EP2324223B1 - Vorrichtung für eine kontinuierliche konditionierung von ausgespeichertem erdgas - Google Patents

Vorrichtung für eine kontinuierliche konditionierung von ausgespeichertem erdgas Download PDF

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Publication number
EP2324223B1
EP2324223B1 EP09775873.4A EP09775873A EP2324223B1 EP 2324223 B1 EP2324223 B1 EP 2324223B1 EP 09775873 A EP09775873 A EP 09775873A EP 2324223 B1 EP2324223 B1 EP 2324223B1
Authority
EP
European Patent Office
Prior art keywords
natural gas
mixing chamber
reactor container
housing
separator
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.)
Not-in-force
Application number
EP09775873.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2324223A2 (de
Inventor
Andreas Lenk
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EWE Gasspeicher GmbH
Original Assignee
EWE Gasspeicher GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by EWE Gasspeicher GmbH filed Critical EWE Gasspeicher GmbH
Priority to PL09775873T priority Critical patent/PL2324223T3/pl
Publication of EP2324223A2 publication Critical patent/EP2324223A2/de
Application granted granted Critical
Publication of EP2324223B1 publication Critical patent/EP2324223B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00—Pipe-line systems
    • F17D1/02—Pipe-line systems for gases or vapours
    • F17D1/065—Arrangements for producing propulsion of gases or vapours
    • F17D1/075—Arrangements for producing propulsion of gases or vapours by mere expansion from an initial pressure level, e.g. by arrangement of a flow-control valve

