scholarly journals Influences of Marine Environment to the Characteristics of Palm Oil Biodiesel during Storage

2020 ◽  
Vol 79 (1) ◽  
pp. 81-90
Author(s):  
Dedy Wahyudi ◽  
Mas Fawzi ◽  
Beny Cahyono ◽  
Dita Artanti
Keyword(s):  
Marine Environment ◽  
Palm Oil ◽  
Power Reduction ◽  
Acid Number ◽  
Prolonged Storage ◽  
Storage Process ◽  
Alternative Energies ◽  
Fungus Growth ◽  
Palm Oil Biodiesel ◽  
Engine Power

Biodiesel from palm oil is one of the alternative energies developed in Indonesia and has been implemented since 2018 for marine transportation, especially for ships. However, there are pertinent cases that experienced many obstacles related to the occurrence of gels, engine power reduction, blocking filters, and injection in the engine. The occurrence of those cases is due to the prolonged storage of biodiesel onboard of ships. During a significant storage process, periodic biodiesel monitoring is required which is difficult to do onboard. In this paper, a study on the physical/chemical characteristics of biodiesel and microbiological growth had been carried out in a controlled effect of the marine environment. Samples of biodiesel blends B20 were placed in locations near the sea and land base areas. It was found that there were significant changes in some chemical parameters of the biodiesel, such as flash point, viscosity, and acid number after 30 days. Microbiological growth, specifically bacteria, appeared on the 45th day of the outdoor-land sample. On the other hand, fungus growth on the out-door-sea was also detected on the same day. It suggested that the growth of microorganisms, growth of fungus and change in characteristics of the marine environment causes the degradation of biodiesel.

scholarly journals The Effect of Sorbitan Monooleate and Alcohol Addition as Flow Properties Improver in Palm Oil Biodiesel

2020 ◽  
Vol 8 (4) ◽  
pp. 41-46
Author(s):  
Anya Prilla Azaria ◽  
◽  
Sylvia Ayu Bethari ◽  
Mohammad Nasikin ◽  
◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Palm Oil ◽  
Acid Number ◽  
Molar Ratio ◽  
Cold Filter Plugging Point ◽  
Flow Properties ◽  
Sorbitan Monooleate ◽  
Fuel Filter ◽  
Mg Content ◽  
Palm Oil Biodiesel

The use of the biodiesel B-20 especially in low temperature causes a blockage in the diesel vehicle fuel filter, which in turn causes the vehicle to strike. The blockage is caused by the deposition of monoglycerides (MG) agglomeration. These MG deposits reduce the flow properties of B-20. In this study, the Sorbitan Monooleate (SMO) surfactant was used in palm oil biodiesel (B-100) with 3 variations of alcohol, which are methanol, ethanol, and octanol. For each biodiesel with 0.4% MG content, the concentration of SMO surfactant was varied by 0.1-1% by volume of biodiesel. The molar ratio of surfactant/co-surfactants used is 1:1. Samples of biodiesel were stored at room temperature (±27°C). The effect of SMO and three variations of alcohol was analyzed using two flow properties parameters: Cloud Point (CP), Cold Filter Plugging Point (CFPP), and also supporting data, such as flashpoint and acid number. CP and CFPP were tested every week for a month’s observation. The addition of SMO and octanol to palm oil biodiesel gave the best results by reducing CP by 4.4°C and CFPP by 3°C. The interaction between MG, oleic tails, and hydrogen bonding between them has been analyzed by Fourier-Transform Infrared Spectroscopy (FTIR) method. There are indications of intermolecular hydrogen bonding to MG after the addition of SMO and octanol at wavenumbers 3231.11 and 3289 cm-1.

Komposisi Kimia dan Mikrobiologi Bumbu Instan “Soto Madura”

2019 ◽  
Vol 1 (2) ◽  
pp. 25-30
Author(s):  
Ratih Yuniastri
Keyword(s):  
Proximate Analysis ◽  
Acid Number ◽  
Nutritional Content ◽  
Storage Process ◽  
And Storage

