Splitting the exergy destructions of an olive oil refining plant into avoidable and unavoidable parts based on actual operational data

2016 ◽  
Vol 21 (3) ◽  
pp. 277 ◽  
Author(s):  
Elif Bozoglan ◽  
Zafer Erbay ◽  
Arif Hepbasli ◽  
Huseyin Gunerhan
Foods ◽  
2020 ◽  
Vol 9 (3) ◽  
pp. 292 ◽  
Author(s):  
Paolo Lucci ◽  
Valentina Bertoz ◽  
Deborah Pacetti ◽  
Sabrina Moret ◽  
Lanfranco Conte

The impact of the olive oil refining process on major antioxidant compound levels was evaluated by means of UHPLC analysis of lampante olive oils collected at different stages of the refining procedure (degumming, chemical and physical flash neutralization, bleaching, and deodorization). For this purpose, the evolution of the tocopherol fraction was investigated by means of the UHPLC-FL method, while the influence of the refining process on the total hydrolyzed phenolic content was assessed by measuring hydroxytyrosol and tyrosol levels after acid hydrolysis of the phenolic extracts. Refining was found to have a marked effect on total hydroxytyrosol and tyrosol contents, as they are completely removed in the early steps of the refining procedure. In contrast, the variation trends of tocopherols are not always clear-cut, and significant decreases in content from 7% to 16% were only revealed during refining in four out of nine samples. In addition, five of the nine refined oils showed final tocopherol concentrations higher than 200 mg/kg, the limit imposed by international standards regarding the content of such compounds in commercial olive oils. This study supports the need for a revision of the International Olive Oil Council (IOC) standard relative to the limit established for tocopherol addition to refined oils to avoid possible legal and economic trade issues.


2018 ◽  
Vol 7 (3.26) ◽  
pp. 19
Author(s):  
Nurul Sulaiha Sulaiman ◽  
Khairiyah Mohd-Yusof ◽  
Asngari Mohd-Saion

Malaysia is currently one of the biggest producers and exporters of palm oil and palm oil products. In the growth of palm oil industry in Malaysia, quality of the refined oil is a major concern where off-specification products will be rejected thus causing a great loss in profit. In this paper, predictive modeling of refined palm oil quality in one palm oil refining plant in Malaysia is proposed for online quality monitoring purposes. The color of the crude oil, Free Fatty acid (FFA) content, bleaching earth dosage, citric acid dosage, activated carbon dosage, deodorizer pressure and deodorizer temperature were studied in this paper. The industrial palm oil refinery data were used as input and output to the Artificial Neural Network (ANN) model. Various trials were examined for training all three ANN models using number of nodes in the hidden layer varying from 10 to 25. All three models were trained and tested reasonably well to predict FFA content, red and yellow color quality of the refined palm oil efficiently with small error. Therefore, the models can be further implemented in palm oil refinery plant as online prediction system.  


2013 ◽  
Vol 3 (4) ◽  
pp. 24-27
Author(s):  
A. V BELYaKOV

The article reports on the research results of wastewaters biological treatment at Novokuibyshevsk oil refining plant using the technology of nitrification - denitrification. The paper reveals the possibility of meeting modern requirements for treated water quality by nitrogen compounds while treating industrial wastewater without mixing it with municipal wastewater. Necessary dependencies and technological parameters for choosing the mode of experimental and production use of treatment structures by one-stage scheme with nitrification-denitrification are given.


2010 ◽  
Vol 34 (6) ◽  
pp. 476-493 ◽  
Author(s):  
Elif Bozoglan ◽  
Arif Hepbasli

2021 ◽  
Vol 12 (6) ◽  
pp. 8144-8151

A study on factors affecting biodiesel quality of agricultural by-products, namely palm oil derived using palm fatty acid distillate (PFAD), collected from the Oleen Palm Oil industrial refining plant. This PFAD showed free fatty acid content and a saponification value of 88.4 % and 204 mg KOH/g, respectively. An acid catalyst was successfully used to produce biodiesel in the esterification reaction, and a 97.11% conversion to biodiesel based on the European Standard EN 14214:2003 was achieved under the conditions (PFAD to methanol molar ratio 1:3.71 with 1.834 % H2SO4 catalyzed at 121 °C for 15 minutes). Overall, this novel process achieved highly enhanced FAME (95.82% to 97.31%) with a significantly increased reaction time (10 to 30 minutes) and catalyst requirements (1.834 % H2SO4).


1992 ◽  
Vol 69 (5) ◽  
pp. 477-480 ◽  
Author(s):  
P. Bondioli ◽  
C. Mariani ◽  
A. Lanzani ◽  
E. Fedeli ◽  
A. Mossa ◽  
...  

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