TORONTO -- As world leaders grapple with how to reduce their countries鈥� carbon dioxide emissions and the United Nations warns of an impending climate disaster, a team of researchers from the University of Toronto have come up with a way to convert the harmful greenhouse gas into one of the most widely used industrial chemicals.
Using a device called an electrolyzer, which uses renewable electricity to drive a chemical reaction, the researchers converted CO2 and water into ethylene, an ingredient in plastics.
Ted Sargent, a professor of electrical and computer engineering at the University of Toronto and the project鈥檚 lead, explained that ethylene is an important manufactured chemical that is used in everything from medical devices to synthetic fabrics.
鈥淭he ethylene market is about a $100-billion a year market so it鈥檚 a huge industry,鈥� he told CTV鈥檚 Your Morning on Wednesday.
By capturing and recycling CO2 waste into ethylene, Sargent said there is an opportunity to reduce greenhouse gas emissions while simultaneously eliminating the need to extract more oil to make plastics.
鈥淩enewable ethylene provides a route to displacing the fossil fuels that are currently the primary feedstock for this chemical [ethylene],鈥� Sargent said.
Already five years in the making, the carbon-neutral pathway the researchers have developed is still being perfected. In its latest iteration, the team partnered with chemistry professors from the California Institute of Technology and improved the system鈥檚 efficiency and lowered its operating cost.
The researchers鈥� work is described in .
As for its practical application, Sargent acknowledged that more works needs to be done before the system can be commercialized.
鈥淎 lot of us believe that we need to find new strategies to make CO2 into value,鈥� he said. 鈥淎t the moment it鈥檚 something we鈥檙e trying to avoid, it鈥檚 a liability, but by being able to synthesize something that we need anyway and the market will pay for, we鈥檙e creating a market for the consumption of the avoidance.鈥�
