scispace - formally typeset
Search or ask a question
Author

Wook Kim

Bio: Wook Kim is an academic researcher. The author has contributed to research in topics: Soybean oil & Biodiesel. The author has an hindex of 2, co-authored 2 publications receiving 10 citations.

Papers
More filters
Journal ArticleDOI
29 Oct 2012
TL;DR: In this article, an experiment was performed by using ratio of 50:50, 75:25 (w/w) mixture of based rapeseed oil, camellia oil, and olive oil.
Abstract: - As there have been lately many worldwide resource challenges such as potential exhaustion of fossil fuels, sudden rise of oil price and ever-rising grain pricing due to global food crisis, there have been more interests focused on recycling vegetable oils and fats into clean natural fuel and producing new resources based on waste cooking oil as a part of reusing waste resources An Experiment was performed by using ratio of 50:50, 75:25 (w/w) mixture of based rapeseed oil, camellia oil, and olive oil 50:50, 25:75 (w/w) mixture of based palm oil The result was that the oleic acid (C 18:1 ) got the lowest percentage of 428%, when we combined the mixture of rapeseed oil and soybean oil While the highest percentage of 721% was when the mixture of camellia oil and rapeseed oil we re combined at 50:50 ratio In 75:25 (w/w) case, mixture of rapeseed oil and soybean oil got the lowest The highest ratio was the mixture of camellia oil and olive oil Based on the component of palm oil, the total saturated fatty acid was decreased It is expected that stabilizing oxidation through controlling of fatty acid after mixture and that liquidity at a low temperature The acid value indicated that stabilizing oxidation got a range of highest to lowest Camellia oil ranked as the highest, followed by olive oil, and the oil seeds as the lowest in rank Controlling iodine value through mixture and improvement of stabilizing oxidation will provide a good quality The quality of color has no significant change about mixture in ratio and maintenance The reduction of the cost of refining process is expected by controling of mixture ratio at biodiesel production in the future

6 citations

Journal ArticleDOI
TL;DR: In this article, the authors analyzed the fuel characteristics of biodiesel, the yield of by-products and biodiesel using several vegetable oils - rapeseed oil, camellia oil, peanut oil, sesame oil, perilla oil, palm oil, olive oil, soybean oil, sunflower oil and animal fats such as lard, tallow, and chicken fat.
Abstract: Biodiesel was produced by "transesterification" of vegetable oils and animal fats as an alternative to petroleum diesel. The research analysed the fuel characteristics of biodiesel, the yield of by-products and biodiesel, using several vegetable oils - rapeseed oil, camellia oil, peanut oil, sesame oil, perilla oil, palm oil, olive oil, soybean oil, sunflower oil and animal fats such as lard, tallow, and chicken fat. The results showed the yields of biodiesel made from the vegetable oils and animal fats were and respectively. Production rates and oxidation characteristics were different depending on the fats applied.

6 citations


Cited by
More filters
Journal ArticleDOI
TL;DR: In this paper, the feasibility of biodiesel production using rendered fat from avian influenza (AI) infected poultry in a burial site was evaluated using a laboratory-scale transesterification.
Abstract: To test the feasibility of biodiesel production using rendered fat from avian influenza (AI) infected poultry in a burial site, we conducted a laboratory-scale transesterification. Each content of fatty acid methyl esters (FAME) was identified to estimate the characteristics of produced biodiesel. Analytical results of the whole FAME profile show that the rendered fat from AI carcass can be a useful source of biodiesel production. The results show 47% of total fat mass can be recovered as biodiesel. Although natural biodegradation in the burial site and soil impurities lowered the yield, the compositional properties of FAMEs confirm that the produced biodiesel presents adequate fuel characteristics, satisfying common biodiesel specifications. These findings provide evidence that our approach can be a viable option to recycle buried carcass sustainably while terminating burial sites.

