KR101655917B1 - Fuel Pellet Comprising Coffee Parchment - Google Patents

Abstract

The purpose of the present invention is to provide a method for producing fuel pellets which have high economic feasibility and eco-friendliness, by recycling disused coffee parchment. To this end, the fuel pellets include and use the coffee parchment, thereby making it possible to produce fuel pellets with excellent economic feasibility while having a certain level of calories.

Description

Fuel Pellet Comprising Coffee Parchment < RTI ID = 0.0 >

The present invention relates to a fuel pellet comprising a coffee ground, and more particularly to a fuel pellet made by recycling an abandoned coffee pellet.

Generally, as shown in Fig. 1 and Fig. 2, the coffee is generally composed of an outer skin 1, a mucus 2, a parchment 3 and a green bean 5 in this order. Ripe coffee cherry is obtained through natural processing or washed processing, and then roasted and used as whole bean.

At this time, the natural process is to dry the harvested coffee cherry as it is and then to hull it to obtain green beans. In the wash process, the outer shell is removed through pulping process after harvesting the coffee cherry, The pectin layer (mucilage) is completely removed with water, dried with the parchment attached, and then hulled into the pouch to make a green bean.

In addition to the above-mentioned processing methods, there are many processing processes such as a pulped natural process and the like in which the outer shell is peeled off and dried in a parchment state.

As shown in FIG. 3, the coffee grounds generated in the process of obtaining green beans are ivory or pale yellow, and include components such as protein, fat, and carbohydrate. Even though they occupy about 10% And it is abandoned in the form of incineration or landfill, so that air pollution is caused or the soil is not easily decayed.

However, the technology to recycle the above-mentioned trays has not been developed at all. However, only the technology of recycling coffee by-products (waste) from the beans by extracting coffee from the beans with the recycling technology related to coffee is disclosed in Korea Patent Publication No. 10-2009-0085382, Korean Patent No. 10-1315522, Korean Patent No. 10-1033212, and the like.

Therefore, it is necessary to develop the technology to utilize the abandoned parchment in the process of obtaining the bean.

The object of the present invention is to provide a fuel pellet and a briquettes which are economical and environmentally advantageous by recycling discarded coffee pellets and a manufacturing method thereof.

In order to achieve the above-mentioned object, the present invention is characterized in that it is characterized in that the coffee pellet and the briquettes each contain a coffee parachute, and the coffee pellet has a moisture content of 30% or less and an average particle diameter of 5 mm or less do.

In order to solve this problem, the coffee pellets and the briquettes may contain coffee pellets, water, starch, lignin, or ocher in addition to the coffee pellets in order to solve the coagulability and fluidity between the coffee pellets due to low fat and lignin content. One or more mixtures are added.

Another aspect of the present invention is a method for manufacturing fuel pellets and briquettes comprising a coffee parachment comprising the steps of: removing outer shells of a coffee cherry; A primary drying step of drying the outer skin-removed coffee; A separating step of separating the trays from the coffee having undergone the primary drying step; A pressing step of pressing the parchment obtained through the parchment separation step; And a fuel pellet or a briquette obtaining step of obtaining a fuel pellet or a briquetting by shaping the filament which has passed through the pressing step into a predetermined pellet or briquetting shape.

The method may further include a grinding step of grinding the separated parchment to a particle size of 5 millimeters (mm) or less before the pressing step after the parchment separation step.

Further, the method may further include a second drying step of drying the pulp so that the water content of the pulp is less than 30% after the pulverization step and before the compacting step.

Before the pressing step, 0.5 to 5% (by weight) of any one or two or more selected from moisture, starch, lignin or loess is added to the separated trays to increase the fluidity Further comprising an increasing step.

Further, the method may further include a cohesiveness increasing step of adding 0.5 to 5 percent (%) of an adhesive component to the separated pachment after the pachment separating step and before the pressing step, thereby enhancing cohesion between the pachments.

If both the fluidity increasing material and the adhesive component are added in the above, the total added amount is 1 to 5% of the total weight.

According to the present invention configured as described above, coffee waste can be recycled from the coffee cherry during the production of green beans, and is used as a solid refuse fuel for bio energy, In addition to the environmental pollution, it is possible to replace the fuel used for thermal power generation worldwide in recent years, thereby preventing environmental pollution caused by thermal power generation and the like.

