A novel step-by-step optimization method for interplant water networks

Lv, Zhuming; Song, Yun S.; Chen, Chen; Jiang, Bin; Sun, Hao; Lyu, Zeyu

doi:10.1016/j.jenvman.2018.02.061

Cited by 13 publications

(12 citation statements)

References 21 publications

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“…These shared resources can be different streams of material and energy. An application of enterprise-wide optimization to shared resource networks is presented by Lv et al (2018) who optimize an interplant fresh water network. In Khor et al (2014) an extensive review on the optimization of water networks can be found.…”

Section: Mi(n)lp For Site-wide Optimization and Shared Resource Allocmentioning

confidence: 99%

An optimization model for site-wide scheduling of coupled production plants with an application to the ammonia network of a petrochemical site

et al. 2019

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This contribution presents the modeling and optimization of the operation of production plants that are coupled via distribution networks and applies it to a part of the petrochemical production site of INEOS in Köln in Germany. The problem is formulated as a mixed-integer linear problem and solved to generate an optimal monthly plan for a set of plants, tanks, and loading/unloading facilities, while respecting various constraints arising from technical limitations, physical couplings between the plants, production targets, and the schedule for import and export across the company borders via ships and trains. The optimization problem takes into account varying energy prices, the influence of the ambient temperature on the processes, and the inventory management for different types of storages. We solve the optimization problem for the particular case and compare the results for a 1 month scenario to recorded data and show that a significant energy saving potential exists. We discuss the current limitations and outline potential improvements in the context of the application of the optimization model to optimal site planning that leads to an improved coordination of the production in the process industries.

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Section: Mi(n)lp For Site-wide Optimization and Shared Resource Allocmentioning

confidence: 99%

An optimization model for site-wide scheduling of coupled production plants with an application to the ammonia network of a petrochemical site

et al. 2019

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“…Jiang et al 13 presented a superstructure-based mathematical model applicable to water network optimization in industrial parks. Lv et al 14 presented a nonlinear simplified model for a complex water network composed of multiple factories and carried out sequential optimization. Alnouri et al 15 adopted an NLP model to optimize the interplant water network considering regeneration with economic cost as the optimization objective.…”

Section: ■ Introductionmentioning

confidence: 99%

Optimal Targets of Two Parallel Regeneration Recycling Water Networks

Ding

Feng

et al. 2021

ACS Sustainable Chem. Eng.

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Water system integration plays an important role in industrial freshwater saving and wastewater reduction. Compared with the traditional one-stage regeneration recycling water network, a two-stage regeneration recycling water network can effectively reduce the regeneration cost on the basis of keeping the freshwater consumption and wastewater discharge unchanged. In this paper, a graphical approach is used to study the two parallel regeneration recycling water networks with a single contaminant to obtain the optimal targets, which are the optimal flow rates (freshwater and two regenerated water) and the two optimal regeneration concentrations. The calculation formulas of each optimal target for all possible relative regeneration concentration relationships are deduced from the water pinch graph, and further, the construction method of the unified problem table is proposed. The analysis by the graphical method shows the optimal flow rate targets are fixed and have nothing to do with the relative size of the two regeneration concentrations, but the optimal regeneration concentrations are related to the relative size. Finally, two case studies are used to verify the conclusions.

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“…Chen et al 17 explored cost-effective options for indirect integration by using centralized (common for all plants) and decentralized (within each plant) hubs for wastewater transfer. Lv et al 18 increased interconnections through direct integration and increased fresh water through indirect integration, Lovelady and El-Halwagi 19 combined both these strategies to provide an improved solution. Lovelady et al 20 extended this integration scheme for property integration in a resource conservation network.…”

Section: Introductionmentioning

confidence: 99%

“…explored cost-effective options for indirect integration by using centralized (common for all plants) and decentralized (within each plant) hubs for wastewater transfer. Lv et al introduced several centralized hubs and developed a stepwise linear programming (LP) strategy to minimize the cost. Due to the increased interconnections through direct integration and increased fresh water through indirect integration, Lovelady and El-Halwagi combined both these strategies to provide an improved solution.…”

Section: Introductionmentioning

confidence: 99%

Bi-Objective Optimization of Interplant Integration Using Pinch Analysis

Kamat

Chokhani

Bandyopadhyay

2019

Ind. Eng. Chem. Res.

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Water scarcity has led process industries to seek measures, such as in-plant and interplant recovery, for its efficient utilization. While considering interplant integration, mere water conservation can incur substantial investment cost due to a large number and distance of pipelines required as well as pumping costs associated with interplant flows. The interplant flow, and hence the costs associated with it, can be reduced by adding some amount of fresh water. The primary objective of this study is to explore the trade-offs between fresh water consumption and the interplant flow. A novel method, based on the extensions of Pinch analysis, is developed to accurately capture the trade-offs through Pareto optimal solutions. The graphical and algebraic nature of the developed technique provides efficient solutions with enhanced visualization. The method is illustrated through examples of water and hydrogen allocation networks.

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A novel step-by-step optimization method for interplant water networks

Cited by 13 publications

References 21 publications

An optimization model for site-wide scheduling of coupled production plants with an application to the ammonia network of a petrochemical site

An optimization model for site-wide scheduling of coupled production plants with an application to the ammonia network of a petrochemical site

Optimal Targets of Two Parallel Regeneration Recycling Water Networks

Bi-Objective Optimization of Interplant Integration Using Pinch Analysis

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