WO1995024959A1 - Procede et dispositif pour la depollution des processus de combustion par l'elimination totale des oxydes d'azote des gaz de combustion - Google Patents
Procede et dispositif pour la depollution des processus de combustion par l'elimination totale des oxydes d'azote des gaz de combustion Download PDFInfo
- Publication number
- WO1995024959A1 WO1995024959A1 PCT/RO1995/000001 RO9500001W WO9524959A1 WO 1995024959 A1 WO1995024959 A1 WO 1995024959A1 RO 9500001 W RO9500001 W RO 9500001W WO 9524959 A1 WO9524959 A1 WO 9524959A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- combustion
- oxygen
- air
- nitrogen
- separation
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/02—Preparation of oxygen
- C01B13/0229—Purification or separation processes
- C01B13/0248—Physical processing only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
-
- 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
- B01D53/24—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 by centrifugal force
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B5/00—Other centrifuges
- B04B5/08—Centrifuges for separating predominantly gaseous mixtures
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0043—Impurity removed
- C01B2210/0046—Nitrogen
Definitions
- This invention relates to a method and a device which ensures the cleaning of combustion processes by the total elimination of nitrogen oxides from combustion gases.
- the invention can be used for cleaning up combustion processes, anywhere combustion processes are used: internal combustion, turbine or reagent engines, thermal power plants, steelworks, thermal drilling, gasifier, cement manufacturing and lime, district thermal power stations, heating stoves in common use, etc.
- combustion gases have in their composition carbon dioxide, water vapors, nitrogen, nitrogen oxides and oxygen residues, as a result of excess air with which we work specially, of which nitrogen oxides are claimed as very harmful for the ambient environment, inclusive for the ozone layer; moreover, by the very high nitrogen content in the air (78.03% volume or 75.47% weight H ⁇ tte, p.538), the heat loss by the combustion gases is approximately 31.2% (Hutte, p. 619).
- the process for the depollution of combustion processes by the total elimination of nitrogen oxides from combustion gases eliminates the disadvantages mentioned by the fact that, instead of the natural air necessary for combustion , applies a mixture consisting of combustion gases taken from the discharge and pure oxygen taken from a separation device by ultracentrifugation, adequate homogenized, in proportion suitable for high-efficiency combustion, thereby comprising a composition of the mixture formed of up to 79.0% volume of combustion gas and 21.0 ...
- the invention offers the possibility of fuel coloring in parallel with the allocation of the oxygen necessary for total combustion, by modifying the ratio between the recirculated combustion gases to 79.0 ... 0.0% to because of the increase in the quantity of oxygen from 21.0% to 100.0%, a ratio which can be chosen as desired, the composition of the exhaust gases exhausted being, at an excess coefficient of 1.05, about 45.39% carbon dioxide, 51.06 water vapor and 3.55 oxygen.
- the device for the depollution of combustion processes by the total elimination of nitrogen oxides from combustion gases eliminates the disadvantages mentioned by that it provides the pure oxygen necessary for the production of the mixture.
- synthetic for the application of the process by the separation of the latter from the air under effective conditions and in continuous flow, by ultracentrifugation, more easily than by all the other methods already known.
- the centrifugal device in two degrees of separation consists of a sectioned carcass-stator, provided with evacuation orifices for nitrogen, for oxygen, for residual air and for air intake, rigidly mounted to the stator of the drive motor, not shown in the figure, an air intake turbine and a centrifugal separator rotor constituted by the air distributor, the surface which has the shape of a truncated cone, provided with evacuation orifices for oxygen in the first degree of separation, the part with circular slot which ensures the second phase of separation of oxygen, provided with evacuation orifices residual air and air intake in the separator, all rigidly mounted, after mounting the spacers, the whole assembly being mounted on an axis of rotation can be fixed by means of a bearing in a rigid support.
- the two circular slits by construction, can be dimensioned in such a way that the separator can allow the production of either pure oxygen on the oxygen path, or pure nitrogen on the nitrogen path .
- the separator can allow the production of either pure oxygen on the oxygen path, or pure nitrogen on the nitrogen path .
