Enitecnologie R&D project on microalgae biofixation of CO2Outdoor comparative tests of biomass productivity using flue gas CO2 from a NGCC power plant
Greenhouse Gas Control Technologies 7
Microalgae mass cultures could contribute to the mitigation of greenhouse gas (GHG) emissions by enabling the direct utilization of fossil CO 2 streams from concentrated sources and the production from the algal biomass of renewable biofuels and fossil fuel-sparing products. EniTecnologie, the R&D arm of the Italian oil & gas company Eni, is carrying out an in-house R&D project focused on demonstrating and improving on the achievable biomass productivities of outdoor microalgale mass cultures
... ale mass cultures under outdoor conditions. The objective is toWe evaluated the feasibility of fixing flue gas CO 2 from a natural gas combined cycle (NGCC) power plant and to produce renewable methane fuel to replace a fraction of the input fossil methane of input. Initial experiments at the EniTecnologie R&D Centre in Monterotondo, central Italy, compared the productivity of thea marine microalga, Tetraselmis suecica, mass cultured in an outdoor experimental system consisting of a scale-down system that design simulatesing a large-scale microalgae production systems and comprisesing both open ponds and closed photobioreactors. RThe results indicated that closed and open cultivation systems have similar productivities, , and that in open ponds the areal values are close to the maximal productivities so far reported under outdoor operating conditions and significantly higher than those using flue gas CO 2 in similar scale-down systems. This R&D activity is being coordinated with other projects on microalgae mass cultures for biofixation of CO 2 througha constituent project of the International Network on Biofixation of CO 2 and GHG Abatement with Microalgae, an initiative that operates under the auspices of the IEA GHG R&D Programme.