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公开(公告)号：US20140034553A1
公开(公告)日：2014-02-06
申请号：US14110570
申请日：2012-03-09
IPC分类号： C10G1/04
CPC分类号： C10G1/045 , B01D3/009 , C10G1/04 , C10G2300/44 , C10G2300/80 , C10G2300/805
摘要： The present disclosure relates to a method of processing a bituminous feed. The bituminous feed is contacted with a bridging liquid-in-extraction liquor emulsion to form a slurry. Solids in the slurry are agglomerated, using agitation, to form an agglomerated slurry comprising agglomerated solids and a low solids bitumen extract. The agglomerates are then separated from the low solids bitumen extract. Emulsifying the bridging liquid prior to contacting it with the oil sands may reduce the amount of energy required for the agglomeration process. Other potential benefits may include the production of smaller and more uniform agglomerates. The former may lead to higher bitumen recoveries and the latter may improve the solid-liquid separation rate.
摘要翻译： 本公开涉及一种处理沥青进料的方法。 沥青进料与桥接液体萃取液体乳液接触以形成浆料。 浆料中的固体在搅拌下凝聚，形成包含附聚固体和低固体沥青提取物的附聚浆料。 然后将聚集体与低固体沥青提取物分离。 在与油砂接触之前将桥接液体乳化可能会减少聚集过程所需的能量。 其他潜在的好处可能包括生产较小和更均匀的附聚物。 前者可能导致更高的沥青回收率，后者可能提高固液分离速率。
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公开(公告)号：US10551117B2
公开(公告)日：2020-02-04
申请号：US15348004
申请日：2016-11-10
摘要： A method for producing liquefied natural gas (LNG). A natural gas stream is transported to a liquefaction vessel. The natural gas stream is liquefied on the liquefaction vessel using at least one heat exchanger that exchanges heat between the natural gas stream and a liquid nitrogen stream to at least partially vaporize the liquefied nitrogen stream, thereby forming a warmed nitrogen gas stream and an at least partially condensed natural gas stream comprising LNG. The liquefaction vessel includes at least one tank that only stores liquid nitrogen and at least one tank that only stores LNG.
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公开(公告)号：US11635252B2
公开(公告)日：2023-04-25
申请号：US16526446
申请日：2019-07-30
摘要： A method is disclosed for start-up of a system for liquefying a feed gas stream comprising natural gas. The system has a feed gas compression and expansion loop, and a refrigerant system comprising a primary cooling loop and a sub-cooling loop. The feed gas compression and expansion loop is started up. The refrigerant system is pressurized. Circulation in the primary cooling loop is started and established. Circulation in the sub-cooling loop is started and established. A flow rate of the feed gas stream and circulation rates of the primary cooling loop and the sub-cooling loop are ramped up.
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公开(公告)号：US10480854B2
公开(公告)日：2019-11-19
申请号：US15182035
申请日：2016-06-14
摘要： Described herein are systems and processes to produce liquefied natural gas (LNG) using liquefied nitrogen (LIN) as the refrigerant. Greenhouse gas contaminants are removed from the LIN using a greenhouse gas removal unit.
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公开(公告)号：US11555651B2
公开(公告)日：2023-01-17
申请号：US16526441
申请日：2019-07-30
申请人： Yijun Liu , Fritz Pierre, Jr.
发明人： Yijun Liu , Fritz Pierre, Jr.
摘要： A method for liquefying a feed gas stream. A refrigerant stream is cooled and expanded to produce an expanded, cooled refrigerant stream. Part or all of the expanded, cooled refrigerant stream is mixed with a make-up refrigerant stream in a separator, thereby condensing heavy hydrocarbon components from the make-up refrigerant stream and forming a gaseous expanded, cooled refrigerant stream. The gaseous expanded, cooled refrigerant stream passes through a heat exchanger zone to form a warm refrigerant stream. The feed gas stream is passed through the heat exchanger zone to cool at least part of the feed gas stream by indirect heat exchange with the expanded, cooled refrigerant stream, thereby forming a liquefied gas stream. The warm refrigerant stream is compressed to produce the compressed refrigerant stream.
