[DavidPBL]

The short answer is with great difficulty!

If you do some back of napkin math on petrochemicals, which accounts for roughly 20% of oil usage there is a huge opportunity to displace petroleum using recycled carbon.

Global oil consumption is roughly 100 million barrels / day (today). 1 barrel is 160 kg, so annual petrochemical volumes are roughly 1.1 billion tons of product (20 million * 160 kg / 1000 (to get tons) * 365 days). That is at todays consumption. Chemical usage is expected to grow over the next several decades. Of course this is ignoring recycling carbon into e-fuels. There will be a need for those too.

In terms of actually scaling the technology, heavy industry is widespread and is a source of large scale point source emissions, ranging from as little as 10,000 tons of CO2 emissions / year all the way up to 10 million tons of CO2 / year. It is all about retrofitting these industrial sites with this type of technology to supply local markets the chemicals they need. This ignores the other sources of carbon that will become available via carbon capture (stationary or mobile) as well as direct air capture. It's tough to imagine exponential growth, but things can be very different by 2040.