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Thermodynamic System Studies for a Natural Gas Combined Cycle (NGCC) Plant with CO 2 Capture and Hydrogen Storage with Metal Hydrides

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Energy Procedia 2014年 63卷 1996-2007页

作者： A. Thallam Thattai B.J. Wittebrood Theo Woudstra J.J.C. Geerlings P.V. Aravind Section Energy Technology Process & Energy Department Faculty of 3mE Delft University of Technology Leeghwaterstraat 39 2628CB Delft The Netherlands Department of Chemical Engineering Delft University of Technology Julianalaan 136 2628 BL Delft The Netherlands

Flexibility in natural gas combined cycle power plants (NGCC) with pre-combustion CO 2 capture could be introduced with co-production of hydrogen and subsequent hydrogen storage with metal hydrides (MH). The current work presents a thermodynamic analysis and comparison between steady state ASPEN Plus models of a reference case NGCC plant with no capture and H 2 storage, an NGCC plant with pre-combustion capture using gas heated - auto thermal reformer (GHR-ATR) combined with a sorption enhanced water gas shift (SEWGS) unit and a NGCC model with capture and a metal hydride (MH) based hydrogen storage unit. Results have been presented for a high temperature hydride (MgH 2 ) and a medium temperature hydride (Na 3 AlH 6 ). A net plant efficiency of about 48% was achieved for the system with only capture. Addition of hydrogen storage in this system shows that such plants can be still operated at comparable time based average efficiency of about 47% with an appropriate heat integration in the system. Operating the metal hydride at different temperatures does not reflect reduction in efficiency but a lower equilibrium temperature seems more beneficial particularly for a practical economizer in the HRSG. It is concluded that MH based hydrogen storage in NGCC plants with pre-combustion CO 2 capture is a promising option to manage fluctuations in power demand and further investigations are required particularly on heat integration, effect of H 2 purification technologies and economic assessment.

关键词： NGCC pre-combustion CO 2 capture SEWGS hydrogen storage metal hydrides

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Wall-to-Suspension Heat Transfer in a CFB Downcomer

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Journal of Powder technology 2015年第1期2015卷

作者： Huili Zhang Jan Degrève Raf Dewil Jan Baeyens Department of Chemical Engineering Bio- & Chemical Systems Technology Reactor Engineering and Safety Section KU Leuven Celestijnenlaan 200F 3001 Heverlee Belgiumkuleuven.be Department of Chemical Engineering Process and Environmental Technology Lab KU Leuven Jan De Nayerlaan 5 2860 Sint-Katelijne-Waver Belgiumkuleuven.be School of Engineering University of Warwick Coventry CV4 7AL UKwarwick.ac.uk

With the development of circulating fluidized beds (CFB) and dense upflow bubbling fluidized beds (UBFB) as chemical reactors, or in the capture and storage of solar or waste heat, the associated downcomer has been proposed as an additional heat transfer system. Whereas fundamental and applied research towards hydrodynamics has been carried out, few results have been reported on heat transfer in downcomers, even though it is an important element in their design and application. The wall-to-suspension heat transfer coefficient (HTC) was measured in the downcomer. The HTC increases linearly with the solids flux, till values of about 150 kg/m 2 s. The increasing HTC with increasing solid circulation rate is reflected through a faster surface renewal by the downflow of the particle-gas suspension at the wall. The model predictions and experimental data are in very fair agreement, and the model expression can predict the influence of the dominant parameters of heat transfer geometry, solids circulation flow, and particle characteristics.

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A Future Prospect for Domestic Waste Management in Qatar

A Future Prospect for Domestic Waste Management in Qatar

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International Conference on Earth, Environment and Life Sciences (EELS-2014, Dubai)

作者： Nasser Ayoub Farayi Musharavati Hossam A.Gabbar Qatar University the Production Technology Department Faculty of Industrial EducationHelwan University the Mechanical and Industrial Engineering Department The Collage of EngineeringQatar University Tokyo Institute of Technology Eindhoven University of Technology Production and Industrial Engineering Department Zagazig University Dept.of Mechanical and Industrial Engineering Qatar University the Faculty of Energy Systems and Nuclear Science University of Ontario Institute of Technology McMaster University Alexandria University SMC Chapter-Hiroshima Section the technical committee on Intelligent Green Production Systems(IGPS) International Journal of Process Systems Engineering (IJPSE)

