Researchers at the U.S. Department of Energy's Idaho National Laboratory have developed a new process that efficiently converts captured carbon dioxide into syngas (a mixture of hydrogen and carbon monoxide) used to make fuels and chemicals at low temperatures and pressures. Personnel said that this new technology for carbon capture and storage technology to promote and reduce the level of carbon dioxide emissions of great significance.
The traditional method of recovering carbon from carbon dioxide requires high temperature and pressure, because at lower temperatures, carbon dioxide does not dissolve in water for a long time. To solve this problem, Idaho National Laboratory researchers used a new process Kind of polarity reversible solvent as the electrolyte medium.The liquid can be converted to polarity when exposed to chemical reagents to make the carbon dioxide more easily dissolved and converted into syngas by electrochemical method.The experiment shows that the new process at 25 degrees Celsius and 40 psig (0.28 MPa) pressure conditions, the best results, the conversion rate of more than 70%.
Carbon sequestration and sequestration, as a means of reducing greenhouse gas emissions, is valued by many countries, but excessive costs limit the widespread use of this technology, and if the captured carbon dioxide can be converted to usable products, Change.The researchers said the newly developed process integrates carbon capture and storage and carbon dioxide utilization of two areas of technology, for the first time to prove that the carbon dioxide can be captured directly from the production of syngas, which is to promote the application of carbon capture technology, restrictions Global carbon dioxide emissions are of great importance.
Researchers have applied for a temporary patent for the new technology in the United States, while the relevant paper was published in the latest issue of the Journal of Green Chemistry at the Royal Society of Chemistry.
