CN100415856C - A natural gas desulfurization and dehydration purification device - Google Patents
A natural gas desulfurization and dehydration purification device Download PDFInfo
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- CN100415856C CN100415856C CNB200610020946XA CN200610020946A CN100415856C CN 100415856 C CN100415856 C CN 100415856C CN B200610020946X A CNB200610020946X A CN B200610020946XA CN 200610020946 A CN200610020946 A CN 200610020946A CN 100415856 C CN100415856 C CN 100415856C
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 104
- 239000003345 natural gas Substances 0.000 title claims abstract description 53
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 11
- 230000023556 desulfurization Effects 0.000 title claims abstract description 11
- 238000000746 purification Methods 0.000 title description 17
- 230000018044 dehydration Effects 0.000 title description 11
- 238000006297 dehydration reaction Methods 0.000 title description 11
- 239000002904 solvent Substances 0.000 claims abstract description 47
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 239000007789 gas Substances 0.000 claims abstract description 10
- 239000010865 sewage Substances 0.000 claims abstract description 4
- 239000003595 mist Substances 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 5
- 230000005484 gravity Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000015271 coagulation Effects 0.000 abstract 1
- 238000005345 coagulation Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 5
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- -1 natural gas hydrates Chemical class 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 238000011143 downstream manufacturing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
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Abstract
Description
技术领域 technical field
本发明涉及一种新型的天然气净化装置。The invention relates to a novel natural gas purification device.
背景技术 Background technique
自地下储层中开采出来的天然气一般都含有饱和水蒸气、二氧化碳和/或硫化氢等化合物。天然气中水的存在，将在井口装置、集输管道以及液烃回收装置等设备内发生冷凝、积聚，形成天然气水合物而堵塞管路、阀门和设备；二氧化碳和/或硫化氢等酸性组分的存在会对气田的地面管道、设备造成腐蚀，或者给环境和下游加工利用带来危害，从而严重影响天然气的生产、集输与使用。因此，为满足天然气集输过程水露点要求和减轻设备腐蚀以及减少环境污染，需要对天然气进行脱硫、脱水净化处理。Natural gas extracted from underground reservoirs typically contains compounds such as saturated water vapour, carbon dioxide and/or hydrogen sulfide. The presence of water in natural gas will condense and accumulate in equipment such as wellhead devices, gathering and transportation pipelines, and liquid hydrocarbon recovery devices, forming natural gas hydrates to block pipelines, valves, and equipment; acidic components such as carbon dioxide and/or hydrogen sulfide The existence of gas will cause corrosion to the surface pipelines and equipment of the gas field, or bring harm to the environment and downstream processing and utilization, thus seriously affecting the production, gathering, transportation and use of natural gas. Therefore, in order to meet the water dew point requirements of the natural gas gathering and transportation process, reduce equipment corrosion and reduce environmental pollution, it is necessary to desulfurize and dehydrate natural gas.
目前，天然气的净化以集中脱硫脱水净化装置为主，在分散偏远井场上有时采用单井净化装置进行净化处理。天然气集中净化装置主要采用溶液吸收脱硫、脱水工艺。这种集中净化处理装置主要由吸收塔、闪蒸罐、再生塔等设备组成，适合处理气量大、含硫量高的天然气。但是，装置工艺流程复杂、自动控制水平要求严格、投资和能耗高，特别是对于低含硫天然气净化或者电力不富裕或偏僻边远的井站，成本较高存在困难。同时，天然气的压力、水含量、硫化氢和二氧化碳含量以及天然气烃类组成等因素会影响装置的净化效果。At present, the purification of natural gas is mainly performed by centralized desulfurization and dehydration purification devices, and sometimes single well purification devices are used for purification treatment on scattered remote well sites. The natural gas centralized purification device mainly adopts the process of solution absorption desulfurization and dehydration. This centralized purification treatment device is mainly composed of absorption tower, flash tank, regeneration tower and other equipment, and is suitable for processing natural gas with large gas volume and high sulfur content. However, the device process is complicated, the level of automatic control is strict, and the investment and energy consumption are high. Especially for the purification of low-sulfur natural gas or well stations with low power or remote and remote wells, there are difficulties in high cost. At the same time, factors such as the pressure of natural gas, water content, hydrogen sulfide and carbon dioxide content, and the composition of natural gas hydrocarbons will affect the purification effect of the device.
