Ciencia Tecnologia y Futuro最新文献

{"title":"Comparative study of the normal visbreaking process and the thermal fixed-bed process applied on Colombian heavy oils","authors":"Judith Rocío Santa Jaimes, J. Gómez","doi":"10.29047/01225383.34","DOIUrl":"https://doi.org/10.29047/01225383.34","url":null,"abstract":"espanolEl aumento en las reservas de crudos pesados, la escasez de crudos livianos, la demanda de productos limpios y el incremento de material residual o fondos, hacen necesaria la implementacion o adaptacion de tecnologias que procesen crudos pesados de forma eficiente. En este sentido se plantea la modificacion del esquema actual de viscorreduccion adaptandole un lecho fijo dentro del reactor para estudiar posibles modificaciones en los diferentes procesos termicos, a fin de incrementar y mejorar sus rendimientos con miras a la obtencion de productos mas valiosos a partir de crudos pesados. La presente investigacion se realizo mediante pruebas a nivel de planta piloto en la unidad de viscorreduccion de Ecopetrol S.A. - Instituto Colombiano del Petroleo (ICP), la cual brinda la posibilidad de comparar el proceso de viscorreduccion normal frente al proceso de viscorreduccion con lecho fijo como proceso termico. Ambos procesos se compararon en cuanto al incremento del rendimiento de destilados medios y propiedades de calidad de los productos obtenidos. La comparacion se hizo bajo las mismas condiciones de flujo, direccion de flujo (ascendente), presion, temperatura y tipo de crudo. Los resultados revelaron que el proceso de viscorreduccion con lecho fijo logro convertir mas fracciones pesadas en destilados (4 a 7%), comparado con el proceso de viscorreduccion normal. EnglishThe rise in heavy oil reserves, the scarceness of light oils, the demand for clean products and the increase in residual material or bottoms make it necessary to implement or adapt technologies to process heavy oils efficiently. To this end, the modification of the current visbreaking system has been proposed, consisting of adapting a fixed bed inside the reactor in order to study possible modifications in the different thermal processes to increment and improve performance with the purpose of obtaining more valuable products from heavy oils. This research was conducted through testing at the pilot plant level in the visbreaking unit of Ecopetrol S.A. - Instituto Colombiano del Petroleo (ICP), which provides the possibility of comparing the normal visbreaking process to the fixed-bed visbreaking process as a thermal process. Both processes are carried out in comparison to the increase in the performance of middle distillates and the quality properties of the products obtained. The comparison was completed under the same conditions of flow, flow direction (ascending), pressure, temperature and oil type. The results revealed that the fixed-bed visbreaking process managed to convert more heavy fractions into distillates (4 to 7%) compared to the normal visbreaking process. portuguesO aumento nas reservas de crus pesados, a escassez de crus leves, a demanda de produtos limpos e o aumento de material residual ou fundos, fazem necessaria a implantacao ou adaptacao de tecnologias que processem crus pesados de forma eficiente. Neste sentido e proposta a modificacao do esquema atual de","PeriodicalId":10235,"journal":{"name":"Ciencia Tecnologia y Futuro","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79287724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A STATISTICAL ANALYSIS OF WIND SPEED DISTRIBUTION MODELS IN THE ABURRÁ VALLEY, COLOMBIA","authors":"Paula-Andrea Amaya-Martínez, A. Saavedra-Montes, Eliana I. Arango-Zuluaga","doi":"10.29047/01225383.36","DOIUrl":"https://doi.org/10.29047/01225383.36","url":null,"abstract":"T he probability density functions, that model the wind speed behavior in five urban places and one rural of the Aburra Valley in Antioquia, Colombia, are ...","PeriodicalId":10235,"journal":{"name":"Ciencia Tecnologia y Futuro","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83993031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Post-fracturing treatments design to redress the damage caused by fracturing fluid polymers","authors":"Fabián A. Carrascal, Zarith del Pilar Pachón Contreras, D. M. Velasco","doi":"10.29047/01225383.31","DOIUrl":"https://doi.org/10.29047/01225383.31","url":null,"abstract":"espanolSiete