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Akviziční jednotka pro zabezpečovací techniku / Acquisition Unit for Security SystemPejchal, Luboš January 2012 (has links)
Project is focused to development of security unit for security of homes, flats and other similar spaces against intruders (thieves). Design is focused to solution of hardware and firmware for security units and their control software for PC. Hardware design solve supply over ethernet PoE, backup of supply, connection securities sensors to security unit. Firmware prevents failure of units and it is communicating with sensors and PC. Software in PC provides settings of security units, deactivating of alarm and measure temperature by security unit.
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Bezdrátový systém pro vyhodnocení řízení osvětlení v budovách s cílem získat informace vedoucí k úsporám / Wireless System for Evaluation of Lighting Control in Buildings for Obtaining Information Leading to SavingsMalinowski, Radim January 2015 (has links)
The aim of the thesis is to design a system based on wirelessly comunicating devices that will be able to record an information about persons presesce in certain area. Aquired data will served for evaluation of the area lighting system efficiency. Partial goals related to this work are: to analyze electricity consumption mesaurement methods, to analyze presence and movement detection methods, to analzye wireless communication methods, to desin system's HW and SW including realization, to put system into a real operation and finally, to evaluate measured data.
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Undersökning av TRP tak med PIR isolering utan plastfolie / Investigation of TRP-roof construction with PIR insulation without plastic filmPourfeiz, Hani, Karmanji, Yadgar January 2015 (has links)
Idag ligger fokus på energieffektivisering av byggnader. I och med detta ligger tung vikt på fuktsäkerhetsprojektering i konstruktioner som i sin tur måste vara lufttäta och diffusionstäta. Kombinationen av svenska vinterperioder och övertrycket som uppstår inomhus medför att taken utsätts för stora påfrestningar. Luften inomhus innehåller alltid mer fukt än luften utomhus. Då fukt alltid strävar efter att jämna ut sig går den varma och fuktiga inomhusluften till utrymmen med lägre fukthalt eller lägre lufttryck. Det är bland annat av dessa anledningar man använder ångspärr i ytterväggar och takkonstruktioner. Syftet med detta projekt är att genomföra en fuktteknisk bedömning för takkonstruktioner uppbyggda av TRP plåt, PIR isolering utan plastfolie. Anledningen till att bygga tak utan plastfolie är att sätta fuktfrågorna i fokus vid nybyggnadsprojekt samt att eftersträva skapandet av fuktsäkra och sunda konstruktioner. För att analysera takkonstruktionen samt genomföra fukttekniska bedömningar har simuleringar av konstruktionen under olika förutsättningar i WUFI Pro 5.1. genomförts. Därefter har resultatet analyserats ur diffusions- och konvektionssynpunkt. Resultaten visar inga större skillnader ur diffusionssynpunkt. Dock är skillnaderna mer uppenbara ur konvektionssynpunkt. Fuktmängden i konstruktionen utan plastfolie var betydligt större än konstruktion med plastfolie. Resultaten visar på att luftläckaget och fuktmängden har ett proportionellt förhållande med luftspaltbredden som bildas mellan PIR isoleringselementen. Detta gäller om ingen plastfolie används i konstruktionen. Slutsatsen är att det råder en större risk för luftläckage hos takkonstruktionen utan plastfolie på grund av otätheter i skarvar och spalter. För att få en fuktsäker och sund konstruktion rekommenderar författarna att plastfolie används. / Nowadays there is a high focus on energy efficiency of buildings. Therefore, a lot of resources are dedicated to moisture management in order to ensure that constructions stay airproof and diffused. The combination of Swedish winter periods and the overpressure that occurs indoors means that the ceilings are subjected to the great stress. Indoor air contains more moisture than the air outdoors. As moisture is always striving to even out, the hot and humid indoor air moves to spaces with lower moisture content or lower air pressure. It is partly for these reasons why it is necessary to use a vapor barrier in the outer wall and roof construction. The purpose of building roofs without plastic foil is to put moisture issues in focus for new construction projects, but also, seek to create moisture proof and healthy construction designs. Further the goal of this project is to conduct a moisture technical assessment of roof structures built by TRP plate and PIR insulation without plastic film. Additionally, investigate if PIR-insulation can act as diffusion and convection protection. In order to analyze the roof structure and conduct moisture technical assessments, the design has been simulated using WUFI Pro 5.1 during different conditions. The result has then been analyzed from diffusion and convection perspectives. The results showed no major differences when compared from diffusion point of view. However, the differences are more obvious from convection perspective. The amount of moisture in the construction without plastic foil was considerably larger than the construction with a plastic foil. The results also showed that the air leakage and moisture amount has proportional ratio to the air gap width between the PIR-insulation elements. This is the case if no plastic foil used in the construction. The conclusion is that there is a greater risk of air leakage in the roof construction without the plastic foil because of leaks in the joins or gaps. For a moisture-proof and healthy design, the authors recommend that a plastic foil should be used.
