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公开(公告)号：US20130071315A1
公开(公告)日：2013-03-21
申请号：US13624566
申请日：2012-09-21
Applicant: FLUOR TECHNOLOGIES CORPORATION
Inventor： Thomas Chow , Theresa Flood , Elmo Nasato , Uday Navin Parekh
CPC classification number: C01B17/0232 , B01D19/0005 , C01B17/0404 , C01B17/0408
Abstract: Sulfur emissions from liquid sulfur are reduced, or even entirely avoided by degassing the liquid sulfur at pressure in an out-of-pit vessel and by sweeping the rundown pit (or vessel) with a sweep gas that is non-poisonous for a hydrogenation catalyst. Acid gases from degassing are fed at pressure to the Claus unit, while sweep gases are fed to the tail gas treatment unit to substantially recycle the acid gases to extinction. In preferred plants and methods, motive fluids and booster eductors or compressors are not needed, and incineration of the acid gases can be avoided.
Abstract translation: 液体硫的硫排放量减少甚至完全避免，通过在井外容器内的压力下对液态硫进行脱气，以及用无氢化催化剂的吹扫气体清扫破碎坑（或容器） 。 来自脱气的酸性气体在压力下进料到克劳斯单元，同时吹扫气体被供给到尾气处理单元以基本上将酸性气体再循环到灭火。 在优选的设备和方法中，不需要运动流体和增压喷射器或压缩机，并且可以避免酸性气体的焚烧。
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192.发明授权公开(公告)号：US11505462B2
公开(公告)日：2022-11-22
申请号：US17176050
申请日：2021-02-15
Applicant: Fluor Technologies Corporation
Inventor： Ravi Ravikumar , Sunil Singhal
IPC: B01D53/047 , B01D53/14 , B01D53/26 , B01D53/62 , B01D53/78 , B01D53/96 , B01J19/24 , C01B3/48 , C01B3/50 , C01B3/52 , C01B3/56
Abstract: In a hydrocarbon-fed steam methane reformer hydrogen-production process and system, carbon dioxide is recovered in a pre-combustion context, and optionally additional amounts of carbon dioxide are recovered in a post-combustion carbon dioxide removal, to provide the improved carbon dioxide recovery or capture disclosed herein.
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公开(公告)号：US20210381760A1
公开(公告)日：2021-12-09
申请号：US17393477
申请日：2021-08-04
Applicant: Fluor Technologies Corporation
Inventor： John MAK
IPC: F25J3/02
Abstract: Embodiments relate generally to systems and methods for operating a natural gas liquids plant in ethane rejection and in ethane recovery. A natural gas liquid plant may comprise an absorber configured to produce an ethane rich bottom stream and an ethane depleted vapor stream; a stripper fluidly coupled to the absorber configured to, during ethane rejection, fractionate the ethane rich bottom stream from the absorber into an ethane overhead product and a propane plus hydrocarbons product, and configured to, during ethane recovery, fractionate the ethane rich bottom stream into an ethane plus NGL stream and an overhead vapor stream; and an exchanger configured to, during ethane recovery, counter-currently contact the ethane rich bottom stream from the absorber with the ethane depleted vapor stream from the absorber, thereby heating the vapor stream and chilling the ethane rich bottom stream before the ethane rich bottom stream is fed to the stripper.
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公开(公告)号：US11112175B2
公开(公告)日：2021-09-07
申请号：US15789463
申请日：2017-10-20
Applicant: Fluor Technologies Corporation
Inventor： John Mak
IPC: F25J3/02
Abstract: Embodiments relate generally to systems and methods for operating a natural gas liquids plant in ethane rejection and in ethane recovery. A natural gas liquid plant may comprise an absorber configured to produce an ethane rich bottom stream and an ethane depleted vapor stream; a stripper fluidly coupled to the absorber configured to, during ethane rejection, fractionate the ethane rich bottom stream from the absorber into an ethane overhead product and a propane plus hydrocarbons product, and configured to, during ethane recovery, fractionate the ethane rich bottom stream into an ethane plus NGL stream and an overhead vapor stream; and an exchanger configured to, during ethane recovery, counter-currently contact the ethane rich bottom stream from the absorber with the ethane depleted vapor stream from the absorber, thereby heating the vapor stream and chilling the ethane rich bottom stream before the ethane rich bottom stream is fed to the stripper.
