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RISS 인기검색어
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- 주제어 : Pyrolysis Gasification Facility (검색결과 3 건)
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신대윤,문옥란,신찬기 조선대학교 환경공해연구소 2007 環境公害硏究 Vol.20 No.1
The incineration process has commonly used for wastes amount reduction and thermal treatments of pollutants as the technologies accumulated. It investigated the recycling characteristic of the fusion slag which is a last by-product which occurs from 3 facilities which are developed with Municipal waste heat decomposition gasification fusion facility of domestic. We investigated the surface characteristic of 3 melting facility slag with SEM. Therefore we found the surface is soft by cooling water. Also the surface is tough and has small air bubble by cooling air. Ca/Si ratio for alkalinity is high from the slag of the S type melting facility. The slag of T type contents contains much Fe. The melting slag has heavy metals whose contents are Cr 312.1㎎/㎏, Cd ND. Cu 105.9㎎/㎏ and Pb 3.0㎎/㎏. Each heavy metal reduction ratio is Cr 10.72%, Cd 100%, Cu 95.9%, Pb 99.9%. The amount of heavy metals contained fly ash is highly reduced through a heat decomposition fusion process re-in scattering. The Dioxin contents of fusion slag is as following: S type 2.92 pg-TEQ/g, T type 0.87 pg-TEQ/g and P type 0.21 pg-TEQ/g These are very low level comparing with the Dioxin standard 3ng-TEQ/G of Japan. Leaching rate is very low. This satisfies the recycling standard of Germany and the Dioxin Standard of Japan. Therefore we concluded that the possibility of secondary contamination may not happen.
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목질계 바이오매스로부터 가스화에 의한 합성가스 제조 연구
조원준,모용기,송택용,백영순,김승수 한국수소및신에너지학회 2010 한국수소 및 신에너지학회논문집 Vol.21 No.6
Hydrogen is an alternative fuel for the future energy which can reduce pollutants and greenhouse gases. Synthesis gas has played an important role of synthesizing the valuable chemical compounds, for example methanol, DME and GTL chemicals. Renewable biomass feedstocks can be potentially used for fuel and chemicals. Current thermal processing techniques such as fast pyrolysis, slow pyrolysis, and gasification tend to generate products with a large slate of compounds. Lignocellulose feedstocks such as forest residues are promising for the production of bio-oil and synthesis gas. Pyrolysis and gasification was investigated using thermogravimetric analyzer (TGA) and bubbling fluidized bed gasification reactor to utilize forest woody biomass. Most of the materials decomposed between 320℃ and 380℃ at heating rates of 5~20℃/min in thermogravimetric analysis. Bubbling fluidized bed reactor was used to study gasification characteristics, and the effects of reaction temperature, residence time and feedstocks on gas yields and selectivities were investigated. With increasing temperature from 750℃ to 850℃, the yield of char decreased, whereas the yield of gas increased. The gaseous products consisted of mostly CO, CO2, H2 and a small fraction of C1-C4 hydrocarbons.
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Development of Innovation DME Process from Natural Gas and Biomass in KOREA
조원준(Cho, Wonjun),송택용(Song, Taekyong),백영순(Baek, Youngsoon),김승수(Kim, Seung-Soo) 한국신재생에너지학회 2010 한국신재생에너지학회 학술대회논문집 Vol.2010 No.11
Hydrogen is an alternative fuel for the future energy which can reduce pollutants and greenhouse gases. Synthesis gas have played an important role of synthesizing the valuable chemical compound, for example methanol, DME and GTL chemicals. Renewable biomass feedstocks can be potentially used for fuels and chemical production. Current thermal processing techniques such as fast pyrolysis, slow pyrolysis, and gasification tend to generate products with a large slate of compounds. Lignocellulose feedstocks such as forest residues are promising for the production of bio-oil and synthesis gas. Pyrolysis and gasification was investigated using thermogravimetric analyzer (TGA) and bubbling fluidized bed gasification reactor to utilize forest woody biomass. Most of the materials decomposed between 320?C and 380?C at heating rates of 5{sim}20?C/min in thermogravimetric analysis. Bubbling fluidized bed reactor were use to study gasification characteristics, and the effects of reaction temperature, residence time and feedstocks on gas yields and selectivities were investigated. With increasing temperature from 750?C to 850?C, the yield of char decreased, whereas the yield of gas increased. The gaseous products consisted of mostly CO, co₂, H2 and a small fraction of C1-C4 hydrocarbons.
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