KR20110130722A - Method and for device regeneration of activated carbon - Google Patents

Method and for device regeneration of activated carbon Download PDF

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KR20110130722A
KR20110130722A KR1020100050193A KR20100050193A KR20110130722A KR 20110130722 A KR20110130722 A KR 20110130722A KR 1020100050193 A KR1020100050193 A KR 1020100050193A KR 20100050193 A KR20100050193 A KR 20100050193A KR 20110130722 A KR20110130722 A KR 20110130722A
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activated carbon
regeneration
regeneration tower
concentration
sulfur oxide
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KR101121867B1 (en
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최종철
류성윤
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현대제철 주식회사
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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
    • C01B32/354—After-treatment
    • C01B32/36—Reactivation or regeneration
    • 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
    • B01J20/34—Regenerating or reactivating
    • B01J20/3416—Regenerating or reactivating of sorbents or filter aids comprising free carbon, e.g. activated carbon

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  • Analytical Chemistry (AREA)
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Abstract

PURPOSE: A method and an apparatus for regenerating activated carbon are provided to set the efficient driving condition of an activated carbon regenerating tower by measuring the regenerated degree of the activated carbon in real time. CONSTITUTION: Activated carbon(S) passing through a hot zone is collected at collecting parts(17, 19, 21) which are arranged at the upper side, the middle, and the lower side of the hot zone. The concentration of sulfur oxide in the collected activated carbon is measured. The concentration of the sulfur oxide is the concentration of hydrogen ions in distilled water in which the collected activated carbon is contained. The driving condition of an activated carbon regenerating tower is controlled according to the measured concentration of the sulfur oxide.

Description

활성탄 재생방법 및 장치{Method and for device regeneration of activated carbon}Activated carbon regeneration method and device {Method and for device regeneration of activated carbon}

본 발명은 활성탄 재생방법 및 장치에 관한 것으로, 더욱 상세하게는 활성탄 재생 효율을 향상시키기 위한 활성탄 재생방법 및 장치에 관한 것이다.The present invention relates to a method and apparatus for regenerating activated carbon, and more particularly, to an activated carbon regeneration method and apparatus for improving activated carbon regeneration efficiency.

발전소, 소각장, 제철소의 소결공장 등에서 발생되는 배가스에는 질산화물(NOx), 황산화물(SOx) 등의 다양한 오염물질이 함유되며, 배가스 중에 함유된 오염물질은 산업발전의 영향으로 그 발생량이 증가하고 있다. Flue gas generated from power plants, incinerators, and sintering plants in steel mills contains various pollutants such as nitrogen oxides (NOx) and sulfur oxides (SOx), and the amount of pollutants contained in flue gases is increasing due to industrial development. .

배가스 중에 함유된 황산화물은 질산화물과 더불어 산성비의 주요 원인일 뿐만 아니라 광학 스모그를 유발시키는 주요 대기오염물질이므로 배가스에서 이러한 오염물질들을 제거한 후 대기로 배출해야만 한다.The sulfur oxides contained in the flue gas are not only the main cause of acid rain along with the nitrates, but also the major air pollutants that cause optical smog.

본 발명의 목적은 활성탄 재생탑의 활성탄 재생정도를 실시간으로 측정하여 활성탄 재생탑의 운전조건을 제어함으로써 활성탄 재생 효율을 향상시키는 활성탄 재생방법 및 장치를 제공하는 것이다. An object of the present invention is to provide an activated carbon regeneration method and apparatus for improving activated carbon regeneration efficiency by controlling the operating conditions of the activated carbon regeneration tower by measuring the activated carbon regeneration degree of the activated carbon regeneration tower in real time.

상기한 바와 같은 목적을 달성하기 위한 본 발명의 특징에 따르면, 본 발명은 활성탄 재생탑에 장입되어 가열대(Hot Zone)를 통과하는 활성탄을 채취하는 단계; 채취한 활성탄의 황산화물(SOx) 농도를 측정하는 단계; 측정된 활성탄의 황산화물 농도에 의하여 상기 활성탄 재생탑의 운전조건을 제어하는 단계를 포함한다.According to a feature of the present invention for achieving the above object, the present invention is charged into the activated carbon regeneration tower collecting the activated carbon passing through the hot zone (Hot Zone); Measuring the sulfur oxide (SOx) concentration of the collected activated carbon; And controlling operating conditions of the activated carbon regeneration tower by the measured sulfur oxide concentration of activated carbon.

