A new concept developed in Switzerland has the potential to reduce CO2 emissions from trucks by almost 90%. The concept has now been patented.
Researchers at the Swiss Federal Institute of Technology in Lausanne (EPFL) have patented a new concept that can cut trucks’ CO2 emissions by nearly 90%. According to a press release, the scientists behind the new concept propose combining several technologies at the EPFL.
The concept captures CO2 directly in a truck’s exhaust system and liquifies it in a box on the vehicle’s roof. The liquid CO2 is then delivered to a service station, where it is turned into conventional fuel using renewable energy.
The entire process takes place within a 2-meter long capsule placed above the driver’s cabin. “The weight of the capsule and the tank is only 7% of the vehicle’s payload,” said François Maréchal from the EPFL’s School of Engineering. “The process itself uses little energy, because all of its stages have been optimized.”
The researchers have calculated that a truck using 1 kg of conventional fuel could produce 3 kg of liquid CO2. What’s more, the conversion does not involve any energy penalty. The system can be easily retrofitted to existing trucks, and, in theory, could even work with buses or boats using any type of fuel.
With this system, only 10% of CO2 emissions cannot be recycled. The researchers propose offsetting those using biomass.
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