KR20210057295A - The production method of activated carbon utilizing the botanical raw materials - Google Patents

The production method of activated carbon utilizing the botanical raw materials Download PDF

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KR20210057295A
KR20210057295A KR1020190143890A KR20190143890A KR20210057295A KR 20210057295 A KR20210057295 A KR 20210057295A KR 1020190143890 A KR1020190143890 A KR 1020190143890A KR 20190143890 A KR20190143890 A KR 20190143890A KR 20210057295 A KR20210057295 A KR 20210057295A
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activated carbon
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성동민
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(주)포스코케미칼
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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/30—Active carbon
    • C01B32/312—Preparation
    • C01B32/318—Preparation characterised by the starting materials
    • C01B32/324—Preparation characterised by the starting materials from waste materials, e.g. tyres or spent sulfite pulp liquor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/3078—Thermal treatment, e.g. calcining or pyrolizing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/3085—Chemical treatments not covered by groups B01J20/3007 - B01J20/3078
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/30—Active carbon
    • C01B32/306—Active carbon with molecular sieve properties
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/30—Active carbon
    • C01B32/312—Preparation
    • C01B32/336—Preparation characterised by gaseous activating agents

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
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Abstract

Provided is a method for manufacturing activated carbon using plant-based raw materials. The method for manufacturing activated carbon of the present invention comprises the following steps of: manufacturing raw material powder by pulverizing at least one of rice bran, malt waste, and silver grass to an average particle size of 5 to 1000 μm based on D50; carbonizing the pulverized raw material powder at a temperature of 300 to 700°C for 1 minute to 10 hours; and activating the carbonized raw material powder at a temperature of 500 to 950°C for 30 minutes to 6 hours in a state in which excess heat steam, carbon dioxide or air of a temperature of 150 to 700°C is injected to manufacture the activated carbon.

Description

식물계 원료를 활용한 활성탄소 제조 방법{The production method of activated carbon utilizing the botanical raw materials}The production method of activated carbon utilizing the botanical raw materials}

본 발명은 식물계 원료인 미강, 맥아 찌꺼기, 억새풀을 활용하여 메조 기공이 우수하게 발달한 활성탄소를 제조할 수 있는 방법에 관한 것이다.The present invention relates to a method for producing activated carbon having excellent mesopores by using rice bran, malt debris, and silver grass, which are plant-based raw materials.

탄소 소재 중 활성 탄소는 특유의 흡착성으로 인하여 일상생활에서 산업용까지 폭넓게 사용되고 있다. 기존의 활성탄소 제조 원료는 야자각, 석탄, 코크스, 핏치 등이 있었다. 이 원료를 사용하면 마이크로 기공이 발달한 활성탄소를 주로 제조할 수 있었다. 하지만 마이크로 기공이 많이 발달한 활성탄소는 흡착량이 우수하고 비표면적이 큰 장점이 있지만, 비교적 분자량이 큰 유해가스 흡착 성능은 낮다고 알려져 있다. 마이크로 기공보다 메조 기공이 우세한 활성탄소를 제조하면 분자량이 큰 유해가스를 효율적으로 흡착할 수 있다.Among carbon materials, activated carbon is widely used from everyday life to industrial use due to its unique adsorption property. Existing raw materials for producing activated carbon included palm kernel, coal, coke, and pitch. Using this raw material, activated carbon with developed micropores could be mainly produced. However, activated carbon with a large number of micropores has an advantage of excellent adsorption and a large specific surface area, but it is known that the adsorption performance of harmful gases having a relatively large molecular weight is low. When the activated carbon with mesopores dominated over micropores is produced, harmful gases having a large molecular weight can be efficiently adsorbed.

그런데 국내의 활성 탄소는 원료와 제품 전량 수입에 의존하고 있으며 원료의 수급성도 안전하지 않다. 따라서 활성 탄소 제조시 원료에 대하여 외부 의존도를 낮출 수 있고 원가를 낮출 수 있는 새로운 활성 탄소 제조공정 개발에 요구가 지속되어 오고 있는 실정이다. However, domestic activated carbon depends on imports of all raw materials and products, and the supply and demand of raw materials is not safe. Therefore, there is a continuing demand for the development of a new activated carbon manufacturing process that can lower the external dependence on raw materials when manufacturing activated carbon and lower the cost.

본 발명은 메조기공이 크고, 흡착성이 좋아 유해가스 제거효율이 높은 식물계 원료을 이용한 활성탄소의 제조방법을 제공함에 그 목적이 있다An object of the present invention is to provide a method for producing activated carbon using a plant-based raw material having large mesopores, good adsorption, and high toxic gas removal efficiency.

