벤젠에 대한 활성탄 및 제올라이트 13X를 충진한 흡착탑에서 탈착 특성

강성원; 서성섭; 민병훈; Sung-Won Kang; Sung-Sup Suh; Byung-Hoon Min

Journal of the Korean Industrial and Engineering Chemistry, Vol.17, No.2, 201-209, April, 2006

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벤젠에 대한 활성탄 및 제올라이트 13X를 충진한 흡착탑에서 탈착 특성

Characteristics of Desorption for Benzene in Activated Carbon and Zeolite 13X Packed Bed

강성원, 서성섭 ^†, 민병훈 ¹

홍익대학교 화학공학과
¹수원대학교 화학공학과

Sung-Won Kang, Sung-Sup Suh^†, and Byung-Hoon Min¹

Department of Chemical Engineering, Hongik University, Seoul 121-791, Korea
¹Department of Chemical Engineering, University of Suwon, Kyongki 445-743, Korea

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초록

활성탄과 제올라이트 13X를 충진시킨 흡착탑에 흡착질인 벤젠을 포화 흡착시킨 후 여러 가지 탈착 방법에 대한 효율을 살펴보았다. 뜨거운 수증기에 의한 탈착, 세정 기체에 의한 탈착, 진공에 의한 탈착 등을 실험하였고, 그 결과 뜨거운 수증기에 의한 탈착이 가장 좋은 탈착 방법으로 판단되었다. 또한 뜨거운 수증기는 흡착탑 내의 온도를 상승시키면서 탈착을 야기시키고 수증기 탈착 과정 이후에는 건조 공정이 수반되어야만 효율이 높아짐을 알 수 있었다. 건조 공정이 수반되지 않을 경우는 수증기가 추후에 흡착을 방해하는 결과를 초래하였다 진공에 의한 탈착은 효과가 매우 적은 것으로 나타났는데 이로부터 벤젠의 경우에 압력 변화에 의한 탈착 보다는 온도 변화에 의한 탈착이 더 효과적인 것으로 판단되었다. 세정 기체에 의한 탈착에서는 진공 탈착과 함께 이루어질 때 좋은 탈착 성능이 나타남을 알 수 있었다.

Various desorption methods were investigated for an activated carbon and zeolite 13X packed bed after benzene adsorption. Desorption experiments using hot steam, purge gas, and vacuation were performed. As a result, the desorption with hot steam showed the best performance. Hot steam makes the temperature in the adsorption column increase and gives arise to the esorption. Drying process should be accompanied to increase the efficiency because steam vapor prevents the adsorption later. The vacuum desorption showed poor performance and it reveals that temperature swing operation is more effective than pressure swing operation. In the purge gas desorption, good performance was achieved using evacuation.

Keywords:benzene;desorption process;steam desorption;activated carbon;zeolite

[References]

Yun JH, Choi DK, Kim SH, AIChE J., 45(4), 751 (1999)
Minister of Environment, Enviromental Statistics Yearbook, Minister of Environment, Seoul (2003)
De Never N, Air Pollution Control Engineering, McGraw-Hill, New York (1995)
Kim SY, A Study on the Source Charaterization of Volatile Organic Compounds from Major Emission Sources, MS.E thesis Konkuk Univ., Seoul (1998)
Yun JH, Multicomponent Adsorption of VOCs and thermal Regeneration of Fixed Beds, Ph.D.Dissertation, Korea Univ., Seoul, Korea (1999)
TAKEUCHI Y, IWAMOTO H, MIYATA N, ASANO S, HARADA M, Sep. Technol., 5(1), 23 (1995)
Kang SW, Min BH, Suh SS, J. Korean Oil Chem. Soc., 19, 108 (2002)
Ritter JA, Yang RT, Chem. Eng. Commun., 108, 289 (1991)
Ruthven DM, Principles of Adsorption and Adsorption Process, Wiley, New York (1984)
Yang RT, Gas Separation by Adsorption Process, Butterworth, Boston (1987)
Hwang KS, Choi DK, Gong SY, Cho SY, Chem. Eng. Sci., 52(7), 1111 (1997)
Ruthven DM, Farooq S, Knaebel KS, Pressure Swing Adsorption, VCH, New York (1993)
Wankat PC, Equilibrium Staged Separations, Prentice-Hall, New Jersey (1988)
Wankat PC, Rate-Controlled Separations, Elsevier Applied Science, London (1990)
Yun JH, Nonideal Behavior of Solvent Vapor Mixtures in Fixed-Bed Adsorber, MS.E thesis, Chonnam National Univ., Gwangjoo, Korea (1996)
Yun JH, Park HC, Moon H, Korean J. Chem. Eng., 13(3), 246 (1996)
Reid RC, Prausnitz JM, Poling BE, The Properties of Gases and Liquids, 4th ed., McGraw-Hill, New York (1988)

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[1] Yun JH, Choi DK, Kim SH, AIChE J., 45(4), 751 (1999)

[2] Minister of Environment, Enviromental Statistics Yearbook, Minister of Environment, Seoul (2003)

[3] De Never N, Air Pollution Control Engineering, McGraw-Hill, New York (1995)

[4] Kim SY, A Study on the Source Charaterization of Volatile Organic Compounds from Major Emission Sources, MS.E thesis Konkuk Univ., Seoul (1998)

[5] Yun JH, Multicomponent Adsorption of VOCs and thermal Regeneration of Fixed Beds, Ph.D.Dissertation, Korea Univ., Seoul, Korea (1999)

[6] TAKEUCHI Y, IWAMOTO H, MIYATA N, ASANO S, HARADA M, Sep. Technol., 5(1), 23 (1995)

[7] Kang SW, Min BH, Suh SS, J. Korean Oil Chem. Soc., 19, 108 (2002)

[8] Ritter JA, Yang RT, Chem. Eng. Commun., 108, 289 (1991)

[9] Ruthven DM, Principles of Adsorption and Adsorption Process, Wiley, New York (1984)

[10] Yang RT, Gas Separation by Adsorption Process, Butterworth, Boston (1987)

[11] Hwang KS, Choi DK, Gong SY, Cho SY, Chem. Eng. Sci., 52(7), 1111 (1997)

[12] Ruthven DM, Farooq S, Knaebel KS, Pressure Swing Adsorption, VCH, New York (1993)

[13] Wankat PC, Equilibrium Staged Separations, Prentice-Hall, New Jersey (1988)

[14] Wankat PC, Rate-Controlled Separations, Elsevier Applied Science, London (1990)

[15] Yun JH, Nonideal Behavior of Solvent Vapor Mixtures in Fixed-Bed Adsorber, MS.E thesis, Chonnam National Univ., Gwangjoo, Korea (1996)

[16] Yun JH, Park HC, Moon H, Korean J. Chem. Eng., 13(3), 246 (1996)

[17] Reid RC, Prausnitz JM, Poling BE, The Properties of Gases and Liquids, 4th ed., McGraw-Hill, New York (1988)