Production of biodiesel from hydrosterification reaction
Journal Title: Uningá Review - Year 2020, Vol 35, Issue 1
Abstract
Fatty acid esters (Biodiesel) are commonly produced by homogeneous basic catalytic transesterification reaction, whose sensitivity to the presence of water and free fatty acids (FFAs) in the raw material is one of the main drawbacks. The search for production processes that allow the use of vegetable oils with less added value is of interest to the biofuel industry. A promising alternative is hydroesterification, whose first stage is the hydrolysis of triacylglycerols, producing FFAs and glycerol products. Therefore, instead of decreasing acidity of the raw material through refining, the hydrolysis stage purposely increases its acidity. Then, glycerol is removed and the FFAs are subjected to an esterification reaction to produce fatty acid esters and water as a by-product. Therefore, this work presents a literature review, which has as main focus the production of biodiesel from hydroesterification. Alternative raw materials with potential in the current market are also presented. It was possible to verify that hydroesterification offers advantages when compared to conventional reactions. When carried out under conditions of high temperature and pressure, it can reduce the difficulties associated with the use of catalysts, becoming a promising alternative to be used as a method of biodiesel production.
Authors and Affiliations
Bruna Tais Ferreira de Mello, Lúcio Cardoso Filho, Camila da Silva.
Keywords
Related Articles
- EP ID EP712680
- DOI doi.org/10.46311/2178-2571.35.eRUR3522
- Views 51
- Downloads 0
Presence of inorganic contaminants in farm-raised fish and wild-caught fish
Commercial fishing and fish farms represent important sectors in the food industry. The global demand for these products had a significant increase in the last decades, due to the growth of the population, increase in in...
Nitrate, nitrite, calcium, potassium and sodium in organic, hydroponic and conventional vegetables
Lettuce and arugula are vegetables that provide several health benefits and represent the most produced and consumed leaf vegetables in Brazil. The present study aimed to assess the levels of nitrate, nitrite,...
Humeroradial stabilization with screws and braided polyester in dog with traumatic elbow luxation
The objective was to describe the case of a dog with traumatic elbow luxation that obtained good results after orthopedic correction with screws and braided polyester in a figure of "8". The owner reported that the anima...
Photography as a research source for history and memory of a municipality in the state of Tocantins
Research on photography with a focus on a city in the state of Tocantins is a way to try to tell of the history of this city, since there is little information or files that reveal part of this history. This research has...
Citrus limon, Melaleuca alternifolia and Psidium guajava as natural inhibitors of Sporothrix schenckii
The sporotrichosis is a chronic, subcutaneous mycosis that can affect animals, such as dogs and cats and with less frequency in humans. The etiologic agent belongs to the Sporothrix schenckii complex. The treatment for t...