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Process Integration (process + integration)
Selected AbstractsPinch Analysis and Process Integration: A User Guide on Process Integration for the Efficient Use of Energy By Ian C. Kemp, 2nd ed.AICHE JOURNAL, Issue 11 2008Mahmoud M. El-Halwagi No abstract is available for this article. [source] Process integration toward environmental impact reductionENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY, Issue 2 2005Gautham Parthasarathy No abstract is available for this article. [source] Process integration technology review: background and applications in the chemical process industryJOURNAL OF CHEMICAL TECHNOLOGY & BIOTECHNOLOGY, Issue 9 2003Russell F Dunn Abstract Process integration is a holistic approach to process design and operation which emphasizes the unity of the process. Process integration design tools have been developed over the past two decades to achieve process improvement, productivity enhancement, conservation in mass and energy resources, and reductions in the operating and capital costs of chemical processes. The primary applications of these integrated tools have focused on resource conservation, pollution prevention and energy management. Specifically, the past two decades have seen the development and/or application of process integration design tools for heat exchange networks (HENs), wastewater reduction and water conservation networks, mass exchange networks (MENs), heat- and energy-induced separation networks (HISENs and EISENs), waste interception networks (WINs) and heat- and energy-induced waste minimization networks (HIWAMINs and EIWAMINs), to name a few. This paper provides an overview of some of these developments and outlines major driving forces and hurdles. The fundamental aspects of this approach along with their incorporation in an overall design methodology will be discussed. The paper also highlights several recent applications of process integration to industrial processes. Copyright © 2003 Society of Chemical Industry [source] Product/Process integration in food manufacture: Engineering sustained healthAICHE JOURNAL, Issue 5 2006Ian Norton First page of article [source] Modeling an industrial energy system: Perspectives on regional heat cooperationINTERNATIONAL JOURNAL OF ENERGY RESEARCH, Issue 9 2008S. Klugman Abstract Through energy efficiency measures, it is possible to reduce heat surplus in the pulp and paper industry. Yet pulp and paper mills situated in countries with a heat demand for residential and commercial buildings for the major part of the year are potential heat suppliers. However, striving to utilize the heat within the mills for efficient energy use could conflict with the delivery of excess heat to a district heating system. As part of a project to optimize a regional energy system, a sulfate pulp mill situated in central Sweden is analyzed, focusing on providing heat and electricity to the mill and its surrounding energy systems. An energy system optimization method based on mixed integer linear programming is used for studying energy system measures on an aggregated level. An extended system, where the mill is integrated in a regional heat market (HM), is evaluated in parallel with the present system. The use of either hot sewage or a heat pump for heat deliveries is analyzed along with process integration measures. The benefits of adding a condensing unit to the back-pressure steam turbine are also investigated. The results show that the use of hot sewage or a heat pump for heat deliveries is beneficial only in combination with extended heat deliveries to an HM. Process integration measures are beneficial and even increase the benefit of selling more heat for district heating. Adding a condensing turbine unit is most beneficial in combination with extended heat deliveries and process integration. Copyright © 2007 John Wiley & Sons, Ltd. [source] NGOSS-based convergent OSS framework toward business agility: KT caseINTERNATIONAL JOURNAL OF NETWORK MANAGEMENT, Issue 6 2006Cheol-Seong Kim Recently, most wireline telecom service providers have confronted a decrease of subscribers because wireless service providers are making inroads into traditional telecom markets and gaining tangible net earnings. To overcome a severely competitive business environment, wireline service providers strive to change their service infrastructure from a network-focused service to a value-added and customer-focused one that can create new value and markets. This also entails a paradigm shift in operations and management, and now most service providers are rushing to build a new converged OSS to efficiently accommodate the network and service evolution. KT has driven the NeOSS (New OSS) project to build a convergent OSS for the past 3 years. This paper presents three NGOSS-based architectural core principles that are the foundation of NeOSS, which are business process integration by using BPM technology, distributed application integration by using EAI technology, and building a consolidated inventory DB based on a standard information model. Lastly, we present KT's operational improvement through the use of NeOSS. Copyright © 2006 John Wiley & Sons, Ltd. [source] Catalytic selective oxidation faces the sustainability challenge: turning points, objectives