CN105018163A - Method for applying natural gas through SNG - Google Patents
Method for applying natural gas through SNG Download PDFInfo
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- CN105018163A CN105018163A CN201410180182.5A CN201410180182A CN105018163A CN 105018163 A CN105018163 A CN 105018163A CN 201410180182 A CN201410180182 A CN 201410180182A CN 105018163 A CN105018163 A CN 105018163A
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- natural gas
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- sweet natural
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Abstract
The invention relates to the technical field of environmental protection and new energy, and discloses a method for applying natural gas through SNG, in particular to a method (hereinafter referred as SNG) for preparing natural gas through specially-designed solvent in a dissolving mode and storing, transporting and applying the natural gas in natural gas application engineering. By the adoption of the technical scheme for achieving the purpose, the method includes the steps that a special dissolving technology is used for storing natural gas in solvent, and energy needed for dissolving the natural gas is provided for the technology process; in using the natural gas, the natural gas is extracted from the solvent to be used under using pressure. In the process of preparing the SNG, only mechanical energy is consumed; in the process of applying the natural gas, the natural gas which is convenient to extract under the using pressure is extracted, heat energy in the extracting process can be recovered, and cold energy is taken out from a heat exchanger through intermediate media and conveyed into an energy storage pool. The cold energy is stored inside the energy storage pool through media cheap and easy to obtain and conveyed to cold-using equipment according to needs.
Description
Technical field
The present invention relates to environment protection, technical field of new energies, refer in particular in natural gas applications engineering, a kind of specially designed solvent of Sweet natural gas is dissolved to carrying out the method (calling SNG in the following text) prepared, store, transport, apply.
Background technology
At present, Sweet natural gas, as a kind of clean energy, is more and more applied in energy field.At present, Preparation and storage, transport, application Sweet natural gas mainly adopt the method for CNG and LNG.And in the production process of the preparation of CNG, storage, transport, application, need pressure natural pressure being reduced to 20MPa; In the production process of the preparation of LNG, storage, transport, application, then need the profound hypothermia of Sweet natural gas at-160 DEG C.In above-mentioned two class processes, consuming suitable electric energy, there is high requirement in the equipment of application, there is very large quality, power loss.Quality, power loss do not carry out reclaiming and directly draining into nature, adopt during recovery process and there is extreme difficulty.
The present invention is a kind of method of SNG, Sweet natural gas is carried out to dissolving preparation, stores, transports, applies, and can reclaim the heat energy in leaching process.
Domestic and foreign databases is retrieved according to the technology of the present invention feature.Find the application process of Sweet natural gas at home and abroad patent and report more, there is not yet publish with present method carry out Sweet natural gas dissolving preparation, store, transport, application, and can the heat energy in leaching process to be reclaimed.The dissolving preparation of the Sweet natural gas already applied, store, transport, application, and the method that can reclaim the heat energy in leaching process, patent and report and technological line of the present invention and mechanism not identical.
Summary of the invention
The Sweet natural gas preparation that the object of the invention is to provide a kind of SNG, the method storing, transport, apply.In the method, through special dissolution process, by natural gas storing in a solvent, technological process provides the energy needed for Sweet natural gas dissolving; When using Sweet natural gas, then Sweet natural gas is extracted and sends use under use pressure from solvent.SNG consumes mechanical energy in the preparation, when applying Sweet natural gas, extracting the Sweet natural gas that can extract easily and use pressure, and can reclaiming the heat energy in leaching process, being taken out by cold, be transported in energy storage pool by intermediate medium from interchanger.By medium cheap and easy to get, cold is stored in energy storage pool, be delivered to as required and use cool equipment.
The technical scheme realizing the object of the invention is:
This programme applies a kind of solvent of special formulation, is dissolved wherein by Sweet natural gas, is prepared into SNG, is extracted by Sweet natural gas and send use, reclaim simultaneously to cold energy during application from SNG.Be specially:
(1) natural gas via overdraft and solvent are prepared as the SNG having dissolved Sweet natural gas;
(2) SNG is delivered in the containers such as pipeline, tank car, gas cylinder;
(3) SNG after storage, conveying process, extracts group at user side with the pressure that user needs and uses;
(4), when extracting SNG, cold storage in a solvent, or is taken out with heat-exchange equipment, saves in energy storage pool for subsequent use;
The method of the invention comprises: the solvent (NGS) of dissolved natural gas, dissolved natural gas (SNG), the preparation of SNG, storage, transport, application, application end interchanger and energy storage pool.It is characterized in that: with the solvent (NGS) having dissolved Sweet natural gas (NG), be collectively referred to as SNG, as the main existence form of natural gas storing, transport, application, and the power consumption when user side recovery part prepares SNG.
The invention has the advantages that:
(1) prepare gas product by SNG method, preparation process pressure rating is low, and energy consumption reduces;
(2) with SNG method natural gas-storing, storage facilities pressure comparatively CNG is low, and temperature comparatively LNG is high, and storage facilities cost is low, and vapour loss reduces;
(3) by SNG method transport natural gas, transportation equipment pressure comparatively CNG is low, and temperature comparatively LNG is high, and storage facilities cost is low, and vapour loss reduces;
(4) user is when using SNG, can obtain the Sweet natural gas of different pressures grade on demand;
(5) user is when using SNG, utilizes heat-exchange equipment and energy storage pool, can the higher-grade cold energy that consumes when preparing of recovery part, is applied to and produces and life.
