CA2051877A1 - Method of making and low-pollution combusting of solid fossil fuels - Google Patents
Method of making and low-pollution combusting of solid fossil fuelsInfo
- Publication number
- CA2051877A1 CA2051877A1 CA002051877A CA2051877A CA2051877A1 CA 2051877 A1 CA2051877 A1 CA 2051877A1 CA 002051877 A CA002051877 A CA 002051877A CA 2051877 A CA2051877 A CA 2051877A CA 2051877 A1 CA2051877 A1 CA 2051877A1
- Authority
- CA
- Canada
- Prior art keywords
- mixture
- fossil fuel
- solid fossil
- pollution
- low
- 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.)
- Abandoned
Links
- 239000002803 fossil fuel Substances 0.000 title claims abstract description 47
- 239000007787 solid Substances 0.000 title claims abstract description 47
- 238000004519 manufacturing process Methods 0.000 title abstract description 3
- 239000000203 mixture Substances 0.000 claims abstract description 60
- 238000006243 chemical reaction Methods 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 28
- 239000000654 additive Substances 0.000 claims abstract description 14
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 14
- 231100000719 pollutant Toxicity 0.000 claims abstract description 14
- 230000000996 additive effect Effects 0.000 claims abstract description 10
- 239000000446 fuel Substances 0.000 claims abstract description 10
- 150000001875 compounds Chemical class 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims abstract description 8
- 238000007599 discharging Methods 0.000 claims abstract description 3
- 238000003825 pressing Methods 0.000 claims description 11
- 239000008188 pellet Substances 0.000 claims description 7
- 239000004449 solid propellant Substances 0.000 description 15
- 238000002485 combustion reaction Methods 0.000 description 12
- 239000010813 municipal solid waste Substances 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000002802 bituminous coal Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- -1 e.g. Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L10/00—Use of additives to fuels or fires for particular purposes
- C10L10/02—Use of additives to fuels or fires for particular purposes for reducing smoke development
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L9/00—Treating solid fuels to improve their combustion
- C10L9/10—Treating solid fuels to improve their combustion by using additives
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/12—Inorganic compounds
- C10L1/1233—Inorganic compounds oxygen containing compounds, e.g. oxides, hydroxides, acids and salts thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Abstract of the Disclosure A method of making combustible low-pollution solid fossil fuel as well as a method of low-pollution combusting of solid fossil fuel comprises comminuting solid fossil fuel, forming a mixture by adding an amount of basic additive to the comminuted solid fossil fuel in a stoichiometric ratio greater than 1.0 relative to the solid fossil fuel for binding pollutant compounds, bringing the moisture content of the mixture to greater than 15% and holding the mixture to a temperature range between approximately 40 to 100°C for a period of time between approximately 10 to 180 minutes in a substantially closed reaction vessel, discharging the mixture from the reaction vessel and drying the mixture, and combusting the mixture at a fuel bed temperature of less than or equal to about 830°C.
Description
2 Q ~ 7 Method of Making and Low-pollution Combusting of Solid Fossil Fuels Background of the Invention The present invention relates to a method of preparing and low-pollution combusting of solid fossil fuels.
Description of the Prior Art Solid fuels are generally comminuted and dried before combustion. If solid fuels are not used at suitable pulverization fineness for dust-firing, solid fuels are comminuted, dried and pressed at high pressure to form briquettes or pellets. The pressing of solid fuels leads to considerable advantages in the handling of the solid fuels during transport and storage.
The emission behavior of the impurities contained in the solid fuel, e.g., sulfur, chlorine, fluorine and heavy metals, is only insignificantly affected ~y the pressing operation and high 20~1~77 pollution emissions of, for example, S02, HCl and HF
occuring during combustion of the pressed solid fuels.
It is known, for example from DE 3,440,593 S Al, to add basic additives to solid fuels to which waste materials are added, in order to effect a binding of the acid-forming pollutants. In this case, it is also known that the fuel bed temperature must not be unduly high, so that the binding of the pollutant is not reversed during a subsequent combustion process. It is therefore known to set the fuel bed temperature at less than 1300C and usually the fuel bed temperature is preferably set between 800 and 1000C.
DE 3,717,191 Cl discloses a process which, for low-pollution combustion of trash, provides for an addition of a basic additive to trash which has been adjusted to a predetermined moisture content of 15 to 35 percent by weight. The trash remains for at least 10 minutes in a reaction space and is then burned at a fuel bed temperature of less than 850C.
