||Novel Designs for Ethylene Cold-end Separation using Conceptual Programming Technology
|| Shah, P.B., Kokossis, A.C.
||Computers and Chemical Engineering, vol.23, no.SUPPL. 1
||This paper explains the application of Conceptual Programming as a systematic approach to develop and generate promising flowschemes for sub-ambient processes. Conceptual Programming can be used to screen all simple and complex design options, optimise operating pressure and provide performance targets ahead of detailed simulations. A supertask representation of simple tasks and hybrids is postulated and formulated with the use of various shortcut methods. The mathematical formulation results into a mixed integer linear programming (MILP) problem. Results are presented for three different feed streams. The solutions include novel designs and feature prefractionators; sloppy splits and layouts reminding patented designs. The novel designs report 15% reduction in the total shaftwork over conventional designs. The approach uses minimum information and the development of the designs requires minimum effort. Indeed, there is an indication that the tool can be used to generate and develop ideas for patents of the new generation. © 1999 Elsevier Science Ltd.
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