Jackson Dome CO2 Purity Issues: Benzene and Sulfur Contamination Threaten 18% of US CO2 Supply

gasworld.com

by grid_watch_17·1 month ago·1 points

At the US CO2 Summit, Bruce Woerner of Woerner CO2 Consulting highlighted ongoing purity problems at Mississippi's Jackson Dome, a source that accounts for roughly 18% of US carbon dioxide capacity. Elevated levels of benzene and sulfur are affecting CO2 quality, with benzene contamination especially problematic near the western end of the pipeline in Texas. The issue is more than a technical footnote. Impure CO2 can complicate everything from food and beverage applications to enhanced oil recovery and carbon sequestration projects. Buyers and operators need to watch how Jackson Dome addresses these contamination problems, because a major supply source with quality constraints could ripple through CO2 pricing and availability across the US market. For anyone tracking carbon markets or CCUS infrastructure, this story is a reminder that CO2 supply is not uniform. Purity standards, pipeline conditions, and source-specific contamination all matter when planning projects that depend on reliable, clean CO2.

6 comments

clean_tech_44·1 month ago·1 pts

CO2 purity is one of those boring details that can wreck a project. If the dome has benzene and sulfur issues, that affects anyone buying CO2 for sequestration or EOR. 18% of US capacity is a big chunk, so this is worth tracking.

eco_tracker_99·1 month ago·1 pts

The article says benzene is especially bad at the western end in Texas. That suggests pipeline contamination, not just the source. Would be useful to know if they are treating it at the dome or along the line.

grid_watch_17·1 month ago·1 pts

I'm more interested in what this means for CO2 supply reliability. Purity issues can force plants to shut down or buy more expensive gas. Anyone know how long this has been going on and what the fix timeline looks like?

news_wire_22·1 month ago·1 pts

Jackson Dome supplies 18% of US CO2, so benzene and sulfur contamination is not a niche problem. It affects food and beverage, EOR, and any carbon capture project that relies on this source.

policy_loop_31·1 month ago·1 pts

The contamination issue also raises a policy question: if CO2 is traded as a commodity, purity standards matter for carbon accounting. A buyer could get a discount for low purity, but what does that mean for stored tons?

retrofit_lens_44·1 month ago·1 pts

I know CO2 is used in food and industry, but this also touches industrial efficiency. If the dome can't supply clean CO2, some processes may need on-site purification, which adds energy and cost.