Esterification free fatty acid in sludge palm oil using ZrO2/SO42− – rice husk ash catalyst

Author(s):  
Arif Hidayat ◽  
Bachrun Sutrisno
KOVALEN ◽  
2021 ◽  
Vol 7 (1) ◽  
pp. 83-88
Author(s):  
Musafira ◽  
Dzulkifli ◽  
Hikmah ◽  
Nizar

Mandar coconut oil is one of the coconut processed products, which has become superior product in West Sulawesi especially in Majene regency. Unfortunately, the Mandar coconut oil can’t be used more than a month because the water content and free fatty acid content of the oil have exceeded the maximum standard of SNI, so it can adversely affect on health. On the other hand, the existence of rice husk in Indonesia itself especially in West Sulawesi has not received attention and is limited to a few needs such as for ash or livestock feed, and the rest is thrown away. This research aims to determine the effect of rice husk ash addition on the increasing of Mandar coconut oil quality. Completely randomized design was used in this research with 6 rice husk ash concentration variation levels i.e. 0%, 5%, 10%, 15%, 20% and 25%. The result shows that the addition of rice husk ash with 10% to 25% can reduce the water content of the oil until the quality standard of SNI is full filled. The highest reduction of water content was reached with 25% of rice husk ash concentration with 81% of reduction percentage. While, the addition of rice husk ash with 15% concentration can reduce the free fatty acid content of Mandar coconut oil until 32%.


2011 ◽  
Vol 15 (3) ◽  
pp. 15-26 ◽  
Author(s):  
Weerawat Clowutimon ◽  
Prakob Kitchaiya ◽  
Pornsawan Assawasaengrat

KOVALEN ◽  
2019 ◽  
Vol 5 (2) ◽  
pp. 121-131
Author(s):  
Laras mariance Sulo ◽  
Khairuddin ◽  
Ruslan

A research has been conducted on the adsorption ability of rice husk ash to water content and free fatty acid of virgin coconut oil (VCO) in the adsorption column. The objective of this research is to get the ratio of coarse VCO to rice husk ash adsorbent in the column that produces VCO with water content, free fatty acid that meets SNI and yields VCO yield not less than 80%. This study used a completely randomized factorial design (CRF design) with the effect of the amount of rice husk ash adsorbent (5g, 10g, 15g, 20g, 25g) in in columns 2.5 and 3 inches. The result of research on column 2.5 inch of the lowest water content (0.2%) was found on the weight of rice husk ash 25g and free fatty acid content on 25g ash husk ash was 0.1%. And at column 3.0 inch the lowest water content was found on 25g ash husk ash 0.1%, and the lowest free fatty acid content on ash weight of rice husk 25g was 0.2% and the best yield was 90%. Keywords: free fatty acid, rice husk ash adsorbent, moisture content, Virgin Coconut Oil


2011 ◽  
Vol 92 (5) ◽  
pp. 920-924 ◽  
Author(s):  
Adeeb Hayyan ◽  
Md. Zahangir Alam ◽  
Mohamed E.S. Mirghani ◽  
Nassereldeen A. Kabbashi ◽  
Noor Irma Nazashida Mohd Hakimi ◽  
...  

2019 ◽  
Vol 4 (1) ◽  
pp. 9-15
Author(s):  
Irwan Irwan ◽  
Nur Alam ◽  
Asrawaty Asrawaty

This study aims to determine the effect of the concentration of the use of rice husk ash on the quality of copra oil and obtain the concentration of rice husk ash which has the best influence on the quality of copra oil. This research was carried out in the laboratory of Agro-Industry Faculty of Agriculture, University of Tadulako Palu. This study uses a Completely Randomized Design (CRD). The treatment that was tried was rice husk ash consisting of 6 concentration levels namely 0, 5, 10, 15, 20 and 25% (v / v). Each treatment was repeated 3 times so that there were 18 observation units. The parameters observed were oil recovery, water content, free fatty acid content and degree of oil clarity. The data obtained were analyzed by variance, when showing the effect continued with the BNJ test at the level of 5%. The results showed that the treatment of rice husk ash concentration had a very significant effect on recovery, moisture content, free fatty acid content and clarity of copra oil. the concentration of rice husk ash concentration of 20% gives a better influence on the quality of copra oil.