Sustainable Waste Management is one of the major challenges that face developing nations,with the mandate to balance between their economic & social development while keeping environmental ***,for example,is generating a total of 28,000 tons per day of solid waste,of which only 3% is recycled,4% is incinerated while the remaining is disposed into *** of the targets of Qatar National Development Strategy,NDS is to raise the recycle share to 38% of solid waste,reducing landfill to 53% and converting waste to ***,this paper presents a potential view for managing and optimizing domestic waste management that is about 25% of the total generated waste in the country from system ***,a detailed methodology for Socio-Technological System,STS,development and operation was *** STS is a robust modular system that dynamically changes in response to social activities and deals with the problem from micro and macro details *** the proposed STS development methodology,several controllable parameters need to be considered,such as future construction plans,population development,waste collection methods possibilities,generation and recycling business development,strategies for materials use and reuse and so ***,the STS modularity to deal with the emerging technologies of converting waste to final products as significant fragments was taken care of to be able to adapt new technologies introduced in the future.

关键词： Qatar Socio-Technological Systems Strategies Waste Management

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Wall-to-Bed Heat Transfer at Minimum Gas-Solid Fluidization

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Journal of Powder technology 2014年第1期2014卷

作者： Huili Zhang Jan Degrève Jan Baeyens Raf Dewil Department of Chemical Engineering KU Leuven Chemical and Biochemical Process Technology and Control Section de Croylaan 46 3001 Heverlee Belgiumkuleuven.be School of Engineering University of Warwick Coventry UKwarwick.ac.uk Department of Chemical Engineering KU Leuven Process and Environmental Technology Lab J.P. De Nayerlaan 5 2860 Sint-Katelijne-Waver Belgiumkuleuven.be

The heat transfer from a fluidized bed to the cooling jacket of the vessel has been studied for various powders at minimum fluidization conditions, by both convection and conduction approaches. These heat transfer characteristics are important as the point of transition between packed and fluidized bed operations and are needed in designing heat transfer operations where bubble-flow is not permitted. The effective thermal conductivity of the emulsion moreover determines the contact resistance at the heating or cooling surface, as used in packet renewal models to predict the wall-to-bed heat transfer. In expressing the overall heat transfer phenomenon as a convective heat transfer coefficient, it was found that the results could be fitted by Nu mf, j = 0.01Ar 0.42 .

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Gasification of plastic waste as waste-to-energy or waste-to-syngas recovery route

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Natural Science 2013年第6期5卷 695-704页

作者： Anke Brems Raf Dewil Jan Baeyens Rui Zhang College of Life Science and Technology The Key Laboratory of Bioprocess of Beijing Beijing University of Chemical Technology Beijing China Department of Chemical Engineering Chemical and Biochemical Process Technology and Control Section Katholieke Universiteit Leuven Heverlee Belgium

The disposal of plastic solid waste (PSW) has become a major worldwide environmental problem. New sustainable processes have emerged, i.e. either advanced mechanical recycling of PSW as virgin or second grade plastic feedstock, or thermal treatments to recycle the waste as virgin monomer, as synthetic fuel gas, or as heat source (incineration with energy recovery). These processes avoid land filling, where the non-biodegradable plastics remain a lasting environmental burden. Within the thermal treatments, gasification and pyrolysis gain increased interest. Gasification has been widely studied and applied for biomass and coal, with results reported and published in literature. The application to the treatment of PSW is less documented. Gasification is commonly operated at high temperatures (> 600℃ to 800℃) in an air-lean environment (or oxygen-deficient in some applications): the air factor is generally between 20% and 40% of the amount of air needed for the combustion of the PSW. Gasification produces mostly a gas phase and a solid residue (char and ashes). The use of air introduces N2 in the product gases, thus considerably reducing the calorific value of the syngas, because of the dilution. The paper will review the existing literature data on PSW gasification, both as the result of laboratory and pilot-scale research. processes developed in the past will be illustrated. Recently, the use of a sequential gasification and combustion system (at very high temperatures) has been applied to various plastic-containing wastes, with atmospheric emissions shown to be invariably below the legal limits. Operating results and conditions will be reviewed in the paper, and completed with recent own lab-scale experimental results. These results demonstrate that gasification of PSW can be considered as a first order reaction, with values of the activation energy in the order of 187 to 289 kJ/mol as a function of the PSW nature.

