公开(公告)号：US11725879B2

公开(公告)日：2023-08-15

申请号：US16325696

申请日：2017-09-08

申请人： Fluor Technologies Corporation

发明人： John Mak ,  Sabrina Devone ,  James Shih ,  Curt Graham

IPC分类号： F25J3/02 ,  C10G5/04 ,  C10G5/06

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.