또한 본 발명에서 이루고자 하는 기술적 과제들은 이상에서 언급한 기술적 과제들에 한정되지 않으며, 언급하지 않은 또 다른 기술적 과제들은 아래의 기재로부터 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 명확하게 이해될 수 있을 것이다.In addition, the technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems that are not mentioned are clearly understood by those of ordinary skill in the technical field to which the present invention belongs from the following description. It will be possible.

상기 목적을 달성하기 위하여 본 발명은, In order to achieve the above object, the present invention,

미강, 맥아찌꺼기 및 억새풀 중 1종 이상을 D50 기준 5~1000㎛의 평균 입도로 분쇄하여 원료분말을 제조하는 공정; Pulverizing at least one of rice bran, malt debris, and silver grass to an average particle size of 5 to 1000 μm based on D50 to prepare a raw material powder;

상기 분쇄된 원료분말을 300℃ 내지 700℃ 온도에서 1분 내지 10시간 동안 탄화하는 공정; 및 Carbonizing the pulverized raw material powder at a temperature of 300° C. to 700° C. for 1 minute to 10 hours; And

상기 탄화된 원료 분말을 150℃ 내지 700℃의 온도의 초과열 수증기, 이산화 탄소, 또는 공기가 주입되는 상태에서 500℃ 내지 950℃의 온도에서 30분 내지 6시간 동안 활성화처리함으로써 활성 탄소를 제조하는 공정을 포함하는 식물계 원료를 이용한 활성탄소의 제조방법에 관한 것이다. Activated carbon is prepared by activating the carbonized raw material powder at a temperature of 500° C. to 950° C. for 30 minutes to 6 hours in a state in which excess heat steam, carbon dioxide, or air at a temperature of 150° C. to 700° C. is injected. It relates to a method for producing activated carbon using plant-based raw materials including the process.

상기 활성탄소는 메조, 매크로 기공이 발달한 다공성 소재로서 다이옥신 및 부탄 제거에 활용될 수 있다. The activated carbon is a porous material with developed meso and macro pores and may be used to remove dioxin and butane.

상술한 구성의 본 발명에 따르면, 메조기공이 발달한 활성탄소를 형성하여 부탄, 다이옥신과 같은 유해가스 흡착에 효과적으로 이용할 수 있는 유리한 효과가 있다. According to the present invention having the above-described configuration, there is an advantageous effect that can be effectively used for adsorption of harmful gases such as butane and dioxin by forming activated carbon with developed mesopores.

이하, 본 발명을 상세히 설명한다.Hereinafter, the present invention will be described in detail.

본 발명은 미강, 맥아 찌꺼기, 억새풀을 원료로 이용하여 조립형 내지 분말 활성탄소를 제조하는 방법을 제공함을 특징으로 하며, 이렇게 제조된 활성탄소는 다이옥신, 부탄 등의 유해가스 제거용으로 활용될 수 있다.The present invention is characterized in that it provides a method for producing granulated or powdered activated carbon using rice bran, malt residue, and silver grass as raw materials, and the activated carbon thus prepared can be used for removing harmful gases such as dioxin and butane. have.

즉, 본 발명의 억새를 이용한 활성탄소 제조방법은, 미강, 맥아찌꺼기 및 억새풀 중 1종 이상을 D50 기준 5~1000㎛의 평균 입도로 분쇄하여 원료분말을 제조하는 공정; 상기 분쇄된 원료분말을 300℃ 내지 700℃ 온도에서 1분 내지 10시간 동안 탄화하는 공정; 및 상기 탄화된 원료 분말을 150℃ 내지 700℃의 온도의 초과열 수증기, 이산화 탄소, 또는 공기가 주입되는 상태에서 500℃ 내지 950℃의 온도에서 30분 내지 6시간 동안 활성화처리함으로써 활성 탄소를 제조하는 공정;을 포함한다.That is, the method for producing activated carbon using silver grass of the present invention comprises a process of pulverizing at least one of rice bran, malt and silver grass to an average particle size of 5 to 1000 μm based on D50 to prepare a raw material powder; Carbonizing the pulverized raw material powder at a temperature of 300° C. to 700° C. for 1 minute to 10 hours; And activation of the carbonized raw material powder at a temperature of 500° C. to 950° C. for 30 minutes to 6 hours in a state in which excess heat steam, carbon dioxide, or air at a temperature of 150° C. to 700° C. is injected to produce activated carbon. The process of doing; includes.

