The demise of a well-funded algae fuel company earlier this year doesn’t seem to be deterring startups, as well as oil and plastics companies, from working on new algae fuel tech. This morning Algenol Biofuels , a Naples, Florida-based company that uses carbon dioxide from power plants to grow algae in order to make ethanol, tells the New York Times that it is building a demonstration plant with Dow Chemical that will create 3,100 bioreactors (clear troughs that grow algae) that can produce