Articles & Issues

Language: english

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

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.

All issues

성형조건에 따른 무연탄계 활성탄의 세공특성

Pore Characteristics of Anthracite-based Activated Carbon According to Granulation Process

이송우^† 나영수 김도한 류동춘¹ 최동훈¹ 류병순¹ 송승구¹

Song-Woo Lee^† Young-Soo Na Do-Han Kim Dong-Chun Ryu¹ Dong-Hoon Choi¹ Byung-Soon Ryu¹ Seung-Koo Song

부산대학교 화학공학과, 부산 609-735 ¹부산광역시 상수도 사업본부, 부산 609-735

Department of Chemical Engineering, Pusan National University, Busan 609-735, Korea ¹Water Works H.Q. Busan Metropolitan City, Busan 611-735, Korea

lsowoo@hanmail.net

HWAHAK KONGHAK, February 2002, 40(1), 128-132(5)
https://doi.org/NONE

Download PDF

Abstract

본 연구는 무연탄으로 활성탄을 제조할 경우 성형이 세공특성에 미치는 효과를 고찰한 것이다. 3가지 다른 방법으로 활성탄(파쇄형 활성탄, 압축성형 활성탄, 압축성형 활성탄)을 제조하여 특성을 비교했다. 이중에서 25%의 콜타르와 7%의 물을 혼합하여 압출 성형한 활성탄의 비표면적, 세공부피, 그리고 경도에서 가장 좋은 물성을 나타내었다. 압축 및 압출 성형체의 표면은 무연탄 원탄과는 달리 무연탄 분말이 바인더와 혼합되어 있으므로 매우 거진 상태를 나타내었고, 활성화시 거칠게 형성되어 있는 입자사이로 활성화제인 수증기가 쉽게 침투하여 많은 세공을 형성시킴을 알 수 있었다. 이렇게 형성된 세공을 통해 수증기 활성화반응이 잘 일어나 직경 3,000-50,000 Å 범위의 거대세공이 발달하였다. 파쇄형 활성탄에 비해 약 2배의 거대세공(macropore)부피를 가지고 있었으며 경도도 30%에서 95% 이상으로 상승되었다.

This study was to investigate the effect of granulation process on pore characteristics in manufacturing anthracitebased activated carbons. The activated carbons were made by three different methods to compare characteristics: the crushed activated carbon, the compressed activated carbon, and the extruded activated carbon. Among these activated carbons, the_x000D_ extruded activated carbon using a binder that consists of 25% coal tar and 7% water showed the best characteristics in specific surface area, pore volume, and hardness. Since the compressed and the extruded substances had coarser surfaces than a raw material, steam could penetrate easily through particles and produce macropores especially in the diameter ranges of 3,000-_x000D_ 50,000 Å during activation process. The extruded activated carbon showed about twice more macropore volumes than the crushed activated carbon and the hardness was increased from 30% up to 95%.

Keywords

Granular Activated Carbon Anthracite Pore Size Distribution

References

Moore BC, Cannon FS, Westrick JA, Metz DH, Shrive CA, DeMarco J, Hartman DJ, Carbon, 39, 789 (2001)
Lee SW, Moon JC, Lee CH, Ryu DC, Choi DH, Song SK, J. KSEE, 23, 1211 (2001)
Song SK, Lee SW, Kwon TH, Moon JC, "Feasibility Study of Commercializing a Localized Granular Activated Carbon," Busan Metropolitan City Technical Report (1999)
Lee SW, Ph.D. Dissertation, Pusan National University, Busan, Korea (2001)
Lee SW, Moon JC, Kim DH, Lee CH, Choi DH, Ryu DC, Song SK, J. Environ. Stud., 18, 55 (2000)
Lee SW, Na YS, Kim DH, Choi DH, Ryu DC, Song SK, J. Korean Environ. Sci. Soc., 9, 345 (2000)
Lee SW, Moon JC, Lee CH, Choi DH, Ryu DC, Song SK, J. KSEE, 22, 2141 (2000)
Allen T, "particle Size Measurement," 4th ed., Champman & Hall, 633 (1990)
Choi JI, Lee SB, Kim DY, J. KSEE, 22, 1037 (2000)
Lee SW, Kwon TH, Na YS, Choi DH, Ryu DC, Song SK, J. Korean Environ. Sci. Soc., 9, 339 (2000)
KS, Test Methods for Activated Carbon, M 1802 (1993)
Mircomeritics, ASAP 2010 Manual, Appendix C (1997)