Definitions

  • the invention relates to an apparatus for continuously conditioning stored natural gas prior to being fed to consumer supply lines, comprising a mixing station for producing a fuel gas from natural gas and oxygen, comprising a reactor vessel for catalytic combustion of an introduced mixture of fuel gas and natural gas, at least a downstream of the outlet of the reactor vessel drying station, which has at least one separator for particular water, and at least one expansion valve to reduce pressure.
  • a device of the aforementioned type is according to the patent EP 09 205 78 B1 known.
  • the stored natural gas is heated to compensate for the adjusting in its relaxation Joule-Thomson effect. This is done by the catalytic combustion of a mixed with oxygen partial stream of the stored natural gas, which is then added to the main stream again, whereby the further flowing mixture is heated to a mixing temperature.
  • the heated to the mixing temperature of natural gas then flows through at least one separator before its relaxation takes place.
  • the heated natural gas leaves the known device saturated with water vapor and must be elaborately further conditioned with one of the relaxation still nachzugateden drying station.
  • the residence time of the cold natural gas in the Zumisch Symposium is relatively low, so that the downstream separator for water remains almost ineffective in the known device.
  • the invention has for its object to provide a device can be continuously conditioned with the natural gas stored so that it is suitable for direct introduction into pipelines leading to consumers.
  • a housing including a reactor vessel for catalytic combustion, a mixing chamber and a condensate trap is also in the documents US 5 003 782 A and US 2007/283705 A not revealed.
  • At least one deposition chamber is arranged in the housing.
  • the gas flowing out of the separator chamber reaches the supply lines leading to consumers. Accordingly, relatively short flow paths are present, with the advantage that accumulating condensate remains in contact with the natural gas for a short time. The contamination of the condensate, which is mainly water, with higher hydrocarbon chains is thereby reduced.
  • the mixing chamber is arranged, in which a first feed line for stored cold natural gas opens, the flow paths are still shortened with advantage to a minimum. This is also helped by the fact that the transition from the reactor vessel into the mixing chamber is suitable for obtaining the direct entry of the heated natural gas flowing out of the reactor vessel into the mixing chamber.
  • the transition is formed by a partition between the reactor vessel and mixing chamber be, which has a plurality of openings and thus formed similar to a sieve or hole bottom.
  • the transition allows hot gases to flow out of the reactor vessel into the mixing chamber, with optimum turbulence and thus mixing with the cold natural gas supplied to the mixing chamber and dissolution of the natural gas hydrates during entry of the hot gases into the mixing chamber.
  • the passing of the reactor vessel in the mixing chamber, hot natural gas is strongly cooled by the mixing, causing the condensate immediately sets in the mixing chamber and thus accumulates condensate.
  • Condensate separation from the natural gas takes place in the device according to the invention both at the relaxation points before the leads into the housing of the device and in the housing itself. Condensation is given in the reactor vessel, in the mixing chamber and in the mixing chamber in the direction of outflow of the treated gases separator.
  • the separator is part of the downstream drying station and consists of a likewise arranged in the housing separator chamber.
  • the separation chamber is particularly advantageously subdivided into a region containing a plurality of cyclone separators and an area having a plurality of filter elements.
  • the natural gas mixture can flow out through an outlet directly into the separator chamber adjacent to the mixing chamber, wherein it first reaches the region of the separator chamber in which a plurality of cyclone separators are contained.
  • the cyclone separators serve as coarse separators and clean the expanded natural gas. A subsequent cleaning by fine separation takes place in the region of the deposition chamber, in which a plurality of filter elements are arranged.
  • the reactor vessel, the separator chamber and the mixing chamber have condensate drains discharging into external condensate traps, the maximum contact times of the natural gas with the condensate are short. This minimizes, on the one hand, entrainment of the condensate with the gas flow through the device and, on the other hand, the loading of the condensate with higher hydrocarbon chains.
  • the separate discharge of the condensate from the respective process section has the advantage that differently contaminated condensates can each be subjected to a suitable, special treatment.
  • the combination of filters and multiple cyclones for almost complete separation of the condensates from the gas stream requires a forced operation the gas flow through the separator, with the advantage of almost complete separation of the condensates from the gas.
  • the device according to the invention also has the advantage that its user benefits from its compact design in terms of space and investment costs, because all the essential components for carrying out the conditioning, namely separator, preheater, gas pressure reduction and measurement, gas drying and filtering, can be in the Unite device according to the invention and install on site at a suitable location.
  • Essential to the invention is the combination of the catalytic conversion of oxygen and hydrocarbons on the catalyst in the reactor vessel of the device with the relaxation directly into the mixing chamber and also a tangential flow of natural gas through the first and second supply line; not only in the mixing container, but in particular in the housing around the reactor. This causes the optimum separation of the condensates and the condensation of the water vapor from the catalytic reaction, without local generation of exhaust gases.
  • the calculated efficiency is greater than 1.1, since the condensation and separation of the water vapor and the heat of condensation can be utilized.
  • the procedural control of the device is dew-point controlled via the installed at the entrance and exit of the natural gas dew point measurements that can be implemented in targeted variation of the oxygen addition and variation of the flow control over the control valves of the natural gas flow in the supply lines to the reactor, or directly into the mixing zone.
  • the housing has the form of a hollow cylinder with particular advantage.
  • the reactor vessel is in turn a component inserted concentrically into the hollow cylindrical housing. This component comes with natural gas or the Condensates in contact, which are particularly aggressive due to the oxygen concentration in conjunction with the relatively high temperature of about 400 ° Celsius.
  • the component used as a reactor vessel is therefore made of a chromium-nickel steel whose corrosion resistance is given even at high temperatures.
  • the aluminum oxide has a grain surface vapor-deposited with palladium and / or platinum.
  • the first and the second supply line for natural gas are connected to the housing so that they open in approximately tangential orientation in the reactor vessel and in the mixing chamber. This results in an optimal mixture in the mixing zone and a condensation of the water vapor from the hot reaction zone.
  • the housing forms an outer container and the reactor vessel formed as an inserted component is the inner container of the housing. Both are dimensioned so that in a located between the housing as an outer container and the reactor vessel as an inner container concentric annulus via the second supply line, cold natural gas can flow.
  • the introduced, cold natural gas is diverted from the main stream of the stored natural gas diverted partial flow to which oxygen has already been added in the mixing station and thus is to be regarded as a fuel gas.
