Process systems engineering (PSE) has been an active research area for nearly seventy years and addresses multiple systems from the process industry. Among these are Process Supply Chains that can be described as interconnected sets of entities responsible for the sourcing, production and…
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When it was first introduced, the concept of sustainability in the forestry sector had a narrow focus on sustainable wood production. Since then, this concept has evolved and it now considers now the three sustainability dimensions (economic, environmental and social) of the whole forest wood supply…
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Life cycle assessment (LCA) is the most applied methodology to compare the environmental impacts of different products and processes. As uncertainty may be present in the first three steps of an LCA an uncertainty analysis should be considered allowing higher confidence in the results. However, few…
Continue ReadingSupply Chains (SC) have been facing a vast set of events that can endanger their operations and produce permanent damage, which are unknown until its occurrence. This led to an increased awareness of SC Resilience to deal with such SC uncertainty. This work uses a Mixed Integer Linear…
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Waste collection is nowadays an increasingly important business. However, it is often an inefficient operation due to the high uncertainty associated with the real waste bins’ fill-levels. To deal with such uncertainty the use of sensors to transmit real time information is seen as possible solution. But, in…
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This paper addresses the operation of a unidirectional multiproduct pipeline system integrated with inventory tanks management at the refinery and distribution center. A Mixed Integer Linear Programming (MILP) formulation is proposed to model the scheduling of a pipeline operation…
Continue ReadingWhile planning to expand its tissue paper business, a Portuguese company aims to explore options regarding the design and planning of its supply chain accounting not only for economic objectives but also environmental and social concerns (the three pillars of sustainability). A multi-objective mixed…
Continue ReadingSustainability is more than ever a central concern when deciding a company’s strategy. Stakeholders are continuously pressuring industries to further reduce their environmental impact. In order to achieve that, it is imperative to look for solutions across all of the company’s operations adopting a supply…
Continue ReadingCompanies are continuously being pressured by governments, customers and NGOs to become environmentally sustainable. In the process industries this is a very important problem since the environmental impacts are often very significant. Although the assessment of the environmental…
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This work explores the problem of optimizing batch processes’ retrofit design pursuing an increase of production efficiency and efficacy while accounting for the associated processes’ sustainability, aspect that within the process industry is nowadays of increasing concern. Batch processes are often…
Continue ReadingSupply sChains (SC) have appeared for the first time in the literature more than thirty years ago. Since then the Supply Chains Management area has grown considerably at both research and industrial levels and SC are nowadays underpinning systems of any organization. In its classical form supply…
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In order to reduce the effects of water pollution by anthropogenic causes, it is critical to use wastewater treatment plants networks (WWTNs) as an option to remove contaminants that are considered harmful to human health (Bagajewicz and Faria, 2009). These systems are also a…
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A Mixed Integer Linear Programming model for the design and planning of green supply chains is developed. Strategic and tactical decisions are taken, namely on facility location and capacity installation, supplier selection, technology selection, transportation network definition, supply…
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