KR100812948B1 - Removal method by absorption of oxygen compound gas in coke oven gas - Google Patents

Removal method by absorption of oxygen compound gas in coke oven gas Download PDF

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KR100812948B1
KR100812948B1 KR1020060085174A KR20060085174A KR100812948B1 KR 100812948 B1 KR100812948 B1 KR 100812948B1 KR 1020060085174 A KR1020060085174 A KR 1020060085174A KR 20060085174 A KR20060085174 A KR 20060085174A KR 100812948 B1 KR100812948 B1 KR 100812948B1
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gas
coke oven
oven gas
composition
carbon dioxide
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KR20080021933A (en
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이현
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주식회사 포스코
재단법인 포항산업과학연구원
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/1493—Selection of liquid materials for use as absorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
    • B01D2252/10—Inorganic absorbents
    • B01D2252/102—Ammonia
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/10—Single element gases other than halogens
    • B01D2257/104—Oxygen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/30—Sulfur compounds
    • B01D2257/302—Sulfur oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/50—Carbon oxides
    • B01D2257/504—Carbon dioxide
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/40—Capture or disposal of greenhouse gases of CO2

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  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
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Abstract

본 발명은 코크스 제조과정에서 발생하는 코크오븐가스(Coke oven gas) 중에 함유된 이산화탄소와 이산화황 및 산소 등의 산화가스를 제거하는 방법에 관한 것으로, 코크오븐가스의 발열량을 높이고 대기중에 방출되는 이산화황과 이산화탄소량을 감소시키기 위한 것이다.The present invention relates to a method for removing carbon dioxide and oxidizing gases such as sulfur dioxide and oxygen contained in coke oven gas generated during coke manufacturing process. This is to reduce the amount of carbon dioxide.

이를 위하여 본 발명은, 알킬디아민, 알킬트리아민을 일종 또는 2종 이상 혼합하여 산화가스 흡착제거용 조성물을 제조하는 단계와, 상기 조성된 산화가스 흡착제거용 조성물을 흡수탑에서 분사하는 동시에 상기 코크오븐가스를 흡수탑에 통과시켜 코크오븐가스와 상기 조성물이 접촉되도록 함으로서 상기 코크오븐가스 중의 산화가스를 제거하는 단계를 포함하는 코크오븐가스 중의 산화가스 제거방법을 제공하여, 코크오븐가스의 연속적인 정제공정에 적합할 뿐만 아니라 장기간 사용가능하며, 코크오븐가스의 발열량을 높이는 동시에 이산화황과 이산화탄소의 대기방출량을 감소시켜 대기오염 및 이산화탄소에 의한 지구 온난화의 방지에 기여할 수 있게 한다.To this end, the present invention is to prepare a composition for oxidizing gas adsorption removal by mixing one or two or more kinds of alkyldiamine, alkyltriamine, and spraying the composition of the oxidized gas adsorption removal composition in the absorption tower at the same time Providing a method for removing oxidized gas in the coke oven gas, comprising the step of removing the oxidized gas in the coke oven gas by passing the oven gas through the absorption tower to contact the coke oven gas and the composition. Not only suitable for the refining process, but also can be used for a long time, it can increase the calorific value of the coke oven gas and at the same time reduce the atmospheric emissions of sulfur dioxide and carbon dioxide to contribute to the prevention of global warming by air pollution and carbon dioxide.