productos quimicos, de diferente naturaleza quimica, fueron evaluados como tratamientos post-fracturamiento hidraulico para remover el polimero retenido en la zona fracturada. Entre los productos evaluados se destacan tres productos usados por primera vez como componentes principales de tratamientos post-fracturamiento hidraulico. Las pruebas fueron realizadas a condiciones de los pozos productores del campo Chichimene, formacion K-1, operados por Ecopetrol S.A., ubicados en los Llanos Orientales Colombianos. Las pruebas realizadas incluyeron compatibilidad con los fluidos y las rocas de la formacion, la aplicacion de una nueva metodologia para cuantificar de forma directa la degradacion del polimero del fluido de fractura y la evaluacion de la estabilidad termica de los componentes principales de los tratamientos, entre otras. Finalmente, se realizaron pruebas de desplazamiento de los tratamientos post-fracturamiento a traves de medios porosos que simulaban rocas fracturadas para determinar su efectividad en la remocion del polimero retenido. Los resultados obtenidos muestran que la aplicacion de los tratamientos post-fracturamiento promovieron la recuperacion de aproximadamente un 40% del polimero total retenido en el sistema poroso, segun su aplicacion. Ademas, los valores de permeabilidad retenida mejoraron entre un 50 y 180%; obteniendose los mejores resultados empleando los productos quimicos usados por primera vez como tratamientos post-fracturamiento. EnglishSeven chemical products with different chemical properties were evaluated as post-fracturing treatments to remove the polymer retained in the pore system of the fracture and adjacent rock after hydraulic fracturing. Three of those chemical products were used for the first time to degrade the polymer in fracturing fluids. All laboratory tests were conducted under the Unit K-1 Chichimene oil-field conditions - located in Eastern Colombia, and operated by Ecopetrol S.A. Fluid-fluid and fluid-rock compatibility tests were performed. In order to evaluate the capacity of the post-fracturing treatments to degrade the polymer in the fracturing fluid, a new methodology for polymer quantification was implemented. The chemical and thermal stability of the post-fracturing treatments was assessed trough coreflooding experiments. Finally, the evaluations of the effectiveness of the post-fracturing treatments were performed and assessed with coreflooding experiments using fractured rocks as porous media. The coreflooding results showed that the post-fracturing treatments evaluated promoted the recovery of about 40% of the total polymer retained in the porous system, and improved the retained permeability in values between 50 and 180%. The best obtained results came from the first-time usage of chemical products as post-fracturing treatments. portuguesSete produtos quimicos, de diferente natureza quimica, foram avaliados como tratamentos pos-fratura hidraulica para remover o polimero ret","PeriodicalId":10235,"journal":{"name":"Ciencia Tecnologia y Futuro","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75420887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"OPTIMAL DESIGN FOR AN ETHANOL PLANT COMBINING FIRST AND SECOND-GENERATION TECHNOLOGIES","authors":"Yailet Albernas-Carvajal, G. Corsano, Marlén Morales-Zamora, Meilyn González-Cortés, Ronaldo Santos-Herrero, E. González-Suárez","doi":"10.29047/01225383.35","DOIUrl":"https://doi.org/10.29047/01225383.35","url":null,"abstract":"The synthesis and optimal design of batch plants is addressed in this study. It was applied to the technology of conventional ethanol production in a Cuban distillery using the product of enzymatic hydrolysis of pretreated bagasse as another sugared substrate, starting from laboratory results. The optimal configuration of stages, the number of units in each stage, the unit sizes and minimum total production cost are obtained from the global optimization model and the proposed superstructure. This global model is a mixed integer nonlinear programming (MINLP) formulation, which is represented and resolved by the Professional Software, General Algebraic Modeling System (GAMS) version 23.5 applying DICOPT Solver. Different scenarios are analyzed: attaching pretreatment and enzymatic