상기 활성탄은 상기 가열대의 상부, 중앙, 하부에 형성된 활성탄 채취부에서 각각 채취한다.The activated carbon is collected from the activated carbon collecting units formed at the top, the center, and the bottom of the heating table, respectively.

상기 활성탄의 황산화물 농도는, 채취된 활성탄을 증류수에 장입한 후, 상기 활성탄이 장입된 증류수에서 측정된 수소이온농도이다.The sulfur oxide concentration of the activated carbon is a hydrogen ion concentration measured in distilled water loaded with activated carbon after the collected activated carbon is charged.

상기 재생탑의 운전조건을 제어하는 단계는, 상기 활성탄 재생탑내 활성탄 순환속도 및 열풍 온도를 제어한다.The controlling of the operating conditions of the regeneration tower may include controlling an activated carbon circulation rate and a hot air temperature in the activated carbon regeneration tower.

상기 활성탄 재생탑에 장입되기 직전 활성탄을 채취하여 황산화물(SOx) 농도를 측정하는 단계가 선수행된다.Immediately before charging the activated carbon regeneration tower, collecting activated carbon and measuring sulfur oxide (SOx) concentration are performed.

열처리 구간별로 가열대, 진공대, 냉각대를 구비하는 활성탄 재생탑과; 상기 활성탄 재생탑의 가열대의 상부, 중앙, 하부에 각각 구비되고 회전에 의해 활성탄을 일정량씩 채취하는 활성탄 채취부;를 포함한다.An activated carbon regeneration tower having a heating table, a vacuum table, and a cooling table for each heat treatment section; It includes; an activated carbon harvesting unit provided in each of the upper, the center, the lower portion of the heating table of the activated carbon regeneration tower to collect a predetermined amount of activated carbon by rotation.

본 발명은 활성탄 재생탑의 열풍구간인 가열대의 상부, 중앙, 하부에 활성탄 채취부를 두고 활성탄의 재생과정 중 활성탄을 채취하여 재생정도를 실시간으로 측정한다. The present invention is equipped with an activated carbon collecting portion in the upper, middle, lower portion of the heating zone, which is a hot air section of the activated carbon regeneration tower, and collects the activated carbon during the regeneration of the activated carbon in real time.

활성탄의 재생정도 측정은 활성탄 재생탑의 안정적이고 효율적인 운전을 가능하게 하여 불필요한 과량의 열 손실을 줄일 수 있는 것은 물론 활성탄의 재생 효율을 향상시키는 효과가 있다.The measurement of regeneration of activated carbon enables stable and efficient operation of the activated carbon regeneration tower to reduce unnecessary excess heat loss as well as to improve regeneration efficiency of activated carbon.

또한, 활성탄의 재생 효율이 향상됨에 따라 고농도의 황산화물을 황산 제조 설비로 공급할 수 있어 황산 제조가 안정적이고 효율적인 효과가 있다.In addition, as the regeneration efficiency of activated carbon is improved, sulfuric acid having a high concentration can be supplied to a sulfuric acid production facility, thereby producing a stable and efficient sulfuric acid production.

도 1은 본 발명의 활성탄 재생방법을 개략적으로 나타낸 구성도.
도 2는 도 1의 가열대 부분을 확대한 도로서, 활성탄 채취방법을 보인 개략도.
도 3은 도 2의 부분 확대도. 1 is a schematic view showing the activated carbon regeneration method of the present invention.
Figure 2 is an enlarged view of the heating table portion of Figure 1, a schematic view showing a method of collecting activated carbon.
3 is a partially enlarged view of FIG. 2;

이하, 본 발명의 실시예를 첨부된 도면을 참조하여 상세하게 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