[식물계 원료를 파쇄하는 공정][Process of crushing plant-based raw materials]

본 발명에서 활성 탄소의 원료로 이용하는 맥주 제조 과정에서 발생하는 맥아 찌꺼기, 벼에서 왕겨를 뽑고 난 다음 현미를 백미로 도정하는 공정에서 분리되는 속겨, 한국 전 지역 산과 들에서 발생하는 억새풀로서, 이들의 구체적인 종류에 제한되는 것은 아니다. Malt debris generated in the process of manufacturing beer used as a raw material for activated carbon in the present invention, trichome separated in the process of grinding brown rice into white rice after extracting rice husk from rice, and silver grass that occurs in all regions of Korea. It is not limited to specific types.

본 발명에서는 미강, 맥아찌꺼기 및 억새풀 중 1종 이상을 분쇄하여 원료분말을 제조한다. In the present invention, a raw material powder is prepared by grinding at least one of rice bran, malt debris and silver grass.

바람직하게는, 상기 식물계 원료를 평균 입도가 D50 기준 5~1000㎛ 범위를 만족하도록 미분쇄하는 것이다. 만일 상기 평균입도가 5㎛ 미만이면 분진이 많이 발생하고 비표면적을 형성하는 과정에서 수율이 낮아지는 문제가 있으며, 1000㎛를 초과하면 비표면적이 잘 형성되지 않는 문제가 있다. Preferably, the plant-based raw material is pulverized so that the average particle size satisfies the D50 range of 5 to 1000 μm. If the average particle size is less than 5 μm, there is a problem that a lot of dust is generated and the yield is lowered in the process of forming the specific surface area. If the average particle size exceeds 1000 μm, there is a problem that the specific surface area is not well formed.

파쇄는 조분쇄기와 미분쇄기를 활용하였다. The crushing was performed using a coarse pulverizer and a fine pulverizer.

[파쇄된 원료분말을 탄화하는 공정] [Process of carbonizing crushed raw material powder]

다음으로, 본 발명에서는 상기 미분쇄된 원료 분말을 탄화시킨다. Next, in the present invention, the pulverized raw material powder is carbonized.

구체적으로, 미분쇄된 원료 분말을 질소 기체와 같은 불활성 분위기에서 300℃ 내지 700℃ 온도에서 1분 내지 10시간 동안 열처리 하여 탄화시킨다.Specifically, the pulverized raw material powder is carbonized by heat treatment at a temperature of 300° C. to 700° C. for 1 minute to 10 hours in an inert atmosphere such as nitrogen gas.

이때 300℃ 미만의 온도에서는 휘발 성분이 충분히 제거되지 않아 추후 활성화 공정에서 추가적인 휘발성분의 분해가 일어나 활성화가 충분히 이루어지지 않을 수 있다. 그리고 700℃를 초과하는 온도에서는 억새의 휘발분의 분해가 많이 이루어져서 탄화 수율이 낮아질 수 있다. 따라서 본 발명에서 상기 탄화공정은 300℃ 내지 700℃ 온도에서 1분 내지 10시간 동안 진행하는 것이 바람직하다.In this case, at a temperature of less than 300°C, the volatile components are not sufficiently removed, and thus additional volatile components may be decomposed in a later activation process, and thus activation may not be sufficiently performed. In addition, at a temperature exceeding 700°C, the volatile components of silver grass are decomposed a lot, and the carbonization yield may be lowered. Therefore, in the present invention, the carbonization process is preferably performed at a temperature of 300° C. to 700° C. for 1 minute to 10 hours.

[탄화된 원료분말을 활성화하는 공정][Process to activate carbonized raw material powder]

이어, 본 발명에서는 상기 탄화된 원료 분말을 150℃ 내지 700℃의 온도의 초과열 수증기, 이산화 탄소, 또는 공기가 주입되는 상태에서 500℃ 내지 950℃의 온도에서 30분 내지 6시간 동안 활성화처리함으로써 활성 탄소를 제조하다. Subsequently, in the present invention, the carbonized raw material powder is activated for 30 minutes to 6 hours at a temperature of 500° C. to 950° C. in a state in which excess heat steam at a temperature of 150° C. to 700° C., carbon dioxide, or air is injected. Make activated carbon

즉, 상기 탄화된 원료 분말과 활성화제가 만나 반응하여 침식/산화반응을 통해 기공이 형성되어 활성탄소가 제조될 수 있다. That is, the carbonized raw material powder and the activator meet and react to form pores through an erosion/oxidation reaction, thereby producing activated carbon.

