Browsing by Subject "Processos químics"

Now showing items 1-20 of 21

  • 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 ...

  • 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 ...

  • 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 ...

  • 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 ...

  • 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 ...

  • 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 ...

  • Optimització dels paràmetres d’un forn d’inducció per la conformació en estat semisòlid. 

    Galimany Castilla, Héctor (Universitat Politècnica de Catalunya, 2012-06-25)
    Master thesis (pre-Bologna period)
    Open Access
    Covenantee:  Centre de Disseny d’Aliatges Lleugers i Tractaments de Superfícies
    Actualment les empreses han d’innovar en noves tecnologies que permetin obtenir components amb una major qualitat a un cost de producció inferior degut a la gran competitivitat que existeix a nivell industrial, concretament ...

  • Optimización de la planta de in-line blending del poliuretano 

    Carraro, Matteo (Universitat Politècnica de Catalunya, 2013-07)
    Master thesis
    Restricted access - author's decision
    El objetivo de este trabajo es de optimizar el sistema del in-line blending (un nuevo sistema de coloración de polioles) de la planta de producción de poliuretano (PUR) de la empresa Bayer MaterialScience S.L. de Tarragona. Al ...

  • Progressive stirred freeze-concentration of ethanol-water solutions 

    Osorio, Manuel; Moreno Moreno, Fabián Leonardo; Raventós Santamaria, Mercè; Hernández Yáñez, Eduard; Ruiz Pardo, Ruth Yolanda (Elsevier, 2018-01-02)
    Article
    Open Access
    © 2017 Progressive freeze-concentration is a technology to separate water from solutions by freezing. In the present investigation, ethanol-water solutions were freeze-concentrated by the progressive stirred technique. The ...

  • Reverse osmosis membrane composition, structure and performance modification by bisulphite, iron(III), bromide and chlorite exposure 

    Ferrer, Olga; Gibert Agulló, Oriol; Cortina Pallás, José Luís (2016-10-15)
    Article
    Open Access
    Reverse osmosis (RO) membrane exposure to bisulphite, chlorite, bromide and iron(III) was assessed in terms of membrane composition, structure and performance. Membrane composition was determined by Rutherford backscattering ...

  • Seawater RO brine concentration by electrodialysis: modelling and preliminary results 

    Casas Garriga, Sandra; Aladjem, C; Cortina Pallás, José Luís; Larrotcha, E.; Cremades Oliver, Lázaro Vicente (2010)
    Conference lecture
    Restricted access - publisher's policy

  • Sequential dynamic optimization of complex nonlinear processes based on Kriging surrogate models 

    Shokry, Ahmed F.; Espuña Camarasa, Antonio (Elsevier, 2014)
    Conference report
    Restricted access - publisher's policy
    This paper presents a sequential dynamic optimization methodology applicable to solve the optimal control problem of complex highly nonlinear processes. The methodology is based on the use of kriging metamodels to obtain ...

  • Simulación de un sistema complejo de reacción 

    Duñó Giménez, Oriol (Universitat Politècnica de Catalunya, 2014-06-11)
    Bachelor thesis
    Restricted access - author's decision
    El present treball té com a objectiu la modelització d’una reacció fent servir el programa de modelització MATLAB®. En un primer estadi, simularé una reacció model A-B-C fixant les constants cinétiques de reacció. ...