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Catalytic production of levulinic acid from matured coconut water

机译:从成熟的椰子水催化生产乙酰丙酸

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Depletion of fossil as fuel resources due to increasing energy demands has led to a challenging transition to renewable abundance bio-based feedstock.Levulinic acid is a versatile platform chemical that can be utilized to produce fuels,solvents,polymers,pharmaceutical and agrochemical products.It can be synthesized from natural resources such as lignosellulosic biomass,sugars and environmental waste.Matured coconut water is an agro waste that produced mainly from coconut milk industry which contains variety of sugars and minerals.This study was carried out on synthesizing levulinic acid from matured coconut water by focusing on the effect of catalytic acid to coconut water ratio,types of acid and reaction time.The matured coconut water was mixed with sulfuric acid at three different concentrations(0.5 M,0.75 M,1.0 M)in 9:1,8:2,and 7:3 ratios respectively.Mixtures were heated at 100°C for 30 minutes.The ratio decided was carried out into determine the best types of acid(sulfuric acid,hydrochloric acid,phosphoric acid)followed by the reaction time(15,30,45,60 minutes).Levulinic acid production increase as concentration of acid increase.However,low acid percentage in coconut water medium was appropriate enough to give high yield of product(0.135%).Both hydrochloric and sulfuric acid catalyzed more product at high concentration.
机译:由于能源需求增加导致化石作为燃料资源导致了对可再生丰富生物基原料的挑战过渡。整体酸是一种通用平台化学品,可用于生产燃料,溶剂,聚合物,制药和农用化学品。它可以从自然资源中合成,如木质素颗粒状生物质,糖和环境废物。椰子水是一种农业废物,主要来自椰奶工业,其中含有各种糖和矿物质。本研究是在从成熟的椰子中合成紫水酸的研究通过专注于催化酸与椰子水比的影响,酸和反应时间的效果。成熟的椰子水以3种不同浓度(0.5μm,0.75m,1.0m)的硫酸混合在9:1,8 :2和7:3分别分别在100℃下加热30分钟。比例决定确定最佳类型的酸(硫酸,Hy偏氯酸,磷酸,磷酸,其次是反应时间(15,30,45,60分钟).Levulinic酸产生的增加随着酸浓度的增加而增加。然而,椰子水介质中的低酸百分比足以提供高产品(0.135%)。盐酸和硫酸均以高浓度催化更多产品。

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