GB2246166A - Treatment of noxious gases in i.c. engines - Google Patents
Treatment of noxious gases in i.c. engines Download PDFInfo
- Publication number
- GB2246166A GB2246166A GB9016055A GB9016055A GB2246166A GB 2246166 A GB2246166 A GB 2246166A GB 9016055 A GB9016055 A GB 9016055A GB 9016055 A GB9016055 A GB 9016055A GB 2246166 A GB2246166 A GB 2246166A
- Authority
- GB
- United Kingdom
- Prior art keywords
- treatment
- air
- combustion engine
- internal combustion
- compounds
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/10—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding acetylene, non-waterborne hydrogen, non-airborne oxygen, or ozone
- F02M25/12—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding acetylene, non-waterborne hydrogen, non-airborne oxygen, or ozone the apparatus having means for generating such gases
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treating Waste Gases (AREA)
- Incineration Of Waste (AREA)
Abstract
An engine 14 receives air drawn over and through waste water from an anaerobic digestor 10 providing fuel gas for the engine. The engine oxidises the noxious gases from the waste water tanks 16. <IMAGE>
Description
IMPROVED METHOD AND APPARATUS FOR GAS TREATMENT
The invention relates to gas treatment and more particularly to the disposal of malodorous gases.
There are presently many treatment plants, for example, effluent tanks, abattoirs, food processing, intensive livestock slurry, organic based chemical works and rendering plants, which produce small amounts of malodorous compounds dispersed in large volumes of air. When such volumes of air are allowed to vent to the atmosphere these cause pollution which although not necessarily harmful, are an irritant due to the noxious odour produced.
It is an object of the invention to obviate or mitigate the above problems.
According to one aspect of the invention there is provided a method of disposal of noxious gases or compounds entrained in relatively large volumes of air which comprises feeding said air into the air intake of an internal combustion engine.
According to a further aspect of the invention there is provided an apparatus for the disposal of noxious gases or compounds which comprises an internal combustion engine having the air intake thereof connected to be supplied from a source of such noxious gases or compounds entrained within relatively large volumes of air.
Said source may comprise conduit connected to gas entrapment means located at or above a process plant generating noxious gases or compounds as a by-product of the process being performed by said plant.
The entrapment means may comprise a gas collection and storage means located above a treatment tank. Alternatively the entrapment means may comprise a negative pressure means located above or adjacent a treatment process area, for example a hood or air conditioning outlet.
The apparatus may be such that the fuel intake of the internal combustion engine is connected to be supplied by combustible gases derived as a by-product of a process treatment plant.
The process treatment plant may comprise an anaerobic digester.
According to yet a further aspect of the invention there is provided an effluent treatment apparatus comprising an internal combustion engine, a first treatment means producing combustible gases as a by-product thereof which are arranged to be fed to the fuel intake of the internal combustion engine and a second treatment means producing noxious gases or compounds arranged to be fed as an entrainment within relatively large volumes of air to the air intake of the internal combustion engine.
The first treatment means may comprise an anaerobic digester and the second treatment means may comprise an aeration process plant.
The foregoing and further features of the invention may be more readily understood from the following description of a preferred embodiment thereof, by way of example, with reference to the accompanying drawing which shows a block schematic representation of an effluent treatment plant.
Referring now to the drawing there is shown an anaerobic digester 10 having an input conduit 11 for introducing effluent into such digester 10. Combustible gases produced within the digester 10 as a result of the anaerobic digestion are fed via an outlet conduit 12 as the fuel input at 13 to an internal combustion engine 14. A further input 15 may be connected to the fuel inlet 13 for providing alternative fuel for the internal combustion engine 14.
The treatment apparatus also includes two aeration tanks 16. Contaminated water from the output of digester 10 passes via conduits 17 to the inputs 18 of aeration tanks 16. The aeration tanks 16 have an enclosed airspace 161, which may be provided by a lid 25 which may include an air bag (not shown),and forced air input may be provided via conduit 19. Air forced via conduit 19 into the aeration tanks 16 passes upwardly through the contaminated water 10 contained therein removing any malodorous compounds contained within the water 10, and enabling the same to be collected in gaseous form within the airspace 161. Noxious gases and compounds contained in the air in airspace 161 are fed via outlets 20 and a conduit 21 to the air input 22 of the internal combustion engine 14. A blower 23 may be provided within conduit 21 to assist passage of air to the air input 22 of combustion engine 14.The aeration tanks 16 may have additional air inlets 26 which are provided to enable the controlled input of air directly into the airspaces 161 of the tanks 16 in order to prevent collapsure of the lids 25 due to negative pressure produced thereupon by blower 23, in use. The piston 141 of combustion engine 14 is connected to drive a flywheel 24, the shaft of which can be utilised to drive, for example, an electrical generator.
The treatment apparatus shown enables the use of combustible gases produced in digester 10 to drive the internal combustion engine 14, which in turn is utilised to oxidise the noxious compounds produced from the aeration tanks 16 and furthermore generate useful power. Should an apparatus be required to merely dispose of noxious gases via the air intake of the internal combustion engine 14 primary fuel can be introduced at the inlet conduit 15 to inlet 13 of the internal combustion engine. The internal-combustion engine 14 may comprise a standard sour gas engine manufactured by Cooper Energy Services in the U.S.A. and marketed under the trade name AJAX.