In addition, there is an effect that the environmental hormone is not detected because the coffee palatant, which is a natural ingredient, is made of fuel pellets or briquettes.

The effects of the present invention are not limited to the effects described above. Unless stated, the effects will be apparent to those skilled in the art from the description and the accompanying drawings.

Fig. 1 is a photograph showing an outer shell, a parchment and a green bean which are elements constituting a coffee cherry.
2 is a view showing an outer shell, a parchment and a green bean which are elements constituting a coffee cherry.
Fig. 3 is a photograph showing a coffee pot.
4 to 5 are tables showing components of a parachute used in a fuel pellet including a coffee parachute according to an embodiment of the present invention.
FIGS. 6 to 8 are flowcharts illustrating a method of manufacturing a fuel pellet including a coffee parachute according to an embodiment of the present invention.
FIG. 9 shows SRF and BIO SRF reference tables as criteria for judging the performance of the fuel pellets including the coffee traps according to the embodiment of the present invention.
10 is a photograph showing a fuel pellet produced through a method of manufacturing a fuel pellet including a coffee filament according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail to avoid obscuring the subject matter of the present invention. Omit it.

Throughout the specification, when an element is referred to as "including " an element, it is to be understood that the element may include other elements,

The present invention relates to fuel pellets and briquettes comprising coffee grounds, and components of the main component coffee grounds will be described with reference to Figs. 3 to 4. Fig.

Figs. 4 and 5 are tables showing the components of a pachment used in a fuel pellet including a coffee pachment according to an embodiment of the present invention, wherein Fig. 4 is a pachment that has passed three years since its production, Fig. 5 Is a coffee parachute that has not passed its first year of production, and coffee pachment has a moisture content of 7.9-8.2g per 100g, fat 0.1-0.2g, protein 1.4-1.7g, ash 0.3-0.7g, carbohydrate 89.5-90g .

As described above, since the content of the lipid is small in the coffee pachment, the adhesiveness of the pachment and the fluidity in producing the pellet are low, resulting in a problem that the utilization rate of the pellet is low.

Accordingly, the present invention solves the above-mentioned problem of the productivity deterioration and makes it possible to utilize the parachment as fuel.

Hereinafter, a method of manufacturing a fuel pellet including a coffee parachute according to an embodiment of the present invention will be described with reference to Figs. 6 to 8. Fig.

[Example 1]

First, as shown in FIG. 6, the outer shell of the coffee cherry is removed (S110). Then, the coffee with the outer skin removed is dried first (S120). Here, the reason why the drying process is performed is to effectively remove the mucus surrounding the fresh bean while effectively removing the traces.

Meanwhile, the drying process may be performed by rinsing with water before removing the mucilage.

Then, the outer casing is removed and the outer casing of the dried coffee beans is separated by a mechanical or manual operation (S130).

Then, the parchment obtained in the above separation process is collected and pulverized to a predetermined size (S140). Here, the predetermined size may be 5 mm or less. This size is intended to increase the amount of heat generated while the fuel pellet is being produced during the subsequent process of transferring and pressing.

Then, the crushed coffee parchment is dried again (secondary drying) (S150). This process of re-drying the parchment is to control the moisture content in the parchment that is needed in the subsequent pressing process.

Preferably, the amount of water contained in the pouches is 10% to 30% or less of the total weight of the pouches. This is to ensure that there is no change in physical properties when hot pressed at a later time and to obtain fuel pellets of good quality.

Then, the parachment is squeezed (S160). Such a pressing process can be performed by preparing a predetermined mold frame in accordance with the size of the pellet to be manufactured and pushing the parcel into the mold frame at a high pressure.

Finally, the fuel pellets of a predetermined size are obtained after the compression process (S170).

[Example 2]

As shown in FIG. 7, the outer shell of the coffee cherry is removed (S110), the primary drying step (S120), and the separating step (S130) are performed in the same manner as the first embodiment.

Thereafter, without performing the pulverizing step (S140) and the second drying step (S150) of the first embodiment, in the process of transferring the pellets for pressing before the pressing for producing the fuel pellets after the separation step (S130) A step of increasing the fluidity of the fluid is performed (S145).

As shown in FIGS. 3 and 4, the reason why the fluidity increasing step is performed is to prevent the pachment from being easily pushed out from the mold frame during the molding process because the fat content is very low.

