Corrosion Behaviour of Copper in Various Grades of Palm Oil

2008 ◽  
Vol 45 (7) ◽  
pp. 348-351
Author(s):  
Mohammed Misbahul Amin
Keyword(s):  
Palm Oil ◽  
2012 ◽  
Vol 58 (2) ◽  
Author(s):  
W. B. Wan Nik ◽  
S. Syahrullail ◽  
R. Rosliza ◽  
M. M. Rahman ◽  
M. F. R. Zulkifli

The aim of this study is to determine the corrosion effect of palm oil methyl ester (POME) on aluminium alloy 5083 (AA5083). The static immersion test was carried out at 60°C for 68 days according to ASTM G–31–72. The corrosion analysis was done by using weight loss method and electrochemical test. The result from weight loss method shows the decreasing in weight loss of AA5083 which signifies the ability of POME to reduce corrosion rate. The electrochemical test shows the decreasing in polarization resistance,Rp, while the corrosion current densities, Icorr, increase. The corrosion rate reduces from 2.250mpy to 0.1946mpy. The low concentration of fatty acid C18:2 and high anti oxidant element contributes to the reduction of corrosion rate of AA5083 in POME.


2012 ◽  
Vol 576 ◽  
pp. 425-428
Author(s):  
Md Abdul Maleque

The aim of this paper is to investigate the corrosion behaviour of aluminium-copper-SiCp composite materials under palm oil biodiesel (POB). Corrosion behaviour test was performed using both weight loss and polarization methods for two different types of aluminium-copper-SiCp composite materials such as ACM 1(2% Cu, 20% SiC, and 78% Al) and ACM 2 (6% Cu, 20% SiC, and 72% Al). The materials were characterized using scanning electron microscope (SEM) for surface morphology. The results showed that corrosion rate of ACM 2 is higher than ACM 1 in presence of palm oil biodiesel due to the higher amount of copper in the composite which is more susceptible to corrosion. The surface morphology after corrosion test showed that chemical corrosion occurs on the surface due to the dominant of the fatty acid in the POB. Therefore, in this study it can be concluded that aluminium-copper-SiCp composite materials are susceptible to corrosion in biodiesel.


2019 ◽  
Vol 2 (1) ◽  
pp. 59-64
Author(s):  
Vincentius Vincentius ◽  
Evita H. Legowo ◽  
Irvan S. Kartawiria

Natural gas is a source of energy that comes from the earth which is depleting every day, an alternative source of energy is needed and one of the sources comes from biogas. There is an abundance of empty fruit bunch (EFB) that comes from palm oil plantation that can become a substrate for biogas production. A methodology of fermentation based on Verein Deutscher Ingenieure was used to utilize EFB as a substrate to produce biogas using biogas sludge and wastewater sludge as inoculum in wet fermentation process under mesophilic condition. Another optimization was done by adding a different water ratio to the inoculum mixture. In 20 days, an average of 6gr from 150gr of total EFB used in each sample was consumed by the microbes. The best result from 20 days of experiment with both biogas sludge and wastewater sludge as inoculum were the one added with 150gr of water that produced 2910ml and 2185ml of gas respectively. The highest CH 4 produced achieved from biogas sludge and wastewater sludge with an addition of 150gr of water to the inoculum were 27% and 22% CH 4 respectively. This shows that biogas sludge is better in term of volume of gas that is produced and CH percentage.


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