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公开(公告)号：US11435138B2
公开(公告)日：2022-09-06
申请号：US14633307
申请日：2015-02-27
Applicant: CONOCOPHILLIPS COMPANY
Inventor： Stuart L. Wilson , Wesley R. Qualls , Matthew C. Gentry , Paula A. Leger , Robert L. Boulanger
IPC: F25J3/02 , F28F21/08 , F25J1/00 , B23K20/00 , B23K20/233 , B23K20/02 , F25J5/00 , F25J1/02 , F28D21/00 , F28D9/00 , F28D7/00 , F28D7/06 , B23K101/14 , B23K103/18 , B23K103/02
Abstract: A method of constructing a plate fin heat exchanger includes joining a first side bar formed from a nickel-iron alloy to a first end of a fin element formed from a nickel-iron alloy through a first nickel-iron alloy bond, and joining a second side bar formed from a nickel-iron alloy to a second end of the fin element through a second nickel-iron alloy bond to create a first layer of the plate fin heat exchanger. The fin element defines a fluid passage.
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Patent Agency Ranking
公开(公告)号：US20230024241A1
公开(公告)日：2023-01-26
申请号：US17867545
申请日：2022-07-18
Applicant: ConocoPhillips Company
Inventor： Dale Embry , Wesley R. Qualls
Abstract: A solvent is dispersed into a natural gas feed at a solvent injection point to produce a mixed feed. The mixed feed contains heavy components with a potentially fouling portion that can cause obstructions in a heat exchanger. A fluid injection system can inject the solvent intermittently, for instance, based on an amount of accumulation or expected accumulation of heavy component solids in the heat exchanger. The solvent prevents the potentially fouling portion of the heavy components from freezing, melts or dissolves the accumulation, and reduces the obstructions in the heat exchanger. The fluid injection system includes a solvent supply, an optional atomizer, an injection controller, optionally one or more sensors, and/or optionally a heater. The solvent injection system can disperse the solvent onto a flow surface for the natural gas feed and/or mixed feed to form a solvent film which further reduces heavy component solids.
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公开(公告)号：US20230375261A1
公开(公告)日：2023-11-23
申请号：US18199549
申请日：2023-05-19
Applicant: ConocoPhillips Company
Inventor： Ying Zhang , Qi Ma , Wesley R. Qualls , Will T. James , Jinghua Chan
IPC: F25J1/00
CPC classification number: F25J1/0055 , F25J1/0022 , F25J1/004 , F25J2220/62
Abstract: Systems and methods for processing liquefied natural gas (LNG) can include an LNG production system with a methane refrigeration cycle downstream from an ethylene refrigeration cycle. The methane refrigeration cycle can be a closed loop methane refrigeration cycle that maintains a methane refrigerant separate from a natural gas feed, (e.g., compared to an open loop methane refrigeration cycle that extracts the methane refrigerant from the natural gas feed and recombines the methane refrigerant with the natural gas feed). The natural gas feed can be a medium or high nitrogen gas feed having a nitrogen content greater than 1.0% molarity.
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公开(公告)号：US20220372379A1
公开(公告)日：2022-11-24
申请号：US17747614
申请日：2022-05-18
Applicant: ConocoPhillips Company
Inventor： Wesley R. Qualls , Christopher M. Widner , Peter N. Slater
Abstract: Disclosed are systems and methods for processing liquefied natural gas (LNG). A LNG production system may include a contaminant removal process with one or more sets of sorbent beds co-loaded with a metal sulfide sorbent and/or metal oxide sorbent. In some examples, the contaminant removal process may include one or more molecular sieve dehydrators co-loaded with a 3A or 4A sieve and a 3A or 4A sieve impregnated with silver. The one or more sets of sorbent beds may be arranged at various locations throughout the LNG production system including upstream of or downstream of heavy component removal beds having activated carbon. In some instances, the LNG production system may include a regeneration process for moving heated fluid, typically feed gas, through a first heavy component removal bed while maintaining other heavy component removal beds online to reduce downtime for the LNG production system, increase production efficiency, and decrease an amount of greenhouse gases released from defrost and flare-offs.
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公开(公告)号：US20210140710A1
公开(公告)日：2021-05-13
申请号：US17092518
申请日：2020-11-09
Applicant: ConocoPhillips Company
Inventor： Will T. James , Matthew C. Gentry , Wesley R. Qualls
IPC: F25J3/06
Abstract: Implementations described and claimed herein provide systems and methods for removing nitrogen during liquefaction of natural gas. In one implementation, a nitrogen rejection unit is used in an LNG facility to remove nitrogen from natural gas during an LNG liquefaction process. The nitrogen rejection unit contains at least two columns and at least one 3-stream condenser, 2-stream condenser or a two 2-stream condenser.
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公开(公告)号：US12006478B2
公开(公告)日：2024-06-11
申请号：US17747614
申请日：2022-05-18
Applicant: ConocoPhillips Company
Inventor： Wesley R. Qualls , Christopher M. Widner , Peter N. Slater
CPC classification number: C10G25/05 , B01J20/0285 , B01J20/06 , B01J20/324 , C10G25/003 , B01J2220/56 , C10G2300/1025
Abstract: Disclosed are systems and methods for processing liquefied natural gas (LNG). A LNG production system may include a contaminant removal process with one or more sets of sorbent beds co-loaded with a metal sulfide sorbent and/or metal oxide sorbent. In some examples, the contaminant removal process may include one or more molecular sieve dehydrators co-loaded with a 3A or 4A sieve and a 3A or 4A sieve impregnated with silver. The one or more sets of sorbent beds may be arranged at various locations throughout the LNG production system including upstream of or downstream of heavy component removal beds having activated carbon. In some instances, the LNG production system may include a regeneration process for moving heated fluid, typically feed gas, through a first heavy component removal bed while maintaining other heavy component removal beds online to reduce downtime for the LNG production system, increase production efficiency, and decrease an amount of greenhouse gases released from defrost and flare-offs.
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