http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 주제어 : 유채대 (검색결과 5 건)
- 무료
- 기관 내 무료
- 유료
-
-
Predicting Methane Production on Anaerobic Digestion to Crop Residues and Biomass Loading Rates
신중두,홍승길,박상원,김현욱,Shin, JoungDu,Hong, Seung-Gil,Park, SangWon,Kim, HyunWook Korea Organic Resources Recycling Association 2016 유기물자원화 Vol.25 No.3
본 연구의 목적은 농업에서 발생하는 식물체 잔사 종류별 투입비율에 따른 메탄 잠재 발생량을 예측하는 것이다. 바이오가스를 생산하기 위하여 보릿짚 및 유채대 등의 식물체 잔사를 다양한 투입율로 사용하여 세륨병에서 실험을 수행하였다. 표면 방법론의 운동방법을 통하여 메탄 생산은 Gomperz 수식에 적합한 것으로 나타났다. 중온소화 시 식물체 잔사별 바이오가스 생산에 있어, 최대생산량은 보릿짚 및 유채대 투입율 1%로 혐기소화 후 각각 6.8일에 37.2 mL/g과 7.5일에 28.0 mL/g로 나타났다. 중온소화 시 메탄 함량은 보릿짚 및 유채대 투입율 5%로 혐기소화 후 각각 5.5일에 61.7%와 3.4일에 75.0%로 가장 높게 관측되었다. 중온 소화시 최대 메탄 잠재발생량은 1% 보릿짚 투입율에서 159.59 mL/g 와 3% 유채대 투입율에서 156.62 mL/g로 산정되었다. 전반적으로 중온소화 시 바이오매스 투입율은 유채대 3% 및 보릿짚 1%를 투입하는 것이 적정 비율인 것으로 나타났다. Objective of this experiment was to predict the potential methane production with crop residues at different loading rates. Anaerobic digestion of barley and rapeseed straw substrates for biogas production was performed in Duran bottles at various biomass loading rates with crop residues. Through kinetic model of surface methodology, the methane production was fitted to a Gompertz equation. For the biogas production at mesophilic digestion with crop residues, it was observed that maximum yield was 37.2 and 28.0 mL/g at 6.8 and 7.5 days after digestion with 1% biomass loading rates of barley and rapeseed straws, respectively. For the methane content of mesophilic digestion, there were highest at 61.7% after 5.5 days and 75.0% after 3.4 days of digestion with barley and rapeseed straw on both 5% biomass loading rates, respectively. The maximum methane production potentials were 159.59 mL/g for 1% barley straw and 156.62 mL/g for 3% rapeseed straw at mesophilic digestion. Overall, it would be strongly recommended that biomass loading rate was an optimum rate at mesophilic digestion for using 1% barley and 3% rapeseed straws for feed stocks.
-
혐기 소화 시 식물체 잔사 및 투입량에 따른 메탄 생산량 예측
신중두(JoungDu Shin),홍승길(Seung-Gil Hong),박상원(SangWon Park),김현욱(HyunWook Kim) 유기성자원학회 2016 유기물자원화 Vol.24 No.3
본 연구의 목적은 농업에서 발생하는 식물체 잔사 종류별 투입비율에 따른 메탄 잠재 발생량을 예측하는 것이다. 바이오가스를 생산하기 위하여 보릿짚 및 유채대 등의 식물체 잔사를 다양한 투입율로 사용하여 세륨병에서 실험을 수행하였다. 표면 방법론의 운동방법을 통하여 메탄 생산은 Gomperz 수식에 적합한 것으로 나타났다. 중온소화 시 식물체 잔사별 바이오가스 생산에 있어, 최대생산량은 보릿짚 및 유채대 투입율 1%로 혐기소화 후 각각 6.8일에 37.2 mL/g과 7.5일에 28.0 mL/g로 나타났다. 중온소화 시 메탄 함량은 보릿짚 및 유채대 투입율 5%로 혐기소화 후 각각 5.5일에 61.7%와 3.4일에 75.0%로 가장 높게 관측되었다. 중온 소화시 최대 메탄 잠재발생량은 1% 보릿짚 투입율에서 159.59 mL/g 와 3% 유채대 투입율에서 156.62 mL/g로 산정되었다. 전반적으로 중온소화 시 바이오매스 투입율은 유채대 3% 및 보릿짚 1%를 투입하는 것이 적정 비율인 것으로 나타났다. Objective of this experiment was to predict the potential methane production with crop residues at different loading rates. Anaerobic digestion of barley and rapeseed straw substrates for biogas production was performed in Duran bottles at various biomass loading rates with crop residues. Through kinetic model of surface methodology, the methane production was fitted to a Gompertz equation. For the biogas production at mesophilic digestion with crop residues, it was observed that maximum yield was 37.2 and 28.0 mL/g at 6.8 and 7.5 days after digestion with 1% biomass loading rates of barley and rapeseed straws, respectively. For the methane content of mesophilic digestion, there were highest at 61.7% after 5.5 days and 75.0% after 3.4 days of digestion with barley and rapeseed straw on both 5% biomass loading rates, respectively. The maximum methane production potentials were 159.59 mL/g for 1% barley straw and 156.62 mL/g for 3% rapeseed straw at mesophilic digestion. Overall, it would be strongly recommended that biomass loading rate was an optimum rate at mesophilic digestion for using 1% barley and 3% rapeseed straws for feed stocks.