  • This fuel gas is passed through the reactor vessel and then mixed with the supplied via the tangential inlet natural gas.
  • the fuel gas may be preheated in a particular precursor to the activation temperature of the reactor, so that the incoming fuel gas can be reacted immediately in the reactor vessel catalytically.
  • the guide is a structurally simple, yet effective, helically placed around the outer shell of the reactor vessel strand element, such as a flat steel strip, which is mounted on the outer shell, attached to the reactor vessel.
  • temperature sensors For controlling and regulating the running in the reactor vessel expansion and combustion process, several temperature sensors are provided. These are arranged side by side along at least one measuring rod, which extends into the reactor vessel in parallel to its longitudinal axis.
  • 20 temperature sensors can be distributed to the length of a dipstick.
  • Each temperature sensor delivers the temperature detected by it as a corresponding signal to a device for controlling and controlling the method.
  • the method can thus be influenced by correspondingly controlled actuations of the expansion valves and the fittings for the oxygen addition to the mixing station, in which a fuel gas is generated.
  • the process can also be dewpoint controlled, via the at least installed at the inlet and outlet of the natural gas dew point measurements.
  • Fig. 1 Figure 11 is a flow chart illustrating the operation of a device within a process for continuous storage of stored natural gas.
  • the natural gas flows in a main line 1 from a non-illustrated memory, such as a cavern, and ultimately, conditioned, in the supply line 2, and further to consumers not shown.
  • a non-illustrated memory such as a cavern
  • a partial flow is branched off from the main line 1 and fed to a mixing station 4.
  • the mixing station 4 is fed via the oxygen line 5 gaseous oxygen, which mixes in the mixing station 4 with the introduced via the pipe 113, branched off at 3 from the main line 1 partial stream of natural gas.
  • the monitoring of the production of a fuel gas from natural gas and oxygen in the mixing station 4 by means of an only schematically indicated electronic safety device 61. From the mixing station 4 out the fuel gas is passed via the line 6 in a preheating station 7.
  • This preheating station 7 is designed as a jet pump arranged in a container, with a driving nozzle 8 and a catching nozzle 9.
  • the catching nozzle 9 is displaceable in the direction of the double arrow 10 by means of working cylinders 11, 11 'relative to the driver nozzle 8, specifically controlled in a temperature-dependent manner, as indicated here by the dashed lines.
  • the Vorissermstation 7 can suck on the suction line 12 released from the catalytic combustion process, hot gases that mix in the Vorracermstation 7 with the introduced from the driver nozzle 8 partial flow of cold natural gas. By this mixing, a preheating of the diverted at 3 partial flow, which flows through the mixing line 13 and passes into the reactor vessel 14, as shown here.
  • the reactor vessel is a component which is inserted into a housing 15.
  • a mixing chamber 16 and a separator 17 are located in the housing 15.
  • the stored cold natural gas flow is forwarded through the main line 1 via the branch point 3 addition and branches into sub-lines 117 and 118, these lead to flash valves 19 and 20th
  • the expansion valve 20 follows, seen in the flow direction, a first supply line 21, which opens into the mixing chamber 16.
  • the expansion valve 19 follows, seen in the flow direction, the second supply line 22. Based on the location of the natural gas entering the housing 15, the expansion fittings 19 and 20 are thus upstream of the supply lines in the flow direction.
  • a transition for the direct entry of the effluent from the reactor vessel 14 heated natural gas into the mixing chamber 16 is designated. Via the mixing chamber outlet 24, the heated gas mixture flows into the precipitator chamber 25 of the precipitator 17.
  • 26, 27 and 28 are condensate drain designated.
  • the condensate drains 26 and 27 are associated with the region of the housing 15 in which the reactor vessel 14 is arranged.
  • the Kondensaiabiaß 28 is associated with the separator chamber 25 of the separator 17.
  • Fig. 2 shows a side view of the housing 15 according to Fig. 1 on average.
  • the housing 15 is formed as a hollow cylinder which is closed at the end with cover flanges 29, 30.
  • the supply lines 21 and 22 are arranged off-center, whereby a tangential inflow of natural gas into the housing 15 takes place.
  • the designed as a hollow cylinder housing 15 encloses the reactor vessel 14, the mixing chamber 16 and the separator 17. These baffles are separated by inserted into the housing 15 transverse floors 31, 32, 33 and 34, wherein the transverse floors 33 and 34 have a plurality of openings , whereby they are similar to a screen or perforated plate.
  • Transverse floor 33 is the transition for the direct entry of the effluent from the reactor vessel 14, heated by the catalytic combustion natural gas in the mixing chamber 16.
  • the transverse bottom 34 allows the preheated fuel gas flowing through the pipe socket 36 to enter the reactor vessel 14 and then, as it flows through the catalyst bed which is contained in the reactor vessel 14 as a bed, to absorb the heat released by catalytic conversion of the admixed oxygen.
  • the heated in the preheating station 7 to activation temperature fuel gas is passed through the leading through the cover flange 29 pipe socket 36 in the Interior of the reactor vessel 14 passed. After flowing through the catalytic bed, in which the catalytic reaction takes place with evolution of heat, a portion of the hot gases via the suction line 12 (FIG. Fig. 1 ) sucked by the jet pump of Vorracermstation 7 to provide the heat energy required for the function of Vormérmstation 7.
  • the suction port 136 of the suction line 12 is in the vicinity of the transition 23 ( Fig.1 ) from the reactor vessel 14 to the mixing chamber 16 forming transverse bottom 33.
  • the suction line 12 also passes through the cover flange 29, according to its offset 37 visible here.
  • the cover flange 29 also serves as a support for equipped with temperature sensors measuring rods 38 and 39 which extend parallel to the longitudinal axis of the reactor vessel 14 into the reactor vessel 14 inside.
  • at least one heating element 40 is provided as an option, which can be used to heat the reactor bed, for example, before the device is put into operation.
  • guide elements 41 are arranged, here a helically wound around the outer shell of the reactor vessel 14 strand element in the form of a standing welded flat steel strip, which is indicated here by a dashed line.
  • the mixing chamber outlet 24 leading into the separator chamber 25 is located.
  • the transverse bottom 31 divides the separator 17 into two juxtaposed areas; a first area into which the mixing chamber outlet 24 is guided, and which is equipped with a plurality of cyclone separators 42 for coarse separation, and a second area in which a plurality of filter elements 43 are arranged.
  • the gas flowing out of the mixing chamber 16 flows through the region with the cyclone separators 42 and then through the region with the filter elements 43.
  • the natural gas finally exits conditioned and thus discharges from the device via the outlet 44.
  • Reactor vessel 14 mixing chamber 16 and separator 17 are provided with condensate outflows 47, which divert accumulating condensate into an external condensate trap 46.
  • the condensate trap 46 is divided into three chamber areas 48, 49 and 50, in which the condensates, depending on the degree of their contamination with hydrocarbons, are collected separately, making their disposal or processing is more economical.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Drying Of Gases (AREA)
EP09775873.4A 2008-08-04 2009-05-12 Vorrichtung für eine kontinuierliche konditionierung von ausgespeichertem erdgas Not-in-force EP2324223B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09775873T PL2324223T3 (pl) 2008-08-04 2009-05-12 Urządzenie do ciągłego kondycjonowania wyprowadzanego gazu ziemnego

