Engine emissions encapsulation in asphalt
AssigneeCaterpillar Paving Products Inc.
InventorBrian D. Nagel
Life of this patent
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Abstract
The present disclosure includes various methods systems and apparatuses for carbon dioxide capture and utilization such as for encapsulation in asphalt. For example, a method can include 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.
Claims19
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.
A CO2 capture and utilization system, the system comprising:
- a plurality of working machines configured to perform one or more asphalt related tasks at a jobsite including laying asphalt on one or more surfaces, wherein one or more of the plurality of working machines include an onboard storage unit configured to store CO2 that results from combustion of fuel to operate the one or more of the plurality of working machines;
- a control system configured to control mixing of an amount of the CO2 from the storage unit with calcium;
- and
- an asphalt mixing chamber configured to form asphalt from the mixing of the amount of the CO2 and the calcium, one or more aggregates and asphalt cement.
A paving machine comprising:
- an internal combustion engine configured to combust fuel to produce power and generate a flow of exhaust;
- one or more motive apparatuses driven by the power produced by the internal combustion engine to move the paving machine along a surface of a jobsite;
- an engine emissions system configured to capture CO2 from the exhaust;
- a storage unit configured to store CO2;
- a control system configured to control mixing of an amount of the CO2 from the storage unit with calcium;
- and
- an asphalt mixing chamber configured to form asphalt from the mixing of the amount of the CO2 and the calcium, one or more aggregates and asphalt cement.
Dependencies are inferred from the claim text.