Effect of Palm Oil Content on Deep Hydrodesulfurization of Gas Oil–Palm Oil Mixtures

2012 ◽  
Vol 26 (6) ◽  
pp. 3856-3863 ◽  
Author(s):  
A. Vonortas ◽  
Ch. Templis ◽  
N. Papayannakos
Author(s):  
Thomas S.Y. Choong ◽  
Saad Abbas ◽  
Abdul Rashid Shariff ◽  
Rohaya Halim ◽  
Mohd Halim S. Ismail ◽  
...  

The oil content of the flesh of mesocarp has direct relationship with color bands red, green and blue. By running intensive experiments, it was found that oil content correlated with the red color band, with a regression value of 0.86. The finding of this study may be useful for determining the ripeness of oil palm for harvesting and for the use in the operation and control of continuous steriliser in palm oil mill.


2018 ◽  
Vol 13 (2) ◽  
pp. 200-208
Author(s):  
Taharuddin Taharuddin ◽  
Dewi Agustina Iryani ◽  
Megananda Eka Wahyu

Mesocarp fiber palm oil industrial waste can be processed into pulp, but this fiber still contains oil with varying levels. The difference oil content in fiber affects the amount of cooking solution required to make mesocarp waste into pulp. This study consists of two stages, namely the pretreatment stage of oil extraction to obtain variations in oil content in the mesocarp fiber waste and the delignification stage using the NaOH-ethanol solution with the ratio of solids:solvent is varied to 1: 8, 1:10 and 1:12. Oil content of the fiber was analyzed, it is consist of 9,5% oil. To vary the oil content, the fibers are soaked in ethanol at room temperature and the levels drop to 7%. And soaking at 40°C can lower the oil content drop to 2%. The obtained pulp had the largest cellulose content 50.77% from delignified product from fiber with 7.6% oil content and solids:solvent ratio: 1:10. While the lowest lignin that was 7.39% obtained at 2.5% oil content. In the delignification process with ratio 1:12, pulp produced is decreased in cellulose content and from FTIR results it is known that it occurs because of the degraded cellulose during the delignification process.


2021 ◽  
pp. 91-98
Author(s):  
Fitrah Murgianto ◽  
Edyson Edyson ◽  
Adhy Ardiyanto ◽  
Shadiar Kesuma Putra ◽  
Lilik Prabowo

Harvesting fresh fruit bunches (FFB) is an important activity in the oil palm plantation industry. This study aimed to analyze the potential content of palm oil at the level of loose fruit that falls on the oil palm circle. Observations were made on five fresh fruit bunches with criteria 1, 3, and 5 respectively loose fruit per bunch that falls on the oil palm circle from oil palm trees that were 22, 16, 12, and 7 years old. All sample fresh fruit bunches were analyzed for potential oil to bunch and oil to wet mesocarp in the analytical laboratory of Bumitama Gunajaya Agro. Content of oil to wet mesocarp in loose fruit 1, 3, and 5 were 48,50 % b, 51,98 % a, and 53,21 % a respectively. While the content of oil to bunch in loose fruit 1, 3, and 5 were 24,19 % a, 25,52 % a, and 25,71 % a respectively. The highest potential for oil content occurs in ripe palm fruit with a level of loose fruit 5 grains per bunch that falls on that oil palm circle. Five grains per bunch on the oil palm circle can be used as an indicator for harvesters to harvest ripe fruit with optimal oil content.   


Author(s):  
Dimas Satria ◽  
Poningsih Poningsih ◽  
Widodo Saputra

The purpose of this paper is to create an expert system to detect oil palm plant diseases in order to help farmers / companies in providing accurate information about the diseases of oil palm plants and how to overcome them and to help reduce the risk of decreasing palm oil production. This system is designed to mimic the expertise of an expert who is able to detect diseases that attack oil palm plants. The method used is forward chaining that is starting from a set of data and proving a fact by describing the level of confidence and uncertainty found in a hypothesis. The results of this study are to diagnose diseases of oil palm plants and their computerization using web programming languages.


2019 ◽  
Vol 10 (1) ◽  
pp. 48-56
Author(s):  
Caroline C.A. Magalhães ◽  
Julia A. Romão ◽  
Geiza S. Araújo ◽  
Diego T. Santos ◽  
Giovani B.M. De Carvalho

Background: The use of nutritional supplementation of the brewer&#039;s wort can be an interesting option to increase cell viability and yeast fermentability. </P><P> Objective: This study aims to evaluate the effects of the variables wort concentration and nutritional supplementation with palm oil in the production of beer in high-density wort. </P><P> Methods: The process effects were evaluated through the central composite rotational design of type 22 associated with the Response Surface Methodology (RSM). The fermentations were carried out using the commercial Saccharomyces cerevisiae yeast, lager type, at 15&#176;C. </P><P> Results: The mathematical models and RSM obtained were an efficienct strategy to determine the optimum fermentation point for the ethanol volumetric productivity (wort concentration of 20.90 &#176;P and palm oil content of 0.19 % v/v) and for the apparent degree of fermentation (wort concentration of 16.90 &#176;P and palm oil content of 0.22% v/v). There was a good correlation between the experimental values observed and predicted by the model, indicating that the fit of the model was satisfactory and it can be inferred that the increase of the wort concentration and the nutritional supplementation with the palm oil reached an ethanol volumetric productivity of 0.55 g/L.h and an apparent degree of fermentation of 50.20 %. </P><P> Conclusion: Therefore, it can be concluded that our study demonstrates that nutritional supplementation with palm oil is an alternative and promising option for the breweries to increase productivity. There are recent patents also suggesting the advantages of using alternative nutritional supplements in beverage production.


