Biofuel Production from Used Cooking Oil Using Pyrolysis Process

Abstract

This paper aims to evaluate the production of biodiesel from Waste Cooking Oil (WCO) using the Pyrolysis process with catalysts. The test rig used in the present study is designed and built in the lab specifically for this purpose. To investigate the effect of adding different types of catalysts with different concentrations on the quantity of hydrolyzed biodiesel. Noah and KOH catalysts with concentration of 0.5%, 1%, 3% and 10% by weight are used. Moreover, the effect of catalyst type on the energy consumption during the pyrolysis process is considered. The experimental results showed that the biodiesel produced by pyrolysis process form the Waste Cooking Oil has significant potential as an alternative source of biodiesel fuel. The addition of Noah catalyst with 1% concentration by weight provided the highest amount of hydrolyzed biodiesel and lowest energy consumption compared to adding KOH catalyst and without catalyst. Additionally, the experiments showed that the amount of biodiesel produced from the pyrolysis process is inversely proportional to the catalyst concentration.

Current advances and future outlook of heterogeneous catalytic transesterification towards biodiesel production from waste cooking oil

“…Also, it was outlined that waste cooking oil pyrolyzed with 1% NaOH catalyst concentration gave a 70% biofuel yield in a temperature range of 235–310 °C. 70 However, this method needs sophisticated machinery, produces compounds with short chains, has limited volatility, and provides non-oxygenated value. Due to the outdated nature of this biodiesel production method, modern methods such as ultrasonic reactors, microwave technologies, and the supercritical process are currently used.…”

KNO3-Loaded Coffee Husk Ash as a Heterogeneous Alkali Catalyst for Waste Frying Oil Valorization into Biodiesel

“…Among biofuels, biodiesel is the best alternative to replace fossil diesel fuel. The benefits of biodiesel include lower overall exhaust emission gases and toxicity, biodegradability, sourcing from renewable and domestic feedstocks, low sulfur content, superior flashpoint, improved combustion efficiency, and a 78% reduction in net CO 2 emissions based on life cycle assessment. − …”

Catalytic Co-Cracking of Used Cooking Oil Methyl Ester and Polystyrene Waste for Gasoline-Rich Biofuel Over Mesoporous Al-MCM-41 Catalyst

“…This amount is equivalent to 35% of annual biodiesel production in Indonesia. In addition, these feedstock are not competitive with human consumption or agriculture and their utilization can solve environmental issues associated with their disposal [6]. Thermochemical technologies such as catalytic pyrolysis can be used to convert biomass sources such as used cooking oil into bio-oil [7].…”