HEN OPTIMISATION FOR CRUDE OIL DISTILLATION UNIT A dissertation submitted to the University of Manchester of Science and Technology For the degree of MSc. in the Department of Process Integration Written by Azlin Suhaida Azmi Under the supervision of Dr. Jiri Klemes Department of process Integration University of Manchester Institute of Science and Technology Sackville Street, P.O. Box 88 Manchester, M60 IQD PUSAT SUM!BR MAKLUMAT UNIYBilSltl TBKNOJ.OGI PllTRONAS IPB176922