Now showing items 1-20 of 30

    • A machine learning-based methodology for multi-parametric solution of chemical processes operation optimization under uncertainty 

      Shokry Abdelaleem Taha Zied, Ahmed; Medina González, Sergio; Baraldi, Piero; Zio, Enrico; Moulines, Eric François Victor; Espuña Camarasa, Antonio (Elsevier, 2021-12-01)
      Article
      Open Access
      Chemical process operation optimization aims at obtaining the optimal operating set-points by real-time solution of an optimization problem that embeds a steady-state model of the process. This task is challenged by ...
    • A modeling strategy for integrated batch process development based on mixed-logic dynamic optimization 

      Moreno Benito, Marta; frankl, kathrin; Espuña Camarasa, Antonio; Marquardt, Wolfgang (Pergamon Press, 2016-11-02)
      Article
      Open Access
      This paper introduces an optimization-based approach for the simultaneous solution of batch process synthesis and plant allocation, with decisions like the selection of chemicals, process stages, task-unit assignments, ...
    • Articulació i coordinació d'un Màster d'Enginyeria de Processos 

      Mateu Herrador, Ferran (Universitat Politècnica de Catalunya, 2007-05)
      Master thesis (pre-Bologna period)
      Open Access
      En aquest projecte s’ha articulat i coordinat la infrastructura d’un Màster d’Enginyeria de Processos Químics dins l’Espai Europeu d’Educació Superior (EEES), que com a tal s’ha adaptat a la normativa vigent en aquest ...
    • Avaluació de la recuperació de coure d'un lixiviat mitjançant el procés de cementació 

      Orriols Cortada, Lídia (Universitat Politècnica de Catalunya, 2019-07)
      Bachelor thesis
      Restricted access - author's decision
      La societat actual cada vegada té una dependència més gran als telèfons mòbils, tauletes, ordinadors... Sense deixar de banda que l’edat dels consumidors cada cop és inferior, i per tant, cada vegada hi ha més població ...
    • Chemical processing routes based on reaction pathways 

      Bertran Subirana, Maria-Ona (Universitat Politècnica de Catalunya / Denmarks Tekniske Universitet, 2013)
      Bachelor thesis
      Open Access
      Covenantee:   Danmarks tekniske universitet
      The integration of reaction and separation tasks in one process unit represents a potential advantage for overcoming reaction limitations, such as reaction equilibrium. The design of reactive separation units based on ...
    • Data-based fault detection in chemical processes: Managing records with operator intervention and uncertain labels 

      Askarian, Mahdieh; Benítez Iglesias, Raúl; Graells Sobré, Moisès; Zarghami, Reza (2016-06-23)
      Article
      Open Access
      Developing data-driven fault detection systems for chemical plants requires managing uncertain data labels and dynamic attributes due to operator-process interactions. Mislabeled data is a known problem in computer science ...
    • Development of a prototype for automatic translation of chemical processes simulation cases from different software vendors 

      Padilla Ibáñez, Alexandre (Universitat Politècnica de Catalunya, 2019-02-05)
      Bachelor thesis
      Restricted access - author's decision
      In this end-of-degree project, the prototype of a program has been developed, which is capable of converting simulation cases created in the chemical process simulator Aspen HYSYS, to cases that can be used in another ...
    • Diseño de un reactor agitado para poliestireno en masa 

      Capón García, José Luis (Universitat Politècnica de Catalunya, 2009-06)
      Master thesis (pre-Bologna period)
      Open Access
      El objetivo de este proyecto es el diseño de un reactor para la polimerización parcial de estireno integrado dentro de un proceso continuo de producción de poliestireno cristal. El proyecto incluye el diseño mecánico de ...
    • Dynamic surrogate modelling for multistep-ahead prediction of multivariate nonlinear chemical processes 

      Shokry Abdelaleem Taha Zied, Ahmed; Baraldi, Piero; Zio, Enrico; Espuña Camarasa, Antonio (American Chemical Society (ACS), 2020-07-30)
      Article
      Open Access
      This work proposes a methodology for multivariate dynamic modeling and multistep-ahead prediction of nonlinear systems using surrogate models for the application to nonlinear chemical processes. The methodology provides a ...
    • Estandarització del procés de producció de Metoprolol segons l'ISA-88 

      Gala Lima, Raúl (Universitat Politècnica de Catalunya, 2022-07-04)
      Bachelor thesis
      Restricted access - author's decision
      Covenantee:   Mohes Catalana
      A l’empresa Moehs Catalana es troben iniciant la l’evolució dels processos de fabricació dels seus productes. Aquesta evolució consisteix en l’automatització de processos químics mitjançant Software proporcionat per l’empresa ...
    • Evaluation of a lime-mediated sewage sludge stabilisation process. Product characterisation and technological validation for its use in the cement industry 