코크스, 코크오븐가스, 산화가스, 흡착, 제거 Coke, coke oven gas, oxidizing gas, adsorption, removal

Description

코크오븐가스에 함유된 산화가스의 흡착제거 방법{Removal method by absorption of oxygen compound gas in coke oven gas}Removal method by absorption of oxygen compound gas in coke oven gas}

도 1은 일반적인 코크오븐가스 정제장치의 개략도 1 is a schematic view of a typical coke oven gas purification device

도 2는 산화가스 흡착제거용 조성물의 발명예에 따른 산화가스 흡착 제거율을 나타낸 그래프 2 is a graph showing the oxidization gas adsorption removal rate according to the invention example of the oxidizing gas adsorption removal composition

도 3은 알킬디아민 농도에 따른 산화가스 흡착 제거율을 나타낸 그래프3 is a graph showing the adsorption removal rate of oxidizing gas according to alkyldiamine concentration

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

100 : 코크오븐가스 정제장치 10 : 흡수탑 100: coke oven gas purification device 10: absorption tower

11 : 흡수액 공급라인 20 : 코크오븐가스 공급라인 11: absorber supply line 20: coke oven gas supply line

30 : 코크오븐가스 배출라인 40 : 불용성탄산칼슘 필터30 coke oven gas discharge line 40 insoluble calcium carbonate filter

본 발명은 코크오븐가스에 함유된 산화가스의 흡착제거 방법에 관한 것으로서, 보다 상세하게는 코크오븐가스에 함유된 이산화탄소와 이산화황 및 산소 등의 산화가스를 아민화합물을 이용하여 흡착 제거함으로서, 코크오븐가스의 연속적인 정제공정에 적합할 뿐만 아니라 장기간 사용가능하며, 코크오븐가스의 발열량을 높이는 동시에 이산화황과 이산화탄소의 대기방출량을 감소시켜 대기오염 및 이산화탄소에 의한 지구 온난화의 방지에 기여할 수 있도록 한 코크오븐가스에 함유된 산화가스의 흡착제거 방법에 관한 것이다.The present invention relates to a method for adsorption removal of oxidized gas contained in coke oven gas, and more particularly, by adsorbing and removing oxidized gases such as carbon dioxide and sulfur dioxide and oxygen contained in coke oven gas by using an amine compound. Not only suitable for continuous purification process of gas, but also for long-term use, it increases the calorific value of coke oven gas and reduces the atmospheric emission of sulfur dioxide and carbon dioxide, which contributes to the prevention of global warming by air pollution and carbon dioxide. The present invention relates to a method for removing adsorption of oxidizing gas contained in gas.

일반적으로 석탄을 이용한 건류 공정을 통한 코크스 제조과정에서는 코크오븐가스, 타르 및 수분이 발생되는데, 이러한 생성물 중 타르 및 수분은 액상상태로 회수 처리되며, 가스 상태인 코크오븐가스는 포집되어 제철소내의 에너지원으로 사용된다. Generally, coke oven gas, tar, and water are generated in the coke manufacturing process through the coal-drying process using coal. Among these products, tar and water are recovered and processed in a liquid state, and the gaseous coke oven gas is collected and energy in the steel mill. Used as a circle.

그러나, 상기 코크오븐가스 중에는 연료로 활용되지 못하는 이산화탄소, 이산화황 및 유입 산소가 일부 함유되어 있어 코크오븐가스의 부피증가와 함께 발열량을 감소시키게 되며, 대기중으로 방출되어 이산화황에 의한 대기오염 및 이산화탄소에 의한 지구 온난화 현상 등을 야기시키는 원인이 되고, 상기와 같은 문제점을 해결하기 위하여 코크오븐가스는 정제공정을 거치게 된다.However, the coke oven gas contains some carbon dioxide, sulfur dioxide and inflowing oxygen, which are not used as fuels, thereby reducing the calorific value with the increase of the volume of the coke oven gas, and being released into the atmosphere, caused by air pollution and carbon dioxide caused by sulfur dioxide. Coke oven gas is subjected to a purification process in order to cause global warming, and to solve the above problems.

