DE102010050214A1 - Concentrating methane or other combustible gases from gas mixtures, comprises removing burning gas-rich product gas stream from the retentate side of permeator, followed by supplying a compressed gas scrubber to a gas inlet - Google Patents
Concentrating methane or other combustible gases from gas mixtures, comprises removing burning gas-rich product gas stream from the retentate side of permeator, followed by supplying a compressed gas scrubber to a gas inlet Download PDFInfo
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- DE102010050214A1 DE102010050214A1 DE102010050214A DE102010050214A DE102010050214A1 DE 102010050214 A1 DE102010050214 A1 DE 102010050214A1 DE 102010050214 A DE102010050214 A DE 102010050214A DE 102010050214 A DE102010050214 A DE 102010050214A DE 102010050214 A1 DE102010050214 A1 DE 102010050214A1
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- gas
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- burner
- scrubber
- stream
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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, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- 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
- C10L3/104—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
- B01D53/22—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 diffusion
- B01D53/229—Integrated processes (Diffusion and at least one other process, e.g. adsorption, absorption)
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/144—Purification; Separation; Use of additives using membranes, e.g. selective permeation
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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
- B01D2257/50—Carbon oxides
- B01D2257/504—Carbon dioxide
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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
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
-
- 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
- Y02P20/10—Process efficiency
-
- 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
-
- 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
- Y02P20/50—Improvements relating to the production of bulk chemicals
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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Water Supply & Treatment (AREA)
- Treating Waste Gases (AREA)
Abstract
Description
Bei der Erfindung handelt es sich um ein Verfahren zur Aufkonzentrierung von brenngashaltigen, niederkalorischen Gasgemischen auf Erdgasqualität.The invention relates to a process for concentrating gas-containing, low-calorie gas mixtures to natural gas quality.
Die Nutzung von niederkalorischen, brenngashaltigen Gasen, insbesondere von Biogas, wird aufgrund der weltweiten Ressourcenknappheit immer wichtiger. So wird z. B. Biogas derzeit überwiegend dezentral, direkt am Ort seiner Entstehung, mit Hilfe von Blockheizkraftwerken zu Strom und Wärme umgewandelt, die dabei entstehende Wärme aber häufig nur unzureichend vor Ort genutzt, weil die entsprechenden Wärmeabnehmer fehlen.The use of low-calorific, gas-containing gases, especially biogas, is becoming increasingly important due to the shortage of resources worldwide. So z. As biogas currently predominantly decentralized, directly at the place of its formation, converted by means of combined heat and power plants to electricity and heat, the resulting heat but often insufficiently used locally, because the corresponding heat consumers are missing.
Eine Alternative zur direkten Verstromung besteht darin, den Brenngasanteil solcher schwachkalorischen Gase in vorhandene Gasnetze einzuspeisen und sie dann erst an einem geeigneten Standort energetisch zu nutzen, an dem eine optimale Kraft-Wärmekopplung möglich ist. Dazu müssen Schwachgase (dies sind im folgenden Gase mit weniger als 70% Brenngasanteil, wie z. B. Biogas mit ca. 50% Methananteil), um ins Erdgasnetz eingespeist werden zu können, zuvor auf Erdgasqualität aufbereitet werden. Wirtschaftlich kann dies derzeit nur für größere Anlagen (elektrische Leistung > 1 MWel) mittels unterschiedlichster Verfahren, wie z. B. der Druckwechseladsorption (DWA), der Druckwasserwäsche (DWW), oder der Aminwäsche, realisiert werden.An alternative to direct power generation is to feed the fuel gas content of such low-calorific gases into existing gas networks and then to use them energetically only at a suitable location at which optimum power-heat coupling is possible. In order to be fed into the natural gas network, low-pressure gases (these are gases with less than 70% fuel gas content, such as biogas with approx. 50% methane content) must first be processed to natural gas quality. Economically, this can currently only for larger systems (electrical power> 1 MWel) using a variety of methods, such. B. the pressure swing adsorption (DWA), the pressurized water wash (DWW), or the amine wash, be realized.
Alle verwendeten Aufbereitungsverfahren erfordern aber bisher hohe spezifische Investitionen und verursachen erhebliche Betriebskosten. Vor allem die Wirtschaftlichkeit kleinerer Biogasanlagen mit einer elektrischen Leistung von < 100 kWel (dies entspricht einer Biogasproduktion, die sich in einem Bereich von ca. 70 Normkubikmetern pro Stunde bewegt) ist ohne einen hohen Wärmenutzungsanteil nicht darstellbar.However, all the treatment processes used to date require high specific investments and cause considerable operating costs. Above all, the economy of smaller biogas plants with an electrical output of <100 kW el (this corresponds to a biogas production that moves in a range of about 70 standard cubic meters per hour) can not be represented without a high proportion of heat utilization.
