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公开(公告)号：US20230349633A1
公开(公告)日：2023-11-02
申请号：US18348557
申请日：2023-07-07
发明人： John MAK , Sabrina DEVONE , James SHIH , Curt GRAHAM
CPC分类号： F25J3/0238 , C10G5/04 , C10G5/06 , F25J3/0209 , F25J3/0233 , C10G2300/1025 , C10G2300/4056 , F25J2200/02 , F25J2200/30 , F25J2200/76 , F25J2205/04 , F25J2205/60 , F25J2215/62 , F25J2290/80
摘要： A natural gas liquid plant is retrofitted with a bolt-on unit that includes an absorber that is coupled to an existing demethanizer by refrigeration produced at least in part by compression and expansion of the residue gas, wherein ethane recovery can be increased to at least 99% and propane recovery is at least 99%, and where a lower ethane recovery of 96% is required, the bolt-on unit does not require the absorber, which could be optimum solution for revamping an existing facility. Contemplated configurations are especially advantageous to be used as bolt-on upgrades to existing plants.
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公开(公告)号：US20210215420A1
公开(公告)日：2021-07-15
申请号：US17214072
申请日：2021-03-26
发明人： John MAK , Jacob THOMAS
摘要： A system for processing a gas stream can include a physical solvent unit, an acid gas removal unit upstream or downstream of the physical solvent unit, and an LNG liquefaction unit downstream of the acid gas removal unit. The physical solvent unit is configured to receive a feed gas, remove at least a portion of any C5+ hydrocarbons in the feed gas stream using a physical solvent, and produce a cleaned gas stream comprising the feed gas stream with the portion of the C5+ hydrocarbons removed. The acid gas removal unit is configured to receive the cleaned gas stream, remove at least a portion of any acid gases present in the cleaned gas stream, and produce a treated gas stream. The LNG liquefaction unit is configured to receive the treated gas stream and liquefy at least a portion of the hydrocarbons in the treated gas stream.
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3.发明申请Configurations and Methods for Nitrogen Rejection, LNG and NGL Production from High Nitrogen Feed Gases 有权氮气排放的配置和方法，高氮氮气的LNG和NGL生产公开(公告)号：US20150246859A1
公开(公告)日：2015-09-03
申请号：US14194238
申请日：2014-02-28
发明人： John MAK
IPC分类号： C07C7/09
CPC分类号： F25J1/0231 , B01D53/002 , C07C7/09 , C10G5/06 , C10G2300/1025 , F25J1/0022 , F25J3/0209 , F25J3/0233 , F25J3/0242 , F25J3/0257 , F25J2200/02 , F25J2200/04 , F25J2200/40 , F25J2200/70 , F25J2200/72 , F25J2200/74 , F25J2205/02 , F25J2205/04 , F25J2210/06 , F25J2215/02 , F25J2220/62 , F25J2230/08 , F25J2230/60 , F25J2235/60 , F25J2240/40 , F25J2245/02 , F25J2260/20 , F25J2270/02 , F25J2270/08 , F25J2270/90 , C07C9/04
摘要： Variable N2 content in feed gas ranging from 3 mole % to 50 mole % can be rejected from the process using a feed exchanger that is fluidly coupled with a cold separator and a single fractionation column to produce a nitrogen vent stream and streams that are suitable to be further processed for NGL recovery and LNG production.