도 1은 코크오븐가스에 함유된 산화가스를 제거하기 위한 일반적인 코크오븐가스 정제장치의 개략도로서, 이를 통해 코크오븐가스의 정제공정을 살펴보면, 코크스의 제조과정에서 생성된 코크오븐가스는 코크오븐가스 정제장치(100)의 코크오븐가스 공급라인(20)을 통해 장치 내부로 삽입되어 장치 상부에 구성된 흡수탑(10)을 통과하여 정제된 후 코크오븐가스 배출라인을 통해 배출되게 된다.1 is a schematic view of a general coke oven gas refining apparatus for removing oxidized gas contained in the coke oven gas, when looking at the process for refining the coke oven gas, the coke oven gas generated in the manufacturing process of the coke is coke oven gas It is inserted into the apparatus through the coke oven gas supply line 20 of the refining apparatus 100 is purified through the absorption tower 10 configured in the upper portion of the apparatus is discharged through the coke oven gas discharge line.

상기의 흡수탑(10)에는 코크오븐가스에서 산화가스를 흡수하여 제거하기위한 흡수액이 흡수액 공급라인(11)을 통해 공급되어 분사되며, 분사 후의 흡수액은 코 크오븐가스의 이산화탄소와의 반응에 의해 생성된 불용성탄산칼슘을 포함하고 있어, 외부에 별도로 구성된 불용성탄산칼슘필터(40)를 거쳐 순환되면서 불용성탄산칼슘을 제거하고 다시 재활용되어 흡수탑(10)에서 분사되게 된다.The absorption tower 10 is supplied with the absorption liquid for absorbing and removing the oxidizing gas from the coke oven gas through the absorption liquid supply line 11, and the absorption liquid after the injection is reacted with the carbon dioxide of the coke oven gas The produced insoluble calcium carbonate is included, and is circulated through the insoluble calcium carbonate filter 40 separately configured on the outside to remove the insoluble calcium carbonate and recycled to be sprayed from the absorption tower (10).

상기의 흡수액은 코크오븐가스를 정제하기 위해 사용되는 것으로서, 일반적으로 안수(암모니아수)를 사용하여 코크오븐가스의 유화수도 등을 제거하게 된다. 그러나 상기의 안수는 코크오븐가스에 함유된 유화수도 등은 제거 가능하나 이산화탄소와 이산화황 및 산소 등의 산화가스는 제거하지 못하는 단점이 있을 뿐만 아니라 상기의 산화가스가 안수에 의한 유화수소의 제거반응을 억제하게 되는 문제점이 있었다.The absorption liquid is used to purify the coke oven gas, and generally removes the degree of emulsification of the coke oven gas using ordination (ammonia water). However, the ordination can remove the emulsified water contained in the coke oven gas, but there is a disadvantage in that the oxidized gas such as carbon dioxide, sulfur dioxide, and oxygen can not be removed, and the oxidized gas can remove the hydrogen sulfide reaction by ordination. There was a problem that was suppressed.

한편, 상기의 문제점을 해결하기 위한 수단으로 고체의 이산화탄소 흡착제와 이산화황 흡착제, 산소를 제거하기 위한 고체 금속 반응물을 사용하였으나 이는 노화가 쉽게 되어 코크오븐가스를 코크오븐가스 정제장치(100) 내에 통과시키는 연속공정에는 사용하기 어려운 문제점이 있었으며, 이물질의 부착 및 산화에 의해 장기간 사용하기 어려운 등의 문제점이 있었다.On the other hand, as a means for solving the above problems, a solid carbon dioxide adsorbent, a sulfur dioxide adsorbent, and a solid metal reactant for removing oxygen were used, which is easy to age, thereby allowing the coke oven gas to pass through the coke oven gas purification apparatus 100. In the continuous process, there was a problem that is difficult to use, there was a problem such as difficult to use for a long time by the adhesion and oxidation of foreign matter.

본 발명은 상술한 문제점을 해결하기 위한 것으로서, 특히, 본 발명은 아민화합물을 코크오븐가스 정제장치 내의 흡수탑에서 분사하여 코크오븐가스에 함유된 이산화탄소와 이산화황 및 산소 등의 산화가스를 제거함으로서, 코크오븐가스의 연속적인 정제공정에 적합할 뿐만 아니라 장기간 사용가능하며, 코크오븐가스의 발열량을 높이는 동시에 이산화황과 이산화탄소의 대기방출량을 감소시킬 수 있도록 한 코크오븐가스에 함유된 산화가스의 흡착제거 방법을 제공함에 목적이 있다.The present invention is to solve the above problems, in particular, the present invention by spraying the amine compound in the absorption tower in the coke oven gas purification apparatus to remove the carbon dioxide and the oxidizing gas such as sulfur dioxide and oxygen contained in the coke oven gas, Adsorption and removal of oxidized gas contained in coke oven gas, which is suitable for the continuous purification process of coke oven gas and can be used for a long time, and increases the calorific value of coke oven gas and reduces the atmospheric emission of sulfur dioxide and carbon dioxide. The purpose is to provide.

상술한 목적을 달성하기 위한 본 발명의 특징은, 알킬디아민, 알킬트리아민을 일종 또는 2종 이상 혼합하여 산화가스 흡착제거용 조성물을 제조하는 단계와, 상기 조성된 산화가스 흡착제거용 조성물을 흡수탑에서 분사하는 동시에 상기 코크오븐가스를 흡수탑에 통과시켜 코크오븐가스와 상기 조성물이 접촉되도록 함으로서 상기 코크오븐가스 중의 산화가스를 제거하는 단계를 포함하는 코크오븐가스에 함유된 산화가스의 흡착제거 방법이다.Features of the present invention for achieving the above object, the step of preparing a composition for oxidizing gas adsorption removal by mixing one or two or more types of alkyldiamine, alkyltriamine, and absorbing the oxidized gas adsorption removal composition Adsorption removal of the oxidized gas contained in the coke oven gas, including the step of spraying the coke oven gas at the same time to pass through the absorption tower to the coke oven gas and the composition to remove the oxidized gas in the coke oven gas It is a way.

상기 본 발명의 각 특징에 의한 알킬디아민, 알킬트리아민을 일종 또는 2종 이상 혼합하여 제조한 산화가스 흡착제거용 조성물은 증류수를 사용하여 농도를 3 부피% 이상으로 유지함으로서 산화가스의 흡착제거율을 더욱 증가시킬 수 있게 구성할 수도 있을 것이다.Oxidation gas adsorption removal composition prepared by mixing one or two or more types of alkyldiamine and alkyltriamine according to the above features of the present invention is maintained by adsorbing removal rate of oxidized gas by maintaining the concentration at 3 vol% or more using distilled water. It may be configured to increase further.

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

본 발명의 코크오븐가스에 함유된 산화가스의 흡착제거 방법은 알킬디아민, 알킬트리아민을 일종 또는 2종 이상 혼합하여 산화가스 흡착제거용 조성물을 제조하고, 상기 조성물을 코크오븐가스 정제장치의 흡수탑에서 코크오븐가스와 접촉시켜 코크오븐가스 중의 산화가스를 제거하는 것이다.
여기서, 상기 알킬기로는 탄소수 1~3의 저급 알킬이 좋고 상기 알킬디아민, 알킬트리아민으로서 에틸디아민, 에틸트리아민이 바람직하다.Adsorption removal method of the oxidized gas contained in the coke oven gas of the present invention is to prepare a composition for the adsorption removal of oxidized gas by mixing one or more kinds of alkyldiamine, alkyltriamine, and absorption of the composition in the coke oven gas purification device The tower is in contact with the coke oven gas to remove oxidized gas in the coke oven gas.
As the alkyl group, lower alkyl having 1 to 3 carbon atoms is preferable, and ethyldiamine and ethyltriamine are preferable as the alkyldiamine and alkyltriamine.