본 발명에 따른 활성탄 재생방법은 활성탄 재생탑(10)의 가열대(11)를 통과하는 활성탄(S)을 일정량 채취한 후에, 채취된 활성탄(S)의 황산화물(SOx) 농도를 측정하고, 측정된 활성탄(S)의 황산화물 농도에 의하여 활성탄 재생탑의 운전조건을 제어하는 것이다. Activated carbon regeneration method according to the present invention after collecting a predetermined amount of activated carbon (S) passing through the heating table 11 of the activated carbon regeneration tower 10, and measure the sulfur oxide (SOx) concentration of the collected activated carbon (S), The operating conditions of the activated carbon regeneration tower are controlled by the sulfur oxide concentration of the activated carbon (S).

활성탄 재생장치는 활성탄 재생탑(10)과, 활성탄 재생탑(10)에서 활성탄을 일정량씩 채취하는 활성탄 채취부(17,19,21)를 포함한다.The activated carbon regeneration apparatus includes an activated carbon regeneration tower 10 and activated carbon retrieval units 17, 19, and 21 for collecting a predetermined amount of activated carbon from the activated carbon regeneration tower 10.

먼저, 활성탄 재생탑에 대해 간략히 설명하면, 활성탄 재생탑(10)은 황산화물이 고농도로 흡착되어 흡착능력을 상실한 활성탄(S) 즉, 폐활성탄에서 황산화물을 탈착시켜 활성탄의 흡착능력을 복원하는 장치이다. 폐활성탄은 그대로 폐기할 경우 2차 환경오염의 요인이 될 수 있으며, 경제적인 손실 또한 크므로 재생할 필요가 있다.First, briefly about the activated carbon regeneration tower, the activated carbon regeneration tower 10 restores the adsorption capacity of activated carbon by desorbing sulfur oxide from activated carbon (S), ie, waste activated carbon, in which sulfur oxide is adsorbed at a high concentration. Device. If the waste activated carbon is disposed of as it is, it may be a cause of secondary environmental pollution, and economical loss is also great, and thus it needs to be recycled.

활성탄 재생탑(10)은 활성탄(S)에 열풍을 통과시켜 황산화물을 활성탄(S)에서 탈착시키는 것을 기본 원리로 한다. 황산화물은 140℃이하에서는 활성탄에 자연적 물리적으로 흡착되나 고온에서 흡착능력이 열화되어 탈착된다. 황산화물의 탈착은 큰 에너지의 흡열반응을 수반하므로 고온에서 실시한다. The activated carbon regeneration tower 10 has a basic principle of desorbing sulfur oxides from the activated carbon S by passing hot air through the activated carbon S. Sulfur oxide is naturally and physically adsorbed on activated carbon below 140 ℃, but desorbs due to deterioration of adsorption capacity at high temperature. Desorption of sulfur oxides is carried out at high temperature since it involves a large energy endothermic reaction.

활성탄 재생탑(10)은 열처리 구간별로 가열대(Hot Zone)(11), 진공대(Vacuum Zone)(13), 냉각대(Cold Zone)(15)로 구성되고, 연소용 N2 가스를 연소시켜 가열대(11)의 내부로 열풍을 공급하여 활성탄(S)을 가열하고, 진공대(13)에서 열량이 높은 풍부가스(Rich gas)를 외부로 배출시키며, 냉각대(15)에서 황산화물이 탈착되어 재생된 활성탄(S)을 냉각시킨 후에 외부로 배출하도록 된다. The activated carbon regeneration tower 10 includes a heating zone 11, a vacuum zone 13, and a cooling zone 15 for each heat treatment section, and burns N 2 gas for combustion. By supplying hot air into the inside of the heating table 11 to heat activated carbon (S), the rich gas (Rich gas) with a high heat amount is discharged to the outside from the vacuum table 13, the sulfur oxide is desorbed from the cooling table (15) After cooling the regenerated activated carbon (S) is discharged to the outside.