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Arquitetura do plano preferencial de recursos para o setor elétrico no planejamento integrado de recursos energéticos. / Architecture of preferential energy resource plan for electricity sector in integrated resources planning.Maruyama, Flávio Minoru 15 October 2013 (has links)
O objetivo deste trabalho é determinar e modelar a Arquitetura do Plano Preferencial Integrado de Recursos para o Setor Elétrico, no contexto do planejamento energético atual. O Plano Preferencial Integrado é uma coletânea sistêmica de recursos energéticos obtidos por meio de um processo integrado de planejamento, ao longo do tempo e da geografia, denominado Planejamento Integrado de Recursos Energéticos (PIR). Utilizam-se metodologias do Inventário Energoambiental, da Listagem e do Peneiramento de Recursos Energéticos, do Cômputo e Valoração de Recursos Energéticos, da Análise de Custos Completos, englobando custos internos e externos, da Previsão da Demanda e da Integração de Recursos, ponto em que efetivamente se inicia a construção do Plano. A validação do modelo é realizada no estudo de caso aplicado na Região Administrativa de Araçatuba, no oeste do estado de São Paulo, Brasil. Por fim, apresentam-se considerações sobre esse plano preferencial e estabelece-se a proposta de uma metodologia alternativa de planejamento energético para o setor elétrico, visando o desenvolvimento sustentável por meio de uma imbricação entre energia, meio ambiente e sociedade, com seu balanço equilibrado de importâncias. / The objective of the study is to define and model the Architecture of Integrated Energy Resources Preferential Plan for the Power Sector, in the context of current energy planning. The Integrated Energy Resources Preferential Plan is a systemic compilation of energy resources obtained through an integrated energy planning over the time and geography, called Integrated Resource Planning (IRP). The plan is developed using the methodology of Environmental and Energy Inventory; Listing and Drafting of Energy Resources; Calculation and Valuation of Energy Resources Full Potentials, Full Cost Analysis, Demand Forecasting and Resources Integration, after which the construction of plan effectively starts. The model validation is performed in the case study applied in Araçatuba Administrative Region, in the western state of São Paulo, Brazil. Finally, the IRP Preferred Plan is reviewed and a proposal for an alternative methodology for energy planning for the power sector is presented aiming at sustainable development through a complete overview among energy, environment and society, with its balanced importance.
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Energieffektivisering av prefabricerade byggelement / Improving energy efficiency of prefabricated building elementsOlsson, Morgan, Robert, Åkesson January 2013 (has links)
Rapporten behandlar energieffektivisering av Villa Vidas prefabricerade byggelement. I arbetet undersöks hur och med hjälp av vilka material en effektivisering av elementen kan gå till. I slutet av rapporten presenteras sedan det förslag till varje väggtyp som bedömdes som lämpligast att ersätta respektive standardalternativ med.
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Practical Private Information RetrievalOlumofin, Femi George January 2011 (has links)
In recent years, the subject of online privacy has been attracting much interest, especially as more Internet users than ever are beginning to care about the privacy of their online activities. Privacy concerns are even prompting legislators in some countries to demand from service providers a more privacy-friendly Internet experience for their citizens. These are welcomed developments and in stark contrast to the practice of Internet censorship and surveillance that legislators in some nations have been known to promote. The development of Internet systems that are able to protect user privacy requires private information retrieval (PIR) schemes that are practical, because no other efficient techniques exist for preserving the confidentiality of the retrieval requests and responses of a user from an Internet system holding unencrypted data. This thesis studies how PIR schemes can be made more relevant and practical for the development of systems that are protective of users' privacy.