hydrolysis of bagasse to a conventional distillery plant, selling ethanol, or selling the furfural as by-product if there is a guaranteed market. With this, an actual net present value (VNA) of USD 44´893 358.7 and 1.51 years of Payback Period (PP) are obtained.","PeriodicalId":10235,"journal":{"name":"Ciencia Tecnologia y Futuro","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90822295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Review of studies on asphaltene - wax interaction and the effect thereof on crystalilization","authors":"Emiliano Ariza León, D. M. Velasco, A. C. Guerrero","doi":"10.29047/01225383.32","DOIUrl":"https://doi.org/10.29047/01225383.32","url":null,"abstract":"espanolSe presenta una revision del efecto que tienen los asfaltenos en la cristalizacion de parafinas, en las propiedades de crudos parafinicos y las consecuencias en el aseguramiento de flujo. Inicialmente se incluyen los estudios de cristalizacion de n-alcanos puros y de sus mezclas donde se ha podido entender como ocurre su precipitacion y transiciones de fases cristalinas, especialmente, por estudios de difraccion de rayos-X (DRX). Se analizan los resultados de estudios de cristalizacion en crudos y/o sus fracciones y como la presencia de los asfaltenos afecta sus propiedades. Sobre la influencia de los asfaltenos, los resultados no son concluyentes y en ocasiones contradictorios: algunos confirman su contribucion a disminuir el punto de fluidez, otros que lo aumenta y en algunos casos que no hay efecto. Resultados semejantes se han reportado para el punto de cristalizacion, la transicion de fases y propiedades reologicas. Tampoco se ha podido generalizar cual es la influencia de la estructura quimica de los asfaltenos sobre las propiedades de los crudos. Se infiere que posiblemente se deba a la interaccion entre sus cadenas alifaticas con las parafinas y se ha establecido que existe sinergia en la coprecipitacion por la evidencia en los analisis de los depositos organicos. EnglishThis paper reviews the impact of asphaltenes on wax crystallization and on the properties of crude oils, and the consequences thereof on the flow assurance of waxy crude oil. It initially includes studies of the crystallization of both pure n-alkanes as well as the mixtures thereof, because they have led to an understanding of how their precipitation occurs along with their transitions of crystalline phases, particularly, by studies of X-ray diffraction (XRD). This is followed by the studies and results of crystallization in crude oils and/or the fractions thereof and how their properties are affected in the presence of asphaltenes. The results on the influence of asphaltenes are inconclusive and sometimes contradictory: some confirm that their presence decreases pour point, others affirm that it increases it and yet others say there is no effect. Similar results have been reported for properties such as crystallization point, phase transition and rheological properties. The influence of the chemical structure of asphaltenes on the change in crude oil properties has not been generalized either. It has been inferred that is possibly due to the interaction between aliphatic chains of asphaltenes and waxes, and it has been established that there is synergy in coprecipitation due to evidence in the analysis of organic deposits. portuguesE apresentada uma revisao do efeito que os asfaltenos tem na cristalizacao de parafinas, nas propriedades de crus parafinicos e nas consequencias na garantia de escoamento. Inicialmente sao incluidos os estudos de cristalizacao de n-alcanos puros e de suas misturas onde foi possivel entender como ocorre sua precipitacao e transicoes de ","PeriodicalId":10235,"journal":{"name":"Ciencia Tecnologia y Futuro","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86726249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Petroleum sulfonates preparation and evaluation for chemical enhanced oil recovery in colombian oil fields","authors":"Zarith del Pilar Pachón Contreras, F. Ruíz, Miguel Jose Rondon Anton, J. Prada, Freddy Alexander Pulido Solano","doi":"10.29047/01225383.33","DOIUrl":"https://doi.org/10.29047/01225383.33","url":null,"abstract":"espanolEn el presente trabajo se describe un metodo eficiente para la preparacion de sulfonatos de petroleo. Los sulfonatos de petroleo