이하 하기의 실험예 1 및 실험예 2를 통해 산화가스 흡착제거용 조성물의 발명예에 따른 산화가스 흡착 제거율 및 알킬디아민 농도에 따른 산화가스 흡착 제거율을 나타내어 상기 본 발명의 산화가스 흡착제거용 조성물의 효과를 증명하면 다 음과 같다.Through the following Experimental Example 1 and Experimental Example 2 shows the oxidation gas adsorption removal rate and the oxidation gas adsorption removal rate according to the alkyldiamine concentration according to the invention example of the oxidation gas adsorption removal composition of the oxidizing gas adsorption removal composition of the present invention Proving the effect is as follows.

[실험예 1]Experimental Example 1

본 실험예에서는 알킬디아민, 일킬트리아민을 일종 또는 2종 혼합하고 증류수와 혼합하여 농도를 3부피%로 한 산화가스 흡착제거용 조성물을 제조하여 크크오븐가스 중에 함유된 이산화탄소, 이산화황 및 산소의 제거 반응효율을 측정하고자 하였으며, 본 실험예의 실험시행 공정 온도는 20℃로 하였다. 상기 조성물이 코크오븐가스 중 이산화탄소, 이산화황 및 산소와 흡착 반응이 유도되도록 흡수탑에서 분사시키고 동시에 코크오븐가스를 흡수탑에 통과시키면서 측정하였으며, 코크오븐가스 중에 함유된 초기 이산화탄소와 이산화황 및 산소농도는 2.8%, 0.04%, 0.8%로 합이 3.64%이다.In this Experimental Example, an oxidizing gas adsorption removal composition having a concentration of 3% by volume was mixed with one kind or two kinds of alkyldiamine and ilkytriamine and mixed with distilled water to remove carbon dioxide, sulfur dioxide and oxygen contained in crank oven gas. The reaction efficiency was measured, and the experimental process temperature of the present experimental example was 20 ° C. The composition was measured while spraying the absorption tower so that the adsorption reaction with carbon dioxide, sulfur dioxide and oxygen in the coke oven gas and passing the coke oven gas through the absorption tower, the initial carbon dioxide, sulfur dioxide and oxygen concentration contained in the coke oven gas 2.8%, 0.04%, 0.8%, the sum is 3.64%.

하기 표 1에 상기 실험을 위한 발명예 및 비교예의 구성성분을 나타내었으며, 상기 실험을 거친 후 정제된 코크오븐가스 중에 함유된 이산화탄소와 이산화황 및 산소농도를 가스크로마토그래피로 측정하고 초기 농도와 비교하여 제거율로 환산하고 그 결과를 도 2에 나타내었다. Table 1 shows the constituents of the invention examples and comparative examples for the experiment, and after measuring the carbon dioxide, sulfur dioxide and oxygen concentration contained in the purified coke oven gas by gas chromatography and compared with the initial concentration Converted to the removal rate and the results are shown in FIG.

실시예Example 시료상태Sample state 농도(부피%)Concentration (% by volume) 비고Remarks 발명예 1Inventive Example 1 알킬디아민(에틸디아민)Alkyldiamine (ethyldiamine) 3 부피%3% by volume 발명예의 각 농도는 증류수를 사용하여 조정 Each concentration of the invention example was adjusted using distilled water 발명예 2Inventive Example 2 알킬트리아민(에틸트리아민)Alkyltriamine (ethyltriamine) 3 부피%3% by volume 발명예 3Inventive Example 3 알킬디아민(에틸디아민)과 알킬트리아민(에틸트리아민)을 1 : 1로 혼합Alkyldiamine (ethyldiamine) and alkyltriamine (ethyltriamine) 1: 1 mixed 3 부피%3% by volume 비교예 1Comparative Example 1 증류수Distilled water

