil, palm oil, or the like.

The fat or oil may be any one or more selected from the group consisting of oils and fats such as Dongae, palm oil, and palm oil, but is not limited thereto.

The maintenance of the Dongae et al. can be manufactured using Dongae et al. generated during the production of fecal soil in Dongae et al.

In particular, since the larvae of Dongae obtained after treatment of organic waste can be used as a raw material for oil and fat extraction, it is very economical.

The oils and fats in the copper ae etc. can be added to the fuel composition to ensure a certain heat generation performance, and when burning, it is possible to prepare a fuel composition that has no soot and hardly odors.

In addition, when the fuel composition is solidified in Dongae et al., it is possible to reduce the molding pressure by lubricating during the molding process, as well as to reduce defects in the solidified fuel composition and increase the density, thereby increasing durability and thermal efficiency.

The dongae deungae maintenance may include 1 to 20 parts by weight, preferably 5 to 10 parts by weight, based on 100 parts by weight of fecal soil in the dongae etc.

The fuel composition may be formed into pellets, chips, or powder.

The fuel composition may be solid fuel for home use or solid fuel for thermal power plants.

In addition, the present invention comprises a step of producing fecal soil in Dongae and the like to produce fecal soil by treating organic wastes in Dongae and the like;

Drying the fecal soil on the Dongae etc. to prepare the fecal soil on the dried Dongae etc. having a moisture content of 1 to 20%;

Preparing a mixture of fecal soil in the dried Dongae, etc. by adding coconut shells, wood waste and sesame to the fecal soil; And

It provides a method for producing a fuel composition comprising the step of molding a fecal soil mixture in the Dongae et al.

The step of producing fecal soil in Dongae et al. may be performed by adding eggs, larvae or mixtures thereof to Dongae et al. to organic waste, and breeding the Dongae et al. to obtain feces soil.

The population of Dongae et al. added to the organic waste may be 100 to 1,000 heads based on 1 kg of organic waste, and breeding of the Dongae et al. may be carried out for 3 to 14 days at a temperature of 30°C to 42°C.

The manufacturing method of the fuel composition may further include the step of separating Dongae et al. from the fecal soil after the fecal soil manufacturing step.

The step of preparing fecal soil in the dried Dongae etc. may be performed by drying the fecal soil in Dongae etc. at a temperature of 150 to 300°C for 1 to 30 minutes, and preferably at a temperature of 150 to 300°C for 1 to 20 minutes It may be carried out by drying, more preferably it may be carried out by drying for 1 to 10 minutes at a temperature of 150 to 300 ℃.

In the step of mixing coconut shells, wood wastes, and sesame seeds in fecal soil in the dried Dongae, etc., the mixed coconut shells may be pulverized coconut shells.

The step of molding the mixture may be performed by additionally adding a molding binder to the dried copper ae and the like to have the fecal soil mixture have a predetermined shape.

The fuel composition may be formed into a pellet, chip, or powder form, and preferably may be formed into a pellet form.

The moisture content is reduced by the heat applied during the molding, and in consideration of thermal efficiency, the moisture content of the fuel composition after molding may be 1 to 15%, preferably 1 to 10%.

For the molding, a circular die-type pellet molding machine, a flat die-type pellet molding machine, and other conventional extrusion molding machines that can be used for pellet manufacturing may be used.

The above description is merely illustrative of the technical idea of the present invention, and those of ordinary skill in the art to which the present invention pertains will be able to make various modifications and variations without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain the technical idea, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

Hereinafter, the present invention will be described in more detail through examples. These examples are only for describing the present invention in more detail, and it will be apparent to those of ordinary skill in the art that the scope of the present invention is not limited by these examples according to the gist of the present invention. .

Production Example 1: Production of larvae to Dongae et al.

Adult worms were added to the Dongae and other spawning sites at a density of 8,000 to 12,000 (cm ³ / head). After 3 days have elapsed since adult insects were added to Dongae, etc. to the spawning grounds in Dongae, etc., an attractant medium with a humidity of 20% mixed with food waste and sawdust at 3:1 was added to the spawning sites in Dongae, etc., and a 3 to 5 mm hole in the wood. The spawning induction device pierced was put on the inducing medium.

After the egg masses were scattered in the hole of the spawning induction device, the egg masses were collected, and the light conditions were maintained at 14L:10D for 4 days, and the larvae were obtained by hatching by protecting the temperature at 27℃ and 60% humidity.

Preparation Example 2: Preparation of fecal soil in Dongae, etc.

10 kg of food waste was prepared, 5000 larvae were added to the Dongae et al. obtained in Preparation Example 1, and the larvae were reared on the Dongae et al. for 3 days while maintaining the temperature at 30°C. During breeding, 3 kg of fecal soil was obtained from the excreted Dongae after the larvae ingested and digested food waste on Dongae, etc.