외부로 배출된 활성탄(S)은 활성탄 흡착탑(5)에 충진시켜 황산화물을 흡착 제거하는데 재사용되며, 활성탄(S)에서 탈착된 황산화물은 황산화물 회수장치(25)에서 회수하여 황산 제조에 사용하도록 된다.Activated carbon (S) discharged to the outside is filled in the activated carbon adsorption tower (5) and reused to remove the sulfur oxide, the sulfur oxide desorbed from the activated carbon (S) is recovered in the sulfur oxide recovery device (25) to be used for producing sulfuric acid Will be done.

한편, 활성탄 재생과정은 활성탄 재생탑(10)의 가열대(11)를 통과하는 활성탄(S)을 일정량 채취하여 활성탄(S)의 황산화물(SOx) 농도를 측정하는 단계를 포함한다.On the other hand, the activated carbon regeneration process includes the step of collecting a certain amount of activated carbon (S) passing through the heating table 11 of the activated carbon regeneration tower 10 to measure the sulfur oxide (SOx) concentration of the activated carbon (S).

활성탄은 제조비용이 높아 재사용 횟수가 증가할수록 경제적이며, 재생 효율이 높을수록 활성탄 흡착탑의 탈황효율이 높아 배가스 처리를 보다 안정적으로 할 수 있다. Activated carbon is economical as the number of reuse increases due to the high manufacturing cost, and the higher the regeneration efficiency, the higher the desulfurization efficiency of the activated carbon adsorption tower, so that the flue gas treatment can be more stable.

활성탄의 재생 효율을 향상시키고 재사용 횟수를 증가시키기 위해 활성탄 재생탑(10) 내 활성탄(S)을 채취하여 황산화물 농도를 측정한다. 황산화물의 농도 측정으로 활성탄(S)의 황산화물 탈착정도를 실시간으로 확인하며, 황산화물의 탈착정도에 의해 활성탄 재생탑(10)의 운전조건을 제어한다. In order to improve the regeneration efficiency of the activated carbon and increase the number of reuse, activated carbon (S) in the activated carbon regeneration tower 10 is collected to measure sulfur oxide concentration. The sulfur oxide desorption degree of the activated carbon (S) is confirmed in real time by measuring the concentration of sulfur oxides, and the operating conditions of the activated carbon regeneration tower 10 are controlled by the desorption degree of the sulfur oxides.

활성탄(S)은 가열대(11)의 상부, 중앙, 하부에 구비된 활성탄 채취부(17,19,21)를 통해 채취한다. 활성탄 채취부(17,19,21)는 원형관 형태로 일측에 회전 가능한 활성탄 채취기(미도시)를 구비하여 1회 회전에 일정량씩 활성탄 채취부(17,19,21)를 통해 활성탄이 채취되도록 구성된다. 활성탄 채취기는 활성탄 채취부를 회전시키는 구동모터 등이 채용될 수 있다. Activated carbon (S) is collected through the activated carbon collecting unit (17, 19, 21) provided in the upper, center, lower portion of the heating table (11). Activated carbon harvesting unit (17, 19, 21) has a rotatable activated carbon harvester (not shown) in the form of a circular tube so that activated carbon is collected through the activated carbon harvesting unit (17, 19, 21) by a predetermined amount per rotation It is composed. The activated carbon collector may be a drive motor for rotating the activated carbon collector.

활성탄 채취부(17,19,21)가 가열대의 상부, 중앙, 하부에 각각 구비되는 것은 재생 전 활성탄, 재생 중 활성탄, 재생 후 활성탄의 황산화물 농도를 실시간으로 측정하여 활성탄 재생탑의 운전조건을 실시간으로 제어할 수 있도록 하기 위함이다.The activated carbon collecting units 17, 19, and 21 are provided at the top, the center, and the bottom of the heating table, respectively, to measure the sulfur oxide concentrations of activated carbon before regeneration, activated carbon during regeneration, and activated carbon after regeneration in real time. This is to control in real time.

가열대(11)의 상부 활성탄 채취부(17)에서 재생 전 활성탄이 채취되고, 가열대(11)의 중앙의 활성탄 채취부(19)에서 재생 중인 활성탄이 채취되며, 가열대(11)의 하부의 활성탄 채취부(21)에서 재생 후의 활성탄이 채취된다. Activated carbon is collected before regeneration from the upper activated carbon collecting unit 17 of the heating table 11, activated carbon being regenerated from the activated carbon collecting unit 19 in the center of the heating table 11 is collected, and activated carbon is collected from the lower part of the heating table 11. In the unit 21, activated carbon after regeneration is collected.