- the advantages of this invention are: the total elimination of nitrogen oxides from the combustion gases escaped into the atmosphere; the reduction of certainly of heat by the exhaust gases evacuated with approximately 23.0% due to the decrease of approximately 3.8 times in the volume of exhaust gases, in which nitrogen and its oxidation products are no longer found, which, in natural air, are in proportion of 79.0%, thus increasing the thermal efficiency of combustion; the reduction of the noise caused in the exhaust pipes as a consequence of the reduction in the flow rate of exhaust gases, by approximately 3.8 times, at the same time with the reduction of the back pressure - important - of the exhaust pipe; the increase in engine power with around 20.0% compared to the varia .
- the centrifugal device in two degrees of separation is composed of a sectioned carcass-stator 1, 2,3 and 4, provided with evacuation orifices for nitrogen 1a,, for the 'oxygen 1 b., ( and 2a ⁇ ⁇ , for residual air 3a.,, and for air suction 4a, rigidly mounted to the stator of the drive motor, not shown in the figure, a turbine air intake 5 and a centrifugal separator rotor constituted by the air distributor 6, the surface which has the frustoconical shape 7, provided with discharge openings for nitrogen 7a 1m
- the first degree of separation of oxygen and the circular slit piece 10 which provides the second phase of separation of oxygen, provided with s air evacuation orifices 10a 1 , and for admission of air into the separator 10b 1 ,, all rigidly mounted, after the spacers 1 have been mounted, the entire assembly being mounted on an axis rotation by tightening the nut.
- the device in operation draws atmospheric air through the turbine 5 which is refuted by the orifices 10b, , then dispersed by the distributor 6 towards the frustoconical surface 8 where there is a first separation of the oxygen from the nitrogen thanks to the difference in density in the ultracentrifugal field, the oxygen moving in film descending on the frustoconical surface 8 towards the first circular slot 9 ⁇ ui ensures this separation, the nitrogen continuing its path towards the exit of the device, by the evacuation orifices 7a-,, and 1a-, , and the oxygen passes into the second degree of separation through the evacuation orifices 8a, , where is repeated amplified because of the distance from the center of rotation of the second frustoconical surface 7, on which the process of separation of the last traces of nitrogen is repeated, so that by the circular slot 10 separates the pure oxygen which is evacuated by the orifices 7b-, ,, 1b- ,, and 2a 1 , separates on the outside of the device, from
- the synthetic mixture formed of carbon dioxide and water vapors both taken from the evacuated combustion gases and the oxygen discharged from the centrifugal device ensures the ratio projected to obtain a high-efficiency combustion, the residual air of the second degree of separation being discharged into the atmosphere through the discharge orifices 10a,, and 3.,,.
- the axis of rotation can be fixed by a bearing in a rigid support.
- the two circular slits 9, 10, by construction, can be dimensioned in such a way that the separator can allow the production either of pure oxygen on the oxygen path, or of pure nitrogen on the path of the nitrogen.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Combustion & Propulsion (AREA)
- Inorganic Chemistry (AREA)
- Exhaust-Gas Circulating Devices (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP95913437A EP0702591A1 (fr) | 1994-03-15 | 1995-03-14 | Procede et dispositif pour la depollution des processus de combustion par l'elimination totale des oxydes d'azote des gaz de combustion |
AU20870/95A AU2087095A (en) | 1994-03-15 | 1995-03-14 | Pollution control method and device enabling complete removal of nitrogen oxides from combustion gases in combustion processes |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RO9400420 | 1994-03-15 | ||
