Academic literature on the topic 'Zinc aluminate'

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Journal articles on the topic "Zinc aluminate"

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Alvarez-Pérez, M. A., M. García-Hipolito, J. de La Fuente Hernández, et al. "Biocompatibility of Zinc Aluminate Nanostructured Material." Journal of Nano Research 5 (February 2009): 169–76. http://dx.doi.org/10.4028/www.scientific.net/jnanor.5.169.

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We have used zinc aluminate nanostructured films deposited by spray pyrolysis to determine its biocompatibility assessed by cells attachment and cell differentiation. Cell attachment onto zinc aluminate showed an increase of 53, 81 and 86% at 180, 300 and 420 minutes (p<0.05) when compared to controls. Mineralization was analyzed at 5 and 14 days of culture by scanning electron microscopy, microanalysis and atomic force microscopy. Our results showed in experimental culture a higher density of mineral-like tissue with small needle-shaped crystal and granular nanoparticles with preferential
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Strohmeier, Brian R. "Zinc Aluminate (ZnAl2O4) by XPS." Surface Science Spectra 3, no. 2 (1994): 128–34. http://dx.doi.org/10.1116/1.1247773.

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Sampath, Suresh K., and James F. Cordaro. "Optical Properties of Zinc Aluminate, Zinc Gallate, and Zinc Aluminogallate Spinels." Journal of the American Ceramic Society 81, no. 3 (2005): 649–54. http://dx.doi.org/10.1111/j.1151-2916.1998.tb02385.x.

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Sampath, Suresh K., D. G. Kanhere, and Ravindra Pandey. "Electronic structure of spinel oxides: zinc aluminate and zinc gallate." Journal of Physics: Condensed Matter 11, no. 18 (1999): 3635–44. http://dx.doi.org/10.1088/0953-8984/11/18/301.

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Mohammed, Hothama, and Raad Rasool. "Structural Properties of Zinc Aluminate ZnAl2O4 Compound." Rafidain Journal of Science 28, no. 3 (2019): 33–39. http://dx.doi.org/10.33899/rjs.2019.163146.

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Li, Zushu, Shaowei Zhang, and William Edward Lee. "Molten salt synthesis of zinc aluminate powder." Journal of the European Ceramic Society 27, no. 12 (2007): 3407–12. http://dx.doi.org/10.1016/j.jeurceramsoc.2007.02.195.

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Lisovskii, S. V., A. V. Meganov, V. R. Khrustov, and V. V. Ivanov. "Ultraviolet cathodoluminescence of pure zinc aluminate ZnAl2O4." Journal of Physics: Conference Series 1410 (December 2019): 012089. http://dx.doi.org/10.1088/1742-6596/1410/1/012089.

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Yang, Chenguang, Andrew Thron, and Ricardo H. R. Castro. "Grain boundary strengthening in nanocrystalline zinc aluminate." Journal of the American Ceramic Society 102, no. 11 (2019): 6904–12. http://dx.doi.org/10.1111/jace.16512.

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Popovic, J., E. Tkalcec, B. Grzeta, and S. Kurajica. "Structural study of Co-doped zinc aluminate." Acta Crystallographica Section A Foundations of Crystallography 64, a1 (2008): C542. http://dx.doi.org/10.1107/s0108767308082597.

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Phifer, Carol C. "The structure of barium zinc aluminate glasses." Journal of Non-Crystalline Solids 152, no. 2-3 (1993): 157–60. http://dx.doi.org/10.1016/0022-3093(93)90245-s.

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Dissertations / Theses on the topic "Zinc aluminate"

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SANTOS, Patrícia Tatiana Araújo dos. "Novos materiais híbridos a base de ZnAl2O4 dopados com európio." Universidade Federal de Campina Grande, 2011. http://dspace.sti.ufcg.edu.br:8080/jspui/handle/riufcg/1802.