이때, 본 발명에서는 상기 탄화된 원료분말이 150℃ 내지 700℃의 온도의 초과열 수증기, 이산화탄소, 공기 등이 주입되는 상태에서 500℃ 내지 950℃의 온도에서 30분 내지 6시간동안 열처리 하여 활성화처리됨이 바람직하다. 만일 초과열 수증기를 사용하지 않을 시엔 식물계 원료는 고정탄소 함량이 낮아 탄화, 활성화 과정을 거치면서 수율이 매우 낮아 지게 되는데, 초과열 수증기를 사용하면 활성탄소 제조 시 수율을 높일 수 있는 장점이 있다. At this time, in the present invention, the carbonized raw material powder is activated by heat treatment at a temperature of 500° C. to 950° C. for 30 minutes to 6 hours in a state in which excess heat steam, carbon dioxide, and air at a temperature of 150° C. to 700° C. are injected. This is desirable. If the excess heat steam is not used, the plant-based raw material has a low fixed carbon content, so the yield is very low as it undergoes carbonization and activation processes.If the excess heat steam is used, there is an advantage that the yield can be increased during the production of activated carbon.

만일 상기 활성화 열처리온도가 500℃ 미만이면 세공을 형성시키지 않아 비표면적이 낮게 되며 950℃를 초과하면 산화 반응으로 인해 활성탄소가 모두 전소된다. If the activation heat treatment temperature is less than 500°C, pores are not formed and the specific surface area is low. If it exceeds 950°C, all activated carbons are burned out due to oxidation.

그리고 상기 활성화 열처리 시간은 30분 내지 6 시간 정도가 바람직한데, 활성화 시간이 과소하면 비표면적이 잘 형성되지 않으며 과다하면 산화 반응으로 인해 또한 모두 전소된다. In addition, the activation heat treatment time is preferably about 30 minutes to 6 hours. If the activation time is insufficient, the specific surface area is not well formed, and if the activation time is excessive, all of them are burned out due to the oxidation reaction.

이하, 실시예를 통하여 본 발명을 상세히 설명한다.Hereinafter, the present invention will be described in detail through examples.

(실시예) (Example)

백미 도공공정에서 발생하는 미강, 수제 맥주를 제조할 때 발생하는 맥아 찌꺼기를 수급한 후 건조하였다. 억새는 국내에서 자생하는 것을 수급하여 드라이 오븐에 건조하였다. 그리고 건조된 각각의 상기 원료를 조분쇄기 및 미분쇄기를 통하여 분쇄하여 그 평균 입도가 D50 기준 5~1000㎛ 범위를 만족하는 분말을 마련하였다. Rice bran generated in the white rice coating process and malt residues generated in the production of craft beer were received and dried, and then dried. Silver grass was supplied from domestically grown and dried in a dry oven. Then, each of the dried raw materials was pulverized through a coarse pulverizer and a fine pulverizer to prepare a powder having an average particle size of 5 to 1000 µm based on D50.

이어, 상기 마련된 억새분말을 1시간 동안 질소 분위기에서 탄화시켰으며, 이후, 탄화된 분말을 850℃의 온도에서 과열 수증기에 접촉시켜 할성화열처리함으로서 활성탄소를 제조하였다. 이때, 구체적인 탄화조건 및 활성화 열처리조건은 하기 표 1과 같다. Subsequently, the prepared silver grass powder was carbonized in a nitrogen atmosphere for 1 hour, and thereafter, activated carbon was prepared by contacting the carbonized powder with superheated steam at a temperature of 850° C. to treat the activated carbon. At this time, specific carbonization conditions and activation heat treatment conditions are shown in Table 1 below.

구분division 원료의
종류Of raw material
Kinds 탄화온도
(℃)Carbonization temperature
(℃) 활성화 온도(℃)Activation temperature (℃) 수증기온도(℃)Water vapor temperature (℃) 활성화 시간(hr)Activation time (hr) 비표면적
(m2/g)Specific surface area
(m 2 /g) 평균
세공크기(nm)Average
Pore size (nm) 수율(%)yield(%) 발명예 1Invention Example 1 미강Rice bran 500500 850850 230(과열)230 (overheating) 44 764764 2.33972.3397 3535 발명예 2Invention Example 2 맥아찌꺼기Malt 500500 850850 235(과열)235 (overheating) 44 988988 2.81552.8155 3030 발명예 3Inventive Example 3 억새풀Silver grass 500500 850850 230(과열)230 (overheating) 44 708708 3.59893.5989 1212 발명예4Invention Example 4 미강Rice bran 500500 850850 150150 44 762762 2.33902.3390 2020 비교예 1Comparative Example 1 미강Rice bran 500500 900900 110110 77 전소(산화)Burning (oxidation) 전소(산화)Burning (oxidation) -- 비교예 2Comparative Example 2 맥아찌꺼기Malt 500500 950950 110110 33 전소(산화)Burning (oxidation) 전소(산화)Burning (oxidation) -- 비교예3Comparative Example 3 미강Rice bran 350350 450450 110110 66 145145 -- --