Private information retrieval schemes are cryptographic constructions for retrieving data from a database, without the database (or database administrator) being able to learn any information about the content of the query. PIR can be applied to preserve the confidentiality of queries to online data sources in many domains, such as online patents, real-time stock quotes, Internet domain names, location-based services, online behavioural profiling and advertising, search engines, and so on.
In this thesis, we study private information retrieval and obtain results that seek to make PIR more relevant in practice than all previous treatments of the subject in the literature, which have been mostly theoretical. We also show that PIR is the most computationally efficient known technique for providing access privacy under realistic computation powers and network bandwidths. Our result covers all currently known varieties of PIR schemes. We provide a more detailed summary of our contributions below:
Our first result addresses an existing question regarding the computational practicality of private information retrieval schemes. We show that, unlike previously argued, recent lattice-based computational PIR schemes and multi-server information-theoretic PIR schemes are much more computationally efficient than a trivial transfer of the entire PIR database from the server to the client (i.e., trivial download). Our result shows the end-to-end response times of these schemes are one to three orders of magnitude (10--1000 times) smaller than the trivial download of the database for realistic computation powers and network bandwidths. This result extends and clarifies the well-known result of Sion and Carbunar on the computational practicality of PIR.
Our second result is a novel approach for preserving the privacy of sensitive constants in an SQL query, which improves substantially upon the earlier work. Specifically, we provide an expressive data access model of SQL atop of the existing rudimentary index- and keyword-based data access models of PIR. The expressive SQL-based model developed results in between 7 and 480 times improvement in query throughput than previous work.
We then provide a PIR-based approach for preserving access privacy over large databases. Unlike previously published access privacy approaches, we explore new ideas about privacy-preserving constraint-based query transformations, offline data classification, and privacy-preserving queries to index structures much smaller than the databases. This work addresses an important open problem about how real systems can systematically apply existing PIR schemes for querying large databases.
In terms of applications, we apply PIR to solve user privacy problem in the domains of patent database query and location-based services, user and database privacy problems in the domain of the online sales of digital goods, and a scalability problem for the Tor anonymous communication network.
We develop practical tools for most of our techniques, which can be useful for adding PIR support to existing and new Internet system designs.
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Practical Private Information RetrievalOlumofin, Femi George January 2011 (has links)
In recent years, the subject of online privacy has been attracting much interest, especially as more Internet users than ever are beginning to care about the privacy of their online activities. Privacy concerns are even prompting legislators in some countries to demand from service providers a more privacy-friendly Internet experience for their citizens. These are welcomed developments and in stark contrast to the practice of Internet censorship and surveillance that legislators in some nations have been known to promote. The development of Internet systems that are able to protect user privacy requires private information retrieval (PIR) schemes that are practical, because no other efficient techniques exist for preserving the confidentiality of the retrieval requests and responses of a user from an Internet system holding unencrypted data. This thesis studies how PIR schemes can be made more relevant and practical for the development of systems that are protective of users' privacy.
Private information retrieval schemes are cryptographic constructions for retrieving data from a database, without the database (or database administrator) being able to learn any information about the content of the query. PIR can be applied to preserve the confidentiality of queries to online data sources in many domains, such as online patents, real-time stock quotes, Internet domain names, location-based services, online behavioural profiling and advertising, search engines, and so on.
In this thesis, we study private information retrieval and obtain results that seek to make PIR more relevant in practice than all previous treatments of the subject in the literature, which have been mostly theoretical. We also show that PIR is the most computationally efficient known technique for providing access privacy under realistic computation powers and network bandwidths. Our result covers all currently known varieties of PIR schemes. We provide a more detailed summary of our contributions below:
Our first result addresses an existing question regarding the computational practicality of private information retrieval schemes. We show that, unlike previously argued, recent lattice-based computational PIR schemes and multi-server information-theoretic PIR schemes are much more computationally efficient than a trivial transfer of the entire PIR database from the server to the client (i.e., trivial download). Our result shows the end-to-end response times of these schemes are one to three orders of magnitude (10--1000 times) smaller than the trivial download of the database for realistic computation powers and network bandwidths. This result extends and clarifies the well-known result of Sion and Carbunar on the computational practicality of PIR.