가열대(11)의 상부, 중앙, 하부를 구분하는 기준은 가열대 내부의 온도이며, 가열대(11)의 상부가 약 100℃, 중앙이 약 350℃, 하부가 약 450℃정도이다. 약 450℃정도인 가열대 하부에서 활성탄의 재생이 완료된다. 여기서, 약의 개념은 각 온도에서 ±50℃인 범위로 하며, 예를 들어, 가열대 상부의 경우 100℃±50℃인 범위가 된다. The reference for distinguishing the top, center, and bottom of the heating table 11 is the temperature inside the heating table, and the upper portion of the heating table 11 is about 100 ° C, the center is about 350 ° C, and the lower part is about 450 ° C. The regeneration of activated carbon is completed at the bottom of the heating table at about 450 ° C. Here, the concept of the drug is in the range of ± 50 ℃ at each temperature, for example, in the range of 100 ℃ ± 50 ℃ in the upper portion of the heating table.

채취한 활성탄(S)의 황산화물 농도는 이온지수 측정기(23)로 측정한다. 이온지수 측정기(23)는 용액 1L속에 장입된 활성탄의 수소 이온량을 측정하여 이를 pH로 나타낸다. 이 pH로 활성탄의 황산화물 탈착정도를 확인한다.Sulfur oxide concentration of the collected activated carbon (S) is measured by the ion index measuring device (23). The ion index measuring device 23 measures the hydrogen ion amount of the activated carbon charged in 1 L of the solution and indicates it as pH. The pH confirms the desorption of sulfur oxides of activated carbon.

일반적으로 탈착이 90% 이상된 활성탄의 경우 pH가 5~7범위를 갖고, 황산화물이 고농도로 흡착된 활성탄의 경우 pH가 1~2범위를 갖는다. In general, in the case of activated carbon with more than 90% desorption, the pH is in the range of 5-7, and in the case of activated carbon in which sulfur oxide is adsorbed at a high concentration, the pH is in the range of 1-2.

활성탄 pH측정값에 따라 활성탄 재생탑(10)의 운전조건을 제어하게 되며, 운전조건은 활성탄 재생탑(10) 내의 활성탄 순환속도와 활성탑 재생탑내 공급되는 열풍 온도 조절로 제어한다. The operating conditions of the activated carbon regeneration tower 10 are controlled according to the activated carbon pH measurement value, and the operating conditions are controlled by controlling the circulation rate of activated carbon in the activated carbon regeneration tower 10 and the hot air temperature supplied in the activated tower regeneration tower.

예를 들어, 가열대의 중앙 활성탄 채취부에서 채취된 활성탄의 pH가 1~2범위로 확인된 경우 탈착 효율을 높이기 위해 활성탄 순환속도를 늦추고 열풍 온도를 높이는 제어를 실시할 수 있다.For example, when the pH of the activated carbon collected from the central activated carbon collection unit of the heating table is confirmed to be in the range of 1 to 2, control to slow down the activated carbon circulation rate and increase the hot air temperature in order to increase the desorption efficiency.

즉, 활성탄 재생탑(10)내의 활성탄(S)의 황산화물 농도를 실시간으로 측정하는 것으로서, 활성탄(S)의 재생정도를 실시간으로 확인할 수 있고, 활성탄이 재생되는 정도에 따라 활성탄 재생탑(10)내 활성탄 순환속도 및 열풍 온도를 조절할 수 있어 불필요한 과량의 열에너지 소모를 감소시킬 수 있다. 또한, 재생을 완료한 활성탄은 재생 효율이 높아 활성탄 흡착탑에 충진시 배가스 처리를 보다 안정적으로 할 수 있다.That is, by measuring the sulfur oxide concentration of the activated carbon (S) in the activated carbon regeneration tower 10 in real time, the regeneration degree of the activated carbon (S) can be confirmed in real time, the activated carbon regeneration tower (10) Activated carbon circulation rate and hot air temperature can be controlled to reduce unnecessary heat energy consumption. In addition, the activated carbon that has completed the regeneration has a high regeneration efficiency, so that the flue gas treatment may be more stable when the activated carbon adsorption column is filled.

