Optimum Biodiesel Production Using Ductile Cast Iron as a Heterogeneous Catalyst

Biofuels production become a target for many researchers nowadays. Biodiesel is one the most important biofuels that are produced from biomass using economics and modern techniques. The ductile cast iron solid waste dust of wastes by industry which has bad effect on environment. This paper investigates possibility reusing as biodiesel heterogeneous catalyst used in its sunflower cooking oil. Four reaction parameters were chosen to determine their responses. M:O ratio, time temperature, loading. responses glycerol conversions. upper lower limits selected each parameter such (50–70 °C) (5–20) methanol oil molar (1–5%) loading, (1–4 h) time. Optimization was done with economic environmental targets include lowering cost, increasing volume produced, decreasing amount resulting glycerol. optimum reactions 20:1 65 °C 5 wt% 2 h time, stirring rate 750 rpm. conversion at this conditions 91.7 percent agreed all standards. usability test it found can be up 4 times after fresh required used.