Our second result is a novel approach for preserving the privacy of sensitive constants in an SQL query, which improves substantially upon the earlier work. Specifically, we provide an expressive data access model of SQL atop of the existing rudimentary index- and keyword-based data access models of PIR. The expressive SQL-based model developed results in between 7 and 480 times improvement in query throughput than previous work.
We then provide a PIR-based approach for preserving access privacy over large databases. Unlike previously published access privacy approaches, we explore new ideas about privacy-preserving constraint-based query transformations, offline data classification, and privacy-preserving queries to index structures much smaller than the databases. This work addresses an important open problem about how real systems can systematically apply existing PIR schemes for querying large databases.
In terms of applications, we apply PIR to solve user privacy problem in the domains of patent database query and location-based services, user and database privacy problems in the domain of the online sales of digital goods, and a scalability problem for the Tor anonymous communication network.
We develop practical tools for most of our techniques, which can be useful for adding PIR support to existing and new Internet system designs.
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Prepara??o e caracteriza??o de catalisadores ? base de tit?nio suportado em MCM-41 para produ??o de compostos oxigenados atrav?s da pir?lise catal?tica do capim elefanteFontes, Maria do Socorro Braga 17 May 2013 (has links)
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Previous issue date: 2013-05-17 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / In recent years, the area of advanced materials has been considerably, especially when it comes to materials for industrial use, such as is the case with structured porosity of catalysts suitable for catalytic processes.
The use of catalysts combined with the fast pyrolysis process is an alternative to the oxygenate production of high added value, because, in addition to increasing the yield and quality of products, allows you to manipulate the selectivity to a product of interest, and therefore allows greater control over the characteristics of the final product.
Based on these arguments, in this work were prepared titanium catalysts supported on MCM-41 for use in catalytic pyrolysis of biomass, called elephant grass.
The reactions of pyrolysis of biomass were performed in a micro pyrolyzer, Py-5200, coupled to GC / MS, the company CDS Corporation, headquartered in the United States. The catalysts Ti-MCM-41 in different molar ratios were characterized by XRD, TG / DTG, FT-IR, SEM, XRF, UV-visible adsorption of nitrogen and the distribution of particle diameter and specific surface area measurement by the BET method. From the catalytic tests it was observed that the catalysts synthesized showed good results for the pyrolysis reaction.The main products were obtained a higher yield of aldehydes, ketones and furan. It was observed that the best reactivity is a direct function of the ratio Si/Ti, nature and concentration of the active species on mesoporous supports. Among the catalysts Ti-MCM-41 (molar ratio Si / Ti = 25 and 50), the ratio Si / Ti = 25 (400 ? C and 600 ? C) favored the cracking of oxygenates such as acids , aldehydes, ketones, furans and esters. Already the sample ratio Si / Ti = 50 had the highest yield of aromatic oxygenates / Nos ?ltimos anos, a ?rea de materiais tem avan?ado consideravelmente, principalmente, quando se trata de materiais para uso industrial, como ? o caso de catalisadores estruturados com porosidade adequada para os processos catal?ticos.
O uso de catalisadores combinados ao processo de pir?lise r?pida ? uma alternativa para a produ??o de compostos oxigenados de alto valor agregado, pois, al?m de elevar o rendimento e qualidade dos produtos, permite manipular a seletividade para um produto de interesse e, portanto, permite um maior controle sobre as caracter?sticas do produto final.
Com base nesses argumentos, neste trabalho foram preparados catalisadores de tit?nio suportados em MCM-41 para uso em pir?lise catal?tica da biomassa, denominada de capim elefante.
