A Two-Step Approach to Demetallation of Algal Biocrude

Much of humanity’s progress in the past century has relied on use of fossil fuels. Although these sources have provided undeniably cheap and convenient access to energy, their continued use has contributed to problems such as smog, acid raid, and the rising level of greenhouse gasses. Biofuels have emerged as a renewable and potentially carbon-neutral alternative to fossil fuels. Specifically, biofuels made from algae are advantageous because of their high lipid density, the ability to be grown on low-value land, and the fact that the sourcing doesn't interfere with food supply. Although algal biofuels have shown promise, the field is still relatively new. One ongoing problem that has stagnated adoption is the high metal content inherent in the sourcing of these fuels. Before algal biofuels can become commercialized, a cost-effective method for removing metals in the biocrude must be developed. This project addresses multiple methods for biocrude demetallation, and investigates which conditions provide the least metal contaminated products.