Instant seasoning is made by mixing several ingredients and mashing it according to the desired composition. What is offered spices to enhance the flavor and aroma of these herbs. “Soto Madura” needs to be considered to determine the proper packaging and storage process. The spices are then made an analysis of the nutritional content of the spices. The spices were made repeatedly as many 3 times so the repeat data obtained. The analysis carried out includes proximate analysis, analysis of fat damage, and microbilogical content of herbs. The results of the analysis showed the instant seasoning “Soto Madura” contained water of 7,42±0,066%; ash by 1,18±0,056%; protein of 59,04±0,085%; fat 7,77±0,152%; carbohydrates 25,46±0,531%; acid number 0,507±0,035 mg/g; peroxide rate 4,063±0,066 Meg/1000g; free fat (FFA) 0,22±0,036%. For microbiological content, the content of microorganisms in the spices was 1,11x108 colonies; mold 7,9x106 colonies; and coliforn 8,6x106 colonies.

scholarly journals An Interpretation of Performance and Emission Outcomes of the Compression Ignition Engine using Palm Oil Biodiesel-Diesel Blends

2021 ◽  
Vol 1126 (1) ◽  
pp. 012074
Author(s):  
Nitin Dattatreya Kamitkar ◽  
Satishkumar ◽  
A N Basavaraju ◽  
Shashikant Kushnoore ◽  
A B Deepa ◽  
...  
Keyword(s):  
Palm Oil ◽  
Compression Ignition ◽  
Compression Ignition Engine ◽  
Performance And Emission ◽  
Palm Oil Biodiesel

scholarly journals Effect of Thermal Barrier Coating on the Performance and Emissions of Diesel Engine Operated with Conventional Diesel and Palm Oil Biodiesel

Coatings ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 692
Author(s):  
Navin Ramasamy ◽  
Mohammad Abul Kalam ◽  
Mahendra Varman ◽  
Yew Heng Teoh
Keyword(s):  
Thermal Barrier Coating ◽  
Palm Oil ◽  
Silicon Oxide ◽  
Engine Performance ◽  
Spray Coating ◽  
Thermal Barrier ◽  
Performance And Emission ◽  
Barrier Coating ◽  
Carbon Dioxide Co2 ◽  
Palm Oil Biodiesel

In this study, the performance and emission of a thermal barrier coating (TBC) engine which applied palm oil biodiesel and diesel as a fuel were evaluated. TBC was prepared by using a series of mixture consisting different blend ratio of yttria stabilized zirconia (Y2O3·ZrO2) and aluminum oxide-silicon oxide (Al2O3·SiO2) via plasma spray coating technique. The experimental results showed that mixture of TBC with 60% Y2O3·ZrO2 + 40% Al2O3·SiO2 had an excellent nitrogen oxide (NO), carbon monoxide (CO), carbon dioxide (CO2), and unburned hydrocarbon (HC) reductions compared to other blend-coated pistons. The finding also indicated that coating mixture 50% Y2O3·ZrO2 + 50% Al2O3·SiO2 had the highest brake thermal efficiency (BTE) and lowest of brake specific fuel consumption (BSFC) compared to all mixture coating. Reductions of HC and CO emissions were also recorded for 60% Y2O3·ZrO2 + 40% Al2O3·SiO2 and 50% Y2O3·ZrO2 + 50% Al2O3·SiO2 coatings. These encouraging findings had further proven the significance of TBC in enhancing the engine performance and emission reductions operated with different types of fuel.

scholarly journals Deep Eutectic Solvents Based Choline Chloride for Enzymatic Biodiesel Production from Degumming Palm Oil

2020 ◽  
Vol 32 (4) ◽  
pp. 733-738 ◽  
Author(s):  
R. Manurung ◽  
Taslim ◽  
A.G.A. Siregar
Keyword(s):  
Palm Oil ◽  
Raw Materials ◽  
Choline Chloride ◽  
Deep Eutectic Solvent ◽  
Deep Eutectic Solvents ◽  
Biodiesel Production ◽  
Chloride Salt ◽  
Enzymatic Reactions ◽  
Potential Applications ◽  
Palm Oil Biodiesel

Deep eutectic solvents (DESs) have numerous potential applications as cosolvents. In this study, use of DES as organic solvents for enzymatic biodiesel production from degumming palm oil (DPO) was investigated. Deep eutectic solvent was synthesized using choline chloride salt (ChCl) compounds with glycerol and 1,2-propanediol. Deep eutectic solvent was characterized by viscosity, density, pH and freezing values, which were tested for effectiveness by enzymatic reactions for the production of palm biodiesel with raw materials DPO. Deep eutectic solvent of ChCl and glycerol produced the highest biodiesel yield (98.98%); weight of DES was only 0.5 % of that of the oil. In addition, the use of DES maintained the activity and stability of novozym enzymes, which was assessed as the yield until the 6th usage, which was 95.07 % biodiesel yield compared with the yield without using DES. Hence, using DES, glycerol in enzymatic biodiesel production had high potentiality as an organic solvent for palm oil biodiesel production

scholarly journals Effect of Multi-walled Carbon Nanotubes on Pre-vaporized Palm Oil Biodiesel/air Premixed Flames

