CN111321022A - 利用调节的第二渗透物的吸气压力通过膜渗透处理气流的设备和方法 - Google Patents
利用调节的第二渗透物的吸气压力通过膜渗透处理气流的设备和方法 Download PDFInfo
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Abstract
用于膜渗透处理至少包含甲烷和二氧化碳的进料气流的设备,其包括:–用于压缩进料气流的压缩机A,–第一膜分离单元,其能够接收来自所述压缩机的气流并提供第一渗透物和第一渗余物,–第二膜分离单元,其能够接收第一渗余物并提供第二渗透物和第二渗余物,–第三膜分离单元,其能够接收第一渗透物并提供第三渗透物和第三渗余物,–至少一个测量装置,其用于测量第二膜单元中第二渗透物的吸气压力,和–至少一个压缩机B,其用于抽吸第二渗透物并根据在将第二渗透物再循环到压缩机A下游的进料气流中之前测量的吸气压力来调节第二渗透物的吸气压力,其中每个膜分离单元包括至少一个对二氧化碳比对甲烷更可渗透的膜。
Description
本发明涉及一种用于通过膜渗透处理至少包含甲烷和二氧化碳的气流以产生富含甲烷的气流的设备,该富含甲烷的气流的甲烷含量满足其使用的要求,和一种用于控制这种设备的方法。
本发明尤其涉及沼气(biogas)的净化,目的是根据用于注入天然气网络的规范来生产生物甲烷。
沼气是在没有氧气的情况下有机物分解产生的气体(需氧发酵),也称为甲烷化。这可能是自然的分解-因此在沼泽地或家庭废物的排放物中被发现-但是沼气的产生也可能是由专用的反应器(称为甲烷化器或消化器)中的废物甲烷化导致的。
由于沼气的主要成分-甲烷和二氧化碳,沼气是一种强大的温室气体;同时,它也构成了可再生能源,在化石燃料日益稀缺的情况下,这是可观的。
沼气主要包含甲烷(CH4)和二氧化碳(CO2),其比例可根据其获取方式的不同而变化,但也包含较小比例的水,氮气,硫化氢,氧气和其他痕量有机化合物。
取决于已分解的有机物和所使用的技术,各成分的比例不同,尽管平均而言,沼气在干燥气体中包含30%至75%的甲烷,15%至60%的CO2,0至15%的氮气,0至5%的氧气和痕量化合物。
沼气以各种方式得到了有益的利用。经过轻度处理后,其可以在生产现场附近进行有益的利用,以提供热量,电力或两者的混合物(热电联产);高二氧化碳含量降低了它的热值,增加了压缩和运输的成本,并限制了以这种方式在附近获利的经济效益。
更大程度地净化沼气可以使其得到更广泛的使用,特别是,对沼气的广泛净化会产生一种沼气,该沼气已被净化到天然气的规格,并且可以替代天然气;如此净化的沼气被称为“生物甲烷”。因此,生物甲烷以在领土内生产的可再生比例补充天然气资源;它可以用于与化石来源的天然气完全相同的用途。可以将其送入天然气网络,汽车加气站;也可以液化并以液化天然气(LNG)等形式存储。
将生物甲烷用于盈利用途的方式取决于当地情况:当地的能源需求,将其用作生物甲烷燃料盈利的可能性以及特别是附近是否有天然气运输或分配网络。通过在给定领域(农业,工业,公民政府)中开展活动的各方之间产生协同作用,生物甲烷的生产有助于这些领域在能源方面获得更大的自给自足。
在收集沼气和获得生物甲烷(可以被压缩或液化的最终产品)之间,需要经历多个阶段。
特别地,在旨在分离二氧化碳以便产生净化的甲烷流的处理之前需要几个阶段。第一阶段是压缩已产生并在大气压下引入的沼气,可以以常规方式使用压缩机获得这种压缩。下一阶段的目标是消除沼气中的腐蚀性成分,即硫化氢和挥发性有机化合物(VOC),为此,以常规方式使用的技术是变压吸附(PSA)和活性炭捕获。接下来是涉及分离二氧化碳以便最终获得其后续使用所需纯度的甲烷的阶段。
二氧化碳是天然气中通常存在的一种污染物,通常需要将其去除。为此,要根据情况使用各种技术。其中,当CO2含量高时,膜技术表现特别出色。因此,它可用于分离存在于源自释放的气体或植物或动物粪便消化器的沼气中的二氧化碳。
无论采用一个膜级还是多个膜级,用于净化气体的膜气分离方法都需要能够以所需的质量,低成本生产一种气体,同时最大程度地减少用于盈利用途的气体的损失。因此,在沼气净化的情况下,所进行的分离主要是CH4/CO2分离,这需要允许产生根据其用途包含大于85%的CH4,优选大于95%的CH4,更优选大于97.5%的CH4的气体,同时将残留气体中的CH4损失和净化成本最小化,后者在很大程度上与在膜上游压缩气体的设备的电力消耗有关。
优选的是,天然气网络以恒定的甲烷浓度接收甲烷流,从而使使用生物甲烷的设备能够均匀地运行。
在此基础上,出现的一个问题是提供一种设备,该设备能够获得恒定浓度的甲烷流。
本发明的一种解决方案是一种用于膜渗透处理至少包含甲烷和二氧化碳的进料气流的设备,该设备包括:
–用于压缩进料气流的压缩机A,
–第一膜分离单元,其能够接收来自所述压缩机的气流并提供第一渗透物和第一渗余物,
–第二膜分离单元,其能够接收第一渗余物并提供第二渗透物和第二渗余物,
–第三膜分离单元,其能够接收第一渗透物并提供第三渗透物和第三渗余物,
–至少一个测量装置,其用于测量第二膜单元中第二渗透物的吸气压力,和
–至少一个压缩机B,其用于抽吸第二渗透物并根据在将第二渗透物再循环到压缩机A下游的进料气流中之前测量的吸气压力来调节第二渗透物的吸气压力,
其中每个膜分离单元包括至少一个对二氧化碳比对甲烷更可渗透的膜。
图1描绘了根据本发明的设备的示例。
根据情况,根据本发明的设备可以具有以下一项或多项特征:
–至少一个用于测量第二渗余物中的CH4浓度的测量装置,和至少一个用于根据测得的CH4浓度来调节进料气流压力的压力调节装置,
