Control of exhaust emissions from an internal combustion engine

Details Control of exhaust emissions from an internal combustion engine Control of exhaust emissions from an internal combustion engine

1995-11-29

1997-11-18

Kwon, John T.

Power plants

Internal combustion engine with treatment or handling of...

Methods

60297, F01N 300

Patent

active

056875657

ABSTRACT:
Exhaust gas emissions from an internal combustion engine are controlled through the use of a heat exchanger, a sulfur oxide absorbent, and a catalytic converter. The exhaust gas is contacted with the sulfur oxide absorbent before it is passed to the catalytic converter, and the heat exchanger is used to extract heat from the exhaust gas before the exhaust gas is contacted with the sulfur oxide absorbent. The heat extracted from the exhaust gas by the heat exchanger is then used to heat the catalytic converter. In a preferred embodiment, the exhaust gas is also contacted with a hydrocarbon adsorbent which: (1) adsorbs organic compounds, such as hydrocarbons, from the exhaust gas at the low temperatures which are typical of an engine cold-start, and (2) desorbs them at the higher temperatures which are reached after sustained engine operation.

REFERENCES:
patent: 3429656 (1969-02-01), Taylor et al.
patent: 3443886 (1969-05-01), Taylor et al.
patent: 3910042 (1975-10-01), Yuge et al.
patent: 4041128 (1977-08-01), Bramer et al.
patent: 4134733 (1979-01-01), Volker et al.
patent: 4469589 (1984-09-01), Yoo et al.
patent: 4472267 (1984-09-01), Yoo et al.
patent: 4497902 (1985-02-01), Bertolacini et al.
patent: 4985210 (1991-01-01), Minami
patent: 5078979 (1992-01-01), Dunne
patent: 5125231 (1992-06-01), Patil et al.
patent: 5158753 (1992-10-01), Take et al.
patent: 5303547 (1994-04-01), Mieville et al.
patent: 5426083 (1995-06-01), Bhattacharyya et al.
patent: 5499501 (1996-03-01), Kato et al.
William R. Leppard, "Sulfate Control Technology Assessment, Phase I: Literature Search and Analysis," PB-240 995, Report No. EPA-460/3-75-002-a prepared for the U.S. Environmental Protection Agency under Contract No. 68-03-0497, Nov. 1974.
I. Gottberg et al., "Sulphur Storage and Hydrogen Sulphide Release from a Three-Way Catalyst Equipped Car," SAE Technical Paper Series, Paper No. 890491, Feb. 27-Mar. 3, 1989.

Affiliated with

Also associated with

Rating

Control of exhaust emissions from an internal combustion engine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Control of exhaust emissions from an internal combustion engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control of exhaust emissions from an internal combustion engine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1557661