도 2에 나타낸 바와 같이, 비교예에 비하여 발명예의 코크오븐가스 중의 이산화탄소와 이산화황 및 산소의 제거효율은 50%이상을 나타내고 있으며, 이 결과를 통해 상기 발명예에 따른 본 발명의 일킬디아민과 일킬트리아민을 1종 또는 2종 이상 혼합하여 제조한 산화가스 흡착제거용 조성물은 코크오븐가스 중에 함유된 이산화탄소와 이산화황 및 산소를 제거하는데 충분히 효과적임을 알 수 있다.As shown in FIG. 2, the removal efficiency of carbon dioxide, sulfur dioxide and oxygen in the coke oven gas of the invention example was 50% or more, as compared to the comparative example. Oxidation gas adsorption removal composition prepared by mixing one or two or more amines can be seen to be effective enough to remove the carbon dioxide, sulfur dioxide and oxygen contained in the coke oven gas.

[실험예 2]Experimental Example 2

본 실험예에서는 조성물의 최적 농도조건을 찾기 위한 실험으로 상기 조성물 중 일킬디아민의 농도를 0, 1부피%, 3부피%, 5부피%, 7부피%, 9부피% 로 하여 각 농도에 따른 산화가스의 제거율을 측정하였다. 실험시행 공정 온도는 20℃로 하였으며, 코크오븐가스 중에 함유된 초기 이산화탄소와 이산화황 및 산소농도는 2.8%, 0.04%, 0.8%로 합이 3.64%이고 상기 실험을 거친 후 정제된 코크오븐가스 중에 함유된 이산화탄소와 이산화황 및 산소농도를 가스크로마토그래피로 측정하고 초기 농도와 비교하여 제거율로 환산하고 그 결과를 도 3에 나타내었다. In this Experimental Example, the concentration of ilkyldiamine in the composition was 0, 1%, 3%, 5%, 7%, and 9% by volume. The removal rate of the gas was measured. Experimental process temperature was 20 ℃, the initial carbon dioxide, sulfur dioxide and oxygen concentration contained in the coke oven gas is 2.8%, 0.04%, 0.8% sum total 3.64% and contained in the purified coke oven gas after the experiment The carbon dioxide, sulfur dioxide, and oxygen concentrations were measured by gas chromatography, and compared with the initial concentrations.

도 3에 나타낸 바와 같이, 흡착제거율이 거의 없는 상태에서 시작하여 일킬디아민의 농도를 1부피%로 높이는 경우 흡착제거율이 30% 정도로서 코크오븐가스 중의 이산화탄소와 이산화황 및 산소의 제거효과가 농도 3부피% 미만에서는 미약하였으나, 3부피% 이상에서는 급속하게 증가되는 것을 알 수 있다. 따라서 본 발명에서는 알킬디아민 또는 알킬트리아민의 농도를 3부피%이상 유지할 경우, 효과가 극대화됨을 보이며 본 발명의 바람직한 조건이 된다.As shown in FIG. 3, the adsorption removal rate is about 30% and the removal effect of carbon dioxide, sulfur dioxide and oxygen in the coke oven gas is increased by 3% by volume when the concentration of ilkidiamine is increased to 1% by volume in the absence of adsorption removal rate. It was found to be less than below, but increased rapidly above 3% by volume. Therefore, in the present invention, when the concentration of the alkyldiamine or alkyltriamine is maintained at 3% by volume or more, the effect is maximized and becomes a preferred condition of the present invention.

이외에도 본 발명인 코크오븐가스에 함유된 산화가스의 흡착제거 방법은 다양하게 변형실시될 수 있는 것으로, 본 발명의 목적범위를 일탈하지 않는 한, 변형되는 실시예들은 모두 본 발명의 권리범위에 포함되어 해석되어야 한다.In addition, the adsorption removal method of the oxidized gas contained in the coke oven gas of the present invention may be variously modified, and the embodiments to be modified are all included in the scope of the present invention without departing from the scope of the present invention. Should be interpreted.