As rea??es de pir?lise da biomassa foram realizadas em um micro pirolisador, Py-5200, acoplado ao GC/MS, da empresa CDS Corporation, sediada nos Estados Unidos. Os catalisadores Ti-MCM-41, em diferentes raz?es molares, foram caracterizados por DRX, TG/DTG, FT-IR, MEV, FRX, UV-Vis?vel, adsor??o de nitrog?nio, distribui??o de di?metro de part?culas e medidas de ?rea espec?fica pelo m?todo BET.
A partir dos testes catal?ticos foi poss?vel observar que os catalisadores sintetizados apresentaram bons resultados para a rea??o de pir?lise. Entre os catalisadores Ti-MCM-41 (raz?es molares Si/Ti = 25 e 50), o de raz?o Si/Ti=25 (temperatura de 400?C e 600?C) favoreceu o craqueamento de compostos oxigenados, tais como, ?cidos, alde?dos, cetonas, furanos e ?steres. J? a amostra de raz?o Si/Ti = 50 apresentou maior rendimento de arom?ticos oxigenados
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Caracteriza??o das propriedades fotoluminescentes de Ba1-xZnxMoO4 sintetizados pelo m?todo de spray pir?lise ultrass?nicoSantiago, Anderson de Azevedo Gomes 18 December 2017 (has links)
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Previous issue date: 2017-12-18 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / Os molibdatos v?m sendo objeto de estudos devido as suas diversas aplica??es. Entre os molibdatos, o molibdato de b?rio (BaMoO4) e molibdato de zinco (ZnMoO4) t?m se destacado pelas suas interessantes propriedades fotoluminescentes, com emiss?es de luz na regi?o do azul, verde e laranja, e pelos seus diferentes m?todos de obten??o, como hidrotermal, sol-gel e coprecipita??o. P?s de Ba1-xZnxMoO4 (x=0; 0,25; 0,50; 0,75 e 1) foram sintetizados, em etapa ?nica, pelo m?todo de spray pir?lise ultrass?nico, utilizando temperaturas de 1000 ?C e 1100 ?C. O tempo para forma??o das part?culas dentro do reator foi de aproximadamente 1 min. As amostras foram caracterizadas estruturalmente pela t?cnica de difra??o de raios X e morfologicamente pela t?cnica de microscopia eletr?nica de varredura de emiss?o de campo (MEV-FEG). As propriedades ?pticas das amostras foram estudadas utilizando as espectroscopias de UV-vis?vel e de fotoluminesc?ncia (FL). Os padr?es de DRX mostraram que as amostras com x = 0 e x = 1 t?m estrutura cristalina scheelita tetragonal e tricl?nica, respectivamente, sem a presen?a de fases secund?rias. Por outro lado, as amostras com x = 0,25, 0,50 e 0,75 revelaram a forma??o de uma heteroestrutura tetragonal/tricl?nica, em que ocorre substitui??o at?mica de Ba2+ por Zn2+ na estrutura tetragonal do BaMoO4 e na estrutura tricl?nica do ZnMoO4 ocorrendo a substitui??o at?mica de Zn2+ por Ba2+. As micrografias de MEV-FEG demostraram que as part?culas obtidas t?m morfologia predominantemente esf?rica, com di?metros que variam entre 100 e 1500 nm. A energia de gap dos Ba1-xZnxMoO4 variou entre 4,56 eV ? 4,17 eV, com os p?s com x = 0 se obteve os valores mais elevados (4,54 eV e 4,56 eV) e os p?s com x = 1 os valores mais baixos (4,17 eV e 4,26 eV). Dessa forma, foi percebido que as energias de gap das amostras diminuem com o aumento do valor de x, ou seja, com aumento da substitui??o dos ?tomos de Ba2+ pelos de Zn2+. Os espetros fotoluminescentes (FL) das amostras apresentaram comportamento banda larga, com emiss?o predominante na regi?o laranja-vermelho e pequena contribui??o de emiss?o da regi?o azul-verde, com a amostra de x = 0,75 obtida ? 1000 ?C mostrando maior intensidade FL. As coordenadas de cromaticidade x e y mostraram que as amostras com x ? 0,75 apresentam emiss?o em laranja, entretanto, as amostras com x = 1 apresentaram emiss?o em branco, podendo ser um candidato promissor para aplica??es em diodos emissores de luz. / The molybdates have been the subject of studies due to their various applications. Among the molybdates, the barium molybdate (BaMoO4) and zinc molybdate (ZnMoO4) have been standing out by its interesting photoluminescent properties, with light emissions in the region of the blue, green and orange, and by its different methods of obtaining, such as hydrothermal, sol-gel and coprecipitation. Ba1-xZnxMoO4 (x = 0, 0.25, 0.50, 0.75 and 1) powders were