US 12,331,471 B2
Engine emissions encapsulation in asphalt
Brian D. Nagel, Ramsey, MN (US)
Assigned to Caterpillar Paving Products Inc., Brooklyn Park, MN (US)
Filed by Caterpillar Paving Products Inc., Brooklyn Park, MN (US)
Filed on Mar. 8, 2022, as Appl. No. 17/688,998.
Prior Publication US 2023/0287637 A1, Sep. 14, 2023
Int. Cl. E01C 19/46 (2006.01); C04B 14/28 (2006.01); C04B 26/26 (2006.01); F01N 3/08 (2006.01); F01N 13/08 (2010.01); C04B 111/00 (2006.01)
CPC E01C 19/46 (2013.01) [C04B 14/28 (2013.01); C04B 26/26 (2013.01); F01N 13/08 (2013.01); B01D 2257/504 (2013.01); C04B 2111/0075 (2013.01); F01N 3/0857 (2013.01); F01N 2240/26 (2013.01); F01N 2570/10 (2013.01); Y02P 40/18 (2015.11)] 19 Claims
OG exemplary drawing
 
1. A method comprising:
combusting fuel to generate a flow of exhaust from a working machine operating to perform one or more asphalt related tasks;
capturing CO2 from the exhaust;
storing the CO2 in a storage unit onboard the working machine;
forming asphalt that includes an amount of the CO2 from the storage unit by selectively mixing the amount of the CO2 from the storage unit with calcium; and
using the asphalt that is formed that includes the amount of the CO2 from the storage unit encapsulated therein at a jobsite.