2021 ◽  
pp. 100020
Author(s):  
Dastan Nurmukan ◽  
Manh-Vu Tran ◽  
Yew Mun Hung ◽  
Gianfranco Scribano ◽  
Cheng Tung Chong
Keyword(s):  
Carbon Nanotubes ◽  
Palm Oil ◽  
Premixed Flames ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Palm Oil Biodiesel

Lubricating Properties of Diesel Fuel and Hydrogenated Vegetable Oil with Palm Oil Biodiesel Blends Using HFRR Method

2021 ◽  
Author(s):  
Nur Allif Fathurrahman ◽  
Ahmad Syihan Auzani ◽  
Rizal Zaelani ◽  
Riesta Anggarani ◽  
Lies Aisyah ◽  
...  
Keyword(s):  
Vegetable Oil ◽  
Palm Oil ◽  
Diesel Fuel ◽  
Biodiesel Blends ◽  
Hydrogenated Vegetable Oil ◽  
Palm Oil Biodiesel ◽  
Lubricating Properties

Improved water footprint of oil palm products using eddy covariance measurements of evapotranspiration

2021 ◽  
Author(s):  
Joris Herz ◽  
Ana Meijide ◽  
Christian Stiegler ◽  
Bunyod Holmatov ◽  
Alexander Knohl ◽  
...  
Keyword(s):  
Water Resources ◽  
Eddy Covariance ◽  
Palm Oil ◽  
Oil Palm ◽  
Carbon Dioxide Emissions ◽  
Water Footprint ◽  
Growth Stages ◽  
Palm Fruit ◽  
Ongoing Research ◽  
Palm Oil Biodiesel

<p>The global population growth and changes in human lifestyle and consumption patterns put immense pressure on the limited freshwater resources in the world. Aiming at sustainable use and equitable allocation of the water resources, it becomes crucial to know the water appropriation for the production of different commodities and consumer goods. These days, oil palm (<em>Elaeis guineensis</em>) is one of the highest-demanded crops around the globe since the oil of its fruits and kernel is widely used as biofuel and major ingredients in food and cosmetic industries. Given this massive demand, the areas under oil palm cultivation in the tropics have continuously been expanding in the last decades, particularly in Indonesia. With the oil palm boom, not only biodiversity loss, and carbon dioxide emissions from deforestation have been increasing, but also the consumptions of blue and green water resources are of concern. </p><p>In this ongoing research, the concept of water footprint (WF) is employed to quantify the green and blue water use of oil palm production in the Bajubang district, Batanghari regency, Jambi province, Sumatra, Indonesia. This is one of the first studies that uses field-measured data of evapotranspiration (ET) from oil palm plantations in different growth stages over seven years for the purpose of WF assessment, compared to the available literature where ET was estimated using modelling approaches. The multi-year measurements were conducted using the eddy covariance technique, which continuously measures water vapor (H<sub>2</sub>O) fluxes at the ecosystem level over the plantation. Based on these measurements, specifically, the WF assessment is performed on a product basis during the plantation life cycle, per area and time unit, for the oil palm fruit yield and oil palm derived products (palm oil, palm-oil biodiesel). Besides the crop water consumption at the plantation (i.e. ET) as the core element, other water consumptions in the products’ processing chain are included in the WF assessment. Preliminary results indicate a WF of 2440 m<sup>3</sup> t<sup>-1</sup> for palm oil and 65 m<sup>3</sup> GJ<sup>-1</sup> for palm-oil biodiesel. This is about 50% lower than the global average estimates. Local WF account of oil palm products has a critical contribution to product transparency while being useful for comparative purposes. Contrasting the WFs of products serving the same function (e.g., palm oil biodiesel, soybean biodiesel) is of essential importance, aiming at conscious product choices in a world of freshwater scarcity.</p><p>Keywords: water footprint, oil palm, palm oil, Indonesia, eddy covariance, evapotranspiration</p>

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