활성탄(S)을 활성탄 재생탑(10)에 장입하기전 활성탄의 pH를 측정하는 단계가 선수행된다. 이는 가열대(11)의 상부, 중앙, 하부를 통과하는 활성탄(S)의 pH와 비교함으로써 활성탄(S)의 황산화물 탈착정도를 분석할 수 있도록 하기 위함이다.
The step of measuring the pH of the activated carbon before charging the activated carbon (S) into the activated carbon regeneration tower 10 is performed. This is to analyze the sulfur oxide desorption degree of the activated carbon (S) by comparing the pH of the activated carbon (S) passing through the top, center, and bottom of the heating table (11).

이하에서는 본 발명의 작용을 설명하기로 한다. Hereinafter, the operation of the present invention will be described.

도 1을 참조하면, 배가스는 활성탄이 충전된 활성탄 흡착탑(5)을 통과하면서 배가스 중의 황산화물이 활성탄에 흡착되어 정화된다. 이때, 활성탄 흡착탑(5) 내 충전된 활성탄(S)은 황산화물을 흡착하면서 하부로 이동하여 배출되고, 배출된 활성탄 즉, 폐활성탄은 재생을 위해 컨베이어로 이송된 후 활성탄 재생탑(10)의 상부로 장입된다. Referring to FIG. 1, the exhaust gas passes through an activated carbon adsorption tower 5 filled with activated carbon, and sulfur oxides in the exhaust gas are adsorbed on the activated carbon and purified. At this time, the activated carbon (S) charged in the activated carbon adsorption tower (5) is discharged by moving to the lower while adsorbing sulfur oxides, the discharged activated carbon, that is, waste activated carbon is transferred to a conveyor for regeneration of the activated carbon regeneration tower (10) Charged to the top.

활성탄 재생탑(10)의 상부로 장입된 활성탄(S)은 가열대(11), 진공대(13), 냉각대(15)를 통과하면서 재생되고, 재생된 활성탄(S)은 활성탄 흡착탑(5)의 상부로 공급하여 재활용 된다. The activated carbon S charged into the upper portion of the activated carbon regeneration tower 10 is regenerated while passing through the heating table 11, the vacuum table 13, and the cooling table 15, and the regenerated activated carbon S is activated carbon adsorption tower 5. It is supplied to the upper part of and recycled.

활성탄의 재생과정 중 활성탄의 재생 효율을 향상시키기 위해 아래의 과정이 수행된다.The following process is performed to improve the regeneration efficiency of activated carbon during the regeneration of activated carbon.

우선, 활성탄(S)을 활성탄 재생탑(10)에 장입하기 직전 활성탄을 채취하여 pH를 측정한다. 이는 활성탄에 흡착된 황산화물이 얼마나 탈착되었는지를 확인하기 위함이다. First, the activated carbon is taken immediately before charging activated carbon (S) into the activated carbon regeneration tower 10 to measure pH. This is to confirm how desorbed the sulfur oxide adsorbed on the activated carbon.

이 후, 도 2에 도시된 바와 같이, 활성탄 재생탑(10)에서의 활성탄(S) 재생과정 중 가열대(11)를 통과하는 활성탄(S)을 채취한다. 활성탄(S)은 가열대(11)의 상부, 중앙, 하부에 구비된 활성탄 채취부(17,19,21)를 통해 채취한다. 예를 들어 도 3에 도시된 바와 같이, 활성탄(S)은 활성탄 채취기를 1회 회전하여 30g씩 채취하고, 채취된 활성탄(S)은 증류수 1L에 장입하여 활성탄(S)의 황산화물 농도를 측정한다. 도 3의 화살표는 활성탄 재생탑(10)내 활성탄(S)의 이동 방향을 나타낸 것이다. Thereafter, as shown in FIG. 2, the activated carbon S passing through the heating table 11 is collected during the activated carbon S regeneration process in the activated carbon regeneration tower 10. Activated carbon (S) is collected through the activated carbon collecting unit (17, 19, 21) provided in the upper, center, lower portion of the heating table (11). For example, as shown in FIG. 3, activated carbon (S) is collected by rotating the activated carbon harvester once and collecting 30 g each, and the collected activated carbon (S) is charged into 1 L of distilled water to measure the sulfur oxide concentration of the activated carbon (S). do. 3 shows the direction of movement of the activated carbon S in the activated carbon regeneration tower 10.