-
원경연(Won, Kyung-Yoen),정태수(Jeong, Tae-Su),최원일(Choi, Won-Il),오경근(Oh, Kyeong-Keun) 한국신재생에너지학회 2009 한국신재생에너지학회 학술대회논문집 Vol.2009 No.11
Lignocellulosic biomass is the most abundant organic material on earth and also promising raw material for bioenergy production. Agricultural residues in the process of bio-oil extraction, is an abundant and low-cost lignocellulosic material. The technology for conversion of lignocellulosic biomass resources to fuels and chemicals, such as ethanol, has been under development for decades. One of the well-studied technologies that are currently being commercialized is to use a dilute acid-catalyzed pretreatment followed by enzymatic hydrolysis and fermentation to produce ethanol. In this work, the dilute-acid hydrolysis of agricultural residues was optimized through the utilization of statistical experimental design. Evaluation criteria for optimization of the pretreatment conditions were based on high xylose recovery and low inhibitor contents in the hydrolyzates. The purpose of this study was to gain a more accurate understanding of the quantities of acid required for effective hydrolysis and the reactivity trade-offs with reaction time and temperature that will enable overall process optimization.
-
Hydro-thermal Liquefaction Technology적용시유채대를이용한Crude oil생산에미치는반응온도의영향
신중두,홍승길,권순익,박우균,박상원 유기성자원학회 2010 유기물자원화 Vol.18 No.1
Hydro-thermal liquefaction technology for rapeseed straws was investigated the biomassconversion rate with different catalysts and reaction temperatures. NaOH and KOH were usedfor catalysts, and the reaction temperature were ranged from 180 to 320℃at every 20℃ofintervals for 10 minutes. The reaction was carried out in a 5,000 mL liquefaction system withdispenser and external electrical furnace. Raw materials (160g), 2,000 mL of distilled water and10% (wt/wt) of catalyst to plant residue were fed into the reactor. It was observed that themaximum crude oil yield was about 36% at temperature range, 260~280℃with KOH and at 300℃with NaOH, respectively. It was observed that the more calorific values of crude oil, thehigher reaction temperature with KOH, but it had the reverse pattern in NaOH. 본연구는hydrothermal 액화공정에서는유채대를사용하여액화공정적용시반응온도에따른Crude oil 전환효율을비교하였다. 촉매제로NaOH 및KOH와같은촉매제를사용하여반응온도180~320℃범위에서20℃간격으로10분동안반응시켰다. 액화공정시스템은외부전기화로, 교반기및5,000 mL의반응기로구성되어있다. 반응기에식물체잔사160g, 증류수2,000 mL 및촉매제를혼합하였으며, 촉매제량은식물체잔사량의10%(wt/wt)를투입하였다. Crude oil생산량은반응온도260~280℃에서약36%로나타났으며, NaOH의경우반응온도300℃에서전환효율이NaOH와비슷함을보였다. 촉매제별Crude oil에대한발열량변화는NaOH를사용한경우반응온도가증가함에따라발열량은감소하였지만, KOH의경우발열량은증가하는경향을보였다.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
