EP3807219A1 - Vorrichtung und verfahren zur entschwefelung von erdgas - Google Patents
Vorrichtung und verfahren zur entschwefelung von erdgasInfo
- Publication number
- EP3807219A1 EP3807219A1 EP19730723.4A EP19730723A EP3807219A1 EP 3807219 A1 EP3807219 A1 EP 3807219A1 EP 19730723 A EP19730723 A EP 19730723A EP 3807219 A1 EP3807219 A1 EP 3807219A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas
- gypsum
- combustion
- steam
- acid gas
- 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.)
- Pending
Links
Classifications
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- 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 OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
- C10L3/101—Removal of contaminants
- C10L3/102—Removal of contaminants of acid contaminants
- C10L3/103—Sulfur containing contaminants
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- 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
- B01D53/14—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 absorption
- B01D53/1456—Removing acid components
- B01D53/1462—Removing mixtures of hydrogen sulfide and carbon dioxide
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- 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
- B01D53/14—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 absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
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- 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
- B01D53/343—Heat recovery
-
- 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
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
-
- 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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/80—Semi-solid phase processes, i.e. by using slurries
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/02—Preparation of sulfur; Purification
- C01B17/04—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides
- C01B17/0404—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by processes comprising a dry catalytic conversion of hydrogen sulfide-containing gases, e.g. the Claus process
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/46—Sulfates
- C01F11/464—Sulfates of Ca from gases containing sulfur oxides
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/20—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products
- F02C3/30—Adding water, steam or other fluids for influencing combustion, e.g. to obtain cleaner exhaust gases
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/604—Hydroxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/20—Organic absorbents
- B01D2252/204—Amines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2256/00—Main component in the product gas stream after treatment
- B01D2256/24—Hydrocarbons
- B01D2256/245—Methane
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/302—Sulfur oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/304—Hydrogen sulfide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/50—Carbon oxides
- B01D2257/504—Carbon dioxide
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- 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 OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/54—Specific separation steps for separating fractions, components or impurities during preparation or upgrading of a fuel
- C10L2290/541—Absorption of impurities during preparation or upgrading of a fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/30—Application in turbines
- F05D2220/31—Application in turbines in steam turbines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/30—Application in turbines
- F05D2220/32—Application in turbines in gas turbines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/70—Application in combination with
- F05D2220/76—Application in combination with an electrical generator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/01—Purpose of the control system
- F05D2270/08—Purpose of the control system to produce clean exhaust gases
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2
Definitions
- the invention relates to a device and a method for the desulfurization of natural gas.
- natural gas After being extracted as natural gas, natural gas must first be processed before it can be transported over long distances using pipelines, for example, and finally used to generate energy for the consumer.
- Natural gas as raw gas after its production contains hydrogen sulfide and is therefore also referred to as sour gas or "sour gas".
- a central step in the treatment of natural gas is desulfurization by removing the hydrogen sulfide from the "sour gas”, for example by means of amine washing. While the natural gas stream, which has been cleaned of sulfur, is fed to a further treatment, the exhaust gas stream containing hydrogen sulfide, which is referred to as "acid gas”, is fed to a sulfur recovery, for example after the Claus
- Sulfur recovery provides elemental sulfur as a raw material.
- the present invention is based on the object of specifying a device and a method which reduces the amount of sulfur which arises during the desulfurization of natural gas and which, in addition or as an alternative to elemental sulfur, produces further products.
- the invention provides a device for the desulfurization of natural gas, comprising
- a gas line system for supplying “acid gas” from the desulfurization plant to the plant for the production of elemental sulfur and to the device for generating electricity and gypsum and for supplying “tail gas” from the plant for the production of elemental sulfur to the device to generate electricity and plaster,
- the gas line system having a gas distributor device which, in a first position, supplies "acid gas” exclusively to the plant for the production of elemental sulfur, in a second position "acid gas” exclusively supplies the device for generating electricity and gypsum, and in a distribution position supplies a first part of the "acid gas” to the plant for the extraction of elemental sulfur and a second part of the "acid gas” to the device for generating electricity and gypsum.
- the device for generating electricity and plaster comprises: cl) a power generation device comprising a combustion device for the combustion of “tail gas” or “acid gas” or a mixture of “tail gas” and “acid gas”, the energy released during the combustion being used at least in part to generate electricity , and
- the desulfurization plant desulphurises the natural gas, for example, by amine scrubbing.