RO94-00420 | 1994-03-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995024959A1 true WO1995024959A1 (fr) | 1995-09-21 |
Family
ID=20100554
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/RO1995/000001 WO1995024959A1 (fr) | 1994-03-15 | 1995-03-14 | Procede et dispositif pour la depollution des processus de combustion par l'elimination totale des oxydes d'azote des gaz de combustion |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0702591A1 (fr) |
CN (1) | CN1128502A (fr) |
AU (1) | AU2087095A (fr) |
CA (1) | CA2163536A1 (fr) |
HU (1) | HU9503261D0 (fr) |
PL (1) | PL311668A1 (fr) |
WO (1) | WO1995024959A1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6908507B2 (en) | 2001-04-13 | 2005-06-21 | Co2 Solution Inc. | Process and a plant for the production of Portland cement clinker |
WO2013189871A1 (fr) | 2012-06-19 | 2013-12-27 | Shell Internationale Research Maatschappij B.V. | Appareil et procédé pour éliminer un contaminant d'un courant contaminé |
ES2618283A1 (es) * | 2015-12-18 | 2017-06-21 | Universidade Da Coruña | Separador centrífugo de CO2 de los gases de combustión |
WO2021085668A1 (fr) * | 2019-10-29 | 2021-05-06 | 한국생산기술연구원 | Appareil et procédé de fabrication de ciment avec réduction de nox par utilisation d'une analyse en temps réel, et techniques de post-traitement et de combustion à faibles émissions de nox |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3100312A1 (de) * | 1980-12-29 | 1983-02-10 | Gottfried 6486 Brachttal Bähr | Verfahren, vorrichtung und anwendung einer rotations-gasgemischtrennung nach dem prinzip der rotations-sauerstoff-anreicherung, jedoch ohne magnetischen energieinhalt, zum zweck der trennung von im molekulargewicht unterschiedlicher gase, mit aufbereitung der abgase und kreislaufeinsatz fuer die zweite komponente |
EP0237816A1 (fr) * | 1986-02-26 | 1987-09-23 | Eugen Plaksin | Dispositif pour le traitement de l'air comburant |
-
1995
- 1995-03-14 CA CA002163536A patent/CA2163536A1/fr not_active Abandoned
- 1995-03-14 HU HU9503261A patent/HU9503261D0/hu unknown
- 1995-03-14 AU AU20870/95A patent/AU2087095A/en not_active Abandoned
- 1995-03-14 CN CN95190409A patent/CN1128502A/zh active Pending
- 1995-03-14 EP EP95913437A patent/EP0702591A1/fr not_active Withdrawn
- 1995-03-14 WO PCT/RO1995/000001 patent/WO1995024959A1/fr not_active Application Discontinuation
- 1995-03-14 PL PL95311668A patent/PL311668A1/xx unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3100312A1 (de) * | 1980-12-29 | 1983-02-10 | Gottfried 6486 Brachttal Bähr | Verfahren, vorrichtung und anwendung einer rotations-gasgemischtrennung nach dem prinzip der rotations-sauerstoff-anreicherung, jedoch ohne magnetischen energieinhalt, zum zweck der trennung von im molekulargewicht unterschiedlicher gase, mit aufbereitung der abgase und kreislaufeinsatz fuer die zweite komponente |
EP0237816A1 (fr) * | 1986-02-26 | 1987-09-23 | Eugen Plaksin | Dispositif pour le traitement de l'air comburant |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6908507B2 (en) | 2001-04-13 | 2005-06-21 | Co2 Solution Inc. | Process and a plant for the production of Portland cement clinker |
WO2013189871A1 (fr) | 2012-06-19 | 2013-12-27 | Shell Internationale Research Maatschappij B.V. | Appareil et procédé pour éliminer un contaminant d'un courant contaminé |
ES2618283A1 (es) * | 2015-12-18 | 2017-06-21 | Universidade Da Coruña | Separador centrífugo de CO2 de los gases de combustión |
WO2021085668A1 (fr) * | 2019-10-29 | 2021-05-06 | 한국생산기술연구원 | Appareil et procédé de fabrication de ciment avec réduction de nox par utilisation d'une analyse en temps réel, et techniques de post-traitement et de combustion à faibles émissions de nox |
Also Published As
Publication number | Publication date |
---|---|
AU2087095A (en) | 1995-10-03 |
PL311668A1 (en) | 1996-03-04 |
EP0702591A1 (fr) | 1996-03-27 |
CN1128502A (zh) | 1996-08-07 |
CA2163536A1 (fr) | 1995-09-21 |
HU9503261D0 (en) | 1996-05-28 |
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