2018 ◽  
Vol 24 (2) ◽  
pp. 67-76
Author(s):  
Sujadi Sujadi ◽  
Hasrul Abdi Hasibuan ◽  
Meta Rivani ◽  
Abdul Razak Purba

Fresh fruit bunches (FFB) consist of fruit be composed grade in few spikelet. Fruit at a spikelet can be distinguished into performed fruit namely internal fruit, middle fruit and outer fruit as soon as each section contain parthenocarpy fruits. This research was conducted for determine composition and content fatty acid of oil at internal fruit, middle, outer and parthenocarpy fruit from oil palm fruit. Samples of fruit came from 3 – 5 spikelet the central of FFB. Result showed that oil content of outer fruit (46.9 + 9.9)% trend higher be compared middle fruit (42.8 + 10.3)% and internal fruit (39.1 + 9.5)%. Parthenocarpy fruits have a low oil content (14.2 + 16.2)% except yellowish fruit trend high relatively oil content. The main components of fatty acid at outer fruit, middle and internal are palmitic acid, oleic, linoleic and stearic with mean value respectively (44.8 – 45.8)%, (37.6 – 38.0)%, (9.9 – 10.9)% and (4.6 – 4.8)%. Oil content at parthenocarpy fruit have amount main component of fatty acid with performed fruit but composition of palmitic acid (40.0 + 5.9)% and oleic (34.6 + 8.4)% lower while linoleic acid (16.9 + 8.5)% and linolenic (1.6 + 1.8)% higher be compared to performed fruit. Simalungun variety has the highest oil content in the part of fruit, with that PPKS 540 and La Mé respectively. PPKS 540 variety has the highest oleic acid content while PPKS 718 has the highest linoleic content.


Fermentation ◽  
2021 ◽  
Vol 7 (2) ◽  
pp. 81
Author(s):  
Hironaga Akita ◽  
Mohd Zulkhairi Mohd Yusoff ◽  
Shinji Fujimoto

Malaysia is the second largest palm oil producer and exporter globally. When crude palm oil is produced in both plantations and oil processing mills, a large amount of oil palm empty fruit bunch (OPEFB) is simultaneously produced as a waste product. Here, we describe the preparation of hydrolysate from OPEFB. After OPEFB was hydrothermally treated at 180–200 °C, the resultant liquid phase was subjected to high-performance liquid chromatography analysis, while the solid phase was used for acidic and enzymatic hydrolysis. Hemicellulose yield from the acid-treated solid phase decreased from 153 mg/g-OPEFB to 27.5 mg/g-OPEFB by increasing the hydrothermal treatment temperature from 180 to 200 °C. Glucose yield from the enzyme-treated solid phase obtained after hydrothermal treatment at 200 °C was the highest (234 ± 1.90 mg/g-OPEFB, 61.7% production efficiency). In contrast, xylose, mannose, galactose, and arabinose yields in the hydrolysate prepared from the solid phase hydrothermally treated at 200 °C were the lowest. Thus, we concluded that the optimum temperature for hydrothermal pretreatment was 200 °C, which was caused by the low hemicellulose yield. Based on these results, we have established an effective method for preparing OPEFB hydrolysates with high glucose content.


Land ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 500
Author(s):  
Stephany Iriana Pasaribu ◽  
Frank Vanclay

Although companies have many direct and indirect impacts on the lives of children, discussion of the responsibility of business to respect the rights of children has primarily focused on child labor. Using UNICEF’s Children’s Rights and Business Principles as a framework for our analysis, we considered the activities of oil palm plantation companies operating in Indonesia. Our data come from key informant interviews and reflection on two programs established to promote respect for children’s rights in the Indonesian palm oil industry: one by Pusat Kajian Perlindungan Anak (PKPA) (Center for Child Study and Protection); and one by the Roundtable on Sustainable Palm Oil (RSPO) in conjunction with UNICEF. We considered: how plantation company activities impacted children’s lives; how companies demonstrated respect for children’s rights; and how observance of children’s rights can be improved. We discuss four problematic issues: getting company commitments to children’s rights into policy and practice; having a strong business case for respecting human rights and children’s rights; contradictory objectives within companies; and complexities around children in the workplace. We argue that a children’s rights based approach should be applied to the activities of all organizations. This children’s rights lens is needed to overcome the invisibility of children in society and industry, and to address the root causes of human rights harms. We note that respecting children’s rights will likely contribute to getting a social license to operate and grow.


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