- the plant for the extraction of elemental sulfur from "acid gas" in the desulfurization plant worked, for example, with a Claus process.
- the gas distributor device can be designed in such a way that it adjusts the amount of the "acid gas” that is supplied as the first part of the “acid gas” to the plant for the extraction of elemental sulfur and the amount of the "acid gas” ", which is supplied as the second part of the” acid gas "to the device for generating electricity and gypsum.
- the ratio between the first part and the second part of the “acid gas” can be adjusted in the distributor position by means of the gas distributor device.
- the advantages of the invention are, in particular, that the sulfur oxide content in the cleaned exhaust gas after the flue gas desulfurization is further reduced by the upstream combination of a process for obtaining elemental sulfur and a process for generating electricity by means of gas combustion, and is therefore lower than in the tail Is gas.
- the two sub-processes of sulfur production and combustion for power generation can be operated by setting the mixing ratio between tail gas and second part of acid gas, each under optimized conditions, in particular with a preferred proportion of hydrogen sulfide.
- Another advantage is that the Gases containing hydrogen no longer escape unused, but that they are used for energy by using them to generate electricity.
- Another important advantage is that the amount of elemental sulfur produced is reduced, since sulfur is now also stored in the form of gypsum. Compared to elemental sulfur, there is a high need for gypsum for a wide variety of gypsum products.
- the combustion temperature in the combustion device is preferably at least 1,000 ° C. This has the advantage that, at such high combustion temperatures, harmful accompanying substances such as carbon monoxide, benzene and other sulfur compounds burn completely to carbon dioxide, sulfur oxide and water and thus no longer occur or at least only occur significantly in the combustion exhaust gas.
- the combustion device of the power generation device comprises a steam generator or is a steam generator which is part of the thermodynamic cycle of a steam power process, which in turn comprises a steam turbine connected downstream of the steam generator and a condenser connected downstream of the steam turbine.
- a generator driven by the steam turbine is provided to generate electricity.
- the energy released during the combustion in the combustion device is at least partially used to generate electricity in that the energy released is first used at least partially in the steam generator for steam generation and the steam generated is then at least partially fed to the steam turbine, which generates the generator to generate electricity drives.
- the steam is at least partially branched off and supplied for thermal use, for example for heating or heating purposes.
- the power generation device can also comprise a gas turbine and / or a gas engine. In this case, a generator driven by the gas turbine and / or the gas engine is provided to generate electricity.
- a further development of the invention provides:
- a measuring device for determining the composition and / or the calorific value of the gas before combustion in the combustion device (“tail gas” or “acid gas” or mixture of “tail gas” and “acid gas”),
- an evaluation device for comparing the determined composition with a predetermined composition or a predetermined composition range and / or for comparing the determined heating value with a predetermined heating value or a predetermined heating range
- control device determining an additional proportion of natural gas required for correction in the event of a deviation from the specified composition or range of composition and / or from the specified calorific value or the specified calorific value range determined by the evaluation device and mixed with the gas before combustion via the feed device.
- the specified composition or the specified composition range can have the following proportions in mole percent provide:
- Hydrogen sulfide 3% to 70%, in particular 40% to 60%, preferably about 50%, and / or
- Carbon dioxide 10% to 90%, especially 40% to 60%, preferably about 50%.
- the specified calorific value or the specified calorific value range can be from 9 to 30 MJ / m 3 (in standard conditions), in particular from 15 to 25 MJ / m 3 (in standard conditions), preferably at about 20 MJ / m 3 ( in standard conditions).
- a multi-stage flue gas desulfurization system preferably a multi-stage flue gas desulfurization system comprising a fixed bed reactor for sulfur trioxide separation and lime scrubbing ( Wet scrubbing) for sulfur dioxide separation.
- sulfur trioxide can be separated off in a fixed bed reactor in one process stage, preferably in a first process stage.
- sulfur dioxide can be separated in the wet wash.
- Limestone can be used in the fixed bed reactor, for example with a grain size of 4/6 mm.
- Limestone powder can be used for wet washing, for example with the following grain size: 90% below 0.063 mm.
- a major advantage of this multi-stage flue gas desulfurization system is the separation of sulfur trioxide.
