• Title/Summary/Keyword: 트리메틸아민

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Odor Modeling of trimethyl amine in Gumi National Industrial Complex (구미국가산업단지의 트리메틸아민 악취모델링)

  • Lee, Eun Ju;Khan, Mousumee;Lim, Kwang-Hee
    • Korean Chemical Engineering Research
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    • v.54 no.2
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    • pp.187-199
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    • 2016
  • In this study CALPUFF modeling was performed to predict a contribution of a separate single point pollutant source as well as of total point pollutant sources of major synthetic fiber manufacturers in Gumi national industrial complex to atmospheric trimethylamine concentration of the same area. In addition, a contribution of the separate single point pollution source to the atmospheric trimethylamine concentration of the same area was estimated relatively to the total point pollutant sources. As a result of the CALPUFF modeling, the maximum atmospheric concentration of trimethylamine in Gumi national industrial complex was appeared upon improving T company emission facility frequently in complex 3 in winter (January) and spring (April) while frequently in complex 1 in summer (July) and autumn (October). Besides, the predicted range of the maximum atmospheric concentration of trimethylamine in complex 1 was improved upon improving its emission facility. However, even though in complex 3 the upper bound of the predicted maximum atmospheric concentrations of trimethylamine was increased upon improving T company emission facility, the predicted value of their second upper bound below the upper bound was very similar to the upper bound of measured atmospheric trimethylamine concentrations in Gumi prior to improving its emission facility. Thus, the effect of improving T company emission facility was estimated huge in complex 1 while it was trivial in complex 3. These maximum concentrations of trimethylamine predicted to estimate the expected contribution of total point pollutant sources by CALPUFF modeling showed the similar values to those measured in the region of Gumi. Therefore, the expected contribution of total point pollutant sources to atmospheric trimethylamine concentration in the area of Gumi was validated.

Contents of Histamine, Total Volatile Bases and Trimethylamine in Fresh Fish and Canned Fish Products (생선과 생선통조림의 히스타민, 전휘발성염기 및 트리메틸아민 함량)

  • LEE S. Y.;BYUN S. M.;CHUNG J. R.;PARK D. Y.
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.18 no.3
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    • pp.214-218
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    • 1985
  • A survey was made to determine seasonal variation of histamine, total volatile base and trimethylamine levels in a number of fresh fish and canned fish products as available through present distribution systems in Seoul area in order to assess potential danger of histamine poisoning related problems. Data obtained indicated that those products as available in present distribution systems should present no potential danger of histamine poisoning related problems.

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Adsorption Kinetic Constants for Basic Odorant on Pellet-type Adsorbents Recycled from Water-treatment Sludge (정수 슬러지를 재활용한 펠렛형 흡착제 상에서 염기성 악취 물질의 흡착속도상수)

  • Kim, Goun;Park, Nayoung;Bae, Junghyun;Jeon, Jong-Ki;Lee, Choul Ho
    • Applied Chemistry for Engineering
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    • v.25 no.2
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    • pp.167-173
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    • 2014
  • The adsorption characteristics of the pellet-type adsorbent prepared from water treatment sludge for trimethylamine and ammonia were studied. The surface area and pore volume of the pellet-type adsorbent increased during calcination at $500^{\circ}C$. It was confirmed that the adsorbent prepared from water treatment sludge contained Br$\ddot{o}$nsted and Lewis acid sites. The breakthrough time of the adsorbent for both trimethylamine and ammonia was measured at different adsorbent weights and linear velocities while maintaining constant amounts of trimethylamine and ammonia. The kinetic saturation capacity and the adsorption rate constant for trimethylamine and ammonia were determined at different linear velocities by using the Wheeler equation. It was found that the kinetic saturation capacity and the adsorption rate constant were dependent on the linear velocity. An experimental equation could be derived to predict the breakthrough time of the adsorbent prepared from water treatment sludge for trimethylamine and ammonia at different adsorption conditions.