摘要翻译： 进料气体中可变的N 2含量范围为3摩尔％至50摩尔％，可以使用与冷分离器和单个分馏塔流体耦合以产生氮气排放流的进料交换器和适于 进一步处理NGL回收和液化天然气生产。
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公开(公告)号：US20140260420A1
公开(公告)日：2014-09-18
申请号：US14210061
申请日：2014-03-13
发明人： John MAK
IPC分类号： F25J3/02
CPC分类号： F25J3/0209 , F25J3/0233 , F25J3/0238 , F25J3/0242 , F25J2200/02 , F25J2200/04 , F25J2200/70 , F25J2200/72 , F25J2200/74 , F25J2200/76 , F25J2200/94 , F25J2205/04 , F25J2215/02 , F25J2215/60 , F25J2215/62 , F25J2230/60 , F25J2240/02 , F25J2245/02 , F25J2270/90 , F25J2280/02 , F25J2290/40
摘要： A natural gas liquids plant uses a demethanizer and a deethanizer in a two-column or single column configuration that can be used for ethane recovery and ethane rejection. During ethane recovery, 95% ethane recovery and 99% propane recovery are achieved, while during ethane rejection the sales gas Wobbe Index requirement is maintained while maintaining 95% propane recovery. A residue gas recycle exchanger is most preferably configured to use the demethanizer overhead product to either cool a portion of the residue gas and a portion of the feed gas during ethane recovery, or to cool a portion of the feed gas using two distinct heat transfer areas to produce a feed gas reflux at significantly lower temperature.
摘要翻译： 天然气液化设备采用双塔或单柱配置的脱甲烷塔和脱乙烷塔，可用于乙烷回收和乙烷排放。 在乙烷回收期间，实现了95％的乙烷回收率和99％的丙烷回收率，而乙烷排放期间维持销售瓦斯指数的要求，同时维持95％的丙烷回收率。 残余气体循环交换器最优选构造成使用脱甲烷塔顶产物在乙烷回收过程中冷却一部分残余气体和一部分进料气体，或者使用两个不同的传热区域冷却一部分进料气体 以在显着较低的温度下产生进料气体回流。
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公开(公告)号：US20180266760A1
公开(公告)日：2018-09-20
申请号：US15988310
申请日：2018-05-24
发明人： John MAK
摘要： A method for operating a natural gas liquids processing (NGL) system, the system being selectively configured in either an ethane rejection configuration or an ethane recovery configuration, the method comprising, when the NGL system is in the ethane rejection configuration, collecting a reboiler bottom stream that, in the ethane rejection configuration, includes ethane in an amount of less than 5% by volume, and when the NGL system is in the ethane recovery configuration, collecting a reboiler bottom stream that, in the ethane recovery configuration, includes ethane in an amount of at least about 30% by volume.
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公开(公告)号：US20210095921A1
公开(公告)日：2021-04-01
申请号：US17054195
申请日：2018-05-22
发明人： John MAK , James SHIH , Dave SCHULTE
摘要： A natural gas liquids (NGL) plant, the NGL plant comprising an absorber configured to provide an absorber overhead and an absorber bottoms, a stripper configured to produce a stripper overhead and a stripper bottoms, wherein the stripper is positioned downstream from the absorber and fluidly connected therewith such that the absorber bottoms can be introduced into the stripper, and a multi-pass heat exchanger configured to provide at least one reflux stream to the absorber, wherein the absorber and stripper are configured, in an ethane rejection arrangement, to provide the stripper overhead to a top of the absorber, and wherein the absorber and stripper are configured, in an ethane recovery arrangement, to provide the stripper overhead to a bottom of the absorber.
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公开(公告)号：US20200370824A1
公开(公告)日：2020-11-26
申请号：US16421138
申请日：2019-05-23
发明人： John MAK , Jacob THOMAS , Dhirav PATEL , Curt GRAHAM , Irene ZHANG
IPC分类号： F25J3/02
摘要： A method for removing heavy hydrocarbons from a feed gas by: feeding, into an absorber, a top reflux stream and a second reflux stream below the top reflux stream, wherein the absorber produces an absorber bottom product stream and an absorber overhead product stream; depressurizing and feeding the absorber bottom product stream to a stripper to produce a stripper bottom product stream and a stripper overhead product stream; cooling and feeding a portion of the absorber overhead product stream back to the absorber as the top reflux stream; and pressurizing and feeding the stripper overhead product stream back to the absorber as the second reflux stream. Systems for carrying out the method are also provided.
