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23 European Symposium on Computer Aided Process Engineering

23 European Symposium on Computer Aided Process Engineering
  • Author : Michele Mattei
  • Publsiher : Elsevier Inc. Chapters
  • Release : 10 June 2013
  • ISBN : 0128086351
  • Pages : 1088 pages
  • Rating : 4/5 from 21 ratings
GET THIS BOOK23 European Symposium on Computer Aided Process Engineering

Summary:
An extended systematic methodology for the design of emulsion-based chemical products is presented. The methodology consists of a model-based framework involving seven sequential hierarchical steps: starting with the identification of the needs to be satisfied by the product and then adding one-by-one the different classes of chemicals, until a formulation is obtained, the stability of which as en emulsion is finally checked with appropriate models. Structured databases, appropriate pure component as well as mixture property models, rule-based selection criteria and CAMD techniques are employed together to obtain one or more candidate formulations. A conceptual case-study representing a personal detergent is presented to highlight the methodology.


23 European Symposium on Computer Aided Process Engineering

23 European Symposium on Computer Aided Process Engineering
  • Author : Michele Mattei,Michael Hill,Georgios M. Kontogeorgis,Rafiqul Gani
  • Publisher : Elsevier Inc. Chapters
  • Release : 10 June 2013
GET THIS BOOK23 European Symposium on Computer Aided Process Engineering

An extended systematic methodology for the design of emulsion-based chemical products is presented. The methodology consists of a model-based framework involving seven sequential hierarchical steps: starting with the identification of the needs to be satisfied by the product and then adding one-by-one the different classes of chemicals, until a formulation is obtained, the stability of which as en emulsion is finally checked with appropriate models. Structured databases, appropriate pure component as well as mixture property models, rule-based selection criteria and


23rd European Symposium on Computer Aided Process Engineering

23rd European Symposium on Computer Aided Process Engineering
  • Author : Anonim
  • Publisher : Elsevier
  • Release : 10 June 2013
GET THIS BOOK23rd European Symposium on Computer Aided Process Engineering

Computer-aided process engineering (CAPE) plays a key design and operations role in the process industries, from the molecular scale through managing complex manufacturing sites. The research interests cover a wide range of interdisciplinary problems related to the current needs of society and industry. ESCAPE 23 brings together researchers and practitioners of computer-aided process engineering interested in modeling, simulation and optimization, synthesis and design, automation and control, and education. The proceedings present and evaluate emerging as well as established research methods and


23 European Symposium on Computer Aided Process Engineering

23 European Symposium on Computer Aided Process Engineering
  • Author : Matylda Jabłońska,Robert Sitarz,Andrzej Kraslawski
  • Publisher : Elsevier Inc. Chapters
  • Release : 10 June 2013
GET THIS BOOK23 European Symposium on Computer Aided Process Engineering

The increasing costs of research and the decreasing lifetime of products and processes make the decisions on allocation of R&D funds strategically important. Therefore, ability to predict research trends is crucial in minimizing risks of R&D expenditure planning. The purpose of this paper is to propose a model for efficient prediction of research trends in a chosen branch of science. The approach is based on population dynamics with Burgers' type global interaction and selective neighborhood. The model is


23 European Symposium on Computer Aided Process Engineering

23 European Symposium on Computer Aided Process Engineering
  • Author : Alireza Hosseini,Milad Oshaghi,Sebastian Engell
  • Publisher : Elsevier Inc. Chapters
  • Release : 10 June 2013
GET THIS BOOK23 European Symposium on Computer Aided Process Engineering

In this paper, a new control strategy that employs a mid-course correction to control the particle size distribution in emulsion polymerization is developed. In this approach, online and infrequent measurements are used to obtain the states of the system at the mid-course of the process. Then an optimization is performed to obtain the optimal trajectory of the input from the mid-course up to the end of the process. For this optimization, a hybrid model is used. This hybrid model consists