RSC Advances ◽  
2016 ◽  
Vol 6 (103) ◽  
pp. 101098-101104 ◽  
Author(s):  
Antonella De Leonardis ◽  
Francesca Cuomo ◽  
Vincenzo Macciola ◽  
Francesco Lopez

A multi-technique approach used for the characterization of the oxidative stability of red palm.


2018 ◽  
Vol 1 (1) ◽  
pp. 20-26
Author(s):  
Mursalin Mursalin

Efforts to develop the production technology of high quality red palm-oil (RPO) in order to provide source of food ingredient that naturally rich of nutrients, become urgents regarding the need of such products drastically increased recently. Application of deodorization technology by temperature, time, and deodorizer pressure combinations (engineering of deodorization process) are studied and evaluated to obtain good quality of RPO. Crude palm oil (CPO) used in this research were supplied by PT. Salim Ivomas (Bimoli) Jakarta. The equipments used were degumming and neutralization unit, deodorization unit and other equipment units to analize the oil physico-chemical properties. The research consisted of 5 stages as the following: characterising CPO physico-chemical properties, conducting chemically degumming and deacidification, process enginering of deodorization, characterizing of physico-chemical properties and organoleptic of RPO resulted, and analyzing data for product resulted from process engineering applied. Deodorization with the range of temperature and process duration of 135–145 oC (408–418 K) and 1–4 hours have led to carotene retention decreasing (%) following the equation “Carotene Retention (%) = -764 x ln(absolute temperature) + 4693” and process duration with the equation “Carotene Retention (%) = -7.81 x ln(process duration) + 91.02”; and also resulted odor intensity with the equation “Odor Intensity = 0.08 x (squared absolute temperature) – 66.88 x (absolute temperature) + 13823” and duration process with the equation “Odor Intensity = 0.315 x (squared process duration) – 1.52 x (process duration) + 5.268”. Effective deodorization to produce RPO with the content of free fatty acid and peroxide value that met the requirements of Indonesian National Standard (SNI) quality of carotene content above 400 ppm and odor scale below 3.3, were the combination of temperature (T) of 141.34 oC, heat process duration (t) of 2.35 hours and vacuum pressure of (P) of 20 mmHg. The resulted RPO contained free fatty acid and peroxide value of 0.11% dan 0.12 meq/kg oil respectively, total carotene of 444.09 ppm and odor value of 3.21  


2019 ◽  
Vol 964 ◽  
pp. 193-198
Author(s):  
Mabrur Zanata ◽  
Sekar Tri Wulan Amelia ◽  
Muhammad Ridlo Mumtazy ◽  
Firman Kurniawansyah ◽  
Achmad Roesyadi

Bio jet fuel becomes one of the feasible solutions for jet fuel inadequate supply in Indonesia. However, study in this field by far has been limited. In this study, bio jet fuel was synthesized from Crude Palm Oil (CPO) by Hydroprocessed Esters and Fatty Acid (HEFA) facilitated by Ni-Mo/SiO2 catalyst, in which the support was derived from rice husk ash. The study focused on investigating the influence of catalyst-CPO mass ratio and temperature of the catalytic process. Experimental works consisted of silica-based catalyst preparation via impregnation method, followed by sample assessments. Catalytic reactions were conducted at 20-50 bars, with temperature of reaction 300°C and 400°C. Catalyst performance were evaluated from crystallinity, composition, and activity in the reaction. Catalyst characterization shows an amorphous structured with high dispersion of Ni-Mo in rice husk ash have been produced. The HEFA process successfully obtained bio jet fuel (C10-C15 hydrocarbons) with yield and selectivity of 45.17% and 45.46%, respectively. Overall, a systematic approach shows rice husk ash has potential to be developed as a catalyst support for bio jet fuel production from crude palm oil.


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