- the sulfur trioxide would pass through a pure wet wash almost unchanged, i.e. without the fixed bed reactor in one of the process stages, the sulfur trioxide would reach the chimney and form aerosol mist at the chimney outlet.
- the proportion of sulfur trioxide is relatively high, and accordingly a multi-stage flue gas desulfurization system with a fixed bed reactor for separating sulfur trioxide is of particular importance here.
- the device for generating electricity and gypsum comprises a gypsum plant which uses the gypsum formed during the flue gas desulfurization for the production of gypsum products, for example in the production of gypsum plasterboards and / or ready-mixed gypsum.
- the aforementioned gypsum plant can be set up in such a way that it covers all or part of its electrical energy requirements from the power generation device.
- the gypsum plant can also be set up in such a way that it takes all or part of its heat from the combustion gases that are produced during the combustion of the gases in the combustion device and / or from the power generation processes, in particular the thermodynamic cycle of the steam power process. If it is intended to take all or part of the heat requirement from the steam power process, this can be done by supplying steam directly to the gypsum plant via a branch for heating or heating purposes.
- the steam can be used to heat the drying and / or calcining devices of the gypsum plant.
- a major advantage of this is that it can prevent the gypsum plant from releasing carbon dioxide into the environment.
- the method according to the invention for the desulfurization of natural gas uses the device according to the invention and comprises the following steps: a) provision of natural gas in the form of "hydrogen gas" containing hydrogen sulfide;
- tail gas or “acid gas” or a mixture of “tail gas” and “acid gas” is fed to the combustion device of the power generation device and burned there, the energy released during the combustion being at least partially used to generate electricity is used
- the combustion in step dl) is preferably carried out at a combustion temperature of at least 1,000 ° C.
- the combustion device of the power generation device comprises a steam generator or is a steam generator which is part of the thermodynamic cycle of a steam power process, which in turn comprises a steam turbine connected downstream of the steam generator and a condenser connected downstream of the steam turbine.
- the method can provide that the energy released during combustion is at least partially used to generate electricity, that the energy released is first used at least partially in the steam generator for steam generation and the steam generated is then at least partially fed to the steam turbine, which drives a generator to generate electricity.
- the steam is at least partially branched off and used for thermal purposes, for example for heating or heating purposes.
- the method can also provide that the power is generated by a generator driven by the gas turbine and / or the gas engine.
- a further development of the method provides that the composition and / or the calorific value of the gas (“tail gas” or “acid gas” or mixture of “tail gas” and “acid gas”) supplied to the power generation device according to step dl) before the combustion is determined, for example measured, in the combustion device.
- the determined composition is compared with a predetermined composition or a predetermined composition range and / or the determined calorific value with a predetermined calorific value or a predetermined calorific range. If there is a deviation from the specified composition or composition range and / or from the specified calorific value or the specified calorific value range, an additional proportion of natural gas required for correction is determined and added to the gas before combustion.
- the specified composition or the specified composition range can provide the following proportions in mole percent:
- Hydrogen sulfide 3% to 70%, in particular 40% to 70%, preferably about 50%, and / or
- Carbon dioxide 10% to 90%, especially 40% to 60%, preferably about 50%.
- the specified calorific value or the specified calorific value range can be from 9 to 30 MJ / m 3 (in standard conditions), in particular from 15 to 25 MJ / m 3 (in standard conditions), preferably at about 20 MJ / m 3 ( in standard conditions).
- the combustion exhaust gases have a very high sulfur oxide content (in particular sulfur dioxide and sulfur trioxide content) in comparison to conventional combustion exhaust gases, it may be expedient to provide a multi-stage flue gas desulfurization, preferably a multi-stage flue gas desulfurization comprising a fixed bed reactor for sulfur trioxide separation and a lime scrubbing (wet scrubbing) for sulfur dioxide separation.
- a multi-stage flue gas desulfurization comprising a fixed bed reactor for sulfur trioxide separation and a lime scrubbing (wet scrubbing) for sulfur dioxide separation.
- a further development of the method provides that the gypsum formed during the flue gas desulfurization is fed to a gypsum plant for the production of gypsum products, in particular gypsum plasterboards and / or ready-mixed gypsum.
- the aforementioned gypsum plant can meet all or part of its electrical energy requirements from the power generation in step dl).