关键词： Plastic Waste Re-Use Gasification Syngas Char Sustainability Reaction Rate

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Production of Surfactin withBacillus subtilisin a Fermentation process with Integrated Foam Fractionation

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Chemie Ingenieur Technik 2014年第9期86卷

作者： J. Willenbacher C. Syldatk R. Hausmann Karlsruhe Institute of Technology (KIT) Institute of Process Engineering in Life Sciences Section II: Technical Biology Engler‐Bunte‐Ring 1 Geb. 40.19 D‐76131 Karlsruhe Germany University of Hohenheim Institute of Food Science and Biotechnology (150) Section Bioprocess Engineering (150k) Emil‐Wolff‐Straße 14 D‐70599 Stuttgart Germany

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Comparative study of the sources of exergy destruction on four North Sea oil and gas platforms

Comparative study of the sources of exergy destruction on fo...

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26th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, ECOS 2013

作者： Voldsund, Mari Nguyen, Tuong-Van Elmegaard, Brian Ertesvåg, Ivar Ståle Røsjorde, Audun Jøssang, Knut Kjelstrup, Signe Department of Chemistry Norwegian University of Science and Technology Høgskoleringen 5 7491 Trondheim Norway Section of Thermal Energy Department of Mechanical Engineering Technical University of Denmark Nils Koppels Allé 2800 Kongens Lyngby Denmark Department of Energy and Process Engineering Norwegian University of Science and Technology Kolbjørn Hejes vei 1b. 7491 Trondheim Norway Statoil ASA Martin Linges vei 33 1364 Fornebu Norway

In this paper, the oil and gas processing systems on four North Sea offshore platforms are reported and discussed. Sources of exergy destruction are identified and the findings for the different platforms are compared. Different platforms have different working conditions, such as reservoir temperatures and pressures, gas- and water-to-oil ratios in the feed, crude oil properties, product specifications and recovery strategies. These differences imply that some platforms naturally need less power for oil and gas processing than others. Reservoir properties and composition also vary over the lifetime of an oil field, and to maintain the efficiency of an offshore platform is therefore challenging. In practice, variations in the process feed result in the use of control strategies such as anti-surge recycling, which cause additional power consumption and exergy destruction. For all four platforms, more than 27% of the total exergy destruction takes place in the gas treatment section while at least 16% occurs in the production manifold systems. The exact potential for energy savings and for enhancing system performances differ across offshore platforms. However, the results indicate that the largest potential for improvement lie (i) in gas compression systems where large amounts of gas are often compressed and might be recycled to prevent surge, and (ii) in production manifolds where well-streams are depressurised and mixed before being sent to the separation system.

关键词： Drilling platforms

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Microstructural control and mechanical properties of low-cost titanium alloys for next generation aircrafts

Microstructural control and mechanical properties of low-cos...

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8th Pacific Rim International Congress on Advanced Materials and processing 2013, PRICM 8

作者： Niinomi, Mitsuo Nakai, Masaaki Itsumi, Yoshio Murakami, Shogo Oyama, Hideto Abe, Wataru Hieda, Junko Cho, Ken Akahori, Toshikazu Institute for Materials Research Tohoku University Sendai 980-8577 Japan Titanium Research and Development Section Kobe Steel Ltd. Takasago 676-8670 Japan Materials Research Laboratory Kobe Steel Ltd. Kobe 651-2271 Japan Material and Process Engineering Section Aero Space Co. Kawasaki Heavy Industry Ltd. 1 Kawasaki-cho Kagamigahara 504-8710 Japan Faculty of Science and Technology Department of Materials Science and Engineering Meijo University 1-501 Shiogamaguchi Tempaku-ku Nagoya 468-8502 Japan

