http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Recycling of surfur using chelate absorption reactor
박영규,박영규 한국공업화학회 2015 한국공업화학회 연구논문 초록집 Vol.2015 No.0
Several experiments have done to investigate the removal of hydrogen sulfide(H2S) synthetic gas from biogas streams by means of chemical absorption and chemical reaction with 0.1M - 1M Fe/EDTA solution. The hydrogen sulfide of biogas was bubbled through an gas-lift column with Fe/EDTA resulting in the formation of sulfur particles. Wide range of optimal operating conditions were tested for both Fe/EDTA solution and the biogas, and the optimal ratio of Fe/EDTA concentration for efficient removal of hydrogen sulfide was found. The roles of Fe/EDTA were studied to enhance the removal efficiency of hydrogen sulfide because of oxidizing by Fe+3/EDTA. The motivation of this investigation is first to explore the feasibility of enhancing the toxic gas treatment in the biogas facility. The biogas purification strategy affords many advantages. For instance, the process can be performed under mild environmental conditions and at low temperature, and it removes hydrogen sulfide selectively. The end product of separation is elemental sulfur, which is a stable material that can be easily disposed of with minor potential for further pollution. The process to address over 90% removal efficiency of hydrogen sulfide does offer considerable advantages unrealized.
Reduction of H2S in anaerobic digestion of sewage wastes
박영규,박영규 한국공업화학회 2015 한국공업화학회 연구논문 초록집 Vol.2015 No.0
In order to make the best biogas production in the anaerobic fermentation, it is important to be able to compare the raw input materials on the basis of their sustainability, which may include a variety of environmental indicators. This study examined the comparative sustainability of renewable technologies in terms of their life cycle CO2 emissions andembodied energy, using life cycle analysis. The comparative results showed that power generation of bioenergy was associated with 0.96 kWh/m3 biogas and the reduction of CO2 emission is 2.1kg of CO2/kg Biomass. Other environmental indicators should be applied to gain a complete picture of the technologies studied. The generation of electricity is 2.07 kWh/m3 biogas in comparison with theoretical results of 3.09 kWh/m3 (efficiency of generator is 30%) based on the assumption of the removal efficiency 95% of CO2, methane conversion 100%, efficiency of generator 30%. Final results are the production of methane: 250 m3/day, production of electricity: 770kWh/day when used 5m3/day of waste.
박영규 한국문화공간건축학회 2002 한국문화공간건축학회논문집 Vol.- No.6
There are numerous overseas museums that display Korean cultural relics, with more than ten of them operating independent Korean exhibition hall. This is the result of elevated national image of Korea from hosting the Olympics Games and an extraordinary growth that the country has shown, in addition to the recognition that the Korean cultural assets do in fact have distinguishable differences from those of Chinese and Japanese. Those museums with Korean exhibition halls are, in most cases, of international scale and worldly known, and their displays involve operating the exhibition halls of international, including various Eastern, countries. While the overseas cultural relics possess strong decorative feelings, the Korean cultural relics possess very simplistic and sentimental moods, thus it requires special exhibition designs to embrace such moods. Accordingly, the design of the exhibition halls, where the Korean cultural assets are displayed, should reflect the images of Korea in order to assist with easy and better understanding of the relics. Rather than focusing on using the latest display cases, illuminating lights, or diverse display methods, the focus should be on selecting the right display method based on the characteristics of the exhibiting relic. Furthermore, the exhibition environment should focus on assisting the viewers to discover the inner artistic nature of the relics by displaying adequately small number of the items in composed and spacious halls.