- the gypsum plant can also meet all or part of its heat requirements from the combustion gases generated during the combustion in step dl) and / or the power generation processes, in particular the thermodynamic process. Named cycle of the steam power process.
- this can be done by branching off steam and supplying it to the gypsum plant for heating or heating purposes.
- the steam can be used to heat the drying and / or calcining devices of the gypsum plant.
- a major advantage of this is that carbon dioxide emissions from the gypsum plant to the environment can be avoided in this way.
- FIG. 2 shows a first embodiment of the device for generating
- FIG. 3 shows a second embodiment of the device for generating electricity and plaster
- FIG. 4 shows a third embodiment of the device for generating electricity and plaster.
- the device 100 comprises a desulfurization system 102, which dered natural gas (raw gas) in the form of "Sour Gas” 101 containing hydrogen sulfide. For example, amine scrubbing takes place in the desulfurization plant 102.
- desulfurization of the "Sour Gas” 101 in the desulfurization plant 102 desulfurized natural gas 103 on the one hand and a hydrogen sulfide containing on the other hand “Acid gas” 104 is formed.
- the desulfurized natural gas 103 can, if appropriate after further treatment steps, be supplied to consumers.
- the device 100 further comprises a plant 106 for the extraction of elemental sulfur 107, for example a Claus plant for executing a Claus process.
- a plant 106 for the extraction of elemental sulfur 107, for example a Claus plant for executing a Claus process.
- this system 106 can be supplied with “acid gas” 104 from the desulfurization system 102.
- a tail gas containing hydrogen sulfide is 108 formed.
- a device 1 for generating electricity 24 and gypsum 21 is provided as a further component of the device 100.
- "Tail gas” 108 or “acid gas” 104 or a mixture of “acid gas” 104 and “tail gas” 108 can be fed to this device 1 via the gas line system 105.
- the device 1 comprises a power generation device 4 comprising a combustion device 6 for the combustion of the supplied gas, the energy released during the combustion being used at least in part for power generation.
- the device 1 further comprises a flue gas desulfurization system 19 for desulfurization of the sulfur-oxide-containing combustion exhaust gas 18 formed during the combustion, with the formation of gypsum 21.
- the gas line system 105 already mentioned is used both to supply “acid gas” 104 from the desulfurization system 102 to the system 106 for extracting elemental sulfur 107 and to the device 1 for generating electricity 24 and gypsum 21 and also for supplying it of "tail gas” 108 from the system 106 for the extraction of elemental sulfur 107 to the device 1 for generating electricity 24 and gypsum 21.
- the gas line system 105 has a gas distributor device 109 which, in a first position, "acid gas” excluding the system 106 for the production of elemental sulfur 107, in a second position “acid gas” exclusively supplies the device 1 for generating electricity 24 and gypsum 21, and in a distributor position a first part of the “acid gas” 104 in the plant 106 for the production of elemental sulfur 107 and a second part of the "acid gas” 104 of the device 1 for generating electricity 24 and gypsum 21.
- the ratio between the first part and the second part of the "acid gas” 104 can be determined in the distribution by means of the Gas distribution device 109 can be set.
- FIGS. 2 to 4 show three different exemplary embodiments of the device 1 for generating electricity and gypsum and thus also illustrate the method for producing electricity and gypsum.
- each gas can be supplied to the device 1, and thus to the process for generating electricity and gypsum, by itself or a mixture of “tail gas” 108 and “acid gas” 104.
- the gas is fed to a power generation device 4 and burned there, preferably with the addition of air 5, the energy released during the combustion being used at least partially to generate electricity.
- the gas is passed through a gas mixing device 17 before being fed to the power generating device 4, the gas mixing device 17 providing the gas, the composition of which corresponds to a predetermined composition or within a predetermined composition range and / or its
- the calorific value corresponds to a predetermined calorific value or lies within a predetermined calorific value range. Examples of this predefined composition or composition bandwidth and this predefined calorific value or the calorific value range have already been given above in the general description.
- Such a gas mixing device 17 is not absolutely necessary to implement the invention.
- the gas mixing device 17 comprises a measuring device 12, with which the composition and / or the calorific value of the incoming hydrogen sulfide-containing gases 3 (“tail gas” 108 or “acid gas” 104 or a mixture of “tail gas” 108 and “acid” Gas "104) is determined.
