Affiliation: | (1) Department of Chemical Engineering, Hanyang University, 133-791 Seoul, Korea;(2) Honam Petrochemical Co., Ltd., Yeocheon, 555-805 Chunnam, Korea;(3) Korea Institute of Science and Technology, 136-791 Seoul, Korea;(4) Dept. of Chemical Eng., Chungbuk National Univ., 361-763 Chungbuk, Korea |