Accompanying drawing explanation
Accompanying drawing is SNG application natural gas method embodiment schematic diagram.In figure: 1 Sweet natural gas, 2 compressors, 3 NGS storage tanks, 4 NGS pumps, 5 SNG mixing tanks, 6 SNG storage tanks, 7 SNG transport trolleys, 8 SNG pipeline transportation, 9 SNG users, 10 cold energy interchanger, 11 Sweet natural gases gas end, 12 energy storage pools, 13 cold energy users
Embodiment
As shown in the figure, in the embodiment of the present invention, each several part continuous relationship connects 1 Sweet natural gas successively with solid line, 2 compressors, 3 NGS storage tanks, 4 NGS pumps, 5 SNG mixing tanks, 6 SNG storage tanks, 7 SNG transport trolleys, 8 SNG pipeline transportation, 9 SNG users, 10 cold energy interchanger, 11 natural gas users, 12 energy storage pools, 13 cold energy users.Application method and the NGS(Sweet natural gas solvent of SNG is applied in the present invention) be key problem in technology.
Embody rule method is described below: (1) gas source enters SNG mixing tank with compressor boosting; (2) NGS with NGS pump delivery to SNG mixing tank; (3) SNG that SNG mixing tank is produced enters SNG storage tank and stores; (4) SNG by transport trolley or Cemented filling to SNG user; (5) SNG is undertaken boosting and reclaiming cold energy by cold energy interchanger, and cold storage is in energy storage pool; (6) natural gas user and cold energy user obtain Sweet natural gas and cold energy respectively.
Referring to accompanying drawing, the operation steps of SNG method is:
(1) Sweet natural gas 1 is boosted to 0.75MPa and enters SNG mixing tank 5 by compressor 2; (2) Sweet natural gas solvent NGS in NGS storage tank 3 is delivered to SNG mixing tank 5 by NGS pump 4; (3) SNG of-20 DEG C that SNG mixing tank 5 is produced enters SNG storage tank 6 and stores; (4) SNG is delivered to SNG user 9 by SNG transport trolley 7 or SNG delivery tube 8 road; (5) SNG is undertaken boosting and reclaiming cold energy by cold energy interchanger 10, and cold storage is in energy storage pool 12; (6) natural gas user 11 and cold energy user 13 obtain Sweet natural gas and cold energy respectively.
Claims (5)
1. the method with SNG application Sweet natural gas invention, the method for SNG comprises: be dissolved in by Sweet natural gas in specific solvent NGS, for the preparation of, store, transport, application Sweet natural gas a kind of method; It is characterized in that the preparation of Sweet natural gas, storage, transport, application adopt the method be dissolved in by Sweet natural gas in specific solvent; It is characterized in that:
(1) Sweet natural gas is dissolved in specific Sweet natural gas solvent (NGS), prepares gas product, be collectively referred to as SNG;
(2) gas product be prepared into, stores with the form of dissolved natural gas (SNG), transports, applies;
(3) in the process of application SNG, adopt heat-exchange equipment the cold energy in SNG leaching process to be given recovery and be beneficial in production and life.
2. method and apparatus according to claim 1, it comprises: the SNG mixing tank of Sweet natural gas solvent (NGS), preparation SNG product and connected successively compressor, SNG storage tank, SNG transport trolley.
3. the processing unit of method according to claim 1, it comprises: all devices selected by invention utilizing dissolved natural gas method, is characterized in that: cause it at low pressures, be dissolved in solvent by gas component under comparatively high temps.
4. the process solvent of method according to claim 1, it comprises: utilize all solvents selected by the invention of dissolved natural gas method, it is characterized in that: solvent at low pressures, a large amount of dissolved natural gas component of comparatively high temps.
5. the cold energy use equipment of method according to claim 1, is characterized in that, in application SNG product process, utilizing extraction cold energy to be applied to and producing and life refrigeration demand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410180182.5A CN105018163A (en) | 2014-05-01 | 2014-05-01 | Method for applying natural gas through SNG |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410180182.5A CN105018163A (en) | 2014-05-01 | 2014-05-01 | Method for applying natural gas through SNG |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105018163A true CN105018163A (en) | 2015-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410180182.5A Pending CN105018163A (en) | 2014-05-01 | 2014-05-01 | Method for applying natural gas through SNG |
Country Status (1)
| Country | Link |
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| CN (1) | CN105018163A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1570459A (en) * | 2004-05-10 | 2005-01-26 | 周照耀 | Gas processing process and use thereof |
| WO2006025841A2 (en) * | 2004-08-26 | 2006-03-09 | Seaone Maritime Corp. | Storage of natural gas in liquid solvents and methods to absorb and segregate natural gas |
| WO2007008584A2 (en) * | 2005-07-08 | 2007-01-18 | Seaone Maritime Corp. | Method of bulk transport and storage of gas in a liquid medium |
| CN101245956A (en) * | 2008-03-25 | 2008-08-20 | 广州市煤气公司 | Method for utilizing pressure energy of natural gas |
-
2014
- 2014-05-01 CN CN201410180182.5A patent/CN105018163A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1570459A (en) * | 2004-05-10 | 2005-01-26 | 周照耀 | Gas processing process and use thereof |
| WO2006025841A2 (en) * | 2004-08-26 | 2006-03-09 | Seaone Maritime Corp. | Storage of natural gas in liquid solvents and methods to absorb and segregate natural gas |
| WO2007008584A2 (en) * | 2005-07-08 | 2007-01-18 | Seaone Maritime Corp. | Method of bulk transport and storage of gas in a liquid medium |
| CN101245956A (en) * | 2008-03-25 | 2008-08-20 | 广州市煤气公司 | Method for utilizing pressure energy of natural gas |
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Application publication date: 20151104 |
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| WD01 | Invention patent application deemed withdrawn after publication |