synthesized, in a one-step, by the ultrasonic spray pyrolysis method, using temperatures of 1000 ?C and 1100 ?C. Time for particle formation within the reactor was approximately 1 min. The samples were structurally characterized by the X-ray diffraction and morphologically by the field emission scanning electron microscopy (FESEM). Optical properties of the samples were studied using UV-visible and photoluminescence (PL) spectroscopies. The DRX patterns showed that the samples with x = 0 and x = 1 have crystalline tetragonal scheelite and triclinic structure, respectively, without the presence of secondary phases. On the other hand, the samples with x = 0.25, 0.50 and 0.75 revealed the formation of a heterostructure tetragonal/triclinic, in which atomic substitution of Ba2+ by Zn2+ in the tetragonal structure of the BaMoO4 and triclinic structure of the ZnMoO4 occurring the atomic substitution of Zn2+ by Ba2+. FESEM micrographs showed that the particles obtained have predominantly spherical morphology with diameters ranging from 100 to 1500 nm. The gap energy of the Ba1-xZnxMoO4 ranged from 4.56 eV to 4.17 eV, with the powders with x = 0, obtaining the highest values (4.54 eV and 4.56 eV) and the powders with x = 1 the lowest values (4.17 eV and 4.26 eV). In this way, it was noticed that the gap energies of the samples decrease with the increase of the value of x, that is, with increasing substitution of the Ba2+ for the Zn2+ atoms. Photoluminescent (PL) spectra of the samples showed broad band behavior, with predominant emission in the orange-red region and small emission contribution of the blue-green region, with the sample of x = 0.75 obtained at 1000 ? C showing higher PL intensity. The chromaticity coordinates x and y showed that the samples with x ? 0.75 exhibit in orange emission, however, the samples with x = 1 presented white emission, can be a promising candidate for applications in light emitting diodes.
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Ze?litas sintetizadas com estruturas hier?rquicas aplicadas a pir?lise de res?duos da ind?stria de petr?leoLima, Regineide de Oliveira 26 July 2016 (has links)
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Previous issue date: 2016-07-26 / A ind?stria de petr?leo gera diferentes res?duos e as ze?litas possuem grande
import?ncia no tratamento e beneficiamento dos res?duos da ind?stria de refino de
petr?leo e petroqu?mica por apresentarem propriedades peculiares. Neste contexto, o
presente trabalho relata o estudo de ze?litas ZSM-5 com estruturas hier?quicas de poros,
sintetizadas utilizando como agente silanizante, o fenilaminopropiltrimetoxisilano
(PHAPTMS) nas concentra??es de 15 mol%, 17 mol% e 20 mol%, visando aplica??o do
melhor material na pir?lise termocatal?tica de res?duos gerados e derivados da ind?stria
de petr?leo. As s?nteses das ZSM-5 tamb?m foram realizadas na aus?ncia de direcionador
org?nico de estutura, assistido pelo m?todo de indu??o por semente na forma de p?,
submetidas a 180 ?C, por 27 h, sendo os per?odos de interrup??o da cristaliza??o em 8,
12 e 16 h para adi??o do PHAPTMS. Os materiais foram sintetizados e caracterizados
pelos m?todos de difra??o de raios X (DRX), espectroscopia na regi?o do infravermelho
por transformada de Fourier (FTIR), an?lise t?rmica (TG/DTG), acidez superficial
medidas atrav?s da dessor??o de n-butilamina por termogravimetria (TG) e FTIR,
microscopia eletr?nica de varredura (MEV) e adsor??o de nitrog?nio. Ainda foi realizado
um estudo do comportamento cin?tico atrav?s da termogravimetria dos RAT, PEAD e
sobre os catalisadores. Atrav?s do modelo cin?tico model-free, utilizando as curvas
integrais TG, foram estimados a energia de ativa??o, as taxas de convers?o e o tempo
degrada??o dos res?duos em fun??o da temperatura. Notou-se que para os materiais
sintetizados com 15 mol% de PHAPTMS nos per?odos de 8, 12 e 16 h apresentaram
maiores concentra??es dos s?tios ativos, acidez superficial, tornando promissores na
degrada??o de PEAD. O estudo cin?tico feito em PEAD pelo m?todo Vyazovkin revelou
uma menor energia de ativa??o para o material HZ5 15 mol% no per?odo de 16 h.