在偏僻边远井场的单井净化处理方面，天然气脱水方式主要有低温分离法和橇装式脱水等。对于低温分离法脱水要求天然气有一定的压力，可提供足够的节流压力降；而橇装式脱水工艺其流程比较复杂、操作水平要求高、需消耗燃料气和电能，存在溶剂或固体干燥剂的再生或更换等问题。针对偏僻边远的单井低含硫天然气脱硫装置主要以干法脱硫为主，操作方便，但脱硫剂的更换周期短、废弃脱硫剂易自燃，同时还存在废弃脱硫剂的处理、环境污染以及不能处理偏僻边远的高含硫天然气等问题。In terms of single well purification treatment in remote and remote well sites, natural gas dehydration methods mainly include low-temperature separation and skid-mounted dehydration. The dehydration of low-temperature separation method requires natural gas to have a certain pressure, which can provide sufficient throttling pressure drop; while the skid-mounted dehydration process has a relatively complicated process, high operation level requirements, fuel gas and electric energy consumption, and the presence of solvent or solid desiccant issues such as regeneration or replacement. For remote single-well low-sulfur natural gas desulfurization devices, dry desulfurization is mainly used, which is easy to operate, but the replacement cycle of desulfurizers is short, and waste desulfurizers are prone to spontaneous combustion. Deal with remote and remote high-sulfur natural gas and other issues.
发明内容 Contents of the invention
本发明的目的在于提供一种天然气脱硫脱水净化装置，该装置工艺简单、操作方便、易于控制、能耗较低，既可以用于天然气脱水，也可用于天然气脱硫，克服了现有脱硫、脱水装置对偏僻边远单井生产的天然气净化处理的不足。The object of the present invention is to provide a natural gas desulfurization and dehydration purification device, which has simple process, convenient operation, easy control, and low energy consumption. It can be used for both natural gas dehydration and natural gas desulfurization, and overcomes the existing The device is insufficient for the purification and treatment of natural gas produced by remote single wells.
为了实现上述目的，本发明采用如下技术方案。In order to achieve the above object, the present invention adopts the following technical solutions.
一种天然气脱硫脱水净化装置，主要由天然气管道、溶剂储罐、位于天然气管道上的雾化喷射泵和气液分离器组成，其特征在于，所述天然气管道和溶剂储罐通过气相连通管线相连，所述溶剂储罐和雾化喷射泵通过溶剂管线相连，所述溶剂储罐带有溶剂补充管道、放空口、压力表口和排污口，所述气液分离器上部有连接净化气管线的聚结过滤器，下部连接富液管线。A natural gas desulfurization and dehydration purification device, mainly composed of a natural gas pipeline, a solvent storage tank, an atomizing jet pump located on the natural gas pipeline, and a gas-liquid separator, characterized in that the natural gas pipeline and the solvent storage tank are connected through a gas-phase communication pipeline, The solvent storage tank and the atomizing jet pump are connected through a solvent pipeline, and the solvent storage tank is provided with a solvent replenishment pipeline, a vent, a pressure gauge port and a sewage discharge port, and the upper part of the gas-liquid separator has a collector connected to the purified gas pipeline. Knot filter, the lower part is connected to the rich liquid pipeline.
本发明在所述气相连通管线和溶剂补充管道上均设有控制阀，在所述溶剂管线上设有过滤器和调节阀。In the present invention, control valves are provided on the gas-phase communication pipeline and the solvent replenishment pipeline, and a filter and a regulating valve are provided on the solvent pipeline.
与现有技术相比，本发明专利具有以下有益效果：Compared with the prior art, the invention patent has the following beneficial effects:
(1)可直接安装在天然气集输管线上，利用溶剂储罐的高度差、溶剂储罐与雾化喷射泵之间的压力差以及溶剂自身重力，将溶剂注入到天然气集输管线中，减少了吸收塔、闪蒸罐等多个设备，工艺简单，控制容易、操作和维护方便，能够实现连续加注溶剂；(1) It can be directly installed on the natural gas gathering and transportation pipeline, using the height difference of the solvent storage tank, the pressure difference between the solvent storage tank and the atomizing jet pump, and the gravity of the solvent itself, to inject the solvent into the natural gas gathering and transportation pipeline, reducing The absorption tower, flash tank and other equipment are installed, the process is simple, the control is easy, the operation and maintenance are convenient, and it can realize continuous injection of solvents;
(2)不需要电能或外加动能，能耗低和运行成本低，净化后的废溶液可进行集中再生，无废弃物污染环境，特别适合偏僻边远单井生产的天然气的净化处理；(2) No need for electric energy or external kinetic energy, low energy consumption and low operating cost, the purified waste solution can be regenerated in a concentrated manner, and no waste pollutes the environment, especially suitable for the purification of natural gas produced by remote single wells;
(1)既可用于天然气的净化处理，也可用于天然气管线注防冻剂、注缓蚀剂或在天然气中加臭味剂。(1) It can be used not only for the purification of natural gas, but also for injection of antifreeze, corrosion inhibitor or odorant into natural gas pipelines.
