On the pilot plant developed at the experimental station of Las Palmerillas, which depends on Spanish bank Cajamar, Almeria-based researchers try to prove the validity of this new method for eliminating CO2 emissions.
It seems that in one year time, the system will be fully operative and therefore tests can be started at an industrial level. Researchers say that ENDESA, which is promoting this research line, may test its application in some of the facilities which, a priori, could show better results- the small gas plants.
’The mechanism developed is simple on paper. By the gas emission points a water tank would be installed in order to retain the pollutant gases resulting from a specific industrial process. This polluted water would go through a system of bioreactors with a microalgae culture system, which would then transform the CO2 emissions into vegetal matter and oxygen through the photosynthesis process’, researchers say.
This system also offers the added value of the resulting materials, as in addition to purified air, the organic matter obtained could be reused as fuel for biomass plants, transforming it into biofuel through fermentation or using it in agriculture.
Today, the single technology available with similar applications is based on the use of etanolamines, which do not have the added value microalgae have and also their applicability and profitability in industrial processes shows is not very satisfactory, the resulting gases being used for geological storage.
Greenhouses, another option to transform CO2
In parallel to the above, and in collaboration with Madrid-based company Besel, researchers are trying to use CO2 directly in greenhouses. This way, if a small combined-cycle plant was installed in a greenhouse area, the gas would be insufflated to the greenhouses and the actual plants would then contribute to its depuration before being emitted into the atmosphere.
Today, they are experimenting how much CO2 is beneficial for tomatoes, peppers and cucumbers, and in what distribution rate. It is already known that this gas can even double the production of vegetables (in fact, its use in agriculture is rather expensive) but the appropriate amount for its whole life cycle and the tolerable proportion of other substances have not been determined yet.
Both the State and companies hope to find a way to reduce the CO2 emissions by carrying out different research lines. Some research groups focus on optimising the existing technology, whereas others try to improve the gas storage techniques (for example, using tanks similarly to the way radioactive waste is stored). Other alternatives are the search for better solutions in the combustion process (the used matter burns more and emits less gases), gas capture (not only etanolamines) and the valuation of the emitted CO2, which is the field in which researchers of the University of Almeria are working on. All these ways are within the CENIT project framework, designed by the Spanish Ministry of Industry.
Other Spanish engineering and anergy companies, such as Unión FENOSA, Besel, Soluciona, etc, as well as other universities and Spanish research centres like Ciemat, the Spanish national research centre, and the universities of Alicante, León, Complutense and Rey Juan Carlos de Madrid, are also working on this R&D&I project, led by Endesa whose aim is to reduce the CO2 emissions of power stations.
Ismael Gaona | alfa
Listening in: Acoustic monitoring devices detect illegal hunting and logging
14.12.2017 | Gesellschaft für Ökologie e.V.
How fires are changing the tundra’s face
12.12.2017 | Gesellschaft für Ökologie e.V.
DNA molecules that follow specific instructions could offer more precise molecular control of synthetic chemical systems, a discovery that opens the door for engineers to create molecular machines with new and complex behaviors.
Researchers have created chemical amplifiers and a chemical oscillator using a systematic method that has the potential to embed sophisticated circuit...
MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.
Concerning the development of quantum memories for the realization of global quantum networks, scientists of the Quantum Dynamics Division led by Professor...
Researchers have developed a water cloaking concept based on electromagnetic forces that could eliminate an object's wake, greatly reducing its drag while...
Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.
To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...
The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.
Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...
11.12.2017 | Event News
08.12.2017 | Event News
07.12.2017 | Event News
15.12.2017 | Power and Electrical Engineering
15.12.2017 | Materials Sciences
15.12.2017 | Life Sciences