Three companies are proposing pipelines across the Midwest that would carry carbon dioxide captured from ethanol plants to underground sequestration sites. The plan is to inject the CO2 deep into rock formations under Illinois and North Dakota, but some landowners are pushing back.
This story is a part of a Harvest Public Media series on CO2 pipelines. Read our first story here.
Karen Brocklesby describes herself as a farm wife and a mother — but over the past several months, she’s also become somewhat of an activist.
Brocklesby lives in Christian County, Illinois. She’s one of many rural landowners there fighting to keep a company called Navigator Ventures LLC from injecting carbon dioxide beneath her farmland.
“This potential for damaging the water for the future – to me, it just is foolishness. Especially in areas that are good farming areas,” Brockelsby said.
Brockelsby has a list of concerns about carbon sequestration. But chief among them is the worry that sequestered carbon could contaminate the area’s water supply.
“It would be a danger to both our agriculture production and, even more importantly, to the drinking water for everybody who lives in this area,” she said.
Brocklesby isn’t alone. Christian County is awash in signs and billboards urging residents to protect the aquifer from pipeline projects.
The Navigator pipeline that Brockelsby and her neighbors oppose would carry CO2 from ethanol plants through five states, including Iowa and Nebraska, to two injection sites in central Illinois. The CO2 would then be pumped 6,000 feet underground into “pore space” — tiny areas in the subsurface that are unoccupied by solid material.
And Navigator’s pipeline isn’t the only project being proposed in the Midwest. Wolf Carbon Solutions also plans to sink CO2 underground in Illinois, while Summit Carbon Solutions proposes capturing CO2 from ethanol plants in Iowa, Minnesota, Nebraska and South Dakota and injecting it underground in North Dakota.
Landowners like Brockelsby have been organizing for months to stop companies from acquiring the land rights they need to store carbon.
“I would like to slow them down to the point where they give up on Illinois entirely,” Brockelsby said.
Why Illinois?
The companies are targeting the state because of a 60,000-square-mile basin known as the Mount Simon Sandstone that geologists like Sallie Greenberg say is ideal for carbon storage.
“In geologic storage you look for something that is a container and something that is a seal,” explained Greenberg, who is a principal research scientist with the Illinois Geological Survey.
The bottom of the Illinois basin is lined with layers of rock that Greenberg compares it to a seven-layer salad. The bottom layer is composed of highly permeable sandstone and eventually capped by an impermeable layer of shale.
It’s the particular configuration of those different types of rocks that make Illinois “highly suitable” for the geologic storage of carbon dioxide, Greenberg said.
This kind of project isn’t new.
The Mount Simon Sandstone is already storing over a million metric tons of CO2 captured from the Archer Daniels Midland ethanol plant as part of a test project led by Greenburg called the Illinois Basin-Decatur Project.
The project was designed to test carbon capture and storage technology, or CCS, at a commercial scale. And it’s an example that Navigator CO2 points to as evidence that carbon sequestration works.
“Demonstration projects like ADM have been able to prove points, over time, that this absolutely can be done successfully and safely,” said Navigator spokesperson Elizabeth Burns-Thompson.
But whereas ADM is storing around a million metric tons of carbon, Burns-Thompson has said that Navigator will capture 15-million metric tons each year.
And that makes landowners like Brockelsby nervous.
“I mean what they’re doing at ADM I think is, like, 3% of what they’re proposing to do here in my neighborhood,” she said.
Source: kcur.org
Photo Credit: Flickr - Maureen
Categories: Kansas, Energy, General