Hi again, while working on the carbon capture methods from a renewable energy project, i realized that thermodynamics has somewhat of a huge role to play when discussing gaseous capture, what are some of the available methods such as OxyFuel where co2 and o2 can be captured however but aren't energy intensive or are very low energy requiring methods?
Many years ago BP offered a prize for a method to polymerize CO2, however I never followed that up. An electrochemical method to make Oxalate might work, or has that already been done?
Hai,
Carbon dioxide capture allows separation of CO2 from gas streams, allowing it to for post-combustion CO2 capture (PCC) as it has lower regeneration energy and include post-combustion capture, pre-combustion capture, and oxygen fuel or .Several methods, if not all, have been of interest to process intensification .. This is the thinking behind the oxygen approach, where instead of air, the power plant is fed approaches in use today requireclean-up of the NOx and SO2 prior to CO2
Best Wishes..
Air is about 20% oxygen and oxygen is "captured" all the time in various devices (e.g.oxygen masks). You can "capture " CO2 by freezing it as dry ice, but like any refrigeration method -- your fridge, for example -- it takes energy to remove enough energy to bring about the phase change. This is really elementary thermodynamics.
A replacement air for oxygen in several industrial processes allows getting CO2 in a concentrated (not diluted in nitrogen) form ready for the following utilization. Certainly, the first-step separation of air into oxygen and nitrogen is an energy intensive one but it opens new technological ways to offset this cost. Please, see my free access poster as an example.
@ Mikhail, can you kindly help with the link needed to access your free access poster
Poster Natural gas integrated power & syngas (hydrogen) generation cycle
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