Waste Vegetable Oil
Mostrando 13-21 de 21 artigos, teses e dissertações.
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13. Experimental determination of the data kinetics of transesterification reaction of vegetable oils / Determinação experimental dos dados cineticos da reação de transesterificação de oleos vegetais
The general objective of this study was to contribute with the biodiesel production. More specifically, the purpose is to obtain experimental parameters kinetics of transesterification reaction for alcoholysis reaction of various vegetable oils produced in Brazil, such as palm oil, waste frying, coconut oil, soybean oil and castor oil, being employed various
Publicado em: 2009
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14. A coleta seletiva para reciclagem de óleo e gordura residual: um estudo em unidades comerciais de alimentação de Salvador. / The selective collection for recycling of waste oil and fat: a study on commercial power units in Salvador.
Este trabalho analisa o processo da coleta seletiva de óleos e gorduras residuais - OGR realizada em unidades comerciais de alimentação. Para tal foi feita uma revisão da literatura sobre óleo vegetal contemplando desde suas características até a geração de OGR, mostrando a importância da coleta seletiva deste resíduo, o diferencial da educação
Publicado em: 2009
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15. Productions of ethyl esters (biodesel) from the transesterification core residual oil / Produção de esteres etilicos (biodiesel) a partir da transesterização basica de oleo residual
Biodiesel (alkyl esters) is a clean burning fuel derived from a renewable lipid feedstock such as vegetable oil or animal fat. It is biodegradable, non-inflammable, nontoxic and produce much lesser COx, sulfur dioxide and unburned hydrocarbons than petroleum-based diesel. Nowadays, due to the price of virgin oil such as soybean and canola oils, the use of lo
Publicado em: 2008
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16. Desacidificação do OFA atraves do processo de extração liquido-liquido descontinuo utilizando alcoois / Rice poil Brain desacidification in a descontinuous liquid-liquid extraction process using alcohols
The vegetable oil is present in the gastronomy of different cultures,making the food even more attractive to our senses: smell,sight and taste.Besides being an important source of energy it also contains vitamins, nutraceutical compounds and antioxidant liposoluble. Rice brain oil is one of the best vegetable oil, it possesses powerful antioxidant compound t
Publicado em: 2008
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17. Reologia de Biodiesel de origens diversas e das misturas Diesel/Biodiesel
Cost and depletion of petroleum derived fuels are increasing, thus alternative fuels are quite required. Biodiesel (B100), which is comprised of fatty acid methyl (or ethyl) esters (FAMEs/FAEEs) derived from vegetable oils, animal fats or waste oils mainly through transesterification, is an alternative source of energy. It is renewable, available locally, bi
Publicado em: 2008
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18. Transesterificação de óleos vegetais: caracterização por cromatografia em camada delgada e densidade
We studied the transesterification of two vegetable oils: soybean and waste frying oil. The main problem of transesterification is related to the measurement of the ethyl ester content. In this work we used a quick analytical method for assessing the ethyl ester fraction of the purified fuel-grade transesterification products by applying a simple correlation
Química Nova. Publicado em: 2007
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19. Soybean oil processing using ultrafiltration in micelle in the degumming step / Processamento de oleo de soja utilizando ultrafiltração em miscela na etapa de degomagem e na obtenção de lecitina
Crude soybean oil is traditionally degummed by water addition or phosphoric acid. The membrane technology applied to vegetable oils processing has become important because it allows to use temperatures, reduces waste water treatment, retains undesirable products, besides preserving important minor compounds in the oil. The objectives of this work were to opt
Publicado em: 2004
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20. Refino a seco de oleo de soja
The current chemical refining process (or conventional) of vegetable oils generates a great amount of liquid waste water, due to the usage of water in the process, mainly in the desacidification step, where the ftee fatty acids are neutralized through the addition of an aqueous solution ofNaOH, transforming these compounds in soaps (soapstock), oi! insoluble
Publicado em: 2000
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21. Degradation of Degradable Starch-Polyethylene Plastics in a Compost Environment †
The degradation performance of 11 types of commercially produced degradable starch-polyethylene plastic compost bags was evaluated in municipal yard waste compost sites at Iowa State University (Ames) and in Carroll, Dubuque, and Grinnell, Iowa. Masterbatches for plastic production were provided by Archer Daniels Midland Co. (Decatur, Ill.), St. Lawrence Sta