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On the last years, there have been proposals for using supercritical conditions to produce biodiesel fuel from vegetable oils and/or animal fats without a catalyst. Different schemes have been proposed, the most popular consisting on the use of supercritical methanol as reactant. Other alternatives involve the use of methyl acetate or acetic acid as reactants. The potential of those processes may be established in terms of their total annual cost and environmental impact. Thus, in this work, the production of biodiesel fuel by using different reactants is studied. Four processes are considered: the one step supercritical methanol process (Saka process), the two steps supercritical methanol p...
Abstract: "Interior point methods have recently become an interesting alternative in a number of numerical applications. In particular, their performance in the solution of problems involving complementarity equations has been the subject of extensive research and their efficacy is well documented. In this paper, following a description of the fundamentals of interior point methods, we describe the globally convergent framework proposed by Wang et al (1996) for solving a constrained system of nonlinear equations by an interior point potential reduction method. Also, we show how we can apply the potential reduction algorithm and its convergence result to the complementarity formulation described in Rico-Ramirez and Westerberg (1998). Based on that observation, we then apply the algorithm proposed by Wang to solve the complementarity examples used as case studies throughout this work. Moreover, we also apply some high order strategies designed to improve convergence (Mehrotra, 1992; Gondzio, 1996), and compare the results obtained with each of the methods. All those techniques have been incorporated to the ASCENT modeling environment with the implementation of the solver IPS1v."
Computer aided process engineering (CAPE) plays a key design and operations role in the process industries. This conference features presentations by CAPE specialists and addresses strategic planning, supply chain issues and the increasingly important area of sustainability audits. Experts collectively highlight the need for CAPE practitioners to embrace the three components of sustainable development: environmental, social and economic progress and the role of systematic and sophisticated CAPE tools in delivering these goals. Contributions from the international community of researchers and engineers using computing-based methods in process engineering Review of the latest developments in process systems engineering Emphasis on a systems approach in tackling industrial and societal grand challenges
The European Symposium on Computer Aided Process Engineering (ESCAPE) series presents the latest innovations and achievements of leading professionals from the industrial and academic communities. The ESCAPE series serves as a forum for engineers, scientists, researchers, managers and students to present and discuss progress being made in the area of computer aided process engineering (CAPE). European industries large and small are bringing innovations into our lives, whether in the form of new technologies to address environmental problems, new products to make our homes more comfortable and energy efficient or new therapies to improve the health and well being of European citizens. Moreover, the European Industry needs to undertake research and technological initiatives in response to humanity's "Grand Challenges," described in the declaration of Lund, namely, Global Warming, Tightening Supplies of Energy, Water and Food, Ageing Societies, Public Health, Pandemics and Security. Thus, the Technical Theme of ESCAPE 21 will be "Process Systems Approaches for Addressing Grand Challenges in Energy, Environment, Health, Bioprocessing & Nanotechnologies."
ESCAPE-20 is the most recent in a series of conferences that serves as a forum for engineers, scientists, researchers, managers and students from academia and industry to present and discuss progress being made in the area of "Computer Aided Process Engineering" (CAPE). CAPE covers computer-aided methods, algorithms and techniques related to process and product engineering. The ESCAPE-20 scientific program reflects the strategic objectives of the CAPE Working Party: to check the status of historically consolidated topics by means of their industrial application and to evaluate their emerging issues. Includes a CD that contains all research papers and contributions Features a truly international scope, with guest speakers and keynote talks from leaders in science and industry Presents papers covering the latest research, key topical areas, and developments in computer-aided process engineering (CAPE)
Although batch processing has existed for a long time, designing these processes and unit operations has been considered an onerous task that required computational efforts. Design of these processes is made more complex because of the time dependent nature of the process and the allowable flexibility. More often than not, every unit encounters opt
Plenary Lectures. Topic 1 -- Off-Line Systems. Topic 2 -- On-Line Systems. Topic 3 -- Computational & Numerical Solutions Strategies. Topic 4 -- Integrated And Multiscale Modelling And Simulation. Topic 5 -- Cape For The Users!. Topic 6 -- Cape And Society. Topic 7 -- Cape In Education.
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 concepts, as well as industrial case studies. Contributions from the international community using computer-based methods in process engineering Reviews the latest developments in process systems engineering Emphasis on industrial and societal challenges
This book contains papers presented at the 14th European Symposium on Computer Aided Process Engineering (ESCAPE-14). The ESCAPE symposia bring together scientists, students and engineers from academia and industry, who are active in the research and application of Computer Aided Process Engineering. The objective of ESCAPE-14 is to highlight the use of computers and information technology tools on five specific themes: 1. Product and Process Design, 2. Synthesis and Process Integration, 3. Process Control and Analysis, 4. Manufacturing & Process Operations, 5. New Challenges in CAPE. - Provides this year's comprehensive overview of the current state of affairs in the CAPE community- Contains reports from the frontiers of science by the field's most respected scientists - Special Keynote by Professor Roger Sargent, Long Term Achievement CAPE Award winner