A sustainability study of the processing of kitchen waste as a potential source of biofuel: Biodiesel production from waste cooking oil (WCO)
A sustainability study of the processing of kitchen waste as a potential source of biofuel: Biodiesel production from waste cooking oil (WCO)
复制标题
将厨余垃圾加工作为生物燃料潜在来源的可持续性研究：利用废弃食用油生产生物柴油 (WCO)
DOI：
10.1016/j.matpr.2022.04.526
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
N. Haron
中科院分区：
文献类型：
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作者：
M. Suzihaque;Nurin Syazwina;H. Alwi;U. K. Ibrahim;S. Abdullah;N. Haron
世界粮食系统挑战中最令人担忧的组成部分之一是食物浪费，在发达国家，这是一个特别严重的问题。废弃食用油(WCO)是一种可回收利用的液体食物垃圾。WCO的适当回收做法有助于减少对环境的不利影响，并可通过将其转化为生物柴油和肥皂等工业产品进行再利用。随着全球市场原油价格的上涨和常规燃料的枯竭，世界也需要替代燃料来满足全球日益增长的能源需求。本文通过酯交换过程将WCO转化为生物柴油，研究了WCO作为生物燃料来源的潜力。用标准滴定法测定WCO的酸值，如果FFA的含量大于2%，则WCO需要进行前处理。酯交换反应以氢氧化钠为催化剂，甲醇为反应醇。对生产的生物柴油进行了性能测试，并与ASTMD6751和EN 14214生物柴油标准进行了比较。实验表明，从废弃食用油中可获得90%以上的生物柴油产率。经过多次洗涤的生物柴油的性质，如酸值、密度、运动粘度、浊点和倾点，通常接近ASTMD6751和EN 14214生物柴油标准，这可以在样本1中看到。从世界海关组织生产生物柴油是处理这些废物的替代方案之一，因为它对环境产生了有益的影响。由于WCO是可生物降解的、经济的、环境友好的，而且总是可获得的，利用废弃食用油生产生物柴油的经济可行性是可行的。
One of the most concerned components in world’s food system challenges is food waste, and it is particularly a critical issue in developed countries. Waste cooking oil (WCO) is one of the liquid food wastes that are recyclable. A proper recycling practice of WCO helps to reduce the adverse impact on environment and it can be reused by converting it into industrial products such as biodiesel and soap. With the rising in cost of crude oil in the global market and depletion of conventional fuel, the world also is in need of alternative fuel to fulfil the global rising of energy demands. This paper studies on the potential of WCO as a source of biofuel by converting it to biodiesel by transesterification process. The acid value of the WCO is determined using standard titration method, in which, if the percentage of FFA is more than 2%, in which the WCO needs to undergo pre-treatment process. Sodium hydroxide is used as a catalyst and methanol as the reacting alcohol in transesterification. The characteristics of the biodiesel produced were tested and compared with the standard specification of the biodiesel; ASTM D6751 and EN 14214. From the experiment conducted, more than 90% of biodiesel yield can be obtained from the waste cooking oil. The properties of biodiesel that undergoes more washing process, such as acid value, density, kinematic viscosity, and cloud and pour points have values typically close to the ASTM D6751 and EN 14214 biodiesel standards, which can be seen in Sample 1. Producing biodiesel from WCO is one of the alternatives of disposing these waste products as it gives beneficial impacts to the environment. Since WCO is biodegradable, economical, environmental friendly and always available, the economic feasibility of biodiesel production from waste cooking oil is viable.