- the gas mixing device 17 further comprises an evaluation device 13, which compares the determined composition with the specified composition or the specified composition range or the determined calorific value with a specified calorific value or a specified calorific value range.
- the gas mixing device 17 comprises a control device 14 and a feed device 15 for natural gas.
- the control device 14 determines an additional proportion of natural gas required for correction, and acts in this way with the supply device 15 together that the determined proportion of natural gas required for the correction is mixed into the gas 3 as an admixing gas 16 before the combustion via the feed device 15.
- the control device adjusts the mixing ratio between “tail gas” 108 and second part 109 of the “acid gas” for correction, for example via the gas distributor device 109.
- the power generation device 4 in the exemplary embodiment according to FIG. 2 comprises a thermodynamic circuit 11 of a steam power process.
- the power generating device 4 comprises as a combustion system 6 a steam generator to which the gas 3 is supplied.
- the hydrogen sulfide-containing gases 3 are burned with the addition of air 5, preferably at a combustion temperature of at least 1,000 ° C.
- the energy released is at least partially used in the steam generator to generate steam.
- the power generation device 4 further comprises a steam turbine 7, which is connected downstream of the steam generator.
- the steam turbine 7 is supplied with the steam 10 generated by the steam generator.
- the steam turbine 7 is in turn coupled to a generator 8 which is driven by the steam turbine 7 to generate electricity 24.
- the electricity 24 generated can be fed into a public power grid 25 and / or made available to electrical consumers.
- the power generation device 4 comprises a capacitor 9 which is connected downstream of the steam turbine 7, i.e. after flowing through the steam turbine 7, the steam 10 is fed to the condenser 9.
- This is preferably an air-cooled condenser 9.
- thermodynamic circuit 11 of the steam power process is thus closed.
- thermodynamic circuit 11 it is also possible to interrupt the thermodynamic circuit 11 and to use the thermal energy still contained in the steam after flowing through the steam turbine 7 in a different manner, for example for heating purposes in the frame, according to the principle of classic cogeneration of local or district heating facilities.
- the thermodynamic circuit 11 of the steam power process must supply device 4 to compensate in front of the steam generator water, ie there is no longer a cycle process in the actual sense.
- combustion gases 18 are produced. These are fed to a flue gas desulfurization system 19, cleaned there and then released as cleaned exhaust gas 20, for example directly to the environment
- further exhaust gas purification steps can also be connected downstream or upstream.
- a flue gas desulfurization system 19 suitable for this must be provided, for example a multi-stage flue gas desulfurization system, preferably a multi-stage flue gas desulfurization system comprising a fixed bed reactor for sulfur trioxide separation and a lime scrubber for sulfur dioxide separation.
- the water required for flue gas desulfurization can be taken from the sea by means of sea water pumps at a location of the device near the sea. After the flue gas desulfurization system 19, the cleaned exhaust gas 20 can be released into the environment.
- gypsum 21 is produced, which is fed to a gypsum plant 22 for the production of gypsum products 23.
- gypsum plants 22 for the production of gypsum products 23.
- 22 gypsum plasterboards or ready-made gypsum mixtures are produced in this gypsum plant using the gypsum 21.
- the gypsum plant 22 is designed and set up in such a way that it covers all or part of its electrical energy requirements from the electricity generated by the power generation device 4, ie it provides the gypsum plant 22 represents one of the aforementioned electrical consumers, to which the power generation device 4 makes available the power 24 generated from the combustion of the exhaust gas containing hydrogen sulfide. Furthermore, the gypsum plant 22 completely or partially covers its heat requirement by branching steam 26 from the thermodynamic circuit 11 of the steam power process of the power generation device 4 described above and extracting heat energy from the branched steam 26 for heating and / or heating purposes. For example, the branched steam 26 can be used in this way for calcining the gypsum 21 and / or for drying gypsum plasterboards in the gypsum plant 22.
- the branched steam 26 can be released or used in some other way. In this case, water must be supplied to the thermodynamic circuit 11 of the steam power process of the power generating device 4 to compensate. Or the branched-off steam 26 is returned to the thermodynamic circuit 11 of the steam power process of the power generation device 4 after the thermal use, so that this circuit is still essentially closed with regard to the steam.
