Craqueamento termo-catalítico da mistura óleo de fritura usado-lodo de estamparia têxtil para a produção de óleo com baixo índice de acidez

Abstract

THERMO-CATALYTIC CRACKING OF THE MIXTURE OF USED FRYING OIL-TEXTILE STAMPING SLUDGE FOR THE PRODUCTION OF OIL WITH LOW ACIDITY INDEX. In this work, cracking experiments were performed to carry out the thermal conversion of the mixture of used frying oil and textile stamping sludge in continuous reactor. The textile stamping sludge was used to catalyze the reaction of thermal cracking. The physical and chemical properties of the oil produced were analyzed. Among the results of this analysis the level of acidity in the range of 12 mg KOH/g stands out. Low levels of acidity as this particular mean better quality oil. In this regard it is important that further researches on processes of conversion of residual oil occur.

Evaluation of Distillation Curves for Bio-Oil Obtained From Thermal Cracking of Waste Cooking Oil

“…The bio-oil samples used in this study were obtained from the thermal cracking of waste cooking oil as described in a previous publication (Frainer et al, 2014). The experiments were conducted in a continuous bench-scale reactor (Botton et al, 2012;Botton et al, 2016) under isothermal and steady-state conditions, producing around 300 g of bio-oil in each run. The cracking temperature was 550ºC and the residence time in the reactor was varied, as shown in Table 1.…”

Caracterização Do Biochar Obtido a Partir Do Processo De Craqueamento Térmico E Termocatalítico Em Escala Piloto Do Lodo De Esgoto Oriundo Da Estação De Tratamento De Esgoto (Ete) Vila Da Barca Através De Análises Físico-Químicas E Mev-Eds

“…A rota de craqueamento térmico e termo catalítico se mostrou efetiva na conversão da biomassa utilizada sozinha e associada ao resíduo gorduroso, expandindo as possibilidades de seu emprego e corroborando o apresentado na literatura, como o descrito por Botton et al (2012). No que tange ao Biochar, o mesmo apresentou altos rendimentos tanto ao experimento 1(coque 1) quanto ao 2 (coque 2).…”

“…O lodo de esgoto é um resíduo oriundo das estações de tratamento de esgoto (ETE) que se caracteriza como o principal produto das reações químicas, bioquímicas e biológicas que ocorrem no tratamento de águas residuais urbanas, industriais ou agrícolas, onde predominam a matéria orgânica (VIEIRA, G. E., 2014), contendo todos os materiais sólidos não removidos durante o processo de tratamento de esgoto (VIANA, M., 2014 Dentre os inúmeros processos de conversão de biomassa, há os termoquímicos, que incluem o craqueamento térmico e termo-catalítico, onde são utilizadas temperaturas e/ou pressões elevadas para promover a alteração da estrutura química do material utilizado (KIM, K., et al 2013) Tais rotas se mostram promissoras formas de decomposição de lodo de esgoto, resíduos gordurosos e resíduos têxteis (BOTTON et al, 2012). Neste processo são gerados três subprotudos: os gases não condensáveis, o produto líquido orgânico (PLO) e Biochar, cujas características são sensíveis às condições de operação sob as quais foram produzidos, como temperatura de reação, emprego de catalizador etc.…”

Production and Characterization of Green gasoline Obtained by Thermal Catalytic Cracking of Crude Palm Oil (Elaeis guineensis, Jacq.) in a Pilot Plant

“…The pyrolysis or cracking of TAG, consists on the thermal decomposition of this raw material on the absence of oxygen or of any other oxygenated compounds [8,9], as well as on the presence or absence of catalysts, resulting on a blend of compounds, mostly by linear hydrocarbons [2,9,10]. The process of cracking of vegetal oils is realized with the objective of to produce biofuels, that is, fractions of hydrocarbons that are similar to gasoline, kerosene and to diesel, of fossil origin [3].…”

“…The process of cracking of vegetal oils is realized with the objective of to produce biofuels, that is, fractions of hydrocarbons that are similar to gasoline, kerosene and to diesel, of fossil origin [3]. Botton et al (2012) [9] report about the disadvantage of the process cracking, due to its high acidity index, due to fatty acids with short chains. Mancio et al (2016) [10] studied the influence of catalyst content on the physical-chemical properties, yield, and chemical composition of organic liquid products (OLP) obtained by thermal catalytic cracking of palm oil (Elaeis guineensis, Jacq.).…”