The project, run by ethanol producer Archer Daniels Midland and partners, received $281 million in taxpayer dollars via Department of Energy grants. It has stored more than 2.8 million metric tons of CO2 since 2011. However, EPA records show that represents a capture rate of only about 10-12 percent of the plant’s emissions each year at most, allowing the rest of the carbon dioxide to escape into the atmosphere. This small percentage raises questions about whether industrial-scale carbon capture technology can be a meaningful solution to global warming.
So this is that 90% of a factories CO2 emissions are not being captured by it’s on site carbon capture facility. (Not that the carbon capture plant is releasing emissions).
On my (quick) read of the article, I don’t think it said why that was. Was the plant at capacity, or did it have headroom, but the CO2 was just not being effectively captured to be stored?