Patent ID: 9598993
Date: 2017-03-21
CPC Classifications: B01D,F01N,Y02A,Y02C,Y02T

Claim:
1. A process for reducing the amount of CO 2 released into the atmosphere with the exhaust gas stream produced by the combustion of a hydrocarbon fuel in an internal combustion engine (ICE) used to power a vehicle by capturing at least a portion of the CO 2 with a sorbent on board the vehicle, recovering the CO 2 from the sorbent and compressing the CO 2 for temporary storage on board the vehicle, the process characterized by a. passing the hot exhaust gas stream from the ICE through a plurality of heat exchangers in a first heat exchange zone to reduce the temperature of the exhaust gas stream to a value in a predetermined temperature range; b. contacting the cooled exhaust gas stream in an absorption zone with a liquid CO c. separating the CO d. discharging the remaining exhaust gas stream of reduced CO e. pressurizing the CO f. separating the CO g. passing the vaporized solvent/CO h. passing the superheated solvent/CO i. passing the hot expanded solvent/CO j. passing the solvent/CO k. separating the condensed solvent from the CO l. recovering the substantially pure CO m. recovering the pressurized pure CO n. passing the pressurized CO o. introducing the pressurized CO p. passing the reduced-pressure concentrated CO q. cooling the CO r. pressurizing the CO