Petra Nova is quite well known for being a massive failure: https://www.reuters.com/article/us-usa-energy-carbon-capture...

But the biggest failures are all the plants that were announced with CCS and then built without. (Or announced that they'd be retrofitted with CCS which never happened.)

"The struggles to make CCS (Carbon Capture and Storage) work"

https://www.carboncommentary.com/blog/2021/7/30/the-struggle...

This is an excellent link, thank you! Definitely going to share this is the future.

None of the Coal CCS have worked but Norway claim their Gas CCS has been working for 20 years. https://www.ice.org.uk/knowledge-and-resources/case-studies/...