상기 표 1에 나타난 바와 같이, 본 발명의 제조공정 조건을 이용하여 제조된 활성탄소의 경우, 모두 비표면적 및 평균 세공크기 측면에서 특성이 우수하여, 이를 부탄, 다이옥신과 같은 유해가스 흡착에 효과적으로 이용할 수 있음을 알 수 있다. As shown in Table 1, in the case of activated carbon prepared using the manufacturing process conditions of the present invention, all of the activated carbons have excellent characteristics in terms of specific surface area and average pore size, and this can be effectively used for adsorption of harmful gases such as butane and dioxin. You can see that there is.

이에 대하여, 비교예 1-2는 활성화처리온도 및/또는 시간이 본 발명의 범위를 벗어난 경우로서, 활성화처리온도 내지 시간이 과다한 비교예 1-2는 탄화분말이 산화에 따라 전소되었으며, 활성화 온도가 낮은 비교예 3은 제조된 활성탄소의 비표면적이 좋지 않음을 확인할 수 있다. On the other hand, Comparative Example 1-2 is a case where the activation treatment temperature and/or time is out of the scope of the present invention, and in Comparative Example 1-2 in which the activation treatment temperature and time are excessive, the carbonized powder was burned due to oxidation, and the activation temperature It can be seen that Comparative Example 3 has a low specific surface area of the prepared activated carbon.

이상에서 설명한 바와 같이, 본 발명의 상세한 설명에서는 본 발명의 바람직한 실시 예에 관하여 설명하였으나, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 본 발명의 범주에서 벗어나지 않는 한도 내에서 여러 가지 변형이 가능함은 물론이다. 따라서 본 발명의 권리 범위는 설명된 실시 예에 국한되어 정해져서는 안 되며, 후술하는 청구범위뿐만 아니라, 이와 균등한 것들에 의해 정해져야 한다.As described above, in the detailed description of the present invention, preferred embodiments of the present invention have been described, but those of ordinary skill in the art to which the present invention pertains, various modifications within the limit not departing from the scope of the present invention. Of course this is possible. Therefore, the scope of the present invention is limited to the described embodiments and should not be determined, and should not be determined by the claims to be described later, as well as those equivalent thereto.

Claims (2)

미강, 맥아찌꺼기 및 억새풀 중 1종 이상을 D50 기준 5~1000㎛의 평균 입도로 분쇄하여 원료분말을 제조하는 공정;
상기 분쇄된 원료분말을 300℃ 내지 700℃ 온도에서 1분 내지 10시간 동안 탄화하는 공정; 및
상기 탄화된 원료 분말을 150℃ 내지 700℃의 온도의 초과열 수증기, 이산화 탄소, 또는 공기가 주입되는 상태에서 500℃ 내지 950℃의 온도에서 30분 내지 6시간 동안 활성화처리함으로써 활성 탄소를 제조하는 공정을 포함하는 식물계 원료를 이용한 활성탄소의 제조방법.
Pulverizing one or more of rice bran, malt debris and silver grass to an average particle size of 5 to 1000 μm based on D50 to prepare a raw material powder;
Carbonizing the pulverized raw material powder at a temperature of 300° C. to 700° C. for 1 minute to 10 hours; And
Activated carbon is prepared by activating the carbonized raw material powder at a temperature of 500° C. to 950° C. for 30 minutes to 6 hours in a state in which excess heat steam, carbon dioxide, or air at a temperature of 150° C. to 700° C. is injected. A method for producing activated carbon using plant-based raw materials including a process.
 제 1항에 있어서, 상기 활성탄소는 메조, 매크로 기공이 발달한 다공성 소재로서 다이옥신 및 부탄 제거에 이용되는 것을 특징으로 하는 식물계 원료를 이용한 활성탄소의 제조방법.
The method of claim 1, wherein the activated carbon is a porous material with developed meso and macro pores and is used to remove dioxin and butane.
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