- the continuation of the branched steam 26 after the thermal use and the possibly necessary supply of water into the thermodynamic circuit 11 are not shown in FIG. 2.
- the second exemplary embodiment according to FIG. 3 and the third exemplary embodiment according to FIG. 4 correspond to the first exemplary embodiment with regard to the gas supply and the gas mixing device 17, so that reference is made to the preceding statements relating to FIG. 2.
- the second and third embodiments differ in the power generation device 4 used from the first embodiment.
- the power generation device 4 comprises a gas turbine 27 in the second exemplary embodiment and in the third Embodiment a gas engine 28, each with an upstream compressor 31 for the supplied gas 3.
- This gas turbine 27 or this gas engine 28 is supplied with the gases 3, which in turn are possibly corrected with regard to their composition, and is fed into the gas turbine 27 or the gas turbine Gas engine 28 burned, with the supply of air 5, preferably at a combustion temperature of at least 1,000 ° C.
- the gas turbine 27 and the gas engine 28 are coupled to a generator 8 which is driven by the gas turbine 27 and the gas engine 28 to generate electricity 24.
- the electricity 24 generated can in turn be fed into a public power grid 25 and / or made available to electrical consumers, as in the first exemplary embodiment according to FIG.
- combustion gases 18 are produced. These are passed through a heat exchanger 29 for further energetic utilization before being passed on to a flue gas desulfurization system 19.
- thermal energy is extracted from the combustion gases 18 and fed to a gypsum plant 22 via a suitable fluid circuit 30, so that this gypsum plant 22 can cover all or part of its heat requirements.
- the heat extracted from the combustion gases 18 can be used in this way for calcining the gypsum 21 and / or for drying gypsum plasterboards in the gypsum plant 22.
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- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
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- Environmental & Geological Engineering (AREA)
- Inorganic Chemistry (AREA)
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Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018114535.7A DE102018114535A1 (de) | 2018-06-18 | 2018-06-18 | Vorrichtung und Verfahren zur Entschwefelung von Erdgas |
| PCT/EP2019/064832 WO2019243074A1 (de) | 2018-06-18 | 2019-06-06 | Vorrichtung und verfahren zur entschwefelung von erdgas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3807219A1 true EP3807219A1 (de) | 2021-04-21 |
Family
ID=66867112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19730723.4A Pending EP3807219A1 (de) | 2018-06-18 | 2019-06-06 | Vorrichtung und verfahren zur entschwefelung von erdgas |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US12110465B2 (de) |
| EP (1) | EP3807219A1 (de) |
| CA (1) | CA3103733C (de) |
| DE (1) | DE102018114535A1 (de) |
| WO (1) | WO2019243074A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT202300024369A1 (it) * | 2023-11-17 | 2025-05-17 | Hfg Srl | Procedimento e sistema per il trattamento di gas acidi |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2202546B (en) * | 1987-02-16 | 1991-07-31 | Hitachi Ltd | Desulfurizing agent, process for treating hydrogen sulfide-containing gas, coal gasification system and power generation system |
| JPH09183618A (ja) | 1995-12-28 | 1997-07-15 | Kansai Electric Power Co Inc:The | 石膏の製造方法 |
| DE102011002320B3 (de) * | 2011-04-28 | 2012-06-21 | Knauf Gips Kg | Verfahren und Vorrichtung zur Erzeugung von Strom aus schwefelwasserstoffhaltigen Abgasen |
| WO2016037258A1 (en) | 2014-09-11 | 2016-03-17 | Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defence | Integrated process for producing calcium sulfate and methanol |
-
2018
- 2018-06-18 DE DE102018114535.7A patent/DE102018114535A1/de active Pending
-
2019
- 2019-06-06 EP EP19730723.4A patent/EP3807219A1/de active Pending
- 2019-06-06 WO PCT/EP2019/064832 patent/WO2019243074A1/de not_active Ceased
- 2019-06-06 CA CA3103733A patent/CA3103733C/en active Active
- 2019-06-06 US US17/253,493 patent/US12110465B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CA3103733A1 (en) | 2019-12-26 |
| US20210253966A1 (en) | 2021-08-19 |
| DE102018114535A1 (de) | 2019-12-19 |
| CA3103733C (en) | 2024-01-09 |
| WO2019243074A1 (de) | 2019-12-26 |
| US12110465B2 (en) | 2024-10-08 |
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