–用于调节进料气流压力的调节装置是压缩机或渐进式截止和加压阀。
–将第三渗余物再循环到用于压缩进料气流的压缩机中。
–膜分离单元中使用的膜具有相同的选择性。
本发明还涉及一种用于控制本发明中所定义的设备的方法,包括以下步骤:
–测量第二渗透物的吸气压力的步骤,
–将该测量值与固定设定值进行比较的步骤,
–通过压缩机B调节第二渗透物的吸气压力的步骤,以使压力值等于设定值。
视情况而定,根据本发明的方法可以表现出以下一项或多项特征:
–在调节步骤中,使压缩机B加速或减速;注意,压缩机B的加速将导致膜中压力水平的降低,而压缩机B的减速将导致膜中压力水平的增加;
–通过数据传输装置自动执行测量,比较和调节步骤;
–所述方法包括:测量第二渗余物中CH4浓度的步骤,将该测量值与设定值进行比较的步骤,以及以减少确定的差异的方式调节进料气流压力的步骤;
–使用压缩机A或使用渐进式截止和加压阀调节进料气流的压力。
–调节进料气流的调节步骤涉及增加或降低压力;
–比较步骤和调节步骤由数据传输和数据处理装置自动执行;
–进料气流是沼气。
数据传输和数据处理装置可以例如是可编程控制器类型的工业处理器。
Claims (13)
1.一种用于膜渗透处理至少包含甲烷和二氧化碳的进料气流的设备,其包括:
–用于压缩进料气流的压缩机A,
–第一膜分离单元,其能够接收来自所述压缩机的气流并提供第一渗透物和第一渗余物,
–第二膜分离单元,其能够接收第一渗余物并提供第二渗透物和第二渗余物,
–第三膜分离单元,其能够接收第一渗透物并提供第三渗透物和第三渗余物,
–至少一个测量装置,其用于测量第二膜单元中第二渗透物的吸气压力,和
–至少一个压缩机B,其用于抽吸第二渗透物并根据在将第二渗透物再循环到压缩机A下游的进料气流中之前测量的吸气压力来调节第二渗透物的吸气压力,
其中每个膜分离单元包括至少一个对二氧化碳比对甲烷更可渗透的膜。
2.根据权利要求1的设备,其特征在于,所述设备包括:
-至少一个测量装置,其用于测量第二渗余物中的CH4浓度,和
-至少一个压力调节装置,其用于根据测得的CH4浓度调节进料气流的压力。
3.根据权利要求2的设备,其特征在于,用于调节进料气流的压力的调节装置是压缩机或渐进式截止和加压阀。
4.根据权利要求1至3中任一项的设备,其特征在于,所述第三渗余物被再循环到用于压缩进料气流的压缩机中。
5.根据权利要求1至4中任一项的设备,其特征在于,在膜分离单元中使用的膜具有相同的选择性。
6.用于控制权利要求1至5中任一项所述的设备的方法,包括以下步骤:
–测量第二渗透物的吸气压力的步骤,
–将该测量值与设定值进行比较的步骤,和
–通过压缩机B调节第二渗透物的吸气压力的步骤,以使压力值等于设定值。
7.根据权利要求6的方法,其特征在于,在所述调节步骤中,使压缩机B加速或减速。
8.根据权利要求6或7的方法,其特征在于,所述测量,比较和调节步骤由数据传输装置自动执行。
9.根据权利要求6至8中任一项的方法,其特征在于,所述方法包括:
–测量第二渗余物中CH4浓度的步骤,
–将该测量值与设定值进行比较并确定与该设定值之间的差异的步骤,以及
–以减少确定的差异的方式调节进料气流压力的步骤。
10.根据权利要求9的方法,其特征在于,使用压缩机或使用渐进式截止和加压阀来调节进料气流的压力。
11.根据权利要求9或10的方法,其特征在于,用于调节所述进料气流的调节步骤包括增大或减小压力。
12.根据权利要求9至11中任一项的方法,其特征在于,所述比较步骤和所述调节步骤由数据传输和数据处理装置自动执行。
13.根据权利要求6至12中任一项的方法,其特征在于,所述进料气流为沼气。
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Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN87103695A (zh) * | 1986-04-10 | 1987-11-18 | 联合碳化公司 | 提高气体分离效果的方法 |
DE10002692A1 (de) * | 2000-01-22 | 2001-08-02 | Geesthacht Gkss Forschung | Verfahren und Vorrichtung zur Trennung von gas- und/oder dampfförmigen Medien |
CN1713949A (zh) * | 2002-11-21 | 2005-12-28 | 液体空气乔治洛德方法利用和研究的具有监督和管理委员会的有限公司 | 膜分离方法 |
CN101460597A (zh) * | 2006-04-04 | 2009-06-17 | 埃克森美孚研究工程公司 | 用于lpg回收的膜方法 |
WO2011117121A1 (de) * | 2010-03-24 | 2011-09-29 | Siemens Aktiengesellschaft | Vorrichtung und verfahren zum trennen eines gasgemisches mittels membranen |
CN103068466A (zh) * | 2010-07-01 | 2013-04-24 | 赢创纤维有限公司 | 分离气体的方法 |
WO2015036709A1 (fr) * | 2013-09-16 | 2015-03-19 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Procédé pour une épuration finale de biogaz pour produire du biomethane |