se prepararon a partir de cinco cortes de refineria diferentes y se caracterizaron por espectroscopia de infrarrojo y ultravioleta. Su afinidad relativa hidrofilica lipofilica se evaluo mediante la realizacion de comportamientos de fase. Los tensoactivos preparados se evaluaron en formulaciones para Recobro Quimico Mejorado demostrando que, bajo las condiciones de evaluacion, las relaciones de solubilizacion aumentan con la similitud estructural que existe entre el petroleo crudo y las moleculas del surfactante utilizado. Se confirma que, cuando se utilizan como surfactantes secundarios, los sulfonatos de petroleo aqui preparados permiten alcanzar parametros de solubilizacion relativamente elevados. EnglishAn efficient method for preparing petroleum sulfonates is described in this article. Petroleum sulfonates were prepared from five different refinery cuts and characterized by infrarred and ultra-violet spectroscopy. Their hydrophilic-lipophilic relative afinity was assessed by performing phase behavior scans. The prepared surfactants were evaluated in formulations for Chemical Enhanced Oil Recovery (CEOR), showing that, under the evaluation conditions, the solubilization ratios increase with the structural similarity between the crude oil and the surfactant molecules. It was confirmed that, when used as secondary surfactants, the petroleum sulfonates here prepared allow to achieve relatively high solubilization parameters. portuguesNo presente trabalho e descrito um metodo eficiente para a preparacao de sulfonatos de petroleo. Os sulfonatos de petroleo sao preparados a partir de cinco cortes de refinaria diferentes e sao caracterizados por espectroscopia de infravermelho e ultravioleta. Sua afinidade relativa hidrofilica lipofilica foi avaliada mediante a realizacao de comportamentos de fase. Os tensoativos preparados foram avaliados em formulacoes para Recuperacao Quimica Melhorada demonstrando que, sob as condicoes de avaliacao, as relacoes de solubilizacao aumentam com a semelhanca estrutural que existe entre o petroleo cru e as moleculas do surfactante utilizado. Confirma-se que, quando sao utilizados como surfactantes secundarios, os sulfonatos de petroleo aqui preparados permitem atingir parâmetros de solubilizacao relativamente elevados.","PeriodicalId":10235,"journal":{"name":"Ciencia Tecnologia y Futuro","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89080473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"NATURE OF THE ACTIVE PHASE IN HYDRODESULFURIZATION: MOLYBDENUM CARBIDE SUPPORTED ON ACTIVATED CARBON","authors":"Esneyder Puello-Polo, G. MónicaAyala, J. Brito","doi":"10.29047/01225383.41","DOIUrl":"https://doi.org/10.29047/01225383.41","url":null,"abstract":"Resumen en: This paper studies the effect of the presulfiding agent and the synthesis method on the catalytic activity of thiophene hydrodesulfurization (HDS), using...","PeriodicalId":10235,"journal":{"name":"Ciencia Tecnologia y Futuro","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91294961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study of acetone, butanol and ethanol liquid extraction from prepared aqueous solutions using membrane contactor technique","authors":"Karen Gómez, Liliana Carolina López Mendoza, L. Giraldo, C. M. Nova","doi":"10.29047/01225383.44","DOIUrl":"https://doi.org/10.29047/01225383.44","url":null,"abstract":"espanolLa produccion de butanol por via fermentativa usando Clostridium acetobutylicum genera mezclas acetona/butanol/etanol (ABE), las cuales alcanzan una concentracion promedio maxima entre 26 y 32.6 kg/m³, como resultado de la inhibicion por producto. Estas bajas concentraciones demandan el uso de sistemas de separacion eficientes que permitan la extraccion de ABE de forma continua. Este estudio evaluo la extraccion de ABE de soluciones acuosas preparadas con la tecnica de contactores de membrana usando solventes comerciales (eter de petroleo, hexano y tolueno) como agente extractor. Se analizo la influencia de la temperatura y la concentracion inicial de butanol sobre el proceso, en el rango de 30 - 40°C y 4.8 - 20 kg/m³ respectivamente, utilizando un diseno experimental de superficie de respuesta (central compuesto 2²+estrella), y encontrando valores optimos para estas variables basados en analisis en batch (42°C y 1.65 kg de 1-butanol/m³ como concentracion inicial). El analisis experimental se llevo a cabo utilizando Statgraphics Centurion XVI.I®. Se planteo un modelo matematico en estado transitorio, obteniendo % error de 14.4 y 12.2% para las concentraciones finales de acetona y butanol en el tolueno, respectivamente. Se concluye que esta tecnica de extraccion es posible para la recuperacion de acetona y butanol usando tolueno como solvente extractor, obteniendo coeficientes de particion de 0.761 para la acetona y 0.998 para el butanol. EnglishFermentative production of butanol using Clostridium acetobutylicum results in a mixture of acetone/ butanol/ethanol (ABE), which reaches a maximum concentration between 26 and 32.6 kg/m³, as a consequence of product inhibition. These low ABE concentrations demand an efficient separation system that allows the continuous ABE extraction. This study evaluated the extraction of ABE's prepared aqueous solutions with membrane contactors technique by using commercial extracting solvents (petroleum ether, hexane and toluene). The influence of temperature and initial concentration of butanol on the process was analyzed, in the range of 30 - 40°C and 4.8 - 20 kg/m³ respectively, using a response surface experimental design (central composite 2²+star), and finding the optimal values considering batch analysis (42°C and 1.65 kg of 1-butanol/m³ as initial concentration). The experimental analysis was carried out by using Statgraphics Centurion XVI.I®. The approach of a mathematical model was performed, obtaining an error of 14.4% and 12.2% for acetone and butanol final concentrations in toluene solvent phase, respectively. It was concluded that extraction is achievable for recovery of acetone and butanol, by using toluene as solvent extractor, and obtaining partition coefficients of 0.761 for acetone and 0.998 for butanol. portuguesA producao de butanol por via fermentativa usando Clostridium acetobutylicum gera misturas acetona/ butanol/etanol (ABE), as quais atingem uma concentracao media maxima entre 26 e 32","PeriodicalId":10235,"journal":{"name":"Ciencia Tecnologia y Futuro","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82739738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"THE CORROSION PROCESS OF P-110 STEEL IN STIMULATION FLUIDS USED IN THE OIL INDUSTRY","authors":"J. Calderon, Gloria-Fernanda Bonilla, J. Carreno","doi":"10.29047/01225383.39","DOIUrl":"https://doi.org/10.29047/01225383.39","url":null,"abstract":"were measured at 25 and 80°C, respectively. The hydrodynamic regime plays an important role in the corrosion of steel only in the disodium solution, where corrosion rates were increased at higher rotation speeds of the electrode. The cathodic depolarization effect is more important in the EDTA-Na2 than in the EDTA-Na4 solution, making it more corrosive.","PeriodicalId":10235,"journal":{"name":"Ciencia Tecnologia y Futuro","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77127600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"RHEOLOGICAL BEHAVIOR OF WATER-IN-OIL EMULSIONS OF HEAVY AND EXTRA-HEAVY LIVE OILS: EXPERIMENTAL EVALUATION","authors":"Libia-Sofia Sandoval-Rodríguez, W. Cañas-Marín, Ramiro Martínez-Rey","doi":"10.29047/01225383.37","DOIUrl":"https://doi.org/10.29047/01225383.37","url":null,"abstract":"Stable emulsions were prepared with heavy and extra-heavy live oils by using a set-up recently built at Ecopetrol S.A. - Instituto Colombiano del Petroleo (ICP). This equipment permits to prepare water-in-oil emulsions at reservoir conditions without any change on the overall hydrocarbon composition. The live emulsions were prepared with water contents up to 26% in volume. Then, a capillary viscometer was used to study the rheological behavior of these emulsions at different shear rates and pressures up to 24.2 MPa. The experimental results permit to conclude that the prepared and evaluated emulsions have a Newtonian behavior for the conditions of water contents, shear rates, pressures and temperature (60°C) here studied. For these emulsions, a logarithmic behavior of the viscosity with respect to pressure and water content was also observed.","PeriodicalId":10235,"journal":{"name":"Ciencia Tecnologia y Futuro","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86076537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}