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008036244A DE102008036244A1 (de) 2008-08-04 2008-08-04 Vorrichtung für eine kontinuierliche Konditionierung von ausgespeichertem Erdgas
PCT/DE2009/000668 WO2010015217A2 (de) 2008-08-04 2009-05-12 Vorrichtung für eine kontinuierliche konditionierung von ausgespeichertem erdgas

Publications (2)

Publication Number Publication Date
EP2324223A2 EP2324223A2 (de) 2011-05-25
EP2324223B1 true EP2324223B1 (de) 2014-10-15

Family

ID=41501106

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09775873.4A Not-in-force EP2324223B1 (de) 2008-08-04 2009-05-12 Vorrichtung für eine kontinuierliche konditionierung von ausgespeichertem erdgas

Country Status (10)

Country Link
US (1) US8500831B2 (pl)
EP (1) EP2324223B1 (pl)
CA (1) CA2734371C (pl)
DE (1) DE102008036244A1 (pl)
DK (1) DK2324223T3 (pl)
ES (1) ES2527763T3 (pl)
PL (1) PL2324223T3 (pl)
PT (1) PT2324223E (pl)
RU (1) RU2471116C2 (pl)
WO (1) WO2010015217A2 (pl)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2664838A1 (en) * 2012-05-15 2013-11-20 Linde Aktiengesellschaft Device for filling gas cylinders with gas under pressure and filling station
MA40161B1 (fr) * 2014-09-30 2018-12-31 Plasco Energy Group Inc Système de plasma hors équilibre et procédé de raffinage de gaz de synthèse
CN114935111B (zh) * 2022-04-12 2023-12-29 北京市燃气集团有限责任公司 一种天然气门站加热系统及方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3330773A (en) 1963-03-28 1967-07-11 Du Pont Process for preparing gaseous mixtures
GB2040594B (en) 1978-11-23 1982-12-22 Payne J M Device for electrostatically charging sheet material
US4701188A (en) * 1984-08-07 1987-10-20 Mark Industries, Inc. Natural gas conditioning system and method
US5003782A (en) * 1990-07-06 1991-04-02 Zoran Kucerija Gas expander based power plant system
DE4127883A1 (de) 1991-08-22 1993-02-25 Abb Patent Gmbh Einrichtung zur waermeerzeugung durch katalytische verbrennung
US5606858A (en) 1993-07-22 1997-03-04 Ormat Industries, Ltd. Energy recovery, pressure reducing system and method for using the same
DE19633674C2 (de) 1996-08-21 1998-07-16 Hamburger Gaswerke Gmbh In-Line Gasvorwärmung
FR2833863B1 (fr) 2001-12-20 2004-08-20 Air Liquide Reacteur catalytique, installation et procede de reaction correspondants
US7108838B2 (en) 2003-10-30 2006-09-19 Conocophillips Company Feed mixer for a partial oxidation reactor
RU55928U1 (ru) 2006-05-17 2006-08-27 Дмитрий Тимофеевич Аксенов Система для экологически безопасного использования холода, образующегося при расширении природного газа в детандере с отводом механической энергии
EP1865249B1 (en) * 2006-06-07 2014-02-26 2Oc A gas pressure reducer, and an energy generation and management system including a gas pressure reducer

Also Published As

Publication number Publication date
CA2734371C (en) 2016-06-14
WO2010015217A3 (de) 2010-04-01
CA2734371A1 (en) 2010-02-11
PT2324223E (pt) 2015-01-14
RU2011103898A (ru) 2012-09-10
DE102008036244A1 (de) 2010-02-11
US20110120006A1 (en) 2011-05-26
RU2471116C2 (ru) 2012-12-27
WO2010015217A2 (de) 2010-02-11
EP2324223A2 (de) 2011-05-25
DK2324223T3 (en) 2015-01-26
ES2527763T3 (es) 2015-01-29
US8500831B2 (en) 2013-08-06
PL2324223T3 (pl) 2015-04-30

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