This process, however, is not intended for the combustion of pulverized solid fuels, particularly those in pressed form.
Summarv of the Invention The present invention is directed to a novel method of pressing and combusting solid fossil fuels without the generation of high levels of pollutants and represents a vast improvement and a completely novel approach for satisfying and meeting the needs, requirements and criteria for effective and useful 20~1~77 combustion of fossil fuel without the problems and disadvantages of prior art methods, particularly the generation of high levels of pollutants, in a safe and cost effective manner.
Accordingly, the present invention is directed particularly to a method of combusting solid fossil fuels accordingly, that does not produce a high level of pollution, i.e., low-pollution combustion of solid fossil fuels.
Accordingly, an object of the present invention is to provide a method of combusting solid fossil fuels without generating a high level of polluting by-products.
Another object of the present invention is to provide a method for low-pollution combustion of solid fossil fuels in an efficient and cost-effective manner.
Additional objects and advantages of the present invention will be set forth, in the description which follows, and, in part, will be obvious from the description or may be learned by practice of the invention. The objects and advantages of the invention may be learned by and attained by means of the instrumentalities and combination of steps particularly pointed out in the appended claims.
To achieve the foregoing objects and in accordance with the purpose of the present invention, as embodied and broadly described herein, a preferred method of preparing combustible low-pollution solid fossil fuel comprises communiting the solid fossil fuel, forming a mixture by adding an amount of basic additive to the communitied solid 20~1877 fossil fuel in a stoichiometric ratio greater than 1.0 relative to the solid fossil fuel for binding pollutant compounds, bringing the moisture content of the mixture to greater than 15%, holding the mixture at a temperature range between approximately 40C - 100C for a period of time between approximately 10 to 180 minutes in a substantially closed reaction space and combusting the mixture at a fuel bed temperature less than or equal to about 830C.
In another preferred embodiment of the present invention, there is disclosed a method of low-pollution combusting solid fossil fuels comprising comminuting the solid fossil fuel, forming a mixture by adding an amount of basic additive to the comminuted solid fossil fuel in a stoichiometric ratio greater than 1.0 relative to the solid fossil fuel for binding pollutant compounds, bringing the moisture content of the mixture to greater than 15~, holding the mixture to a temperature range between approximately 40 to 100C for a period of time between approximately 10 to 180 minutes in a substantially closed reaction vessel, discharging the mixture from the reaction vessel and drying the mixture and combusting the mixture at a fuel bed temperature of less than or equal to about 830C.
According to the present invention, a treatment very similar to that proposed for the combustion of trash leads to suitable pressing of solid fuels, which - as distinct from the earlier process technology - i8 adjusted to a relatively high moisture content preferably greater than 20~, 20~1877 for mixing with the ba~ic additive and ad~usted to an elevated temperature in a closed reaction space, the reaction space preferably being heated indirectly and preferably to a temperature of about 60C.
Detailed Descri~tion of the Preferred Embodiments A preferred embodiment of the present invention will now be described.
Solid fossil fuel is comminuted to an average gain size of less than 3 mm and loaded in a reaction chamber. At least one basic additive in particular form is added to the comminuted solid fossil fuel.
Basic additives includes alkaline earth compounds such as CaO3 and MgC03 as well as other compounds that will bind pollutant compounds. The amount of basic additives that is added to the solid fossil fuel particles is in a stoichiometric ratio of greater than 1.0 relation to the solid fossil fuel to ensure complete binding of pollutant compounds.
The solid fossil fuel particles and basic additives are mixed in the reaction chamber to form a mixture. The moisture content of the mixture is then made to be greater than about 15%, preferably greater than about 20%. The mixture is heated in the reaction chamber to a temperature between approximately 40 - 100C, and held for a period of time between about 10 to 180 minutes. The resulting mixture is then dried and may be used in a particular form or pressed to form briquettes or pellets.
The resulting mixture may be combusted at a fuel bed temperature of about 830C or less with low-pollution emission.
By subsequent pressing of the solid fuels, briquettes or pellets can be produced in which, as a result of the said pressing measures, the pollutants, especially acid formers, are bound to form salts having a high dissociation temperature, so that, during a combustion at a fuel bed temperature less than or equal to 830C, the bound salts remain in the combustion residue and do not dissociate to form the pollutants.