      Flores, J.; Larrotcha, E.; Fos, C.; Husillos Rodríguez, N.; Granados, R.J.; Blanco Varela, M.Teresa; Cortina Pallás, José Luís; Martínez Ramírez, Sagrario; Marsal Astort, Montserrat; Guillem, Manel; Puig, J. (2012-03)
      Article
      Restricted access - publisher's policy
      This paper describes an industrial process for stabilising sewage sludge (SS) with lime and evaluates the viability of the stabilised product, denominated Neutral, as a raw material for the cement industry. Lime not only ...
    • Experimental and computational study of agitated vessels 

      Artero Beltran, Lara (Universitat Politècnica de Catalunya, 2012)
      Bachelor thesis
      Restricted access - author's decision
      The fluid flow in an agitated tank has been studied in a laboratory vessel and using computational fluid dynamics (commonly known as CFD). The investigation has been focused on power draw measurements at different rotational ...
    • Experimental and modeling studies on biodiesel production and refining in a dedicated bench scale unit 

      Fernández Martínez, Alberto (Universitat Politècnica de Catalunya, 2013-06)
      Master thesis (pre-Bologna period)
      Open Access
      Continuous production and refining of biodiesel (FAME) using a lab bench scale unit was explored. The unit consist of three major units i) a reactor consisting of a Continuous Centrifugal Contactor Separator (CCCS), ii) a ...
    • Fly ash as reactive sorbent for phosphate removal from treated waste water as a potential slow release fertilizer 

      Hermassi, Mehrez; Valderrama Angel, César Alberto; Moreno Palmerola, Natalia; Font Piqueras, Oriol; Querol Carceller, Xavier; Batis, Narjes; Cortina Pallás, José Luís (2017-02-01)
      Article
      Open Access
      There is interest in recovering phosphate (P(V)) from secondary sources, such as waste water streams for potential use as fertilizers reducing the environmental impacts of P(V) discharges and providing alternative phosphorus ...
    • Hybrid sorption and pressure-driven membrane technologies for organic micropollutants removal in advanced water reclamation: A techno-economic assessment 

      Echevarría Díez-Canedo, Carlos; Valderrama Angel, César Alberto; Cortina Pallás, José Luís; Arnaldos, Marina; Bernat Camí, Xavier; De la Cal, Agustina; Boleda, Maria Rosa; Vega, Àlex; Teuler, Albert; Castellví, E. (2020-11-10)
      Article
      Open Access
      The persistence of certain organic-micropollutants (OMP) in conventional wastewater and reclamation treatments represents a growing concern due to its associated uncertain effects on human health and the environment. This ...
    • Incorporating online scheduling strategies in integrated batch-production control 

      Huercio Berenguer, Albert; Espuña Camarasa, Antonio; Puigjaner Corbella, Lluis (Pergamon Press, 1995)
      Article
      Restricted access - publisher's policy
      Given a set of product recipes, the main goal of production scheduling is to attain an optimal solution which satisfies the market demand taking into account a variety of constraints and specific policies. Thus, a schedule ...
    • Integrating process dynamics within batch process scheduling via mixed-integer dynamic optimization 

      Capón García, Elisabet; Guillén Gosálbez, Gonzalo; Espuña Camarasa, Antonio (2013-10)
      Article
      Restricted access - publisher's policy
      During batch process scheduling, products' batch size, processing conditions as well as operating times are usually established offline and considered out of the scope of the decision making stage. In practice, process ...
    • Modelització d’un procés combinat físico-químic-biològic mitjançant software ASPEN Plus 

      Borràs González, Joel (Universitat Politècnica de Catalunya, 2019-10-22)
      Bachelor thesis
      Restricted access - author's decision
      En els processos de combustió de combustibles fòssils es generen diferents gasos depenent dels productes que s’estiguin cremant, però hi ha dos d’ells que, pel fet de ser molt comuns a les combustions i per ser altament ...
    • Molècules en acció : del big bang als materials del futur 

      Duran, Xavier (Universitat Politècnica de Catalunya, 2010)
      Book
      Restricted access to UB, UAB, UPC, UPF, UdG, UdL, URV, UOC, BC, UVic, UJI, URL, UIC users
      L'origen de la vida, la forma com els animals s'atreuen o com les plantes es defensen, els mecanismes del càncer, les addiccions, la composició dels pigments de les obres d'art, la forma d'obtenir vehicles més segurs, ...
    • Nitrogen removal and Phosphorus recovery by USB and chemical precipitation process 

      Esguerra Laudo, Lara (Universitat Politècnica de Catalunya / Nagaoka University of Technology, 2010)
      Master thesis (pre-Bologna period)
      Restricted access - author's decision
      Large quantities of nutrients in aquatic environment, such as nitrates and phosphates can lead to eutrophication. Two important sources of those nutrients are wastewater effluent and untreated sewage. The contribution ...