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Submitted by Maria Medeiros (maria.dilva1@ufcg.edu.br) on 2018-09-25T15:07:35Z No. of bitstreams: 1 PATRÍCIA TATIANA ARAÚJO DOS SANTOS - TESE (PPGEP) 2011.pdf: 1900230 bytes, checksum: 89561c399b083520a1b499f7b2a0e152 (MD5)<br>Made available in DSpace on 2018-09-25T15:07:35Z (GMT). No. of bitstreams: 1 PATRÍCIA TATIANA ARAÚJO DOS SANTOS - TESE (PPGEP) 2011.pdf: 1900230 bytes, checksum: 89561c399b083520a1b499f7b2a0e152 (MD5) Previous issue date: 2011<br>Capes<br>Nanopartículas de ZnAl1,9Eu0,1O4 foram modificadas a superfície usando agentes amino-silanos, e funcionalizadas a partir de monômero
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FURTADO, Cristiane Miranda. "Efeito da funcionalização com quitosana e glutaraldeído para obtenção de materiais híbridos a partir do ZnAl1,95(Yb:Er)0,05O4, visando aplicações biotecnológicas." Universidade Federal de Campina Grande, 2013. http://dspace.sti.ufcg.edu.br:8080/jspui/handle/riufcg/1901.

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Submitted by Maria Medeiros (maria.dilva1@ufcg.edu.br) on 2018-10-05T11:15:00Z No. of bitstreams: 1 CRISTIANE MIRANDA FURTADO - TESE (PPGEP) 2013.pdf: 8542186 bytes, checksum: dd770c02b3fb0777b254739165ed99da (MD5)<br>Made available in DSpace on 2018-10-05T11:15:00Z (GMT). No. of bitstreams: 1 CRISTIANE MIRANDA FURTADO - TESE (PPGEP) 2013.pdf: 8542186 bytes, checksum: dd770c02b3fb0777b254739165ed99da (MD5) Previous issue date: 2013-07-11<br>CNPq<br>A utilização de nanopartículas inorgânicas contendo propriedades luminescentes (NPLs) tem recebido uma atenção especial devido a sua utilização p
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Stringhini, Fabiane Marconato. "SÍNTESE DE ALUMINATO DE ZINCO (ZnAl2O4) PELO MÉTODO DE COMPLEXAÇÃO METAL-QUITOSANA E SEU USO COMO FOTOCATALISADOR." Universidade Federal de Santa Maria, 2013. http://repositorio.ufsm.br/handle/1/7975.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>In this work, the synthesis of the oxide zinc aluminate spinel (ZnAl2O4) was realized by the metal-chitosan complexation method in different calcinations temperatures with the purpose of studying their influence in the physical properties of the material. The powders obtained were characterized by X-ray diffraction (XRD), infrared spectroscopy (FTIR), nitrogen adsorption-dessorption by the Brunauer-Emmett-Teller (BET) method, scanning electron microscopy (SEM) and differential thermal analysis (DTA). This material was used as catal
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Huang, Sui-Yang. "Elaboration et caractérisation de nouveaux matériaux ferriélectriques ou pyroélectriques de type BaAl2O4." Phd thesis, Université Sciences et Technologies - Bordeaux I, 1993. http://tel.archives-ouvertes.fr/tel-00136415.

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De nouveaux matériaux à base de BaAl2O4 et BaZnGeO4 ont été caractérisés. BaAl2O4 et les phases dérivées sont ferriélectriques: la polarisation spontanée possède deux composantes de sens opposes et d'intensités différentes. Un modèle a été propose pour justifier l'apparition d' une phase non stoechiométrique dérivée de BaAl2O4.BaZnGeO4 est pyroélectrique a 300K; cinq transitions de phase ont été mises en évidence. Les céramiques de BaZnGeO4 se polarisent spontanément au cours du traitement thermique en raison du caractère piezoélectrique du matériau.
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Mrad, Mary. "La production d'hydrogène via la valorisation de la biomasse par reformage catalytique du méthanol." Thesis, Littoral, 2011. http://www.theses.fr/2011DUNK0409.