23 European Symposium on Computer Aided Process Engineering

23 European Symposium on Computer Aided Process Engineering
  • Author : Nor Alafiza Yunus,Krist V. Gernaey,John M. Woodley,Rafiqul Gani
  • Publisher : Elsevier Inc. Chapters
  • Release : 10 June 2013
GET THIS BOOK23 European Symposium on Computer Aided Process Engineering

This paper presents a systematic methodology for designing blended products consisting of three stages; product design, process identification and experimental verification. The product design stage is considered in this paper. The objective of this stage is to screen and select suitable chemicals to be used as building blocks in the mixture design, and then to propose the blend formulations that fulfill the desired product attributes. The result is a set of blends that match the constraints, the compositions, values of


23 European Symposium on Computer Aided Process Engineering

23 European Symposium on Computer Aided Process Engineering
  • Author : Vasile-Mircea Cristea,Elisabeta-Cristina Ani,Paul Serban Agachi
  • Publisher : Elsevier Inc. Chapters
  • Release : 10 June 2013
GET THIS BOOK23 European Symposium on Computer Aided Process Engineering

Based on a previously developed dynamic simulator, aimed to predict the distribution of a pollutant accidental discharge in a river segment, the present work investigated the way automatic measures may be implemented for counteracting their negative effects. The complex time and space distribution of the pollutant concentration in the downstream region of the pollutant release is revealed by the k-ε turbulence model of the flow, associated to the convection-diffusion-reaction processes. This information is used by the model based predictive control


23 European Symposium on Computer Aided Process Engineering

23 European Symposium on Computer Aided Process Engineering
  • Author : Sebastian Recker,Nimet Kerimoglu,Andreas Harwardt,Olga Tkacheva,Wolfgang Marquardt
  • Publisher : Elsevier Inc. Chapters
  • Release : 10 June 2013
GET THIS BOOK23 European Symposium on Computer Aided Process Engineering

Reliable models for rate-based phenomena are the backbone of model-based process design. These models are often unknown in the early design phase and need to be determined from laboratory experiments. Although model-based experimental analysis and process design are often executed sequentially, the kinetic models might not be suitable to reliably design a process. In this paper, we address this problem and present a first step on the integration of model identification and process optimization. Rather than decoupling model identification and


23 European Symposium on Computer Aided Process Engineering

23 European Symposium on Computer Aided Process Engineering
  • Author : Georgios M. Kopanos,Efstratios N. Pistikopoulos
  • Publisher : Elsevier Inc. Chapters
  • Release : 10 June 2013
GET THIS BOOK23 European Symposium on Computer Aided Process Engineering

This work introduces a methodology for the solution of reactive scheduling problems in small-scale fuel cell systems that cogenerate heat and power. The proposed approach successfully transforms the on-line optimization problem into a closed-loop control problem. In brief, a multiparametric programming problem is formulated and solved once and off-line, and afterwards a receding horizon-like approach is applied for the online scheduling by performing just function evaluations and avoiding on-line optimization. The proposed concept is promising and extensions can involve: large-scale


23 European Symposium on Computer Aided Process Engineering

23 European Symposium on Computer Aided Process Engineering
  • Author : Nikolaos Trokanas,Tara Raafat,Franjo Cecelja,Antonis Kokossis
  • Publisher : Elsevier Inc. Chapters
  • Release : 10 June 2013
GET THIS BOOK23 European Symposium on Computer Aided Process Engineering

This paper proposes an ontological framework to support Industrial Symbiosis (IS) operation. The framework exploits semantic knowledge modeling and enables structural data transformation for identification of potential synergies between various industries and hence formation of one to one and complex symbiotic networks.


