Researchers have successfully turned carbon dioxide into solid rock by injecting it into ancient lava flows
For the first time, scientists have injected carbon dioxide into ancient lava flows and watched it solidify, demonstrating that capturing carbon dioxide from the atmosphere or a power plant smokestack and safely storing it underground may be a realistic way to help reduce greenhouse gas emissions to tackle climate change, according to research published Friday.
Scientists working at the Wallula Basalt Pilot Project in Washington State turned liquefied carbon dioxide into solid rock by injecting the gas into basalt formations. Over a span of about two years, the carbon dioxide solidified into a mineral called ankerite, according to the study conducted by Pacific Northwest National Laboratory researchers. The research was published in the journal Environmental Science and Technology.
“This study further supports the idea that one of the major rock types on the planet—basalts—can be used to store carbon dioxide permanently and safely,” said study lead author Pete McGrail, a carbon dioxide and climate change researcher at PNNL.
Carbon capture and storage may be critical to helping prevent global warming from exceeding 2°C (3.6°F), either by capturing emissions from their source or by directly removing carbon dioxide from the atmosphere, according to the Intergovernmental Panel on Climate Change.
But scientists worry that storing captured carbon underground as a liquid or a gas may not be safe because stored carbon dioxide could explosively leak into the atmosphere through fissures in the earth or be exposed to terrorism risk, creating a climate catastrophe.
To solve that problem, researchers have been studying ways to store carbon dioxide underground as a solid, especially in basalt formations.
Basalt is a volcanic rock that makes up roughly 70 percent of the earth’s surface. When it is exposed to carbon dioxide and water, a chemical reaction occurs, converting the gas to a chalk-like solid material. Scientists previously thought the chemical reaction would take thousands of years to occur, but new research shows it can happen within a few years.
“Basalt storage is unique in the geologic sequestration of carbon dioxide because the principal trapping mechanism is a chemical reaction that locks the carbon dioxide away as a carbonate mineral that can never leak or return to the atmosphere,” McGrail said.
Earlier this year, researchers at the CarbFix project in Iceland were able to pump a geothermal power plant’s carbon dioxide-rich volcanic gases into deep underground but recently formed basalt formations and chemically solidify them in about two years.
The Latest on: Carbon dioxide sequestration
via Google News
The Latest on: Carbon dioxide sequestration
- Energy summit spotlights business opportunities, political divisivenesson November 13, 2019 at 5:16 pm
Even petroleum producers and geologists spoke hopefully about carbon sequestration and reducing the state's reliance on imported oil ... to converting Central Valley agricultural waste into methane as ...
- Democratic Presidential Contenders Chart Different Paths to Clean Energyon November 13, 2019 at 1:36 pm
“We find that even with break-neck electrification of vehicles, buildings, and industry, unprecedented improvements in energy efficiency, completely decarbonized power generation, and [carbon dioxide ...
- Clean energy, yes. But divisions put Dems on different pathson November 13, 2019 at 3:04 am
"We find that even with break-neck electrification of vehicles, buildings, and industry, unprecedented improvements in energy efficiency, completely decarbonized power generation, and [carbon dioxide ...
- What if our clothes could sequester carbon? This raincoat doeson November 12, 2019 at 12:00 am
McCurdy is a designer and researcher who developed an alternative plastic made from algae, which consumes carbon dioxide, as her thesis at the ... a process more commonly known as carbon sequestration ...
- Study shows cover crops and perennials do not necessarily increase carbon storage in soilon November 11, 2019 at 5:15 am
However, the microbes may digest much of the carbon provided by the cover crop, converting it into carbon dioxide, which is released to the atmosphere ... but I wouldn't hang my hat on rapid carbon ...
- Report: $10.7B Needed to Push Forward Carbon Removal Technologieson November 6, 2019 at 9:22 am
Moniz, who spoke at the Bipartisan Policy Center (BPC) in Washington, D.C., Oct. 30 to discuss his organization’s report on CO2 removal technologies, also called negative emissions technologies, said, ...
- Indigo Ag Announces Global Cohort of Innovators Propelling Agriculture Forward as a Key Climate Solutionon November 5, 2019 at 6:00 am
... s global call for solutions to accelerate carbon sequestration, represents industry-leading efforts to optimize the impact of regenerative agricultural practices. “Agriculture represents the most ...
- A New Front Against Climate Catastrophe Is Getting Attention From Big Agricultureon November 5, 2019 at 3:04 am
Carbon dioxide levels in the atmosphere are at their highest in 3 million years ... Rattan Lal, a professor of soil physics and director of Ohio State University’s Carbon Management and Sequestration ...
- Defra to buy carbon credits to incentivise tree plantingon November 5, 2019 at 2:09 am
This means that woodland creation projects aimed at long-term carbon sequestration are often unviable ... To bid in the auction, land managers will need to calculate how much money they need (per ...
via Bing News