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公开(公告)号：US11506454B2
公开(公告)日：2022-11-22
申请号：US16526454
申请日：2019-07-30
申请人： Fritz Pierre, Jr.
发明人： Fritz Pierre, Jr.
摘要： A method for liquefying a feed gas stream. A compressed first refrigerant stream is cooled and expanded to produce an expanded first refrigerant stream. The feed gas stream is cooled to within a first temperature range by exchanging heat only with the expanded first refrigerant stream to form a liquefied feed gas stream and a warmed first refrigerant stream. A compressed second refrigerant stream is provided is cooled to produce a cooled second refrigerant stream. At least a portion of the cooled second refrigerant stream is further cooled by exchanging heat with the expanded first refrigerant stream, and then is expanded to form an expanded second refrigerant stream. The liquefied feed gas stream is cooled to within a second temperature range by exchanging heat with the expanded second refrigerant stream to form a sub-cooled LNG stream and a first warmed, second refrigerant stream.
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公开(公告)号：US11536510B2
公开(公告)日：2022-12-27
申请号：US16410607
申请日：2019-05-13
申请人： Yijun Liu , Fritz Pierre, Jr.
发明人： Yijun Liu , Fritz Pierre, Jr.
摘要： A method and apparatus for producing liquefied natural gas. A pretreated natural gas stream is compressed in at least two serially arranged compressors to a pressure of at least 1,500 psia and cooled. The resultant cooled compressed natural gas stream is expanded in at least one work producing natural gas expander to a pressure less than 2,000 psia and no greater than the pressure to which natural gas stream has been compressed, thereby forming a chilled natural gas stream that is separated into a refrigerant stream and a non-refrigerant stream. The refrigerant stream is warmed in a heat exchanger through heat exchange with one or more process streams associated with pretreating the natural gas stream, thereby generating a warmed refrigerant stream. The warmed refrigerant stream and the non-refrigerant stream are then liquefied.
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公开(公告)号：US11079176B2
公开(公告)日：2021-08-03
申请号：US16262243
申请日：2019-01-30
申请人： Fritz Pierre, Jr.
发明人： Fritz Pierre, Jr.
摘要： A method for producing liquefied natural gas (LNG) from a natural gas stream having a nitrogen concentration of greater than 1 mol %. At least one liquid nitrogen (LIN) stream is received at an LNG liquefaction facility. The LIN streams may be produced at a different geographic location from the LNG liquefaction facility. A natural gas stream is liquefied by indirect heat exchange with a nitrogen vent stream to form a pressurized LNG stream. The pressurized LNG stream has a nitrogen concentration of greater than 1 mol %. The pressurized LNG stream is directed to one or more stages of a column to produce an LNG stream and the nitrogen vent stream. The column has upper stages and lower stages. The LIN streams are directed to one or more upper stages of the column.
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9.发明授权公开(公告)号：US11060791B2
公开(公告)日：2021-07-13
申请号：US15182050
申请日：2016-06-14
摘要： Described herein are systems and processes to produce liquefied natural gas (LNG) using liquefied nitrogen (LIN) as the refrigerant. Greenhouse gas contaminants are removed from the LIN using a greenhouse gas removal unit. The LNG is compressed prior to being cooled by the LIN.
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公开(公告)号：US10663115B2
公开(公告)日：2020-05-26
申请号：US15873624
申请日：2018-01-17
摘要： A method for loading liquefied nitrogen (LIN) into a cryogenic storage tank initially containing liquid natural gas (LNG) and a vapor space above the LNG. First and second nitrogen gas streams are provided. The first nitrogen stream has a lower temperature than the second nitrogen gas stream. While the LNG is offloaded from the storage tank, the first nitrogen gas stream is injected into the vapor space. The storage tank is then purged by injecting the second nitrogen gas stream into the storage tank to thereby reduce a natural gas content of the vapor space to less than 5 mol %. After purging the storage tank, the storage tank is loaded with LIN.
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