US20150336046A1 (en) * | 2012-11-14 | 2015-11-26 | Evonik Fibres Gmbh | Control of gas composition of a gas separation system having membranes |
CN108530251A (zh) * | 2017-03-02 | 2018-09-14 | 乔治洛德方法研究和开发液化空气有限公司 | 用于膜渗透处理包含甲烷和二氧化碳的气态进料流的设备和方法 |
CN111321021A (zh) * | 2018-12-14 | 2020-06-23 | 乔治洛德方法研究和开发液化空气有限公司 | 利用调节的甲烷浓度通过膜渗透处理气流的设备和方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK2762220T3 (da) * | 2013-02-05 | 2020-06-22 | Axiom Angewandte Prozesstechnik Ges M B H | Fremgangsmåde og indretning til genanvendelse af mager gas |
US10179883B2 (en) * | 2017-02-03 | 2019-01-15 | Air Liquide Advanced Technologies U.S. Llc | Integrated PTSA/membrane method and system for H2S and CO2 removal from biogas |
-
2018
- 2018-12-14 FR FR1872937A patent/FR3089819B1/fr active Active
-
2019
- 2019-12-09 EP EP19214494.7A patent/EP3666367A1/fr active Pending
- 2019-12-12 US US16/712,373 patent/US11083991B2/en active Active
- 2019-12-13 CN CN201911281553.8A patent/CN111321022A/zh active Pending
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN87103695A (zh) * | 1986-04-10 | 1987-11-18 | 联合碳化公司 | 提高气体分离效果的方法 |
DE10002692A1 (de) * | 2000-01-22 | 2001-08-02 | Geesthacht Gkss Forschung | Verfahren und Vorrichtung zur Trennung von gas- und/oder dampfförmigen Medien |
CN1713949A (zh) * | 2002-11-21 | 2005-12-28 | 液体空气乔治洛德方法利用和研究的具有监督和管理委员会的有限公司 | 膜分离方法 |
CN101460597A (zh) * | 2006-04-04 | 2009-06-17 | 埃克森美孚研究工程公司 | 用于lpg回收的膜方法 |
WO2011117121A1 (de) * | 2010-03-24 | 2011-09-29 | Siemens Aktiengesellschaft | Vorrichtung und verfahren zum trennen eines gasgemisches mittels membranen |
CN103068466A (zh) * | 2010-07-01 | 2013-04-24 | 赢创纤维有限公司 | 分离气体的方法 |
US20150336046A1 (en) * | 2012-11-14 | 2015-11-26 | Evonik Fibres Gmbh | Control of gas composition of a gas separation system having membranes |
WO2015036709A1 (fr) * | 2013-09-16 | 2015-03-19 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Procédé pour une épuration finale de biogaz pour produire du biomethane |
CN108530251A (zh) * | 2017-03-02 | 2018-09-14 | 乔治洛德方法研究和开发液化空气有限公司 | 用于膜渗透处理包含甲烷和二氧化碳的气态进料流的设备和方法 |
CN111321021A (zh) * | 2018-12-14 | 2020-06-23 | 乔治洛德方法研究和开发液化空气有限公司 | 利用调节的甲烷浓度通过膜渗透处理气流的设备和方法 |
Non-Patent Citations (2)
Title |
---|
李亨, 张锡文, 何枫: "考虑气体压缩性的多孔材料渗透率和惯性系数的测定", 实验力学, vol. 17, no. 03 * |
白玉洁, 顾爱萍: "气体膜分离的进展及在石油化工中的应用", 应用化工, vol. 29, no. 01 * |
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