Also known as Oilgae, it is being considered as the third generation biofuel. Its production is low cost and high yield, almost 30 times more energy production per hectare compared to the land required for other conventional feedstocks to produce biofuels. Currently, algae farming (algae farming) is conducting research to produce different fuels to harvest to make vegetable oil, biodiesel, bioethanol, biomethanol, biobutanol and other biofuels and it seems that if the methodology is sustainable than other biofuels available, then using algae to produce biodiesel would be the only viable method to replace the need for gasoline used today for automobiles.
Biofuels are considered the best way to reduce greenhouse gas emissions and switch to polluting fossil fuels. But recently, according to the findings of Nobel laureate Paul Cortzen, some of the most widely used biofuels, bioethanol from corn and biodiesel from rapeseed, release nitrous oxide (N2O) and are contributing much more to global warming than fossil fuels in this moment. Processing biofuel in the form of algae has been proven to capture large amounts of CO2 and N2O available in the atmosphere (40% on a full day and 80% on sunny days) and one acre of algae can produce enough oil to make 5,000 gallons . of biodiesel in a year.
From my point of view, biodiesel and bioethanol from rapeseed and corn not only contribute to global warming, but cannot be economically sustainable because it is one of the main sources of edible oil. Ethanol demand may threaten food prices. A recent study conducted by the Center for Agricultural and Rural Development at Iowa State University revealed that considering the high crude oil price scenario, ethanol production in the US producing and causing higher beef prices for consumers, reduction in production in general for all segments of the meat sector, and even greater reductions in exports of grains and meat. Taking into account the sustainability and economic factor, biofuel from algae cultivation seems to be the most promising fuel for the future.