As a result of the invention, it is therefore possible for the first time to make even pressed solid fuels available which can be burned at a very low pollutant level, for example with an S02 content of less than 2%.
For carrying out the process, the moisture content of the mixture in the reaction vessel is preferably adjusted to greater than 20%. A suitable basic additive is an alkaline earth mixture, preferably CaC03 and/or MgC03, which is added to the solid fuels in a stoichiometric ratio of greater than 1Ø
As a result of the pressing, unusual for solid fuels, by setting a predetermined moisture content for the addition of the basic additive, the retention of the solid fuél in a reaction vessel for a period of preferably more than 20 minutes and subse~uent drying of the solid fuel, low-polluting combustion can be achieved even with bituminous coal or lignite of high sulfur content.
2~1877 It will be apparent to those skilled in the art that various modifications and variations can be made in the method of the present invention without departing from the scope or spirit of the invention.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. It is intended that the specification and examples be considered as exemplary only, with true scope and spirit of the invention being indicated by the following claims.
Description of the Prior Art Solid fuels are generally comminuted and dried before combustion. If solid fuels are not used at suitable pulverization fineness for dust-firing, solid fuels are comminuted, dried and pressed at high pressure to form briquettes or pellets. The pressing of solid fuels leads to considerable advantages in the handling of the solid fuels during transport and storage.
The emission behavior of the impurities contained in the solid fuel, e.g., sulfur, chlorine, fluorine and heavy metals, is only insignificantly affected ~y the pressing operation and high 20~1~77 pollution emissions of, for example, S02, HCl and HF
occuring during combustion of the pressed solid fuels.
It is known, for example from DE 3,440,593 S Al, to add basic additives to solid fuels to which waste materials are added, in order to effect a binding of the acid-forming pollutants. In this case, it is also known that the fuel bed temperature must not be unduly high, so that the binding of the pollutant is not reversed during a subsequent combustion process. It is therefore known to set the fuel bed temperature at less than 1300C and usually the fuel bed temperature is preferably set between 800 and 1000C.
DE 3,717,191 Cl discloses a process which, for low-pollution combustion of trash, provides for an addition of a basic additive to trash which has been adjusted to a predetermined moisture content of 15 to 35 percent by weight. The trash remains for at least 10 minutes in a reaction space and is then burned at a fuel bed temperature of less than 850C.
This process, however, is not intended for the combustion of pulverized solid fuels, particularly those in pressed form.
Summarv of the Invention The present invention is directed to a novel method of pressing and combusting solid fossil fuels without the generation of high levels of pollutants and represents a vast improvement and a completely novel approach for satisfying and meeting the needs, requirements and criteria for effective and useful 20~1~77 combustion of fossil fuel without the problems and disadvantages of prior art methods, particularly the generation of high levels of pollutants, in a safe and cost effective manner.
Accordingly, the present invention is directed particularly to a method of combusting solid fossil fuels accordingly, that does not produce a high level of pollution, i.e., low-pollution combustion of solid fossil fuels.
Accordingly, an object of the present invention is to provide a method of combusting solid fossil fuels without generating a high level of polluting by-products.
Another object of the present invention is to provide a method for low-pollution combustion of solid fossil fuels in an efficient and cost-effective manner.
Additional objects and advantages of the present invention will be set forth, in the description which follows, and, in part, will be obvious from the description or may be learned by practice of the invention. The objects and advantages of the invention may be learned by and attained by means of the instrumentalities and combination of steps particularly pointed out in the appended claims.
To achieve the foregoing objects and in accordance with the purpose of the present invention, as embodied and broadly described herein, a preferred method of preparing combustible low-pollution solid fossil fuel comprises communiting the solid fossil fuel, forming a mixture by adding an amount of basic additive to the communitied solid 20~1877 fossil fuel in a stoichiometric ratio greater than 1.0 relative to the solid fossil fuel for binding pollutant compounds, bringing the moisture content of the mixture to greater than 15%, holding the mixture at a temperature range between approximately 40C - 100C for a period of time between approximately 10 to 180 minutes in a substantially closed reaction space and combusting the mixture at a fuel bed temperature less than or equal to about 830C.