This fluidity increasing step (S145) adds 0.5 to 5% (preferably 1-2%) of the fluidity increasing material to the total weight, wherein the fluidity increasing material is water, starch, lignin or It is needless to say that any one selected from among loess or a mixture of two or more of them may be used, and other materials capable of achieving equivalent effects may be included.

After the separating step (S130), the cohesion increasing step for increasing the cohesion force between the trays is performed (S155) before the pressing to produce the fuel pellets.

This is because the coffee pachment contains 3. 21% of lignin, which plays an important role as an adhesive in the molding process, and is very low compared with 7.42% of apple trees. Therefore, the cohesiveness of the material is greatly lowered. (Such as gelatin) is added to the parachment in an amount of 0.5 to 5% (preferably 1-2%) based on the total weight, wherein the sum of the flowability-increasing substance and the adhesive component is 1-5% 2% or less).

Then, the parachment is squeezed (S160). Such a pressing process can be performed by preparing a predetermined mold frame and pushing the parcel at a high pressure toward the mold frame.

Finally, the fuel pellets of a predetermined size are obtained after the compression process (S170).

[Example 3]

As shown in Fig. 8, the outer shell of the coffee cherry is removed (S110), and the coffee having the outer shell removed is first dried (S120), and the filament is separated (S130).

Then, the parchment obtained in the separating step is pulverized (S140) to a size of 5 mm or less (preferably 1 mm or less), and then dried to a moisture content of 10% or less (S150).

Thereafter, a cohesion enhancing step is performed by adding 0.5 to 5% (preferably 1 to 2%) of an adhesive component such as gelatin to increase the cohesiveness of the coffee bean paste (S155) (S160).

In this pressing process, since the fluidity of the pallet is insufficient, the pellet is easily discharged by spraying water inside the mold frame.

The fuel pellets of a predetermined size are obtained through the compression process (S170).

[Example 4]

Molded in the same manner as in Example 1-3, except that the molded product was molded into a brittle type rather than a pellet.

The fuel pellets and the briquettes thus obtained must satisfy certain conditions in order to have value as BIO SRF (Solid Refuse Fuel), which will be described in detail below.

FIG. 9 shows an SRF reference table as a criterion for judging performance of a fuel pellet including a coffee parachute according to an embodiment of the present invention. The SRF reference table is based on the Act on the Promotion of Resource Conservation and Recycling (SRF) and BIO SRF (Bio Solid Refuse Fuel).

As can be seen from FIG. 9, the content of ashes in BIO SRF should be smaller than that of general SRF, and the content of heavy metals such as lead should be low.

As shown in FIG. 10, the fuel pellet including the coffee ground according to the embodiment of the present invention has a post combustion ash content of 5.4% which is 15% or less of the total weight and a water content of 5.9% which is 10% The low calorific value is also 4120 kcal / kg which exceeds the minimum standard of 3500 kcal / kg, and it is said that it corresponds to the BIO SRF fuel because there is almost no content of other heavy metals.

That is, the fuel pellets including the coffee parachute according to the embodiment of the present invention have a value as a fuel and an environmental advantage.

Finally, an actual view of the fuel pellet produced through the method of manufacturing a fuel pellet including a coffee parachute according to an embodiment of the present invention will be described below with reference to Fig.

11 is a photograph showing a fuel pellet produced through a method of manufacturing a fuel pellet including a coffee filament according to an embodiment of the present invention.

That is, as shown in FIG. 11, among the value measures as the fuel pellets, the degree of cohesion (whether there is no flaking) is important. As shown in FIG. 11, the fuel pellet including the coffee traps according to the embodiment of the present invention The fuel pellets produced according to the method have good cohesion and thus are highly valuable as fuel in terms of distribution and utilization of the fuel.

While the invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention.

1: outer shell
3: Pachment
5:

Claims (4)

In a coffee cherry composed of an outer skin 1, a mucus 2, a parchment 3 and a green bean 5, , A coffee finishing material having a moisture content of not more than 30% based on the total weight and having an average diameter of not more than 5 millimeters (mm)
Wherein the fuel pellet comprises a fluidity-increasing substance which is added in an amount of 0.5 to 5 percent (%) based on the total weight of the fuel pallet and is composed of water. delete delete The method according to claim 1,
Further comprising an adhesive component to enhance cohesion between the coffee traps.

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