Synthesis Method of Heat Exchanger Network for Distillation Device

Abstract:

Mathematical programming model for synthesis of heat exchanger network for distillation unit is established. MINLP problem for heat exchanger network is solved by branch-bound method. Two kinds of heat exchanger network with splitting stream and without splitting stream are obtained. 142 heat exchangers, 8 coolers and 4 heaters are needed in the heat exchanger network without splitting stream. 34 heat exchangers, 8 coolers, 4 heaters, 11 splitters and 11 mixers are needed in the heat exchanger network with splitting stream. The matching situation including heat load, heat exchange area, duty of utilities, flow fraction of splitting, temperature of inlet and outlet, etc. for cold and hot streams in the heat exchanger network with splitting stream is presented in detail, Analysis the relationship between total heat exchange area, total heat load, total capital cost and annual operation cost of the heat exchanger network. Taking the number of heat exchangers and operational flexibility of heat exchange network into consideration, the heat exchanger network with splitting stream is suggested to be selected.

• Periodical: Advanced Materials Research (Volumes 199-200)
• Pages: 1509-1512
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.199-200.1509
• Online since: February 2011
• Authors: Yu Lin Ge, Ping Wang, Sheng Qiang Shen, Jun Liang Xu
• Keywords: Distillation Unit, Heat Exchanger Network, Synthesis

References

[1] Bagajewicz M, Rodera H. Energy savings in the total site heat integration across many plants[J]. Computers and Chemical Engineering, 2000. 24: 1237-1242.

DOI: 10.1016/s0098-1354(00)00318-5

[2] Shivakumar K., Narasimhan S. A robust and efficient NLP formulation using graph theoretic principles for synthesis of heat exchanger networks[J]. Computers and Chemical Engineering, 2002. 26: 1517-1532.

DOI: 10.1016/s0098-1354(02)00089-3

[3] Barbaro A, Bagajewicz M. J. New rigorous one-step MILP formulation for heat exchanger network synthesis[J]. Computers and Chemical Engineering, 2005. 29: 1945-(1976).

DOI: 10.1016/j.compchemeng.2005.04.006

[4] Bjork k. M, Nordman R. Solving large-scale retrofit heat exchanger network synthesis problems with mathematical optimization methods[J]. Chemical Engineering and Processing, 2005. 44: 869-876.

DOI: 10.1016/j.cep.2004.09.005

[5] Ebrahim M, A L Kawari. Pinch technology: an efficient tool for chemical-plant energy and capital-cost saving[J]. Applied Energy, 2000. 65: 45-49.

DOI: 10.1016/s0306-2619(99)00057-4

[6] Ge Yulin, Shen Shengqiang. Methods of pinch analysis and mathematic programming applied in synthesis of heat exchanger network in a crude oil refinery. The 3rd International Conference on Cooling and Heating Technologies, 25-29 July, 2007, Tokyo, Japan.