KAIST and Korean Company cooperative research team has developed the technology that increases the productivity of bio-butanol to equal that of bio-ethanol and decreases the cost of production. Professor Lee Sang Yeop (Department of Biological-Chemical Engineering) collaborated with GS Caltex and BioFuelChem Ltd. to develop a bio-butanol production process using the system metabolism engineering method that increased the productivity and decreased the production cost. Bio-butanol is being widely regarded as the environmentally friendly next generation energy source that surpasses bio-ethanol.
The energy density of bio-butanol is 29.9MJ (mega Joule) per Liter, 48% larger than bio-ethanol (19.6MJ) and comparable to gasoline (32MJ). Bio-butanol is advantageous in that it can be processed from inedible biomass and is therefore unrelated to food crises.
Especially because bio-butanol shows similar characteristics especially in its octane rating, enthalpy of vaporization, and air-fuel ratio, it can be used in a gasoline engine.
For full article see KAIST.
A Korean scientist has developed an indigenous technology to produce bio oil from only wood scraps that can be put to commercial use in the near future, a state research center said Thursday.
Such a technology already exists and is in use in other countries, but the new, indigenous technology will prove to be equally efficient and less expensive, according to the Korea Institute of Machinery and Materials (KIMM).
A prototype plant, developed by KIMM researcher Choi Yeon-seok, produces 9 kilograms of bio-crude oil per hour, using only 15 kilograms of sawdust.
For full article see Korea Times.