Tamb?m foi revelado um abaixamento da energia de ativa??o quando utilizou esse
material no estudo cin?tico para o RAT. Na pir?lise t?rmica e termocatal?tica dos res?duos
realizadas nas temperaturas de 500 ?C, 475 ?C, 450 ?C. Foi escolhido para aplica??o na
pir?lise termocatal?tica, o material, (HZ5 15 mol% 16 h), por apresentar melhor acidez e
menor energia requerida para a degrada??o de PEAD. Na pir?lise termocatal?tica sobre
PEAD proporcionou seletividade de produtos com valores agregados, os quais podem ser
utilizados na ind?stria petroqu?mica. Na pir?lise termocatal?tica de RAT este material
potencializou as faixas de hidrocarbonetos de C1-C4; C5-C12, C13-C19 referentes ao GLP, gasolina e diesel. Proporcionando melhores cargas no processo e reduzindo os res?duos
gerados durante o refino de petr?leo. / The petroleum industry generates different residues and zeolites are of great
importance in the treatment and processing of residues of the petroleum refining and
petrochemical industry for having peculiar properties. In this context, this paper reports
the zeolites study ZSM-5 with hierarchically structures of pores, synthesized using as
silanizante agent phenylaminopropyl trimethoxysilane (PHAPTMS) at concentrations of
15mol%, 17mol% and 20mol%, aiming at implementing the best material in thermo
catalytic pyrolysis of the waste generated of the petroleum industry. The synthesis of
ZSM-5 were also conducted without organic template, assisted by the seed induction
method in the form of powder, subjected to 180 ?C for 27 h, the crystallization interrupt
periods at 8, 12 and 16 h for addition of PHAPTMS. The materials were synthesized and
characterized by the methods of X-ray diffraction (XRD), infrared spectroscopy (FTIR),
thermal analysis (TG / DTG), surface acidity measured by n-butylamine desorption
thermogravimetric analysis (TG) and FTIR, scanning electron microscopy (SEM),
nitrogen adsorption. The kinetic study by thermogravimetry of pure RAT and HDPE
waste was performed with and without catalyst. Through model-free kinetic method using
the integral curves TG, were estimated activation energy, conversion rates and time
degradation of waste in function of temperature. It was noted that for the materials
synthesized with 15mol% of PHAPTMS in periods of 8, 12 and 16h showed higher
concentrations of the active sites, surface acidity, making promising in HDPE
degradation. The kinetic study of HDPE by Vyazovkin method showed a lower activation
energy for the HZ5 15mol% material in the 16 h period. Also a lowering of the activation
energy was revealed when used this material in the kinetic study for the RAT. In the
thermal pyrolysis and thermalcatalytic of waste carried out at temperatures of 500 ?C,
475 ?C, 450 ?C. It was chosen for use in thermalcatalytic pyrolysis, the material (HZ5
15mol% 16h) due to better acidity and lower energy required for the degradation of
HDPE. In thermalcatalytic pyrolysis of HDPE selectivity afforded products with added
values, which can be used in the petrochemical industry. In thermalcatalytic pyrolysis
RAT This material potentiated C1-C4 hydrocarbon groups; C5-C12, C13-C19 regarding the
LPG, gasoline and diesel. Providing better loads in the process and reducing the waste
generated during petroleum refining.
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