Journal
CHEMICAL ENGINEERING SCIENCE
Volume 248, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ces.2021.117223
Keywords
Multi-contaminant Water Pinch Analysis; Process Integration; Material recycle; reuse; Network design for water recycling
Categories
Funding
- EU [CZ.02.1.01/0.0/0.0/15_003/000 0456]
- Czech Republic Operational Programme Research and Development, Education, Priority 1: Strengthening capacity for quality research, based on the SPIL project
- Universiti Technology Malaysia
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An extended targeting and synthesis procedure using the Pinch approach has been developed for material resource conservation networks with multiple contaminants, introducing a 'polygon' rule for representing source mixing feasibility and optimizing network design through sequential Pinch Analysis.
An extended targeting and synthesis procedure using the Pinch approach has been developed for material resource conservation networks with multiple contaminants (e.g. water recycling network with multiple constraints). The Sink and Source Composite Curves (CC) are constructed for each contaminant (load vs flowrate). In this work, a 'polygon' rule is introduced for the CCs representation that illustrates the feasibility of the source mixing. The Source CCs for all the contaminants have to be shifted at least until a 'polygon' is formed around the vertices of the Sink CCs, with lines represent the edges of the Source and Sink CCs. The framework first identifies a freshwater target for each sink with Pinch Analysis based on the pre-determined source arrangement. A condition for further reduction of the freshwater is then checked with the proposed algorithm. Pinch Analysis of each sink sequentially enables the freshwater target and the optimal network design with allocated sources flowrates to be determined. (c) 2021 Elsevier Ltd. All rights reserved.
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