ISBN: (纸本)9781632660008

New titanium alloys have been developed for use in next-generation aircrafts by adding low-cost elements such as C, Fe, Al and Cr. Some of the newly developed alloys are Ti-4.5Al-2Mo-1.6V-0.5Fe-0.3Si-0.03C, referred to as KS Ti-9, and Ti-4.5Al-2.5Cr-1.2Fe-0.1C, referred to as KS Ti-531C. As opposed to the widely used Ti-6Al-4V (Ti64), KS Ti-9 can be rolled at much lower temperatures without employing pack-rolling, and the anisotropy in its mechanical strength is significant. Microstructural control process to reduce the anisotropy in the mechanical strength of KS Ti-9 has been investigated. Anisotropy controlling treatment (ACT) is found to be effective to reduce the anisotropy in the mechanical strength of KS Ti-9. KS Ti-531C, with good mechanical properties at room temperature, similar to those of Ti64, and high hot-workability with low flow stress during deformation at high temperatures, similar to that of commercially pure titanium (CPTi), has been developed for fabricating forged or extruded components. There still exists a possibility of the precipitation of titanium carbides depending on the kind of the microstructural control process used. The mechanical properties and the fatigue strength of KS Ti-531C with different microstructures have been investigated, (α + β)-annealed KS Ti-531C with an equiaxed α structure exhibits better ductility and fatigue strength than β-annealed KS Ti-531C with the Widmanstätten α structure because of the presence of titanium carbide precipitates in the β-annealed KS Ti-531C.

关键词： Titanium alloys

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Performance indicators for evaluation of North Sea oil and gas platforms

Performance indicators for evaluation of North Sea oil and g...

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26th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, ECOS 2013

作者： Voldsund, Mari Nguyen, Tuong-Van Elmegaard, Brian Ertesvåg, Ivar Ståle Røsjorde, Audun He, Wei Kjelstru, Signe Department of Chemistry Norwegian University of Science and Technology Høgskoleringen 5 7491 Trondheim Norway Section of Thermal Energy Department of Mechanical Engineering Technical University of Denmark Nils Koppels Allé 2800 Kongens Lyngby Denmark Department of Energy and Process Engineering Norwegian University of Science and Technology Kolbjørn Hejes vei 1b 7491 Trondheim Norway Statoil ASA Martin Linges vei 33 1364 Fornebu Norway Statoil ASA Sandsliveien 90 5254 Sandsli Norway Department of Chemistry Norwegian University of Science and Technology Realfagbygget D3 7491 Trondheim Norway

Well-defined performance indicators can motivate optimal operation of offshore oil and gas platforms. This paper aims to develop such parameters, indicating possibilities for reducing power consumption and emissions of pollutants. Different platforms have different oilfield conditions and process specifications. Such conditions determine the theoretical minimum work required to operate the platforms, and can have a high impact on the power consumption. We introduce performance indicators based on energy and exergy. The specific energy use and specific exergy consumption evaluate the resources spent to produce the exported petroleum. The best-available-technology efficiency compares the current energy use with the energy use if state-of-the-art components replace current compressors and pumps. Exergetic efficiency compares the actual resources spent in the current process with the minimum resources required under ideal conditions (i.e. reversible operation), and specific exergy destruction illustrates the amount of resources lost due to irreversibilities. We use these indicators to evaluate the oil and gas processing at four different North Sea platforms that differ by the field lifetime, system configuration and reservoir properties. Both the specific energy use and the specific exergy consumption ranged between 20 and 667 MJ/Sm3 o.e. in the four cases. The best-available-technology efficiencies showed that the energy use of the different platforms could be reduced by 17% to 44% if the most efficient technologies existing on the market were used. The exergetic efficiencies were 99.4%-99.9%, 50%-84% or 2%-46%, depending on the interpretation of product exergy and fuel/utilized exergy, while specific exergy destruction ranged from 17 to 162 MJ/Sm3 o.e. The platforms with best performances in specific energy use and exergy consumption did not necessarily have the highest best-available-technology or exergetic efficiencies. This illustrates the importance of considering

关键词： Exergy

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18th European Symposium on Radiopharmacy and Radiopharmaceuticals Salzburg, Austria. 7-10 April 2016

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EJNMMI RADIOPHARMACY AND CHEMISTRY 2016年第1期1卷 1-37页