5 citations

Journal ArticleDOI
TL;DR: In this article, the recovery rate of Fatty Acids Methyl Ester (FAME) using various waste cooking greases from local restaurants was evaluated using a statistical approach, Response Surface Methodology (RSM), and various transesterification based on the ratio of KOH and methanol was evaluated experimentally.
Abstract: This study evaluated the recovery rate of Fatty Acids Methyl Ester (FAME) using various waste cooking greases from local restaurants. The productivity of biodiesel was analyzed based on the FAME contents and profiles according to the source of greases. Adapting a statistical approach, Response Surface Methodology (RSM), various transesterification based on the ratio of catalyst (KOH) and methanol was evaluated experimentally. Results presented a significant difference in total FAME recovery depending on reaction condition. RSM revealed the optimal blending condition of methanol (59−100 ml) and KOH (2.2−3.2 g) for waste cooking greases of bovine, swine, and poultry, which presented similar FAME characteristics when compared with other biodiesels. Optimal conditions for bovine, swine and poultry made the potential of biodiesel recovery from greases as high as 57.0%, 55.3%, and 53.7%, respectively. Overall, suggested optimized transesterification of waste cooking grease prevents unnecessary resource waste and enables the concept of waste-to-energy. It is also eco-friendly due to reduced pollutant emission and fossil fuel substitution.

4 citations

Journal ArticleDOI
31 Oct 2013
TL;DR: In order to evaluate their potential as sources of biodies el, oil content and fatty acid composition of seeds and FAME properties from seven woody oil plants in Korea were analyzed as mentioned in this paper.
Abstract: - In order to evaluate their potential as sources of biodies el, oil content and fatty acid composition of seeds and fatty acid methyl ester (FAME) properties from seven woody oil plants in Korea were analysed. The oil content of seed of all woody plant species ranged from 15.1 ( Ligustrum lucidum ) to 70.3% ( Camellia japonica ) by dry weight. Fatty acid composition consisted mainly of oleic acid, linoleic acid, lino lenic acid, palmitic acid and stearic acid, with oleic acid bein g the most abundant. The content of unsaturated fatty acids of all species was higher than saturated fatty acids. Oxidation stability of seed oils of all woody plants ranged from 2.25 to 8.62 hours/110 ℃. Fatty acid methyl ester of Styrax japonica has been found to have the highest iodine value, indicating that unsaturated fatty acid content is higher than other seed oils. Cold filter plug point(CFPP) was varied over a wide range from 0 ℃ to –13℃. The cold fluidity of FAME of Chionanthus retusa were excellent.

2 citations

Journal ArticleDOI
TL;DR: In this article, the authors investigated physicochemical characteristics and aroma components of five aromatic rice cultivars according to transplanting time and concluded that Aromi and Hyangmibyeo 2 ho were excellent physicochemical properties and 2AP components contents amongaromatic ricecultivars tested.
Abstract: BACKGROUND:The Aromatic rice which is characterized by the flavor of Nurungji whencooked rice, andconsumption is increasing recently. The purpose of this study was to investigate the physicochemical characteristics and aroma components of five aromatic rice cultivars according to transplanting time. METHODS AND RESULTS: Quantitative analysis of protein, fat, fatty acid and essential amino acid for five aroma rice cultivars(Hyangmibyeo 2 ho, Aromi, Mihyang, Aranghyangchal, Heughyang)and transplanting time was analyzed by crude protein analyzer, gas chromatography (GC), liquid chromatography (LC) and viscosity analysis was done by using rapid viscosity analyzer (RVA). The content of 2-acetyl-1-pyrroline (2AP) was determined by gas chromatography mass spectrometer. (GC-MS) As a result, the average protein and lipid contents were 6.5%and 2.4%, respectively. The content of essential amino acid showed the highest content at 104.4mg/g. There was no significant change in normal nutrients during the transplanting time. By RVA, cv.Hyangmibyeo 2 ho showed the highest peak and total setback viscosities and lowest breakdown viscosity in early transplantation. The content of 2AP in flavor varieties and transplanting time was quantitatively analyzed by GC-MS. Among the cultivars, Aromi showed the highest 2AP contents at 66.7 g/100gin μ normal transplanting time. CONCLUSION: cv.Aromi and Hyangmibyeo 2 ho were excellent physicochemical properties and 2AP components contentsamongaromatic ricecultivars tested.Theiroptimaltime to transplant was at the beginning of June in the area of Miryang.

2 citations