In another preferred embodiment of the present invention, there is disclosed a method of low-pollution combusting solid fossil fuels comprising comminuting the solid fossil fuel, forming a mixture by adding an amount of basic additive to the comminuted solid fossil fuel in a stoichiometric ratio greater than 1.0 relative to the solid fossil fuel for binding pollutant compounds, bringing the moisture content of the mixture to greater than 15~, holding the mixture to a temperature range between approximately 40 to 100C for a period of time between approximately 10 to 180 minutes in a substantially closed reaction vessel, discharging the mixture from the reaction vessel and drying the mixture and combusting the mixture at a fuel bed temperature of less than or equal to about 830C.
According to the present invention, a treatment very similar to that proposed for the combustion of trash leads to suitable pressing of solid fuels, which - as distinct from the earlier process technology - i8 adjusted to a relatively high moisture content preferably greater than 20~, 20~1877 for mixing with the ba~ic additive and ad~usted to an elevated temperature in a closed reaction space, the reaction space preferably being heated indirectly and preferably to a temperature of about 60C.
Detailed Descri~tion of the Preferred Embodiments A preferred embodiment of the present invention will now be described.
Solid fossil fuel is comminuted to an average gain size of less than 3 mm and loaded in a reaction chamber. At least one basic additive in particular form is added to the comminuted solid fossil fuel.
Basic additives includes alkaline earth compounds such as CaO3 and MgC03 as well as other compounds that will bind pollutant compounds. The amount of basic additives that is added to the solid fossil fuel particles is in a stoichiometric ratio of greater than 1.0 relation to the solid fossil fuel to ensure complete binding of pollutant compounds.
The solid fossil fuel particles and basic additives are mixed in the reaction chamber to form a mixture. The moisture content of the mixture is then made to be greater than about 15%, preferably greater than about 20%. The mixture is heated in the reaction chamber to a temperature between approximately 40 - 100C, and held for a period of time between about 10 to 180 minutes. The resulting mixture is then dried and may be used in a particular form or pressed to form briquettes or pellets.
The resulting mixture may be combusted at a fuel bed temperature of about 830C or less with low-pollution emission.
By subsequent pressing of the solid fuels, briquettes or pellets can be produced in which, as a result of the said pressing measures, the pollutants, especially acid formers, are bound to form salts having a high dissociation temperature, so that, during a combustion at a fuel bed temperature less than or equal to 830C, the bound salts remain in the combustion residue and do not dissociate to form the pollutants.
As a result of the invention, it is therefore possible for the first time to make even pressed solid fuels available which can be burned at a very low pollutant level, for example with an S02 content of less than 2%.
For carrying out the process, the moisture content of the mixture in the reaction vessel is preferably adjusted to greater than 20%. A suitable basic additive is an alkaline earth mixture, preferably CaC03 and/or MgC03, which is added to the solid fuels in a stoichiometric ratio of greater than 1Ø
As a result of the pressing, unusual for solid fuels, by setting a predetermined moisture content for the addition of the basic additive, the retention of the solid fuél in a reaction vessel for a period of preferably more than 20 minutes and subse~uent drying of the solid fuel, low-polluting combustion can be achieved even with bituminous coal or lignite of high sulfur content.
2~1877 It will be apparent to those skilled in the art that various modifications and variations can be made in the method of the present invention without departing from the scope or spirit of the invention.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. It is intended that the specification and examples be considered as exemplary only, with true scope and spirit of the invention being indicated by the following claims.
Claims (14)
1. A method of preparing combustible low-pollution solid fossil fuel comprising:
comminuting solid fossil fuel;
forming a mixture by adding an amount of basic additive to the comminuted solid fossil fuel in a stoichiometric ratio greater than 1.0 relative to the solid fossil fuel for binding pollutant compounds;
bringing the moisture content of the mixture to greater than 15%; and holding the mixture to a temperature range between approximately 40 to 100°C for a period of time between approximately 10 to 180 minutes in a substantially closed reaction vessel.
comminuting solid fossil fuel;
forming a mixture by adding an amount of basic additive to the comminuted solid fossil fuel in a stoichiometric ratio greater than 1.0 relative to the solid fossil fuel for binding pollutant compounds;
bringing the moisture content of the mixture to greater than 15%; and holding the mixture to a temperature range between approximately 40 to 100°C for a period of time between approximately 10 to 180 minutes in a substantially closed reaction vessel.
