CCUS-CO2 Technology

CCUS refers to CO2 capture, transport, utilization, and storage technologies combined to abate CO2 emissions. Out of the five CO2 capture technologies post-combustion, oxy-combustion, pre-combustion, and natural gas sweetening are the four that occur at different steps of the combustion value chain and the fifth one is emerging new Direct Air Capture (DAC) technology. The point source emissions have a higher CO2 percentage than the lower, ppm level, in the DAC process.

There are many CO2 technologies currently in advanced stages of development that have the potential to further reduce costs, require less energy, and new approaches for carbon capture like the Allam cycle, where a CO2 stream rather than steam is used to spin a turbine, in the power-generation process. The three main options for storage and reuse are passive storage aka sequestration in the underground saline aquifers or depleted petroleum reservoirs, beneficial reuse involves Enhanced Oil Recovery (EOR) or injecting in coal seam for Enhanced Coal Bed Methane (ECBM) and industrial use.

Applications of CO2

Once captured, CO2 can be utilized for generating many useful products and the near-term market potential of CO2-derived streams are sustainable alternate fuels, chemicals including urea, alcohol, baking soda, mineralization, building materials like…