Production of Biodiesel from Locally Available Spent Vegetable Oils

Abstract

-The depletion of fossil fuels prompted considerable research targeting the development of alternative fuel sources. Biodiesel production has acquired increasing importance owing to its renewable nature and milder environmental impacts. To this end, alternative sources of feedstock have been sought and studies aiming at the optimization of the production procedure have been carried out. Millions of liters of waste frying oil are produced from local restaurants and houses every year, most are discarded into sewage systems damaging networks and complicating the treatment process. This study is intended to consider aspects related to the feasibility of the production of biodiesel from waste frying oils in order to alleviate the waste frying oil pollution problems as well as to reduce the cost of biodiesel production. Locally available spent vegetable oils have been collected from different sources and accordingly have somewhat different chemical compositions. The conducted experiments involved the production of biodiesel from the different feed stocks using the base catalyzed trans-esterification process. The quality of the produced biodiesel is compared to petro-diesel in terms of established standard specifications.

Data on physico-chemical, performance, combustion and emission characteristics of Persea Americana Biodiesel and its blends on direct-injection, compression-ignition engines

“…The Avocado biodiesel was produced in the laboratory by a process known as transesterification [1] , [2] , [3] , [4] , [5] , [6] , [7] , [8] , [9] . The process involved a catalyst concentration of 1.00% sodium hydroxide (NaOH), operating temperature of 65 °C, methanol to oil molar ratio of 6:1 and a reaction time of 2 h for optimum biodiesel yield production [10] , [11] , [12] . The cold flow and critical properties of the produced biodiesel were evaluated by using the American Society for Testing Materials (ASTM) and European committee for standardization (EN) [13] , [14] .…”

Oil Palm Empty Fruit Bunch (EFB) Pellet and Rice Husk Pellet Biomass Fuel in Malaysia: A Comparative Investigation of Moisture, Dry Ash, and Oil Content

“…One potential explanation for this could be rooted in the oil content of the pellets, a critical determinant of ignition time (Mansaray & Ghaly, 1999). Oil-rich biomass fuels often require shorter ignition times due to the higher energy content within oil (Al Naggar et al, 2017) 3.5 Relationship between biomass fuel combustion and moisture content, oil content, manual flash point, and dry ash content.…”

Técnicas de reciclagem de óleo residual de fritura: ressignificando a produção de sabão e vela / Techniques for recycling waste frying oil: giving new meaning to soap and candle production

“…A problemática causada pelo descarte incorreto do óleo residual de cozinha se torna evidente devido aos diversos problemas ambientais: (i) entupimento das redes de esgoto; (ii) contaminação direta de rios e lagos; (iii) desequilíbrio em ambientes aquáticos causando morte da fauna e da flora; (iv) proliferação de espécies não desejadas; e (v) encarecimento dos processos nas estações de tratamento de esgoto (NAGGAR et al, 2017;MATTSSON et al, 2015). Além disso, o processo de decomposição do óleo residual de cozinha libera gás metano, substância que agrava o aquecimento global (FREITAS et al, 2010).…”