23 European Symposium on Computer Aided Process Engineering

23 European Symposium on Computer Aided Process Engineering
  • Author : Mayank Shah,Anton A. Kiss,Edwin Zondervan,André B. de Haan
  • Publisher : Elsevier Inc. Chapters
  • Release : 10 June 2013
GET THIS BOOK23 European Symposium on Computer Aided Process Engineering

This study explores the best suitable internals and various feed configurations of a reactive distillation process for unsaturated polyester synthesis. Multi-product simulations were performed to find the operational parameters for producing different grades of polyester in the same equipment. The product transition time during product changeover is determined for various configurations and product grades. The selection criteria for the best configuration are the minimum requirements of volume and energy to produce 100 ktpy polyesters. The results of the rigorous simulations carried


23 European Symposium on Computer Aided Process Engineering

23 European Symposium on Computer Aided Process Engineering
  • Author : Elisabet Capón-García,Stavros Papadokonstantakis,Konrad Hungerbühler
  • Publisher : Elsevier Inc. Chapters
  • Release : 10 June 2013
GET THIS BOOK23 European Symposium on Computer Aided Process Engineering

This work presents a multi-period waste management multi-objective optimization, considering economic and environmental issues. The specific behavior of the considered waste management treatments is included in the optimization problem as black-box models based on practical industrial practice computing utility requirements and emissions. To achieve more realistic solutions, the estimation of waste treatment costs and environmental impacts has been explicitly added to the assessment scheme, as well as the constraints of the operating conditions in the treatment units and the fulfillment


23 European Symposium on Computer Aided Process Engineering

23 European Symposium on Computer Aided Process Engineering
  • Author : Johannes Jung,Niklas von der Assen,André Bardow
  • Publisher : Elsevier Inc. Chapters
  • Release : 10 June 2013
GET THIS BOOK23 European Symposium on Computer Aided Process Engineering

Environmental process design methods often incorporate life-cycle assessment (LCA) as a deterministic black-box methodology. However, LCA suffers from several sources of ambiguity and uncertainty. These limitations are particularly severe for the multi-functional processes typical for the chemical industry. This work introduces a rigorous uncertainty assessment framework. The framework quantifies data uncertainties and also uncertainties that result from fixing multi-functionality in LCA by allocation. The method is derived from a matrix-framework for LCA and applied to a comparison of alternative chlorine


23 European Symposium on Computer Aided Process Engineering

23 European Symposium on Computer Aided Process Engineering
  • Author : Lige Sun,Iiro Harjunkoski,Pedro Castro
  • Publisher : Elsevier Inc. Chapters
  • Release : 10 June 2013
GET THIS BOOK23 European Symposium on Computer Aided Process Engineering

In today's energy markets there is a growing effort in the alignment of the industrial sector to the power grid for the sake of efficient energy distribution and consumption. The steel making industry, as one of the most energy-intensive stakeholders, may play an important role in this context. In this paper, we use the Resource Task Network (RTN) in order to provide a generic modeling framework for scheduling problems under energy constraints. We study the impact of fluctuating electricity prices


23 European Symposium on Computer Aided Process Engineering

23 European Symposium on Computer Aided Process Engineering
  • Author : Agustín F. Montagna,Diego C. Cafaro,Jaime Cerdá
  • Publisher : Elsevier Inc. Chapters
  • Release : 10 June 2013
GET THIS BOOK23 European Symposium on Computer Aided Process Engineering

Among the refined petroleum products obtained in an oil refinery, gasoline contributes with more than half of the total profits. This work is focused on the last stage of the gasoline processing in which different "cuts" are blended together with additives and oil fractions in order to fulfill customers' demands with the right product at the right time. The short-term planning of these operations becomes a complex task due to the need of managing a large number of orders, delivery


23 European Symposium on Computer Aided Process Engineering

23 European Symposium on Computer Aided Process Engineering
  • Author : Felipe D. Sepulveda,Luis A. Cisternas,Edelmira D. Gálvez
  • Publisher : Elsevier Inc. Chapters
  • Release : 10 June 2013
GET THIS BOOK23 European Symposium on Computer Aided Process Engineering

In mineral processing, the recovery and/or concentration of the value components cannot occur in one operational stage, necessitating the use of separation circuits. The component to be separated is usually distributed at different concentrations and different particle sizes, resulting in different levels of recovery in terms of the particle size and concentration. Typically, more than one value component must be selectively removed by exploiting the differences in the components' floatability at different values of the pH, pulp potential and