Der Erfindung liegt die Aufgabe zugrunde, die hohen spezifischen Investitionskosten für die Aufkonzentrierung von niederkalorischen Brenngasen wesentlich zu reduzieren, und die Betriebskosten auf einem so niedrigen Level zu halten, dass von kürzesten Amortisationszeiten auch für kleinere Gasaufbereitungsanlagen ausgegangen werden kann.The invention has for its object to significantly reduce the high specific investment costs for the concentration of low calorific fuel gases, and to keep the operating costs at such a low level that can be expected from shortest payback times for smaller gas treatment plants.
Eine erfindungsgemäße Losung dieser Aufgabe ist mit ihren Weiterbildungen in den Patentansprüchen beschrieben. Durch die in der vorliegenden Erfindung geschaffene neuartige Kombination von einfachen, kompakten, auch für kleinere Anlagen geeigneten Verfahrensbausteinen gelingt es, die Wirtschaftlichkeit der Schwachgasnutzung entscheidend zu verbessern bzw. im Falle kleinerer Anlagen überhaupt erst zu ermöglichen. Erfindungsgemäß wird dies realisiert, indem in einer ersten Prozessstufe, dem Permeator (Membraneinheit), der Brenngasanteil des Schwachgases vorkonzentriert wird, um dann in der nachfolgenden Druckgaswäsche auf die erforderliche Endkonzentration angehoben zu werden. Die Nutzung des Permeators vermindert die Baugröße des nachgeschalteten Wäschers um ca. 50% und trägt damit auch zu einer wesentlichen Reduzierung des prozessbedingten Energiebedarfs bei. Die in Zusammensetzung und Menge justierbaren Abgasströme werden mittels eines Brenners, der insbesondere für die Verbrennung von mageren Gemischen geignet ist (Magergasbrenner), komplett in Wärme umgesetzt und bedarfsgerecht im angeschlossenen Wärmeprozess, beispielsweise einem Bioreaktor genutzt, wodurch der bei den üblichen Verfahren sonst vorhandene Brenngasschlupf zuverlässig vermieden wird.An inventive solution of this problem is described with their developments in the claims. By created in the present invention novel combination of simple, compact, suitable for smaller plants process modules, it is possible to improve the profitability of lean gas use crucial or in the case of smaller plants in the first place to allow. In accordance with the invention, this is achieved by preconcentrating the fuel gas portion of the lean gas in a first process stage, the permeator (membrane unit), in order then to be raised to the required final concentration in the subsequent pressurized gas scrubbing. The use of the permeator reduces the size of the downstream scrubber by about 50% and thus contributes to a significant reduction of process-related energy requirements. The adjustable in composition and quantity of exhaust gas streams are completely converted into heat by means of a burner, which is suitable in particular for the combustion of lean mixtures (lean gas burner) and used as needed in the connected heat process, such as a bioreactor, whereby the otherwise present in the conventional method fuel gas slip reliably avoided.
Neben der Einspeisung des aufbereiteten Gases z. B. in das Erdgasnetz ist es auch möglich, das Gas direkt vor Ort als Kraftstoff für gasbetriebene Fahrzeuge zu nutzen.In addition to the feed of the treated gas z. As in the natural gas network, it is also possible to use the gas locally as fuel for gas-powered vehicles.
Die Erfindung wird anhand der nachfolgenden Ausführungsbeispiele ohne Beschränkung des allgemeinen Erfindungsgedankens, unter Bezugnahme auf die
Im Ausführungsbeispiel gemäß
Durch die Wahl der entsprechenden Betriebsparameter für die Membranfläche und Modulgeometrie des Permeators, die Waschmittelmenge, die Waschmittelart, das gewählte Druckniveau und die gewählte Temperatur des Waschmittels der Druckgaswäsche ist es leicht möglich, zielgenau das Qualitätsniveau von Erdgas L oder Erdgas H (Gasbeschaffenheit gemäß DVGW-Arbeitsblättern) oder auch von Fahrzeugkraftstoff zu erreichen.By selecting the appropriate operating parameters for the membrane area and module geometry of the permeator, the amount of detergent, the type of detergent, the selected pressure level and the selected temperature of the washing gas scrubbing agent, it is easily possible to accurately determine the quality level of natural gas L or natural gas H (gas quality according to DVGW). Worksheets) or even of vehicle fuel to achieve.