In a practical system control valves (not shown) would be provided at both the fuel and air intakes 13 and 22 of the internal combustion engine 14 so as to provide proper operation of such internal combustion engine with total (approximately 99.3%) efficiency of disposal of the noxious gases, therefore eliminating the normal malodorous smell around such effluent treatment systems.
Although the embodiment merely relates to an effluent treatment apparatus the conduit 21 could be connected to a negative pressure hood located above any process producing noxious gases or to the outlets from an air conditioning arrangement around a plant producing such noxious gases and the conduit 21 connected to the air intake of a suitable internal combustion engine to provide carefully controlled oxidition of malodorous compounds contained in the air.
Combustible gases, as referred to in the body of the specification, are considered to include typical organic gases such as methane, propane or butane.
Noxious gases typically include hydrogen sulphide, skatole, mercaptans, and indoles, compounds of these, and other malodorous gaseous compounds containing sulphur and/or nitrogen.
Claims (10)
1. A method of disposal of noxious gases or compounds entrained in relatively large volumes of air which comprises feeding said air into the air intake of an internal combustion engine.
2. An apparatus for the disposal of noxious gases or compounds which comprises-an-interna1 combustion engine having the air intake thereof connected to be supplied from a source of such noxious gases or compounds entrained within relatively large volumes of air.
3. An apparatus as claimed in claim 2 wherein said source comprises conduit connected to gas entrapment means located at or above a process plant generating noxious gases or compounds as a by-product of the process being performed by said plant.
4. An apparatus as claimed in claim 3 wherein the entrapment means comprises a gas collection and storage means located above a treatment tank.
5. An apparatus as claimed in claim 3 wherein the entrapment means comprises a negative pressure means located above or adjacent a treatment process area, for example a hood or air conditioning outlet.
6. An apparatus as claimed in any one of claims 2 to 5 inclusive wherein the apparatus is such that the fuel intake of the internal combustion engine is connected to be supplied by combustible gases derived as a by-product of a process treatment plant.
7. An apparatus as claimed in claim 6 wherein the process treatment plant comprises an anaerobic digester.
8. An effluent treatment apparatus comprising an internal combustion engine, a first treatment means producing combustible gases as a by-product thereof which are arranged to be fed to the fuel intake of the internal combustion engine and a second treatment means producing noxious gases or compounds arranged to be fed as an entrainment within relatively large volume of air to the air intake of the internal combustion engine.
9. An apparatus as claimed in claim 8 wherein the first treatment means comprises an anaerobic digester and the second treatment means comprises an aeration process plant.
10. A method or apparatus for disposal of noxious gases or compounds substantially as hereinbefore described with reference to the accompanying drawing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9016055A GB2246166A (en) | 1990-07-21 | 1990-07-21 | Treatment of noxious gases in i.c. engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9016055A GB2246166A (en) | 1990-07-21 | 1990-07-21 | Treatment of noxious gases in i.c. engines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9016055D0 GB9016055D0 (en) | 1990-09-05 |
| GB2246166A true GB2246166A (en) | 1992-01-22 |
Family
ID=10679456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9016055A Withdrawn GB2246166A (en) | 1990-07-21 | 1990-07-21 | Treatment of noxious gases in i.c. engines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2246166A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115636465B (en) * | 2022-11-30 | 2023-03-31 | 中国煤炭地质总局勘查研究总院 | Internal combustion type waste water separating device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB973175A (en) * | 1962-08-03 | 1964-10-21 | Shell Int Research | A method of operating a gas engine |
| GB1109632A (en) * | 1964-08-17 | 1968-04-10 | Ici Ltd | Treatment of effluents prior to discharge to the atmosphere |
| GB1276448A (en) * | 1970-08-19 | 1972-06-01 | Standard Products Co | Waste disposal system and method |
| US4108113A (en) * | 1976-05-10 | 1978-08-22 | The Dow Chemical Company | Method for reducing concentration of harmful or offensive vapors in the atmosphere |
| WO1987003338A1 (en) * | 1985-11-25 | 1987-06-04 | Sonex Research Inc. | Method and apparatus for disposal of toxic wastes by combustion |
| US4750454A (en) * | 1984-06-15 | 1988-06-14 | Santina And Thompson, Inc. | Manure digester and power generating system |
-
1990
- 1990-07-21 GB GB9016055A patent/GB2246166A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB973175A (en) * | 1962-08-03 | 1964-10-21 | Shell Int Research | A method of operating a gas engine |
| GB1109632A (en) * | 1964-08-17 | 1968-04-10 | Ici Ltd | Treatment of effluents prior to discharge to the atmosphere |
| GB1276448A (en) * | 1970-08-19 | 1972-06-01 | Standard Products Co | Waste disposal system and method |
| US4108113A (en) * | 1976-05-10 | 1978-08-22 | The Dow Chemical Company | Method for reducing concentration of harmful or offensive vapors in the atmosphere |
| US4750454A (en) * | 1984-06-15 | 1988-06-14 | Santina And Thompson, Inc. | Manure digester and power generating system |
| WO1987003338A1 (en) * | 1985-11-25 | 1987-06-04 | Sonex Research Inc. | Method and apparatus for disposal of toxic wastes by combustion |
| US4681072A (en) * | 1985-11-25 | 1987-07-21 | Sonex Research, Inc. | Method and apparatus for disposal of toxic wastes by combustion |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9016055D0 (en) | 1990-09-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |