The past few years a significant interest in biofuels as renewable energy sources , was enacted a number of European countries and the United States special laws to encourage the production of this type of fuel , which raised its production controversy globally due to the adoption of manufacturing - and directly - on some agricultural crops - such as corn , soybeans soy and others - which affects the global food basket .
Studies show that ethanol - which is extracted from corn - has replaced 10% of the gasoline used in the United States in transportation , as defined under U.S. law an upper limit for the extraction of ethanol from corn not to exceed 15 billion gallons per year , but the global expansion in production faces great challenges and needs the support of senior government , has emerged from here the idea of the production of biofuels from algae as a source of renewable energy .
A promising source of energy
Algae, marine plants simple configuration , most of them unable to make the process of photosynthesis , where you can produce vegetable oil , is processed chemically for biodiesel Biodiesel, capable of running many of the engines.
And excels algae on other plant crops producing oils with a number of features of the task , as they multiply rapidly , and does not require large areas for their growth , as can be cultured in open ponds or in bioreactors optical , and needs to grow to the sun , water and carbon dioxide and some nutrients phosphate The nitrates and iron.
Also, the algae do not need fertile soil to grow , as it can be cultured in swamps or in special tanks are constructed in places that emit large amounts of carbon dioxide necessary for their growth , power generation stations of places and industrial emissions contaminated .
Shows the researcher Jim Sears - who founded the company Solex Biofuels Solix Biofeuls for the production of biofuels from algae - that the United States seeks to produce 140 billion gallons of biodiesel per year , and this requires the cultivation of three billion acres of agricultural land flora of soybean or about one billion acres of land ginseng canola , while can produce biodiesel that amount through the cultivation of about 95 million acres of algae , since these plants are simple to install has a very large surface area for their size , and therefore grow at a high speed .