TY - JOUR VL - 117 JF - Chemical Engineering Research and Design UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85006632119&doi=10.1016%2fj.cherd.2016.10.032&partnerID=40&md5=ee8fdc5bcc36a8b1b1ee499511589bc1 N1 - cited By 0 A1 - Ban, Z.H. A1 - Lau, K.K. A1 - Shariff, A.M. Y1 - 2017/// AV - none SP - 810 PB - Institution of Chemical Engineers EP - 830 ID - scholars9406 TI - In-line physical desorption unitâ??Part 2: Optimisation analysis KW - Computational fluid dynamics; Conceptual design; Design of experiments; Mass transfer; Nozzle design; Separators KW - Design parameters; Gas liquid separator; Objective functions; Offshore conditions; Optimisations; Physical solvent; Population balance modeling; Solvent velocities KW - Desorption SN - 02638762 N2 - This paper is the second part of our study on a novel in-line physical desorption unit. In the first part, the conceptual design and desorption modelling were discussed. In this paper, the work was extended to the optimisation and numerical analysis on the optimised desorption unit design. Similar to first part of our study, the desorption phenomenon was modelled via Computational Fluid Dynamics (CFD) approach. The desorption performance for seven different design parameters were studied and analysed via design of experiment (DOE) method. The objective functions were analysed and the suggested optimised design parameters were determined. Thereafter, the detailed hydrodynamics and mass transfer profile in the suggested optimised designs were simulated and studied. The performances of the optimised designs were found better than conventional nozzle. The solvent velocity at the outlet was found to be relatively high, which was ideal to be utilised together with compact gas liquid separator. The proposed in-line physical desorption unit has potential to be employed in various process conditions including remote and offshore conditions. © 2016 Institution of Chemical Engineers ER -