활성탄(S)은 활성탄 재생탑(10)에 장입되기 전 채취한 활성탄(S)이 상부, 중앙, 하부 각각의 활성탄 채취부(17,19,21)를 통과하는 시간에 맞춰 채취하며, 채취시간은 활성탄 순환속도를 고려하여 채취한다. Activated carbon (S) is collected in accordance with the time that the activated carbon (S) collected before charging to the activated carbon regeneration tower 10 passes through the activated carbon collecting unit (17, 19, 21) of each of the upper, middle, and lower, the collection time Is taken in consideration of the activated carbon circulation rate.

황산화물의 농도는 pH로 측정하며, 그 방법은 채취된 30g의 활성탄을 1L의 증류수에 장입하고 가열하여 5분간 끓인다. 이후 실온까지 냉각하여 이온지수 측정기(23)로 pH를 측정한다. The concentration of sulfur oxides is measured by pH, the method is charged 30g of activated carbon in 1L of distilled water and heated to boil for 5 minutes. After cooling to room temperature, the pH is measured by the ion index meter (23).

측정된 pH값에 따라 활성탄 재생탑(10) 내 활성탄 순환속도와 공급되는 열풍 온도를 조절한다. 이는 안정적인 활성탄 재생탑(10)의 운전을 가능하게 하고 효율적인 활성탄 재생탑(10)의 운전조건을 설정하는 것이 가능하여 활성탄의 재생 효율을 증대시킨다. The circulation rate of activated carbon in the activated carbon regeneration tower 10 and the supplied hot air temperature are adjusted according to the measured pH value. This makes it possible to operate the stable activated carbon regeneration tower 10 and to set the operating conditions of the effective activated carbon regeneration tower 10 to increase the regeneration efficiency of the activated carbon.

즉, 활성탄에 흡착된 황산화물 농도를 pH로 환산하여 실시간 활성탄의 재생효율을 확인할 수 있어, 보다 안정적이고 효율적인 활성탄 재생탑의 운전조건을 설정할 수 있다. 따라서 활성탄의 재생효율이 향상되는 것이다. That is, it is possible to confirm the regeneration efficiency of the activated carbon in real time by converting the sulfur oxide concentration adsorbed on the activated carbon to pH, and thus it is possible to set more stable and efficient operating conditions of the activated carbon regeneration tower. Therefore, the regeneration efficiency of activated carbon is improved.

도시하지는 않았지만 실험 결과, 재생된 활성탄은 흡착성능의 회복율이 신탄(활성탄)에 대비하여 95% 이상이 되고 활성탄 흡착탑에 충진시 배가스 처리를 보다 안정적으로 할 수 있었다. 또한, 고농도의 황산화물을 황산 제조 설비로 공급할 수 있어 황산 제조가 안정적이고 효율적이었다.Although not shown, the experimental results show that the recovered activated carbon has a recovery rate of 95% or more than that of new carbon (activated carbon), and the exhaust gas treatment can be more stable when the activated carbon adsorption column is filled. Moreover, sulfuric acid production was stable and efficient because a high concentration of sulfur oxides could be supplied to a sulfuric acid production facility.

이를 통해, 불필요한 과량의 열 손실을 줄일 수 있는 것은 물론 활성탄의 재생 효율을 향상시킬 수 있음을 알 수 있다.Through this, it can be seen that not only can reduce unnecessary excess heat loss, but also improve the regeneration efficiency of activated carbon.