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Dans le but d'étudier la production d'hydrogène via la réaction de vaporeformage catalytique du méthanol et de déterminer les différents paramètres influençant la réaction, la performance des catalyseurs Cu-Zn/CeO₂-Al₂O₃ a été évaluée. L'imprégnation du cuivre sur la cérine ou l'alumine, montre de meilleurs performances catalytiques que le zinc imprégné sur ces mêmes supports. En présence de la cérine, l'activité a été liée à la dispersion des espèces Cu²⁺ isolés en interaction avec la matrice, qui se réduisent dans la phase de prétraitement du catalyseur. En présence de l'alumine, des espèces
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Breteau, Jean-Marc. "Etude de materiaux dopes ni**(2+) et co**(2+) pour laser accordable a fonctionnement continu dans le proche infrarouge." Paris 6, 1986. http://www.theses.fr/1986PA066357.

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Les composes mgf::(2): ni, mgf::(2): co, kznf::(3): ni, kznf::(3): co et mga1::(2)o::(4): ni font l'objet d'une etude spectroscopique pour determiner leurs caracteristiques en tant que materiaux pour laser accordable a fonctionnement continu dans le proche i. R. (1 mu m a 2 mu m). Nous montrons le role de la concentration en ions actifs sur l'intensite et la duree de vie de fluorescence i. R. Ainsi que l'importance des transferts d'energie et de la reabsorption dans l'etat excite. Pour l'ensemble des materiaux, les transitions radiatives et non radiatives font l'objet d'une etude approfondie q
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Clavijo, William. "Nanowire Zinc Oxide MOSFET Pressure Sensor." VCU Scholars Compass, 2014. http://scholarscompass.vcu.edu/etd/625.

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Fabrication and characterization of a new kind of pressure sensor using self-assembly Zinc Oxide (ZnO) nanowires on top of the gate of a Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET) is presented. Self-assembly ZnO nanowires were fabricated with a diameter of 80 nm and 800 nm height (80:8 aspect ratio) on top of the gate of the MOSFET. The sensor showed a 110% response in the drain current due to pressure, even with the expected piezoresistive response of the silicon device removed from the measurement. The pressure sensor was fabricated through low temperature bottom up ultrahig
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Burgess, Claire Hannah. "Atomic layer deposition of alumina and zinc oxide for optoelectronic devices." Thesis, Imperial College London, 2016. http://hdl.handle.net/10044/1/58239.

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Atomic layer deposition (ALD) uses surface reactions of gaseous precursors to grow thin films of materials. Exceptional uniformity and thickness control is possible due to the separation of the different precursors, allowing each to undergo reactions with substrate surface groups until, on chemisorption of a complete monolayer, self-termination occurs. Purging after the precursor release removes by-products and remaining precursor, ensuring that the material growth proceeds layer-by-layer. These and other benefits such as relatively low deposition temperatures, and the ability to coat large ar
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Alves, Camila Almeida. "Efeito da adição de ZnO em catalisadores Ni-Al2O3, Ni-CeO2, Ni-MgO e Ni-ZrO2 para reação de reforma seca de metano." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/75/75134/tde-09122014-110701/.

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Devido a crescente preocupação com relação ao efeito estufa e com o objetivo de obter produtos de maior valor agregado a partir dos gases CH4 e CO2, este trabalho estudou catalisadores de níquel suportados em diferentes óxidos (Al2O3, CeO2, MgO e ZrO2) promovidos com ZnO aplicados na reação de reforma seca de metano para obter gás de síntese (H2 + CO). Primeiramente foram estudados catalisadores de níquel suportados em ZrO2 dopados com diferentes teores de zinco: 0%, 5%, 12,5% e 25% a fim de selecionar o catalisador mais promissor para estudos posteriores. Também foram utilizados dois métodos
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Flura, Aurélien. "Réduction sélective catalytique des NOx par des composés oxygènes." Poitiers, 2011. http://nuxeo.edel.univ-poitiers.fr/nuxeo/site/esupversions/e54ad33f-a463-4cb3-bb36-07c5b01f48c3.

