SE8200991L - Diesel engine exhaust gas cleansing - uses catalyst bed for mixt. of gas-contained gas oil and its combustion - Google Patents

Diesel engine exhaust gas cleansing - uses catalyst bed for mixt. of gas-contained gas oil and its combustion

Info

Publication number
SE8200991L
SE8200991L SE8200991A SE8200991A SE8200991L SE 8200991 L SE8200991 L SE 8200991L SE 8200991 A SE8200991 A SE 8200991A SE 8200991 A SE8200991 A SE 8200991A SE 8200991 L SE8200991 L SE 8200991L
Authority
SE
Sweden
Prior art keywords
gas
catalyst bed
bed
temp
exhaust gas
Prior art date
Application number
SE8200991A
Other languages
Swedish (sv)
Inventor
A Hergart
Original Assignee
Unikat Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Unikat Ab filed Critical Unikat Ab
Priority to SE8200991A priority Critical patent/SE8200991L/en
Publication of SE8200991L publication Critical patent/SE8200991L/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
    • F01N3/2033—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using a fuel burner or introducing fuel into exhaust duct

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Toxicology (AREA)
  • General Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

In cleaning the exhaust gas of a combustion engine, the gases pass through a catalyst bed whose temp. is sensed and controlled. The fall of the catalyst bed temp. to a predetermined valve starts mixing of liquefied petroleum gas with the exhaust gas upstream of the catalyst bed. Gases from the engine (10) pass along the pipe (11) to the cleaning unit (12). This has a perforated container (13) which contains a catalyst bed (14) of catalyst granules. After passing through the bed, the gases go through the silencer to the atmos. The bed has an electrical heating coil (15) with connecting cable (16). Upstream of the exhaust cleaning unit (12) there is a nozzle (17) connected to a pipe (18), solenoid valve (19) and LPG tank (20). The temp. sensor (21) senses the bed temp. and provides an input for the control unit (22). This opens and closes the valve (19). (Provisional Basic previously advised in Week 83/39).
SE8200991A 1982-02-18 1982-02-18 Diesel engine exhaust gas cleansing - uses catalyst bed for mixt. of gas-contained gas oil and its combustion SE8200991L (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE8200991A SE8200991L (en) 1982-02-18 1982-02-18 Diesel engine exhaust gas cleansing - uses catalyst bed for mixt. of gas-contained gas oil and its combustion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8200991A SE8200991L (en) 1982-02-18 1982-02-18 Diesel engine exhaust gas cleansing - uses catalyst bed for mixt. of gas-contained gas oil and its combustion

Publications (1)

Publication Number Publication Date
SE8200991L true SE8200991L (en) 1983-08-19

Family

ID=20346036

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8200991A SE8200991L (en) 1982-02-18 1982-02-18 Diesel engine exhaust gas cleansing - uses catalyst bed for mixt. of gas-contained gas oil and its combustion

Country Status (1)

Country Link
SE (1) SE8200991L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10787946B2 (en) 2018-09-19 2020-09-29 Faurecia Emissions Control Technologies, Usa, Llc Heated dosing mixer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10787946B2 (en) 2018-09-19 2020-09-29 Faurecia Emissions Control Technologies, Usa, Llc Heated dosing mixer

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