2. A method of preparing combustible low-pollution solid fossil fuel according to claim 1, wherein the mixture is held for a period of time between approximately 20 to 120 minutes.
3. A method of preparing combustible low-pollution solid fossil fuel according to claim 1, wherein the moisture content of the mixture is greater than or equal to about 20%.
4. A method of preparing combustible low-pollution solid fossil fuel according to claim 1, wherein the mixture is held at a temperature of about 60°C.
5. A method of preparing combustible low-pollution solid fossil fuel according to claim 1, further comprising removing the mixture from the reaction chamber after holding the mixture for a period of time in the reaction chamber, and thereafter drying the mixture.
6. A method of preparing combustible low-pollution solid fossil fuel according to claim 1, further comprising pressing the mixture to form briquettes or pellets after holding the mixture for a period of time in the reaction chamber and removing the mixture from the reaction chamber.
7. A method of preparing combustible low-pollution solid fossil fuel according to claim 5, further comprising pressing the mixture to form briquettes or pellets after holding the mixture for a period of time in the reaction chamber and removing the mixture from the reaction chamber and drying the mixture.
8. A method of low-pollution combusting solid fossil fuels comprising:
comminuting solid fossil fuel;
forming a mixture by adding an amount of basic additive to the comminuted solid fossil fuel in a stoichiometric ratio greater than 1.0 relative to the solid fossil fuel for binding pollutant compounds;
bringing the moisture content of the mixture to greater than 15%; and holding the mixture to a temperature range between approximately 40 to 100°C for a period of time between approximately 10 to 180 minutes in a substantially closed reaction vessel;
discharging the mixture from the reaction vessel and drying the mixture; and combusting the mixture at a fuel bed temperature of less than or equal to about 830°C.
comminuting solid fossil fuel;
forming a mixture by adding an amount of basic additive to the comminuted solid fossil fuel in a stoichiometric ratio greater than 1.0 relative to the solid fossil fuel for binding pollutant compounds;
bringing the moisture content of the mixture to greater than 15%; and holding the mixture to a temperature range between approximately 40 to 100°C for a period of time between approximately 10 to 180 minutes in a substantially closed reaction vessel;
discharging the mixture from the reaction vessel and drying the mixture; and combusting the mixture at a fuel bed temperature of less than or equal to about 830°C.
9. A method of low-pollution combusting solid fossil fuel according to claim 8, wherein the mixture is held for a period of time between approximately 20 to 120 minutes.
10. A method of low-pollution combusting solid fossil fuel according to claim 8, wherein the moisture content of the mixture is greater than or equal to about 20%.
11. A method of low-pollution combusting solid fossil fuel according to claim 8, wherein the mixture is held at a temperature of about 60°C.
12. A method of low-pollution combusting solid fossil fuel according to claim 8, further comprising removing the mixture from the reaction chamber after holding the mixture for a period of time in the reaction chamber, and thereafter drying the mixture.
13. A method of low-pollution combusting solid fossil fuel according to claim 8, further comprising pressing the mixture to form briquettes or pellets after holding the mixture for a period of time in the reaction chamber and removing the mixture from the reaction chamber but before combusting the mixture.
