Biodiesel Cottonseed
Mostrando 1-10 de 10 artigos, teses e dissertações.
-
1. EVALUATION OF ANTIOXIDANT ACTIVITY OF NATURAL EXTRACTS ON THE OXIDATIVE STABILITY OF COTTONSEED BIODIESEL
Abstract The objective of this study was to evaluate the antioxidant activity of the natural extracts catechin, curcumin and quercetin on the oxidative stability of methylic cottonseed oil biodiesel. The oxidative stability was evaluated using the Rancimat method (EN 14112) for biodiesel with 500, 1000, 1500, 2000 and 3000 ppm of additives, and compared with
Braz. J. Chem. Eng.. Publicado em: 30/09/2019
-
2. Protein co-products and by-products of the biodiesel industry for ruminants feeding
The objective of the experiment was to classify 20 protein co-products and by-products of the biodiesel industry with potential to use in ruminant feeding. The meals evaluated were: cottonseed, canudo-de-pito, crambe, sunflower, castor-oil seeds detoxified with calcium, non-detoxified castor-oil seeds and soybean; and the cakes were: cottonseed, peanut, baba
Revista Brasileira de Zootecnia. Publicado em: 2012-05
-
3. Produção de biogás a partir de glicerol oriundo de biodiesel / Biogas production from glycerol generated on biodiesel industry
The Brazilian legislation demands the use of biodiesel mixed with diesel in an increasing rate. This raise on biodiesel production implies also on an increase on generation of glycerol, which is a liquid or semi-solid waste with high concentration of salts (approximately 46.1 g\ CL POT.-\ /L) and organic matter (1260 gCOD/L in average). Despite being widely
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/04/2011
-
4. Synthesis, characterization and catalytic activity of mesoporous materials Al-MCM-41 in transesterification reaction of cottonseed oil / Síntese, caracterização e avaliação catalítica do aluminossilicato mesoestruturado AI-MCM-41 na transesterificação de óleos vegetais
Molecular sieves have been applied to the processing of triacylglycerols, to produce biofuels. In this context, the mesoporous catalyst Al-MCM-41 was proposed in this work as an alternative to acid heterogeneous transesterification of cottonseed oil with ethanol. This material was prepared using various Si/Al molar ratios (25, 50, 75 and 100) with reaction t
Publicado em: 2010
-
5. Avaliação da estabilidade térmica e oxidativa do biodiesel de algodão e do efeito da adição de antioxidantes (α-tocoferol e BHT)
This work aims to study the effects of adding antioxidants, such as, α- tocopherol and BHT on the thermal and oxidative stability of biodiesel from cottonseed (B100). The Biodiesel was obtained through the methylical and ethylical routes. The main physical and chemical properties of cotton seed oil and the B100 were determined and characterized by FTIR
Publicado em: 2009
-
6. Purificação da glicerina bruta obtida a partir da transesterificação do óleo de algodão / Purificação da glicerina bruta obtida a partir da transesterificação do óleo de algodão
The crude glycerine is a raw material that can be used in a wide variety of products. Even with all the impurities inherent in the process of being obtained, the crude glycerin is already in a marketable product. However, the market is much more favorable to the commercialization of purified glycerine. The glycerin is a byproduct gotten from the process of t
Publicado em: 2009
-
7. 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
-
8. OtimizaÃÃo da produÃÃo de Biodiesel
In the Semi-arid of the Northeast of Brazil biodiesel production from castor oil has been studied as a important source of employs in small agriculture. However, other oleaginous adapted to an unfavorable climate, such as cotton, oiticica and jatropha, have great potential for biodiesel production. In this work a study on alternative vegetable oils was done
Publicado em: 2007
-
9. OtimizaÃÃo do processo de produÃÃo de biodiesel a partir de Ãleos de mamona e algodÃo
In the last years, Brazil has imported significant volumes of diesel oil, derived from petroleum, due its great consumption. On the other hand, there is a necessity for a substitute to diesel oil due to environmental issues. For this purpose, a promising alternative is biodiesel, which presents similar physical and chemical properties and it can be obtained
Publicado em: 2007
-
10. Estudo Termoanalítico, Cinético e Reológico de Biodiesel Derivado do Óleo de Algodão / Thermoanalytic, kinetic and rheological study of biodiesel derived from cotton oil
Most of the world energy consumption derives from oil, coal and natural gas. The shortage of the energy sources, especially the energy from fossil fuels, and moreover the impossibility of its renewal has motivated the development of technologies that allow for the usage of renewable energy sources. Biodiesel is biodegradable, renewable and it obeys the cycle
Publicado em: 2006