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公开(公告)号：US11112173B2
公开(公告)日：2021-09-07
申请号：US15201070
申请日：2016-07-01
Applicant: Fluor Technologies Corporation
Inventor： John Mak
Abstract: An LNG plant comprises a cold box and a refrigeration unit fluidly coupled with a plurality of heat exchanger passes in the cold box. The refrigeration unit is configured to provide a first refrigerant stream to a first heat exchanger pass of the plurality of heat exchanger passes at a first pressure, a second refrigerant stream to a second heat exchanger pass at a second pressure, and a third refrigerant stream to a third heat exchanger pass at a third pressure. The second refrigerant stream comprises a first portion of the first refrigerant stream, and the third refrigerant stream comprises a second portion of the first refrigerant stream. The second pressure and the third pressure are both below the first pressure. The cold box is configured to produce LNG from a natural gas feed stream to the cold box using a refrigeration content from the refrigeration unit.
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Patent Agency Ranking
公开(公告)号：US10704832B2
公开(公告)日：2020-07-07
申请号：US15988310
申请日：2018-05-24
Applicant: FLUOR TECHNOLOGIES CORPORATION
Inventor： John Mak
Abstract: 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：US10590349B2
公开(公告)日：2020-03-17
申请号：US15621596
申请日：2017-06-13
Applicant: Fluor Technologies Corporation
Inventor： Paul E. Koppel , Ravi Ravikumar
Abstract: Embodiments relate generally to systems and method for processing tars to produce benzene, toluene, and xylene (BTX). A method for processing tars may comprise distilling the tars to separate creosotes and pitch; and processing the pitch via hydropyrolysis, including both hydrogenation and hydrocracking functions, to remove heteroatoms and break down polyaromatics in the pitch and produce monoaromatics, such as BTX. A system for processing tars may comprise one or more of the following: an input stream comprising tars feeding into a column; the column configured to separate the tars into one or more creosote streams and a pitch stream; and a reactor (or a series of reactors, or beds within a single reactor), wherein the pitch stream is fed to the reactor along with a stream of hydrogen, wherein the reactor is configured to break down the pitch to produce BTX.
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198.发明申请公开(公告)号：US20190301795A1
公开(公告)日：2019-10-03
申请号：US16434742
申请日：2019-06-07
Applicant: Fluor Technologies Corporation
Inventor： John MAK
Abstract: Gas processing plants and methods are contemplated in CO2 is effectively removed to very low levels from a feed gas to an NRU unit by adding a physical solvent unit that uses waste nitrogen produced by the NRU as stripping gas to produce an ultra-lean solvent, which is then used to treat the feed gas to the NRU unit. Most preferably, the physical solvent unit includes a flash unit and stripper column to produce the ultra-lean solvent.
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公开(公告)号：US20190120550A1
公开(公告)日：2019-04-25
申请号：US15789463
申请日：2017-10-20
Applicant: Fluor Technologies Corporation
Inventor： John Mak
IPC: F25J3/02
Abstract: Embodiments relate generally to systems and methods for operating a natural gas liquids plant in ethane rejection and in ethane recovery. A natural gas liquid plant may comprise an absorber configured to produce an ethane rich bottom stream and an ethane depleted vapor stream; a stripper fluidly coupled to the absorber configured to, during ethane rejection, fractionate the ethane rich bottom stream from the absorber into an ethane overhead product and a propane plus hydrocarbons product, and configured to, during ethane recovery, fractionate the ethane rich bottom stream into an ethane plus NGL stream and an overhead vapor stream; and an exchanger configured to, during ethane recovery, counter-currently contact the ethane rich bottom stream from the absorber with the ethane depleted vapor stream from the absorber, thereby heating the vapor stream and chilling the ethane rich bottom stream before the ethane rich bottom stream is fed to the stripper.
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公开(公告)号：US20180355257A1
公开(公告)日：2018-12-13
申请号：US16053014
申请日：2018-08-02
Applicant: Fluor Technologies Corporation
Inventor： Chilkunda K. VENKATESH
IPC: C10G7/00
CPC classification number: C10G7/00 , C10G2300/308 , C10G2300/4056 , Y10T29/49716
Abstract: Plants and methods are presented for crude feed pre-processing before feeding the crude feed into a crude unit or vacuum unit. Pre-processing is preferably achieved with a combination of a preflash drum and a preflash column that allows for high-temperature treatment of the liquids and separate vapor phase handling, which advantageously enables retrofitting existing plants to accommodate lighter crude feeds.
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