Inspenet, November 27, 2023.
A group of engineers in Switzerland have developed a CCS method to trap CO 2 emissions from today’s diesel trucks, preventing their release into the atmosphere by storing them in liquid form in a tank.
This team belongs to a new company called Qaptis and collaborated with the energy systems and industrial processes engineering laboratory of the Federal Polytechnic University of Lausanne. The motivation behind its invention is to provide an immediate solution for diesel trucks in circulation, since its technology allows the incorporation of this system even after the vehicles have been manufactured and sold.
This is how this CAC method works
The system begins by capturing all emissions from the truck’s tailpipe, which pass through a special filter zone containing an active powder pulverized to absorb CO 2 . Oxygen and nitrogen are allowed to be released into the atmosphere, while the CO 2- saturated dust is heated using waste heat from the diesel engine.
This process releases the CO 2 again, which is then captured in a circuit, suddenly cooled and compressed by a turbine to become liquid. The liquid form of carbon dioxide allows for more compact storage. The liquid CO 2 tanks will then be placed behind the driver’s cab, allowing the truck to collect it during its operation.
Subsequently, the liquid can be transported to larger tanks at the company headquarters or to collection points, with the aim of using it in various applications such as the food industry, fertilizers, the production of construction materials or even in the generation of synthetic fuels.
Given this advance, Swiss engineers affirm that their system requires an energy source, which they will obtain from the truck in which it is installed and they have optimized energy consumption by taking advantage of the residual heat of the engine during the operation of the moving truck.
They are currently looking to persuade companies with truck fleets to adopt this system to allow laboratory testing to be confirmed in real-life situations and eventually achieve full-scale production of this innovative system.
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