The obtained fecal soil was subjected to a temperature of 43° C., and the larvae of Dongae et al. were made to crawl out of the fecal soil on Dongae et al., which the larvae excreted on the Dongae et al., to separate the Dongae et al.

The fecal soil from which the Dongae et al. was separated was dried with dry air at a temperature of 250° C. for 5 minutes, thereby obtaining fecal soil on the dried Dongae et al. having a moisture content of 11%.

Example 1: Preparation of fecal soil fuel pellets in Dongae et al.

First, the peel of the palm fruit was pulverized into 100 mesh using a compression grinder.

Dongae et al. were mixed with 100 parts by weight of fecal soil, 40 parts by weight of coconut peel, 30 parts by weight of wood waste, 10 parts by weight of sesame seed, 10 parts by weight of coffee meal, and 10 parts by weight of guar gum, and put into a flat die type pellet molding machine. While maintaining the temperature and molding pressure of the molding machine at about 85° C. and about 4,500 kgf/cm ² , pellets having a diameter of about 8 mm and a length of about 30 mm were prepared.

Example 2: Preparation of fecal soil fuel pellets in Dongae, including oils and fats in Dongae, etc.

In Example 1, a pellet was prepared in the same manner as in Example 1, except that 5 parts by weight of oil and fat were added to the larvae on Dongae etc. after drying and heating.

Experimental Example 1: Measurement of calorific value of fuel pellets

As for the calorific value of the prepared pellets, 0.5 g of a dried sample was placed in a calorimeter (Parr 6 calorimeter), filled with oxygen, and ignited to calculate the calorific value from temperature changes before and after combustion.

The results are shown in Table 1 below.

Fuel pellets Caloric value (kcal/kg) Example 1 4,320 Example 2 4,510

As shown in Table 1, the fuel pellets according to the present invention exhibited a high calorific value exceeding the first grade, which is the quality standard of wood pellets notified by the National Institute of Forest Science.

In addition, it was confirmed with the naked eye that the soot generated during the heating process was significantly reduced compared to the generally commercialized wood pellets.

Experimental Example 2: Measurement of ash content of fuel pellets

As for the ash content of the prepared pellets, a combustion test of 1 g of a sample was carried out in a furnace (Furnace) by a heating schedule (60 minutes at 250°C, 120 minutes at 575°C) determined in the test method specified in the quality standard of the wood pellets. After that, the weight of the residue was measured.

The results are shown in Table 2 below.

Fuel pellets Ash content (%) Example 1 0.32 Example 2 0.33

As shown in Table 2, it was confirmed that the ash content was less than 0.7% of grade 1, which is the quality standard of the wood pellets noticed by the National Institute of Forest Science.

Experimental Example 3: Measurement of moisture content of fuel pellets

In order to measure the moisture content of the prepared pellets, the weighing bottle with a cover was dried at 105±3° C. and then cooled to room temperature in a desiccator. 20 g of the prepared pellets were put in a uniform layer in a weighing bottle and the weight was measured including a cover. Thereafter, the cover was removed and dried at a temperature of 105 ± 3°C until the weight of the dish containing the sample did not change, and then the cover was covered in an oven and cooled to room temperature in a desiccator. The moisture content was measured through this process, and it is shown in Table 3 below.

Fuel pellets Moisture content (%) Example 1 8.6 Example 2 8.8

As shown in Table 3, it was confirmed that the moisture content was less than 10% of the first grade, which is the quality standard of wood pellets notified by the National Institute of Forest Science.

Claims (7)

For 100 parts by weight of fecal soil in Dongae, etc.,
A fuel composition comprising 10 to 100 parts by weight of coconut shells, 10 to 50 parts by weight of wood waste, 10 to 50 parts by weight of sesame seeds, and 1 to 30 parts by weight of a molding binder.
The method of claim 1,
The fuel composition, characterized in that the Dongae-deunge fecal soil is obtained by removing the Dongae-deung-e from the product obtained while the Dongae-deung-e treats organic waste.
The method of claim 1,
The fuel composition, characterized in that the moisture content of the fecal soil in Dongae and the like is 1 to 20%.
The method of claim 1,
The sesame seed meal, perilla seed meal, soybean meal, corn meal, rapeseed meal, rice bran meal, cotton seed meal, flax seed meal, grape seed meal, olive seed meal, coffee meal and sunflower seed meal, characterized in that any one selected from the group consisting of Fuel composition.
The method of claim 1,
The fuel composition, characterized in that mixed in a weight ratio of the coconut shell and sesame 1: 0.1 ~ 1.
The method of claim 1,
The fuel composition, characterized in that the sesame seed meal and coffee meal 1: 0.5 to 2 are mixed in a weight ratio.
The method of claim 1,
The molding binder is a fuel composition, characterized in that starch, modified starch, dextrin, cellulose, modified cellulose, guar gum, polyvinyl alcohol, waste molasses, or a mixture thereof.