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.

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.