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Language: korean

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received March 15, 2006
Accepted May 23, 2006

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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CO2 제거용 흡착제 Sodium Glycinate의 물성측정과 추산

Determination and Calculation of Physical Properties for Sodium Glycinate as a CO2 Absorbent

박소진^† 장경룡¹ 박인환²

So-Jin Park^† Kyung-Ryong Jang¹ In Hwan Park²

충남대학교 공과대학 바이오응용화학부, 305-764 대전시 유성구 궁동 220 ¹한전 전력연구원 발전연구실 환경그룹, 305-380 대전시 유성구 문지동 103-16 ²한국화학연구원 화학소재연구단, 305-600 대전시 유성구 장동 100

School of Applied Chemistry and Biological Engineering, Chungnam National University, 220, Gung-dong, Yuseong-gu, Daejeon 305-764, Korea ¹Power Generation Research Lab., Korea Electric Power Research Institute, 103-16, Munji-dong, Yuseong-gu, Daejeon 305-380, Korea ²Advanced Material Division, Korea Research Institute of Chemical Technology, 100, Jang-dong, Yuseong-gu, Daejeon 305-600, Korea

sjpark@cnu.ac.kr

Korean Chemical Engineering Research, June 2006, 44(3), 277-283(7), NONE Epub 19 July 2006

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Abstract

화력발전소에서 배출되는 배연가스에서의 CO2 가스 흡수를 목적으로 sodium glycinate계 흡수제를 개발하기 위하여 sodium glycinate의 순수 및 수용액의 물성인 용해도, 증기압과 비점, 열전도 및 증발 잠열을 측정 또는 추산하였다. 용매인 H2O 25 g에 대한 sodium glycinate의 온도별 용해도는 y = 0.3471x + 20.993의 1차 함수 관계로 증가하였다. Sodium glycinate 10 wt％, 20 wt％, 30 wt％, 40 wt％, 50 wt％, 60 wt％ 수용액의 증기압과 비점을 측정하고, Antoine 상수를 구하였으며 Clausius- Clapeyron 식을 이용하여 증기압 측정값으로 증발 잠열을 구하였다. Sodium glycinate 분체의 열전도도 측정은 분체를 disk판으로 성형한 후, 고체 열전도도 측정 장치로 측정하였으며 그 값은 1.0933 kcal/m·hr·°C 이었다.

Aqueous solution of sodium glycinate was checked as a suitable CO2 absorbent from the flu gas in the thermal power plant. For this purpose, solubility, vapor pressure, latent heat of vaporization and thermal conductivity were determined for pure and aqueous solution of sodium glycinate. The solubility of sodium glycinate in the solvent, 25 g of H2O, was increased with increasing the temperature and their relation was represented as a first order equation of y = 0.3471x + 20.993. The vapor pressure for 10 wt％ to 60 wt％ of aqueous sodium glycinate solution were determined and the latent heat of vaporization of each aqueous solution was calculated from measured vapor pressure using Clausius-Clapeyron equation. Besides, thermal conductivity of sodium glycinate powder was also determined and it was 1.0933 kcal/m·hr·°C.

Keywords

Sodium Glycinate CO2 Absorbent Solubility Vapor Pressure Latent Heat of Vaporization Thermal Conductivity

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