이와 같은 본 발명의 기본적인 기술적 사상의 범주 내에서, 당업계의 통상의 지식을 가진 자에게 있어서는 다른 많은 변형이 가능함은 물론이고, 본 발명의 권리범위는 첨부한 특허청구범위에 기초하여 해석되어야 할 것이다. While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art in light of the above teachings. will be.

5:활성탄 흡착탑 10:활성탄 재생탑
11:가열대 13:진공대
15:냉각대 17,19,21:활성탄 채취부
23:이온지수 측정기 25:황산화물 회수장치
S:활성탄5: activated carbon adsorption tower 10: activated carbon regeneration tower
11: heating zone 13: vacuum stand
15: cooling stand 17, 19, 21: activated carbon collection unit
23: ion index measuring instrument 25: sulfur oxide recovery device
S: activated carbon

Claims (6)

활성탄 재생탑에 장입되어 가열대(Hot Zone)를 통과하는 활성탄을 채취하는 단계;
채취한 활성탄의 황산화물(SOx) 농도를 측정하는 단계;
측정된 활성탄의 황산화물 농도에 의하여 상기 활성탄 재생탑의 운전조건을 제어하는 단계를 포함하는 것을 특징으로 하는 활성탄 재생방법.Collecting activated carbon charged in an activated carbon regeneration tower and passing through a hot zone;
Measuring the sulfur oxide (SOx) concentration of the collected activated carbon;
Activated carbon regeneration method comprising the step of controlling the operating conditions of the activated carbon regeneration tower by the measured sulfur oxide concentration of activated carbon. 청구항 1에 있어서,
상기 활성탄은 상기 가열대의 상부, 중앙, 하부에 구비된 활성탄 채취부에서 각각 채취하는 것을 특징으로 하는 활성탄 재생방법.The method according to claim 1,
Activated carbon regeneration method characterized in that the collection of the activated carbon from the activated carbon collection unit provided in the upper, center, lower portion of the heating table. 청구항 1에 있어서,
상기 활성탄의 황산화물 농도는,
채취된 활성탄을 증류수에 장입한 후, 상기 활성탄이 장입된 증류수에서 측정된 수소이온농도인 것을 특징으로 하는 활성탄 재생방법.The method according to claim 1,
Sulfur oxide concentration of the activated carbon,
After charging the collected activated carbon in distilled water, activated carbon regeneration method characterized in that the hydrogen ion concentration measured in the loaded distilled water. 청구항 1에 있어서,
상기 재생탑의 운전조건을 제어하는 단계는,
상기 활성탄 재생탑내 활성탄 순환속도 및 열풍 온도를 제어하는 것을 특징으로 하는 활성탄 재생방법.The method according to claim 1,
Controlling the operating conditions of the regeneration tower,
Activated carbon regeneration method characterized in that for controlling the activated carbon circulation rate and hot air temperature in the activated carbon regeneration tower. 청구항 1 내지 청구항 4중 어느 한 항에 있어서,
상기 활성탄 재생탑에 장입되기 직전 활성탄을 채취하여 황산화물(SOx) 농도를 측정하는 단계가 선수행됨을 특징으로 하는 활성탄의 재생방법.The method according to any one of claims 1 to 4,
The method for regenerating activated carbon, characterized in that the step of measuring the concentration of sulfur oxides (SOx) by taking the activated carbon immediately before being charged into the activated carbon regeneration tower. 열처리 구간별로 가열대, 진공대, 냉각대를 구비하는 활성탄 재생탑과;
상기 활성탄 재생탑의 가열대의 상부, 중앙, 하부에 각각 구비되고 회전에 의해 활성탄을 일정량씩 채취하는 활성탄 채취부;를 포함하는 것을 특징으로 하는 활성탄의 재생장치.An activated carbon regeneration tower having a heating zone, a vacuum zone, and a cooling zone for each heat treatment section;
Activated charcoal regeneration apparatus comprising a; activated carbon collecting unit which is provided in the upper, center, lower portion of the heating table of the activated carbon regeneration tower and collects activated carbon by a predetermined amount by rotation.
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