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Language: English

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

Publication history: Received December 20, 2004
Accepted July 6, 2005

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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A Study of Desulfurization Ability and Activation Energy for CuO-AgO Sorbents

Hyo-Song Lee Jin-Yong Kim Jae-Keun Yu In-Sub Kil¹ Duk-Hyun Kim¹ Tae-Jin Lee² Young-Woo Rhee^†

Department of Chemical Engineering, Chungnam National University, Daejeon 305-764, Korea ¹Department of Chemical & Biotechnology Engineering, Korea Polytechnic University, Siheung 429-793, Korea ²School of Chemical Engineering and Technology, Yeungnam University, Gyeongsan 712-749, Korea

Korean Journal of Chemical Engineering, November 2005, 22(6), 889-893(5), 10.1007/BF02705670

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Abstract

In this study, we investigated desulfurization abilities and activation energy using TGA for CuO-AgO sorbents calcined at 700 ℃. CuO was used as a main active material and AgO was used as an additive material and 25 wt% SiO2 was used as a support material. The desulfurization reaction temperatures were 450 ℃, 500 ℃, and 550 ℃ and the regeneration reaction temperature was 700 ℃. From the TGA experiments, the best sulfur loading of CAS1 sorbent containing 1 wt% AgO was about 14.95 g sulfur/100 g sorbent at 550 ℃. The activation energy was calculated by the Chatterjee-Conrad method based on the TGA experiment. Desulfurization ability and activation energy of sorbent were decreased as the content of AgO increased.

Keywords

Desulfurization Ability Activation Energy CuO-AgO Sorbent

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