이상의 본 발명에 의하면, 코크오븐가스에 함유된 이산화탄소와 이산화황 및 산소 등의 산화가스를 아민화합물을 이용하여 효율적으로 제거함으로서, 코크오븐가스의 연속적인 정제공정에 적합할 뿐만 아니라 장기간 사용가능하며, 코크오븐가스의 발열량을 높이는 동시에 이산화황과 이산화탄소의 대기방출량을 감소시켜 대기오염 및 이산화탄소에 의한 지구 온난화의 방지에 기여할 수 있도록 하는 등의 이점을 얻을 수 있게 된다.According to the present invention, by effectively removing the carbon dioxide and the oxidizing gas such as sulfur dioxide and oxygen contained in the coke oven gas by using an amine compound, it is suitable for the continuous purification process of the coke oven gas and can be used for a long time, By increasing the calorific value of the coke oven gas and reducing the atmospheric emissions of sulfur dioxide and carbon dioxide, it is possible to contribute to the prevention of global warming by air pollution and carbon dioxide.

Claims (2)

코크스 제조과정에서 발생하는 코크오븐가스 중에 함유된 이산화탄소와 이산화황 및 산소 등의 산화가스를 제거하는 방법에 있어서,In the method for removing carbon dioxide and oxidizing gases such as sulfur dioxide and oxygen contained in the coke oven gas generated during the coke production process, 알킬디아민, 알킬트리아민을 일종 또는 2종 이상 혼합하여 산화가스 흡착제거용 조성물을 제조하는 단계와,Preparing a composition for removing adsorption of oxidizing gas by mixing one or more kinds of alkyldiamine and alkyltriamine; 상기 조성된 산화가스 흡착제거용 조성물을 흡수탑에서 분사하는 동시에 상기 코크오븐가스를 흡수탑에 통과시켜 코크오븐가스와 상기 조성물이 접촉되도록 함으로서 상기 코크오븐가스 중의 산화가스를 제거하는 단계를 포함하는 것을 특징으로 하는 코크오븐가스에 함유된 산화가스의 흡착제거 방법.And removing the oxidized gas in the coke oven gas by injecting the composition of the oxidized gas adsorption removal composition in the absorption tower and simultaneously passing the coke oven gas through the absorption tower so that the coke oven gas is in contact with the composition. Adsorption removal method of the oxidizing gas contained in the coke oven gas, characterized in that. 제 1항에 있어서,The method of claim 1, 알킬디아민, 알킬트리아민을 일종 또는 2종 이상 혼합하여 제조된 산화가스 흡착제거용 조성물은, 증류수를 사용하여 농도를 3 부피% 이상으로 유지하는 것을 특징으로 하는 코크오븐가스에 함유된 산화가스의 흡착제거 방법.Oxidation gas adsorption removal composition prepared by mixing one kind or two or more kinds of alkyldiamine and alkyltriamine is characterized in that the concentration of oxidized gas contained in the coke oven gas is maintained by using distilled water at a concentration of 3% by volume or more. Adsorption Removal Method.
KR1020060085174A 2006-09-05 2006-09-05 Removal method by absorption of oxygen compound gas in coke oven gas KR100812948B1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR930012081A (en) * 1991-12-20 1993-07-20 티모시 엔. 비숍 How to remove sulfur dioxide from a gas stream
KR20000069372A (en) * 1996-12-12 2000-11-25 마샤 마그달레나 밴 더 메르베 A method for the removal of carbon dioxide from a process gas
KR20050017749A (en) * 2003-08-08 2005-02-23 한국전력공사 Absorbent for removing carbon dioxide from flue gas

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR930012081A (en) * 1991-12-20 1993-07-20 티모시 엔. 비숍 How to remove sulfur dioxide from a gas stream
KR20000069372A (en) * 1996-12-12 2000-11-25 마샤 마그달레나 밴 더 메르베 A method for the removal of carbon dioxide from a process gas
KR20050017749A (en) * 2003-08-08 2005-02-23 한국전력공사 Absorbent for removing carbon dioxide from flue gas

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