Entsprechend den geometrischen Erfordernissen für die erforderlichen Überströmgeschwindigkeiten zur Stofftrennung (Stofftransport) mittels Polymermembranen, kann die erforderliche Stoffaustauschfläche kostenoptimiert durch die geeignete Wahl der Membranform (Hohlfasermembran, Rohrmembran, Flachmembran) erfolgen, die dann in ein Modul integriert wird.According to the geometric requirements for the required Überströmgeschwindigkeiten for mass separation (mass transport) by means of polymer membranes, the required mass transfer surface cost optimized by the appropriate choice of the membrane form (hollow fiber membrane, tube membrane, flat membrane) take place, which is then integrated into a module.
Erfindungsgemäß kann als übliche Ausführungsform der Druckgaswäsche ein Füllkörperwäscher (
Eine besondere Ausführungsform der Erfindung wird gemäß
Erfindungsgemäß wird der Prozess in der üblichen Ausbildungsform mit einem Gasbrenner ausgestattet, der auch eine Zumischung (Mischventil
In einer speziellen Ausführungsform kann der Gasbrenner so ausgebildet sein, dass er besonders für die Verbrennung magerer Gemische geeignet ist (Magergasbrenner), um damit zuverlässig den Methanschlupf über den Druckgaswäscheraustrittsstrom (
Die Verfahrenskombination kann erfindungsgemäß durch eine Energierückgewinnungseinheit (
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte Nicht-PatentliteraturCited non-patent literature
- DIN 29290 [0014] DIN 29290 [0014]
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE102010050214A DE102010050214A1 (en) | 2010-11-04 | 2010-11-04 | Concentrating methane or other combustible gases from gas mixtures, comprises removing burning gas-rich product gas stream from the retentate side of permeator, followed by supplying a compressed gas scrubber to a gas inlet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102010050214A DE102010050214A1 (en) | 2010-11-04 | 2010-11-04 | Concentrating methane or other combustible gases from gas mixtures, comprises removing burning gas-rich product gas stream from the retentate side of permeator, followed by supplying a compressed gas scrubber to a gas inlet |
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DE102010050214A1 true DE102010050214A1 (en) | 2012-05-10 |
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DE102010050214A Withdrawn DE102010050214A1 (en) | 2010-11-04 | 2010-11-04 | Concentrating methane or other combustible gases from gas mixtures, comprises removing burning gas-rich product gas stream from the retentate side of permeator, followed by supplying a compressed gas scrubber to a gas inlet |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2762220A1 (en) * | 2013-02-05 | 2014-08-06 | Axiom Angewandte Prozeßtechnik Ges. m.b.H. | Method and device for the utilisation of producer gas |
EP3002052A1 (en) * | 2014-09-25 | 2016-04-06 | Air Products And Chemicals, Inc. | Membrane separation of carbon dioxide from natural gas with energy recovery by combustion of the permeate |
EP3862411A1 (en) * | 2020-02-07 | 2021-08-11 | Prodeval SAS | Treatment of residual gas from purification of biogas |
EP3962629A4 (en) * | 2019-04-30 | 2023-01-11 | Honeywell International Inc. | Process for natural gas production |
-
2010
- 2010-11-04 DE DE102010050214A patent/DE102010050214A1/en not_active Withdrawn
Non-Patent Citations (1)
Title |
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DIN 29290 |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2762220A1 (en) * | 2013-02-05 | 2014-08-06 | Axiom Angewandte Prozeßtechnik Ges. m.b.H. | Method and device for the utilisation of producer gas |
EP3002052A1 (en) * | 2014-09-25 | 2016-04-06 | Air Products And Chemicals, Inc. | Membrane separation of carbon dioxide from natural gas with energy recovery by combustion of the permeate |
CN105597497A (en) * | 2014-09-25 | 2016-05-25 | 气体产品与化学公司 | Membrane separation of carbon dioxide from natural gas with energy recovery |
US10060348B2 (en) | 2014-09-25 | 2018-08-28 | Air Products And Chemicals, Inc. | Membrane separation of carbon dioxide from natural gas with energy recovery |
CN105597497B (en) * | 2014-09-25 | 2020-03-17 | 气体产品与化学公司 | Membrane separation of carbon dioxide from natural gas with energy recovery |
EP3962629A4 (en) * | 2019-04-30 | 2023-01-11 | Honeywell International Inc. | Process for natural gas production |
EP3862411A1 (en) * | 2020-02-07 | 2021-08-11 | Prodeval SAS | Treatment of residual gas from purification of biogas |
WO2021155986A1 (en) * | 2020-02-07 | 2021-08-12 | Prodeval Sas | Treatment of residual gases originating from biogas purification |
FR3107062A1 (en) * | 2020-02-07 | 2021-08-13 | Prodeval | Treatment of residual gases from biogas purification |
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R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20140603 |