作者： [Anonymous] Los Alamos National Laboratory Los Alamos USA Oak Ridge National Laboratory Oak Ridge USA Department of Nuclear Medicine Medical University Innsbruck Innsbruck Austria Department of Radiology & Nuclear Medicine Radboud University Medical Center Nijmegen The Netherlands Institute of Molecular and Translational Medicine Faculty of Medicine and Dentistry Palacky University Olomouc Czech Republic Département de Médecine Nucléaire et Radiobiologie Faculté de Médecine et Sciences de la Santé Université de Sherbrooke Sherbrooke Canada Centre d’Imagerie Moléculaire de Sherbrooke (CIMS) CR-CHUS Sherbrooke Canada Division of Molecular Biology/Biocenter Medical University Innsbruck Innsbruck Austria Department of Nuclear Medicine Radboud University Medical Center Nijmegen The Netherlands IENI-CNR Padua Italy DiSCOG-University of Padua Padua Italy IOV Padua Padua Italy IC-CNR Bari Italy IBB-CNR Naples Italy Laboratory of Radiopharmacy KU Leuven Leuven Belgium Micro Flow Chemistry & Process Technology Chemical Engineering and Chemistry Department TU Eindhoven Eindhoven The Netherlands Laboratory for Radiopharmacy University of Leuven Leuven Belgium Department of Nuclear Medicine and Molecular Imaging University of Leuven Leuven Belgium Department of Medicine and Surgery Tecnomed Foundation University of Milano-Bicocca Milan Italy Dipartimento di Biotecnologie Mediche e Medicina Traslazionale Università degli Studi di Milano Milan Italy Department of Radiology & Nuclear Medicine VU University Medical Center Amsterdam The Netherlands Department of Clinical Pharmacology & Pharmacy VU University Medical Center Amsterdam The Netherlands Université de Lorraine Vandoeuvre les Nancy France NancycloTEP Plateforme d’imagerie expérimentale Vandoeuvre les Nancy France CNRS UMR 7565 SRSMC Vandoeuvre les Nancy France CHU de Nancy-Brabois Vandoeuvre les Nancy France Department of Biomedical Imaging and Image-guided Therapy Division of Nuclear Medicine Medical Univers

Table of contents OP03 Selective extraction of medically-related radionuclides from proton-irradiated thorium targets V. Radchenko, J.W. Engle, C. Roy, J. Griswold, M.F. Nortier, E.R. Birnbaum, M. Brugh, S. Mirzadeh, K. D. John, M.E. Fassbender OP04 Comparison of [68Ga]FSC(succ-RGD)3 and [68Ga]NODAGA-RGD for PET imaging of alpha v beta 3 integrin expression Chuangyan Zhai, Gerben M. Franssen, Milos Petrik, Peter Laverman, Clemens Decristoforo OP05 A new NPY-Y1R targeting peptide for breast cancer PET imaging Ait-Mohand Samia, Dumulon-Perreault Veronique, Guerin Brigitte OP06 The influence of multivalency on CCK 2 receptor targeting D. Summer, A. Kroess, C. Rangger, H. Haas, P. Laverman, F. Gerben, E. von Guggenberg, *** OP07 SPECT Imaging of alpha v beta 3 Expression by [99mTc(N)PNP43]- Bifunctional Chimeric RGD Peptide not Cross-Reacting with alpha v beta 5 Cristina Bolzati, Nicola Salvarese, Fiorenzo Refosco, Laura Melendez-Alafort, Debora Carpanese, Antonio Rosato, Michele Saviano, Annarita Del Gatto, Daniela Comegna, Laura Zaccaro OP09 New dienophiles for the inverse-electron-demand Diels-Alder reaction and for pretargeted PET imaging Emilie Billaud, Muneer Ahamed, Frederik Cleeren, Elnaz Shahbazali, Tim Noel, Volker Hessel, Alfons Verbruggen and Guy Bormans OP10 New complexing agent for Al18F-labelling of heat-sensitive biomolecules: Synthesis and preclinical evaluation of Al18F-RESCA1-HAS Cleeren F, Lecina J, Koole M, Verbruggen A and Bormans G OP11 A novel versatile precursor efficient for F-18 radiolabelling via click-chemistry B. Lugatoa, S. Stucchia, E.A. Turollaa, L. Giulianoa, ***, P. Ferraboschib OP12 A general applicable method to quantify unidentified UV impurities in radiopharmaceuticals R.P. Klok, M.P.J. Mooijer, N.H. Hendrikse, A.D. Windhorst OP13 Development of [F-18]Fluoro-C-glycosides to radiolabel peptides Collet C., Petry N., Chretien F., Karcher G., Pellegrini-Moise N., Lamande-Langle S. OP14 A Microfluidic Approach for the 68

关键词： Positron Emission Tomography Single Photon Emission Compute Tomography Standard Uptake Value Positron Emission Tomography Imaging High Pressure Liquid Chromatography

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