Capturing CO2 from flue gas requires a lot of energy (for something like a coal fired power plant, it takes about 30% of the power plant's energy output to capture the CO2) and you still have to deal with the CO2 after you've captured it - what do you do with it?
The only way to sequester it is to inject into underground reservoirs, but that requires a very specific geology which very few places have.
You can liquefy it and sell it... but then it's typically going to get released to the atmosphere by the purchaser, not sequestered.
I am not an expert in waste incineration (although I am an expert in carbon capture processes) but I seriously doubt that they use CO2 scrubbers. Scrubbers for other nasty molecules like SO2, sure, but the CO2 is probably just sent out into the atmosphere.
The only way to sequester it is to inject into underground reservoirs, but that requires a very specific geology which very few places have.
You can liquefy it and sell it... but then it's typically going to get released to the atmosphere by the purchaser, not sequestered.
I am not an expert in waste incineration (although I am an expert in carbon capture processes) but I seriously doubt that they use CO2 scrubbers. Scrubbers for other nasty molecules like SO2, sure, but the CO2 is probably just sent out into the atmosphere.