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Les moteurs Diesels connaissent un intérêt récent tout particulier car ils rejettent moins de CO2 que les moteurs essences à puissance égale, du fait qu'ils travaillent en "mélange pauvre", i. E. En excès d'oxygène. Ils présentent cependant l'inconvénient de former des NOx (NO et NO2), qui sont des polluants difficilement réductibles en azote en milieu oxydant. L'objectif de cette thèse est de proposer un catalyseur actif en réduction des NOx par l'éthanol (EtOH-SCR) à 200°C, qui est la température moyenne d'un échappement de moteur Diesel. Afin de répondre à cette problématique, un catalyseur
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Books on the topic "Zinc aluminate"

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B, Chittum Charles, United States. Office of Aviation Medicine., and Civil Aeromedical Institute, eds. Performance demonstrations of zinc sulfide and strontium aluminate photoluminescent floor proximity escape path marking systems. U.S. Dept. of Transportation, Federal Aviation Administration, Office of Aviation Medicine, 1998.

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Book chapters on the topic "Zinc aluminate"

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Han, Dong-zhan, Er-wei Song, Li-juan Qi, and Xiao-ge Guan. "Optimization of Zinc Removal Process in Sodium Aluminate Solution Based on Orthogonal Experiment." In The Minerals, Metals & Materials Series. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-65396-5_5.

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Doesburg, E. B. M., R. H. Höppener, B. de Koning, Xu Xiaoding, and J. J. F. Scholten. "Preparation and Characterization of Copper/Zinc Oxide/Alumina Catalysts for Methanol Synthesis." In Preparation of Catalysts IV, Proceedings of the Fourth International Symposium. Elsevier, 1987. http://dx.doi.org/10.1016/s0167-2991(08)65452-x.

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Silva, Erivane Oliveira da, Guilherme Leocárdio Lucena, and Max Rocha Quirino. "OBTENÇÃO DE ALUMINATO DE ZINCO ATRAVÉS DO MÉTODO HIDROTÉRMICO ASSISTIDO POR MICRO-ONDAS E APLICAÇÃO COMO CATALISADOR NA OBTENÇÃO DO BIODIESEL." In Impactos das Tecnologias nas Engenharias 5. Antonella Carvalho de Oliveira, 2019. http://dx.doi.org/10.22533/at.ed.95419150319.

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Conference papers on the topic "Zinc aluminate"

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Mahajan, Rubby, Sandeep Kumar, Ram Prakash, and Vinay Kumar. "Synthesis and luminescent properties of Sm3+ doped zinc aluminate phosphor." In 2ND INTERNATIONAL CONFERENCE ON CONDENSED MATTER AND APPLIED PHYSICS (ICC 2017). Author(s), 2018. http://dx.doi.org/10.1063/1.5032544.

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Sunder, Shyam, Sunil Rohilla, Sushil Kumar, et al. "Structural Characterization of Spinel Zinc Aluminate Nanoparticles Prepared By Coprecipitation Method." In INTERNATIONAL CONFERENCE ON ADVANCES IN CONDENSED AND NANO MATERIALS (ICACNM-2011). AIP, 2011. http://dx.doi.org/10.1063/1.3653640.

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Siragam, Srilali, R. S. Dubey, and Lakshman Pappula. "Synthesis & Study of Zinc Titanium Aluminate Nanoceramic Composite for Patch Antenna Application." In 2019 IEEE International WIE Conference on Electrical and Computer Engineering (WIECON-ECE). IEEE, 2019. http://dx.doi.org/10.1109/wiecon-ece48653.2019.9019915.

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Baiju, V., Dedhila Devadathan, P. Rejani, G. Sajeevkumar, and R. Raveendran. "Effect of annealing temperature in the purity of zinc aluminate synthesized by solution combustion method." In INTERNATIONAL CONFERENCE ON RECENT TRENDS IN THEORETICAL AND APPLIED PHYSICS: ICRTTAP. AIP Publishing, 2021. http://dx.doi.org/10.1063/5.0058365.