附图说明 Description of drawings
图1是本发明的结构示意图Fig. 1 is a structural representation of the present invention
具体实施方式 Detailed ways
下面结合附图进一步说明本发明。Further illustrate the present invention below in conjunction with accompanying drawing.
参看图1。See Figure 1.
一种天然气脱硫脱水净化装置，主要由天然气管道1、溶剂储罐7、位于天然气管道上的雾化喷射泵12和气液分离器14组成，其特征在于，所述天然气管道1和溶剂储罐7通过气相连通管线3相连，所述溶剂储罐7和雾化喷射泵12通过溶剂管线11相连，所述溶剂储罐7带有溶剂补充管道6、放空口4、压力表口5和排污口8，所述气液分离器14上部有连接净化气管线16的聚结过滤器15，下部连接富液管线13。A natural gas desulfurization and dehydration purification device, mainly composed of a natural gas pipeline 1, a solvent storage tank 7, an atomizing jet pump 12 located on the natural gas pipeline, and a gas-
本发明在所述气相连通管线3和溶剂补充管道6上均设有控制阀2，在所述溶剂管线11上设有过滤器9和调节阀10。In the present invention, a
天然气由集输管线经过雾化喷射泵12，在雾化喷射泵12的收缩部分中天然气的压力能转变为动能，流速加快，在雾化喷射泵12的扩压部分中天然气的动能转变为压力能，压力逐渐恢复到初始压力，在雾化喷射泵12的喉颈处就形成一低压区，溶剂储罐7内的压力由气相连通管线3保持，因此在溶剂储罐7和雾化喷射泵12的喉颈之间就产生压力差，在该压力差和罐内液位重力的推动作用下，通过溶剂补充管道6进入溶剂储罐7的溶剂通过雾化喷嘴喷出，在高速的气流中溶剂进一步被高速气流分散成细小雾滴，与天然气充分搅拌、混合，水分或硫化氢被溶剂充分吸收，达到脱除天然气中的水分、硫化氢等杂质的目的。在装置的后端设置一气液分离器14和聚结过滤器15，将吸收后气液进行分离，净化后的天然气通过净化气管线16进入天然气集输管网，而净化后的废溶液通过富液管线13去集中再生处理。The natural gas passes through the atomizing jet pump 12 from the gathering pipeline, and the pressure energy of the natural gas is converted into kinetic energy in the contracting part of the atomizing jet pump 12, and the flow speed is accelerated, and the kinetic energy of the natural gas is converted into pressure energy in the diffuser part of the atomizing jet pump 12. Can, pressure returns to initial pressure gradually, just forms a low-pressure area at the throat of atomizing jet pump 12, and the pressure in solvent storage tank 7 is maintained by gas-
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102260558B (en) * | 2011-06-23 | 2013-08-21 | 北京盈和瑞环保工程有限公司 | Marsh gas purifier |
| CN103566701B (en) * | 2013-09-06 | 2015-08-05 | 中国石油大学(华东) | A kind of gathering system sulphur deposition brings out capturing device |
| CN103468340B (en) * | 2013-09-18 | 2015-01-14 | 中国石油集团西部钻探工程有限公司 | Prepositioned high pressure and post-positioned dehydration device for compressed natural gas |
| CN104131804A (en) * | 2014-06-13 | 2014-11-05 | 胜利油田兴通建设工程有限责任公司 | Gas circulation processing device for single well of oil field |
| CN109724907A (en) * | 2017-10-27 | 2019-05-07 | 中国石油天然气股份有限公司 | Performance evaluation system and method of filter element for moisture filtration |
| CN110857405B (en) * | 2018-08-23 | 2021-08-03 | 中国石油天然气股份有限公司 | Natural gas purification system and method for natural gas flow primary standard device |
| CN111454758B (en) * | 2020-04-10 | 2022-02-11 | 北京石油化工学院 | An efficient and compact natural gas glycol dehydration system and method |
| CN111982631B (en) * | 2020-08-27 | 2023-04-07 | 新乡医学院 | Pathological tissue dewatering device |
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| CN1425746A (en) * | 2001-12-12 | 2003-06-25 | 孙大路 | Purifying device for natural gas |
| CN1563293A (en) * | 2004-04-04 | 2005-01-12 | 熊兴林 | Dust removal technique in use for natural gas and implementing equipment combination |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1425746A (en) * | 2001-12-12 | 2003-06-25 | 孙大路 | Purifying device for natural gas |
| CN1563293A (en) * | 2004-04-04 | 2005-01-12 | 熊兴林 | Dust removal technique in use for natural gas and implementing equipment combination |
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