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公开(公告)号：US20190242645A1
公开(公告)日：2019-08-08
申请号：US16390687
申请日：2019-04-22
发明人： John MAK , Jacob THOMAS , Curt Graham
CPC分类号： F25J1/0228 , F25J1/0022 , F25J1/0035 , F25J1/004 , F25J1/0052 , F25J1/0055 , F25J1/0212 , F25J1/0216 , F25J1/0239 , F25J1/0291 , F25J1/0292 , F25J3/0209 , F25J3/0233 , F25J3/0238 , F25J3/0242 , F25J2200/02 , F25J2200/04 , F25J2200/08 , F25J2200/70 , F25J2200/76 , F25J2200/78 , F25J2205/50 , F25J2210/06 , F25J2215/04 , F25J2215/60 , F25J2215/62 , F25J2215/64 , F25J2230/30 , F25J2230/60 , F25J2235/60 , F25J2240/02 , F25J2260/20 , F25J2270/12 , F25J2270/18 , F25J2270/60 , F25J2270/66
摘要： A LNG liquefaction plant includes a propane recovery unit including an inlet for a feed gas, a first outlet for a LPG, and a second outlet for an ethane-rich feed gas, an ethane recovery unit including an inlet coupled to the second outlet for the ethane-rich feed gas, a first outlet for an ethane liquid, and a second outlet for a methane-rich feed gas, and a LNG liquefaction unit including an inlet coupled to the second outlet for the methane-rich feed gas, a refrigerant to cool the methane-rich feed gas, and an outlet for a LNG. The LNG plant may also include a stripper, an absorber, and a separator configured to separate the feed gas into a stripper liquid and an absorber vapor. The stripper liquid can be converted to an overhead stream used as a reflux stream to the absorber.
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公开(公告)号：US20190204006A1
公开(公告)日：2019-07-04
申请号：US16297000
申请日：2019-03-08
发明人： John MAK , Jacob THOMAS
CPC分类号： F25J1/0022 , F25J1/004 , F25J1/0042 , F25J1/005 , F25J1/0052 , F25J1/0072 , F25J1/0082 , F25J1/0092 , F25J1/0204 , F25J1/0212 , F25J1/023 , F25J1/0242 , F25J1/025 , F25J1/0281 , F25J1/0283 , F25J1/0285 , F25J1/0288 , F25J2210/06 , F25J2220/64 , F25J2230/20 , F25J2230/32 , F25J2230/60 , F25J2240/70 , F25J2240/82 , F25J2245/90 , F25J2270/16 , F25J2270/18
摘要： A LNG liquefaction plant system includes concurrent power production, wherein the refrigeration content of the refrigerant or SMR is used to liquefy and sub-cool a natural gas stream in a cold box or cryogenic exchanger. For concurrent power production, the system uses waste heat from refrigerant compression to vaporize and superheat a waste heat working fluid that in turn drives a compressor for refrigerant compression. The refrigerant may be an external SMR or an internal LNG refrigerant working fluid expanded and compressed by a twin compander arrangement.
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公开(公告)号：US20180266756A1
公开(公告)日：2018-09-20
申请号：US15985813
申请日：2018-05-22
发明人： John MAK
CPC分类号： F25J3/0209 , C10G5/06 , C10L3/101 , C10L3/12 , C10L2290/06 , C10L2290/46 , C10L2290/48 , C10L2290/543 , F25J3/0233 , F25J3/0238 , F25J3/0242 , F25J2200/04 , F25J2200/70 , F25J2200/78 , F25J2205/04 , F25J2220/64 , F25J2220/66 , F25J2230/30 , F25J2230/60 , F25J2240/40 , F25J2245/02 , F25J2270/02 , F25J2270/12 , F25J2270/60 , F25J2280/02
摘要： Systems and methods that utilize feed gases that are supplied in a wide range of compositions and pressure to provide highly efficient recovery of NGL products, such as propane, utilizing isenthalpic expansion, propane refrigeration, and shell and tube exchangers are described. Plants utilizing such systems and methods can be readily reconfigured between propane recovery and ethane recovery.
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