Clean Technology (청정기술)

The Korean Society of Clean Technology (한국청정기술학회)
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Synthesis of Dimethyl Carbonate by Oxidative Carbonylation of Methanol over Cu Catalysts

구리촉매 상에서의 메탄을 산화카르보닐화에 의한 디메틸카보네이트 합성

  • Park, Jin-Seok (Clean Energy Research Center, Korea Institute of Science and Technology (KIST)) ;
  • Suh, Young-Woong (Clean Energy Research Center, Korea Institute of Science and Technology (KIST)) ;
  • Park, Tae-Jin (Clean Energy Research Center, Korea Institute of Science and Technology (KIST)) ;
  • Suh, Dong-Jin (Clean Energy Research Center, Korea Institute of Science and Technology (KIST))
  • 박진석 (한국과학기술연구원 청정에너지연구센터) ;
  • 서영웅 (한국과학기술연구원 청정에너지연구센터) ;
  • 박태진 (한국과학기술연구원 청정에너지연구센터) ;
  • 서동진 (한국과학기술연구원 청정에너지연구센터)
  • Published : 2008.09.30
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Abstract

The synthesis of dimethyl carbonate (DMC) with Cu catalysts was investigated in a semi-batch high-pressure reactor. DMC was synthesized via the direct oxidative carbonylation of carbon monoxide with oxygen in methanol. The corrosion rate was evaluated fie the weight change for SUS test pieces which had been added into the reactor. In order to reduce the corrosion rate without significantly losing DMC yield, various additives such as amines, olefins, and other metal salts were used. When 1-methylimidazole was used as an additive, 18.6% of DMC yield could be obtained without corrosion. If the amount of 1-methylimidazole was decreased, a high DMC yield (33.2%) could be obtained with a low corrosion rate (0.5%).

Semi-batch 고압반응기에서 구리촉매를 이용한 디메틸카보네이트(DMC) 합성에 대하여 연구하였다. DMC는 메탄올을 일산화탄소와 산소로 직접 산화성 카르보닐화하여 합성되었다. 부식속도는 반응기에 스테인레스스틸 시험 조각을 미리 넣어서 반응하는 동안 그 무게 변화를 측정하여 구하였다. DMC의 수율을 크게 낮추지 않고 부식속도를 낮추기 위하여 아민, 올레핀, 다른 금속염과 같은 첨가제를 사용하였다. 1-메틸이미다졸을 첨가제로 사용하면 부식 없이 18.6%의 DMC 수율을 얻을 수 있었다. DMC의 사용량을 줄이면 0.5%의 낮은 부식속도로 33.2%의 DMC 높은 수율을 얻을 수 있었다.

Keywords