• Korean Chemical Engineering Research
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• v.45 no.1
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• pp.52-56
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• 2007

Though a reactive distillation column reduces energy requirement and gives easy separation of azeotropic mixture to result in wide practical applications in field, its design is difficult. On the other hand, a commercial design software used largely in chemical process design and performance evaluation can solve the problem, but the addition of reaction into the tray is not simple. In this study the addition is implemented to make the process simulation available, and it is utilized in the design of a TAME process to find the following design guidelines. The addition of reactive trays gives more composition elevation than the composition decrease from the reduction of the trays, and the increase of non-reactive trays does not improve product quality. The elevation of reboiler heat duty lowers the product quality by the reduction of residence time in reactive tray and conversion.

• Archives of design research
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• v.17 no.2
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• pp.241-252
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• 2004

The purpose of this study is to ascertain the material design element in traditional palaces among those in the neighboring three nations of East Asia, notably Korea, China and Japan. Undoubtedly the ultimate goal to be pursued has to be inquiry into the identical prototype of Korean material design element. The cultures of East Asia, finely balanced between survival and extinction, sought to tame the natural world. They transformed its raw materials so as to more convenient human life. In this study, the material of the traditional palace is characterized by the actual use. It is to be noticed that the mainly common characteristics of the material is naturalism'. That is, the kind of material is differed from the country - marble or granite, nanmu or cypress -, the East Asian countries have similarity and make use of their own native materials. The typical features of China are glassy surface by artificial process, the meandered curve. In Japan, made-up rough surface by artificial skill. While the major features of Korean material design element are rough surface by natural process.