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2018 Vol.28, Issue 12 Preview Page
Reduction of SnO2 by a Mixed Gas of Methane and Hydrogen

메탄과 수소의 혼합 가스에 의한 산화주석의 환원

Taeyang Han1
,
Youhan Sohn1
,
Sangyeol Kim2
,
Hyun-Chul Jung2
,
Hyun You Kim1
,
San-ro Lee2
,
Jun Hyun Han1†
한 태양1
,
손 유한1
,
김 상열2
,
정 현철2
,
김 현유1
,
이 상로2
,
한 준현1†
1Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Repulic of Korea
2A1 Engineering Co. Ltd., Suncheon 58034, Republic of Korea
1충남대학교 신소재공학과
2㈜에이원엔지니어링
†Corresponding author : E-Mail : jhhan@cnu.ac.kr (J. H. Han, Chungnam Nat'l Univ.)
December 2018. pp. 725-731
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Abstract

We investigate the reduction of SnO2 and the generation of syngas(H2, CO) using methane(CH4) and hydrogen(H2) or a mixed gas of methane and hydrogen as a reducing gas. When methane is used as a reducing gas, carbon is formed by the decomposition of methane on the reduced Sn surface, and the amount of generated carbon increases as the amount and time of the supply of methane increases. However, when hydrogen is used as a reducing gas, carbon is not generated. High purity Sn of 99.8 % and a high recovery rate of Sn of 93 % are obtained under all conditions. The effects of reducing gas species and the gas mixing ratio on the purity and recovery of Sn are not significantly different, but hydrogen is somewhat more effective in increasing the purity and recovery rate of Sn than methane. When 1 mole of methane and 1 mole of hydrogen are mixed, a product gas with an H2/CO value of 2, which is known to be most useful as syngas, is obtained.

Keywords
tin oxide
reduction
methane
hydrogen
syngas
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Information
  • Publisher :Materials Research Society of Korea
  • Publisher(Ko) :한국재료학회
  • Journal Title :Korean Journal of Materials Research
  • Journal Title(Ko) :한국재료학회지
  • Volume : 28
  • No :12
  • Pages :725-731
  • Received Date : 2018-10-05
  • Revised Date : 2018-11-13
  • Accepted Date : 2018-11-15
  • DOI :https://doi.org/10.3740/MRSK.2018.28.12.725
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