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Rivera, Johan, and Ongi Englander. "Mechanical and Thermal Properties of Highly Organized Nanowire-Alumina Nanocomposites." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-38186.

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The use of porous anodic alumina allows for the fabrication of highly ordered unidirectional nanowire composites. Sol gel deposition was used in the successful fabrication of zirconia-alumina and zinc oxide-alumina nanocomposites. Silicon-alumina and germanium-alumina nanocomposites were fabricated via catalyst-assisted chemical vapor deposition. The mechanical and thermal properties of these alumina nanocomposites were investigated. The Vickers hardness of the different nanocomposites was established by means of microindentation. Vickers testing was performed at room temperature and after spe
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Moreno, Gilbert, Steven J. Oldenburg, Seung M. You, and Joo H. Kim. "Pool Boiling Heat Transfer of Alumina-Water, Zinc Oxide-Water and Alumina-Water+Ethylene Glycol Nanofluids." In ASME 2005 Summer Heat Transfer Conference collocated with the ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems. ASMEDC, 2005. http://dx.doi.org/10.1115/ht2005-72375.

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This investigation conducts pool boiling experiments under saturated conditions (Tsat = 60 °C) using nanofluids as the coolants. Three different nanofluids were tested including zinc oxide (ZnO)-water, aluminum oxide (Al2O3)-water and aluminum oxide (Al2O3)-water+ethylene glycol (ethylene glycol solution). At saturation (Tsat = 60°C), the pool boiling performance of the two pure water based nanofluids were similar. The maximum CHF enhancement as compared to the predicted Zuber’s [1] CHF evaluated at an equivalent saturation temperature is ∼180% for Al2O3-water nanofluids and ∼240% for ZnO-wate
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Cambrea, Lee R., Daniel C. Harris, Steven M. Goodrich, Mark Parish, and Marina R. Pascucci. "Slow crack growth study of polycrystalline alumina and multispectral zinc sulfide." In SPIE Defense + Security, edited by Brian J. Zelinski. SPIE, 2017. http://dx.doi.org/10.1117/12.2261102.

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Myers, Philip D., D. Yogi Goswami, and Elias Stefanakos. "Molten Salt Spectroscopy for Quantification of Radiative Absorption in Novel Metal Chloride-Enhanced Thermal Storage Media." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-40157.

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This study describes the development and characterization of novel high-temperature thermal storage media, based on inclusion of transition metal chlorides in the potassium-sodium chloride eutectic system, (K-Na)Cl (melting temperature of 657°C, latent heat of 278 J/g). At the melting temperature of (K-Na)Cl, infrared (IR) radiation can play a major role in the overall heat transfer process — 90 percent of spectral blackbody radiation falls in the range of 2 to 13 μm. The authors propose inclusion of small amounts (less than 0.2 wt %) of IR-active transition metal chlorides to increase radiati
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TEIXEIRA, J. F. A., and M. N. SOUSA. "PREPARAÇÃO DE ALUMINATO DE ZINCO. EMPREGO COMO SUPORTE DE CATALISADOR DE K PARA REAÇÃO DE TRANSESTERIFICAÇÃO E PRODUÇÃO DE BIODIESEL." In XXII Congresso Brasileiro de Engenharia Química. Editora Blucher, 2018. http://dx.doi.org/10.5151/cobeq2018-pt.0975.

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Peres, Sérgio, and Alex Green. "Catalytic Indirectly Heated Gasification of Bagasse." In ASME 1998 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/98-gt-161.

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The catalytic indirectly heated gasification of bagasse was investigated in this study. The quality of the gaseous fuel was assessed using the total energy analysis of the gas, in which both heat content and total yields of the gas produced from the gasification of bagasse are analyzed at temperatures ranging from 700 to 1000°C. Untreated bagasse gasification was used as a baseline for the investigation of the effect of catalysts on the gasification process. The total energy analysis showed a significant improvement of gas quality due to increase of temperature and due to the use of alumina-zi
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