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Mostrando ítems 31-40 de 178
“diseño óptimo de condensador de doble entrada de alcohol etilico, en funcion del flujo de vapor”
(Universidad Nacional de Trujillo, 2016)
This study aimed to make a proposal of optimal design of a dual input capacitor ethyl alcohol, depending on the flow of alcohol vapor ascends the column distillation and rectification, to the condenser to recover the spirit ...
Determination of the process variables for adsorption and desorption of phosphate from wastewater by selective ion exchangers on magnetic particles
(2015-08-04)
In this study different process variables were evaluated for the adsorption and desorption of phosphate from wastewater by using selective ion exchangers with magnetic particles modi-fied with layered double hydroxides ...
Modelado y diseño de estrategia de estimación para un sistema de destilación por lotes del Laboratorio de Productos Naturales de la Universidad Nacional de Colombia sede Medellín
(Medellín - Minas - Maestría en Ingeniería - Automatización IndustrialDepartamento de Ingeniería Eléctrica y AutomáticaUniversidad Nacional de Colombia - Sede Medellín, 2020-10-01)
Batch distillation is an important process used in the chemical, pharmaceutical, biochemical and food industries to treat small quantities of materials with high added value. The main reason is its operational flexibility ...
Performance of a double-slope solar still for the concentration of lithium rich brines with concomitant fresh water recovery
(Elsevier, 2021-10-15)
Lithium recovery from brines has become a hot topic. The current evaporitic technology is slow, and serious environmental concern has been raised regarding the large volumes of water used, relating both to brine concentration ...
Caracterização de Compostos Polares no Petróleo por Espectrometria de Massas de Altíssima Resolução e Exatidão ESI(±)-FT-ICR MS
(Universidade Federal do Espírito SantoBRMestrado em QuímicaPrograma de Pós-Graduação em QuímicaUFES, 2012-03-09)
O petróleo é considerado a mistura natural mais complexa do mundo e por apresentar milhares de constituintes é um das matérias-primas mais desafiadoras para as análises químicas. Embora muitas técnicas venham sendo utilizadas ...
Water in oil (w/o) and double (w/o/w) emulsions prepared with spans: microstructure, stability, and rheology
(Springer, 2007-03)
The objective was to analyze the microstructure, stability, and rheology of model emulsions prepared with distilled water, refined sunflower oil, and different Spans (20, 40, 60, and 80) as emulsifiers. The effects of the ...
Process integration and control tied to economic optimization in biobutanol synthesis
(2016)
Diferentes esquemas de destilación integrados térmicamente fueron propuestos, y evaluados para la separación de butanol o etanol en el ambiente de simulación. Los requerimientos energéticos y las emisiones obtenidas de ...