Characteristics for Adsorption and Thermal Decomposition of Ammonia and Trimethylamine on Honeycomb Photocatalyst (허니컴형 광촉매에 대한 암모니아와 트리메틸아민의 흡착 및 열 분해 특성)

  • 김대중;손건석;고성혁;윤승원;송재원;강진아;이귀영;이재의
    • Proceedings of the Korea Air Pollution Research Association Conference
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    • 2001.11a
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    • pp.295-296
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    • 2001
  • 동물 축사, 폐수 및 하수처리장, 피혁공장, 생선처리시설 등에서 주로 발생하는 암모니아(NH$_3$) 및 트리메틸아민(($CH_3$)$_3$N)과 같은 악취 물질 제거에 대한 많은 연구가 진행되고 있다. 악취 물질에 대한 처리 기술에는 직접 산화법, 고온 연소법, 효소분해법, 흡착법, 촉매 산화법, 플라즈마 제거법 등과 같은 악취 물질을 분해 제거하는 방법과 단순히 악취를 은폐시키는 마스킹법이 있다. (중략)

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Adsorption Performance of Basic Gas over Pellet-type Adsorbents Prepared from Water Treatment Sludge (정수장 슬러지로부터 제조한 입상흡착제의 염기성 가스 흡착 성능)

  • Bae, Junghyun;Park, Nayoung;Lee, Choul Ho;Park, Young-Kwon;Jeon, Jong-Ki
    • Korean Chemical Engineering Research
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    • v.51 no.3
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    • pp.352-357
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    • 2013
  • In this study, the pellet-type adsorbents were prepared by extrusion using water treatment sludge. Effects of binder and calcination on physical and chemical properties of pellet-type adsorbents were investigated. The porous structure and surface characteristics of the adsorbents were studied using nitrogen adsorption, compression strength, scanning electron microscope, X-ray diffraction, and infrared spectroscopy of adsorbed pyridine. With increasing of binder content to 5 wt%, the compressive strength of pellet-type adsorbent could be improved more than three times, but the surface area reduced by 30%, and thus the breakthrough time of trimethylamine was shortened. The breakthrough time of the trimethylamine, a basic gas, could be increased more than three times through calcination, which seems to be due to generation of acid sites composed of Lewis acid and Br$\ddot{o}$nsted acid sites on the adsorbent surface.

Adsorption of Amine and Sulfur Compounds by Cobalt Phthalocyanine Derivatives (코발트 프탈로시아닌 유도체에 의한 아민 및 황 화합물의 흡착)

  • Lee, Jeong Se;Lee, Hak Sung
    • Applied Chemistry for Engineering
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    • v.18 no.6
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    • pp.592-598
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    • 2007
  • The adsorption capability of cobalt phthalocyanine derivatives was investigated by means of X-ray diffractometor (XRD), FT-IR spectroscopy, scanning electron microscopy (SEM), and temperature programmed desorption (TPD). According to TPD results for ammonia, cobalt phthalocyanine derivatives showed two desorption peaks at low temperature ($100{\sim}150^{\circ}C$) and high temperature ($350{\sim}400^{\circ}C$) indicating that there were two kinds of acidities. Tetracarboxylic cobalt phthalocyanine (Co-TCPC) has a stronger desorption peak (chemical adsorption) at high temperature and a weaker desorption peak (physical adsorption) at low temperature than cobalt phthalocyanine (Co-PC). The specific surface areas of Co-TCPC and Co-PC were 37.5 and $18.4m^2/g$, respectively. The pore volumes of Co-TCPC and Co-PC were 0.17 and $0.10cm^3/g$, respectively. The adsorption capability of triethyl amine calculated by breakthrough curve at 120 ppm of equilibrium concentration was 24.3 mmol/g for Co-TCPC and 0.8 mmol/g for Co-PC. The removal efficiencies of dimethyl sulfide of Co-TCPC and Co-PC in batch experiment of 225 ppm of initial concentration were 92 and 18%, respectively. The removal efficiencies of trimethyl amine of Co-TCPC and Co-PC in batch experiment of 118 ppm of initial concentration were 100 and 17%, respectively.

산성과 염기성 혼합악취물질의 활성탄소섬유에 대한 흡착특성 분석

  • 김기환;김덕기;최봉각;신창섭
    • Proceedings of the Korean Institute of Industrial Safety Conference
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    • 1998.05a
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    • pp.125-128
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    • 1998
  • 최근 많은 문제가 되고 있는 피혁공장, 유지공장, 슬러지처리장 등에서 발생하는 악취물질은 크게 산성 악취와 염기성 악취로 나눌 수 있으며, 대표적인 산성악취에는 메틸머켑탄, 황화수소가 있고, 염기성 악취는 암모니아, 트리메틸아민이 있다. 이들 악취물질들은 ACF의 표면을 화학약품으로 처리, 표면을 개질하여 관능기를 부여하고, 또한 화학물질을 첨착시켜 특정악취물질에 대한 제거효율을 증가시킬 수 있다. (중략)

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