reached, old approaches revisited and solutions still requiring further investigationJOURNAL OF CHEMICAL TECHNOLOGY & BIOTECHNOLOGY, Issue 9 2010Fabrizio Cavani Abstract This review documents some examples of recently developed technologies and new approaches currently being investigated in the field of catalytic selective oxidation, that may contribute to improving the sustainability of the chemical industry. Tools to reach this ambitious target include process integration, the development of new reactions for the valorization of renewables and new catalysts able to perform complex transformations in a single step. Copyright © 2010 Society of Chemical Industry [source] Advanced oxidation processes for water treatment: advances and trends for R&DJOURNAL OF CHEMICAL TECHNOLOGY & BIOTECHNOLOGY, Issue 6 2008Christos Comninellis Abstract Advanced oxidation comprises a range of similar but different chemical processes aimed at tackling pollution in water, air and soil. Over the past few decades, multidisciplinary research has been carried out to study a broad spectrum of topics such as understanding of process fundamentals, elucidation of kinetics and mechanisms, development of new materials, modelling, process integration and scale-up. This article identifies and discusses certain directions that seem to advance R&D on advanced oxidation for water/wastewater treatment. Copyright © 2008 Society of Chemical Industry [source] Process integration technology review: background and applications in the chemical process industryJOURNAL OF CHEMICAL TECHNOLOGY & BIOTECHNOLOGY, Issue 9 2003Russell F Dunn Abstract Process integration is a holistic approach to process design and operation which emphasizes the unity of the process. Process integration design tools have been developed over the past two decades to achieve process improvement, productivity enhancement, conservation in mass and energy resources, and reductions in the operating and capital costs of chemical processes. The primary applications of these integrated tools have focused on resource conservation, pollution prevention and energy management. Specifically, the past two decades have seen the development and/or application of process integration design tools for heat exchange networks (HENs), wastewater reduction and water conservation networks, mass exchange networks (MENs), heat- and energy-induced separation networks (HISENs and EISENs), waste interception networks (WINs) and heat- and energy-induced waste minimization networks (HIWAMINs and EIWAMINs), to name a few. This paper provides an overview of some of these developments and outlines major driving forces and hurdles. The fundamental aspects of this approach along with their incorporation in an overall design methodology will be discussed. The paper also highlights several recent applications of process integration to industrial processes. Copyright © 2003 Society of Chemical Industry [source] A property-based optimization of direct recycle networks and wastewater treatment processesAICHE JOURNAL, Issue 9 2009José María Ponce-Ortega Abstract This article presents a mathematical programming approach to optimize direct recycle-reuse networks together with wastewater treatment processes in order to satisfy a given set of environmental regulations. A disjunctive programming formulation is developed to optimize the recycle/reuse of process streams to units and the performance of wastewater treatment units. In addition to composition-based constraints, the formulation also incorporates in-plant property constraints as well as properties impacting the environment toxicity, ThOD, pH, color, and odor. The MINLP model is used to minimize the total annual cost of the system, which includes the cost for the fresh sources, the piping cost for the process integration and the waste stream treatment cost. An example problem is used to show the application of the proposed model. The results show that the simultaneous optimization of a recycle network and waste treatment process yields significant savings with respect to a commonly-used sequential optimization strategy. © 2009 American Institute of Chemical Engineers AIChE J, 2009 [source] Shape Optimization of the Diffuser Blade of an Axial Blood Pump by Computational Fluid DynamicsARTIFICIAL ORGANS, Issue 3 2010Lailai Zhu Abstract Computational fluid dynamics (CFD) has been a viable and effective way to predict hydraulic performance, flow field, and shear stress distribution within a blood pump. We developed an axial blood pump with CFD and carried out a CFD-based shape optimization of the diffuser blade to enhance pressure output and diminish backflow in the impeller,diffuser connecting region at a fixed design point. Our optimization combined a computer-aided design package, a mesh generator, and a CFD solver in an automation environment with process integration and optimization software. A genetic optimization algorithm was employed to find the pareto-optimal designs from which we could make trade-off decisions. Finally, a set of representative designs was analyzed and compared on the basis of the energy equation. The role of the inlet angle of the diffuser blade was analyzed, accompanied by its relationship with pressure output and backflow in the impeller,diffuser connecting region. [source] | |||||||||||||