14. A method of low-pollution combusting solid fossil fuel according to claim 12, further comprising pressing the mixture to form briquettes or pellets after holding the mixture for a period of time in the reaction chamber and removing the mixture from the reaction chamber and drying the mixture but before combusting the mixture.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP4030645.3 | 1990-09-25 | ||
| DE4030645A DE4030645C1 (en) | 1990-09-25 | 1990-09-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2051877A1 true CA2051877A1 (en) | 1992-03-26 |
Family
ID=6415132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002051877A Abandoned CA2051877A1 (en) | 1990-09-25 | 1991-09-19 | Method of making and low-pollution combusting of solid fossil fuels |
Country Status (18)
| Country | Link |
|---|---|
| EP (1) | EP0477496A1 (en) |
| JP (1) | JPH04234493A (en) |
| KR (1) | KR920006681A (en) |
| CN (1) | CN1060307A (en) |
| AU (1) | AU8371091A (en) |
| BR (1) | BR9104089A (en) |
| CA (1) | CA2051877A1 (en) |
| CS (1) | CS245991A3 (en) |
| DE (1) | DE4030645C1 (en) |
| HU (1) | HUT58890A (en) |
| IL (1) | IL99556A0 (en) |
| MA (1) | MA22291A1 (en) |
| MX (1) | MX9100870A (en) |
| NO (1) | NO912939L (en) |
| NZ (1) | NZ239553A (en) |
| PL (1) | PL291344A1 (en) |
| PT (1) | PT98560A (en) |
| ZA (1) | ZA916855B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016040364A (en) * | 2014-08-11 | 2016-03-24 | 三菱重工業株式会社 | Modified coal manufacturing facility and method |
| DE102016115700A1 (en) * | 2016-08-24 | 2018-03-01 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Process for refining solid fossil fuels by means of a pyrolysis reactor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4522626A (en) * | 1980-06-26 | 1985-06-11 | Mobil Oil Corporation | Process for treating high-sulfur caking coals to inactivate the sulfur and eliminate caking tendencies thereof |
| EP0109098B1 (en) * | 1982-08-21 | 1988-04-20 | Rolf W. Lindemann | Bonding of noxious products in the production of briquettes from organic material or refuse and the catalytic reforming of their pyrolysis products |
| DE3325570A1 (en) * | 1983-07-15 | 1985-01-24 | Wolf-Rüdiger 4130 Moers Naß | Process and equipment for desulphurising substances containing solids |
| DE3440593A1 (en) * | 1984-11-07 | 1986-05-15 | Gesellschaft zur Erzeugung und zum Vertrieb umweltfreundlicher Festbrennstoffe aus Biomasse und Abfällen mbH, 2800 Bremen | Process for the combustion of briquetted fuel elements of waste products containing organic components |
| DE3717191C1 (en) * | 1987-05-22 | 1988-08-25 | Energie Versorgungssyst Evs | Process for immobilising halogens on solids during the combustion of fossil fuels, refuse or the like |
-
1990
- 1990-09-25 DE DE4030645A patent/DE4030645C1/de not_active Expired - Fee Related
-
1991
- 1991-07-24 EP EP91112392A patent/EP0477496A1/en not_active Withdrawn
- 1991-07-29 NO NO91912939A patent/NO912939L/en unknown
- 1991-07-29 HU HU912528A patent/HUT58890A/en unknown
- 1991-08-02 PT PT98560A patent/PT98560A/en not_active Application Discontinuation
- 1991-08-06 PL PL29134491A patent/PL291344A1/en unknown
- 1991-08-08 CS CS912459A patent/CS245991A3/en unknown
- 1991-08-08 JP JP3199200A patent/JPH04234493A/en active Pending
- 1991-08-27 NZ NZ239553A patent/NZ239553A/en unknown
- 1991-08-29 MX MX9100870A patent/MX9100870A/en unknown
- 1991-08-29 ZA ZA916855A patent/ZA916855B/en unknown
- 1991-08-31 CN CN91108604A patent/CN1060307A/en active Pending
- 1991-09-06 AU AU83710/91A patent/AU8371091A/en not_active Abandoned
- 1991-09-19 CA CA002051877A patent/CA2051877A1/en not_active Abandoned
- 1991-09-20 KR KR1019910016500A patent/KR920006681A/en not_active IP Right Cessation
- 1991-09-24 MA MA22574A patent/MA22291A1/en unknown
- 1991-09-24 BR BR919104089A patent/BR9104089A/en unknown
- 1991-09-25 IL IL99556A patent/IL99556A0/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| HU912528D0 (en) | 1992-01-28 |
| MA22291A1 (en) | 1992-04-01 |
| IL99556A0 (en) | 1992-08-18 |
| HUT58890A (en) | 1992-03-30 |
| BR9104089A (en) | 1992-03-31 |
| AU8371091A (en) | 1992-04-02 |
| KR920006681A (en) | 1992-04-28 |
| NO912939D0 (en) | 1991-07-29 |
| NZ239553A (en) | 1992-11-25 |
| PT98560A (en) | 1992-06-30 |
| EP0477496A1 (en) | 1992-04-01 |
| CN1060307A (en) | 1992-04-15 |
| CS245991A3 (en) | 1992-05-13 |
| DE4030645C1 (en) | 1992-01-02 |
| PL291344A1 (en) | 1992-04-06 |
| ZA916855B (en) | 1992-12-30 |
| NO912939L (en) | 1992-03-26 |
| MX9100870A (en) | 1993-02-01 |
| JPH04234493A (en) | 1992-08-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |