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Analysis of the biodiesel production yield from waste frying oil

Urbina-Suarez, Nestor Andres; Acevedo, Astrid; Acevedo Paez, Juan Camilo; Arenas, Erika; Becerra, L. C. (Journal of Physics: Conference SeriesReino Unido, 2018-09)

This research sought to produce biodiesel from waste frying oil (WFO) from chicken grills by using chemical transesterification to evaluate quality conditions and the yield of the biodiesel obtained. For this, acid ...
Enzymatic Transesterification of Waste Frying Oil from Local Restaurants in East Colombia Using a Combined Lipase System

Acevedo Paez, Juan Camilo; González-Delgado, Angel Darío; Urbina-Suarez, Nestor Andres; Rangel-Basto, Yeily Adriana; Ferreira, Mary (Applied SciencesSuiza, 2020-05-21)

The search for innovation and biotechnological strategies in the biodiesel production chain have become a topic of interest for scientific community owing the importance of renewable energy sources. This work aimed to ...
Thermodynamics performance optimization of a hybrid solar gas turbine power plant in Colombia

Moreno Gamboa, Faustino; Acevedo Paez, Juan Camilo; Sanin-Villa, Daniel (Journal of Physics: Conference SeriesReino Unido, 2022-02-10)

A thermodynamic model is presented for evaluation of a solar hybrid gas-turbine power plant. The model uses variable ambient temperature and estimates direct solar radiation at different day times. The plant is evaluated ...

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Analysis of the biodiesel production yield from waste frying oil
...
Urbina-Suarez, Nestor Andres | 2018-09

This research sought to produce biodiesel from waste frying oil (WFO) from chicken grills by using chemical transesterification to evaluate quality conditions and the yield of the biodiesel obtained. For this, acid esterification and basic transesterification were applied under the following conditions: reaction temperature 60°𝐶, catalyst concentration of 1% (m/m) KOH, oil:alcohol 1: 6 𝑚𝑜𝑙𝑎𝑟 𝑟𝑎𝑡𝑖𝑜, and two reaction times (55 𝑎𝑛𝑑 70𝑚𝑖𝑛) for the transesterification. The physicochemical properties of the raw material were analyzed (i.e., density, humidity, kinematic viscosity, fatty acid profile, acidity index, peroxides, and saponification) where the WFO showed high contents of oleic acid (42.45%) and palmitic acid (33.52%), which are fundamental for biodiesel production. Chemical transesterification under the conditions of 60°𝐶, 1% KOH, and 70𝑚𝑖𝑛 obtained the best yield by presenting a high conversion percentage (96.15%) and an acid number of 1.33𝑚𝑚𝐾𝑂𝐻/𝑔, according to ASTM D6751 and EN 14214 international standards.

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Enzymatic Transesterification of Waste Frying Oil from Local Restaurants in East Colombia Using a Combined Lipase System
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Acevedo Paez, Juan Camilo | 2020-05-21

The search for innovation and biotechnological strategies in the biodiesel production chain have become a topic of interest for scientific community owing the importance of renewable energy sources. This work aimed to implement an enzymatic transesterification process to obtain biodiesel from waste frying oil (WFO). The transesterification was performed by varying reaction times (8 h, 12 h and 16 h), enzyme concentrations of lipase XX 25 split (14%, 16% and 18%), pH of reaction media (6, 7 and 8) and reaction temperature (35, 38 and 40 ◦C) with a fixed alcohol–oil molar ratio of 3:1. The optimum operating conditions were selected to quantify the amount of fatty acid methyl esters (FAMEs) generated. The highest biodiesel production was reached with an enzyme concentration of 14%, reaction time of 8 h, pH of 7 and temperature of 38 ◦C. It was estimated a FAMEs production of 42.86% for the selected experiment; however, best physicochemical characteristics of biodiesel were achieved with an enzyme concentration of 16% and reaction time of 8 h. Results suggested that enzymatic transesterification process was favorable because the amount of methyl esters obtained was similar to the content of fatty acids in the WFO.

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Thermodynamics performance optimization of a hybrid solar gas turbine power plant in Colombia
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Moreno Gamboa, Faustino | 2022-02-10

A thermodynamic model is presented for evaluation of a solar hybrid gas-turbine power plant. The model uses variable ambient temperature and estimates direct solar radiation at different day times. The plant is evaluated in Barranquilla, Colombia, with a solar concentration system and a combustion chamber that burns natural gas. The hybrid system enables to maintain almost constant the power output throughout day. The model allows optimizing the different plant parameters and evaluating maximum performance point. This work presents pressure ratio ranges where the maximum values of overall efficiency, power output, thermal engine efficiency and fuel conversion rate are found. The study is based on the environmental conditions of Barranquilla, Colombia. The results obtained shows that optimum pressure ratio range for power output and overall efficiency is between 6.4 and 8.3, when direct solar radiation its maximum at noon. This thermodynamic analysis is necessary to design new generations of solar thermal power plants.

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Listar B. Investigación por autor "c75ee0f7deaf58b647b6401fef886aae"

Analysis of the biodiesel production yield from waste frying oil

Enzymatic Transesterification of Waste Frying Oil from Local Restaurants in East Colombia Using a Combined Lipase System

Thermodynamics performance optimization of a hybrid solar gas turbine power plant in Colombia

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Analysis of the biodiesel production yield from waste frying oil

Enzymatic Transesterification of Waste Frying Oil from Local Restaurants in East Colombia Using a Combined Lipase System

Thermodynamics performance optimization of a hybrid solar gas turbine power plant in Colombia

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Listar B. Investigación por autor "c75ee0f7deaf58b647b6401fef886aae"

Analysis of the biodiesel production yield from waste frying oil ﻿

Enzymatic Transesterification of Waste Frying Oil from Local Restaurants in East Colombia Using a Combined Lipase System ﻿

Thermodynamics performance optimization of a hybrid solar gas turbine power plant in Colombia ﻿

Envíos recientes

Analysis of the biodiesel production yield from waste frying oil

Enzymatic Transesterification of Waste Frying Oil from Local Restaurants in East Colombia Using a Combined Lipase System

Thermodynamics performance optimization of a hybrid solar gas turbine power plant in Colombia

Portales Institucionales

Analysis of the biodiesel production yield from waste frying oil

Enzymatic Transesterification of Waste Frying Oil from Local Restaurants in East Colombia Using a Combined Lipase System

Thermodynamics performance optimization of a hybrid solar gas turbine power plant in Colombia