公开(公告)号：US12281257B2

公开(公告)日：2025-04-22

申请号：US18256359

申请日：2021-10-11

Applicant: EXXONMOBIL UPSTREAM RESEARCH COMPANY

Inventor： Kevin A. Harnsberry ,  P. Scott Northrop

IPC: C09K8/532 ,  C07C7/10 ,  C09K8/524

Abstract: Solids dissolution may be promoted using a solvent blend comprising a disulfide solvent, particularly additional solids present in combination with elemental sulfur deposits. The solvent blends may comprise at least one disulfide solvent, at least one amine solvent, at least one ketone solvent, at least one ester solvent, and optionally water. Solids dissolution methods may comprise: identifying one or more solids in addition to elemental sulfur to be contacted by the solvent blend; adjusting a composition of the solvent blend to afford selectivity for dissolution of at least a portion of the one or more solids; and contacting the solvent blend with elemental sulfur and the one or more solids to promote at least partial dissolution thereof.

公开(公告)号：US11090604B2

公开(公告)日：2021-08-17

申请号：US16660184

申请日：2019-10-22

Applicant: ExxonMobil Upstream Research Company

Inventor： P. Scott Northrop ,  J. Timothy Cullinane

IPC: B01D53/14 ,  B01D53/40 ,  B01D53/78 ,  B01D53/96 ,  B01D53/18 ,  G01N33/00

Abstract: A gas processing system is described herein. The gas processing system includes a number of co-current contacting systems configured to contact a sour feed gas stream including an acid gas with a solvent stream to produce a partially-sweetened gas stream and a rich solvent stream including an absorbed acid gas. At least one of the co-current contacting systems is configured to send the rich solvent stream to a regenerator. The regenerator is configured to remove the absorbed acid gas from the rich solvent stream to produce a lean solvent stream. The gas processing system also includes a solvent treater configured to treat at least a portion of the lean solvent stream to produce an enhanced solvent stream, and a final co-current contacting system configured to contact the partially-sweetened gas stream with the enhanced solvent stream to produce a partially-loaded solvent stream and a final gas stream.

公开(公告)号：US20210086131A1

公开(公告)日：2021-03-25

申请号：US16916983

申请日：2020-06-30

Applicant: ExxonMobil Upstream Research Company

Inventor： P. Scott Northrop ,  Tye R. AIKINS

IPC: B01D53/52 ,  B01D53/14 ,  B01D53/26 ,  E21B41/00 ,  E21B43/16 ,  C01B17/04 ,  B01D53/00

Abstract: A method and apparatus for processing a hydrocarbon gas stream including sulfurous components and carbon dioxide. The hydrocarbon gas stream is separated into a sweetened gas stream and an acid gas stream. The acid gas stream and an air stream, enriched with oxygen such that the air stream comprises between 22% and 100% oxygen, are combusted in a sulfur recovery unit to separate the acid gas stream into a liquid stream of elemental sulfur and a tail gas stream comprising acid gas impurities. The tail gas stream and an air flow are sub-stoichiometrically combusted to produce an outlet stream comprising hydrogen sulfide and carbon monoxide. The outlet stream is hydrogenated to convert sulfur species to a gaseous catalytic output stream comprising hydrogen sulfide. Water is removed from the gaseous catalytic output stream to produce a partially-dehydrated acid gas stream, which is pressurized and injected into a subsurface reservoir.

公开(公告)号：US11083994B2

公开(公告)日：2021-08-10

申请号：US16916983

申请日：2020-06-30

Applicant: ExxonMobil Upstream Research Company

Inventor： P. Scott Northrop ,  Tye R. Aikins

IPC: B01D53/00 ,  B01D53/14 ,  B01D53/26 ,  B01D53/52 ,  C01B17/04 ,  E21B41/00 ,  E21B43/16

Abstract: A method and apparatus for processing a hydrocarbon gas stream including sulfurous components and carbon dioxide. The hydrocarbon gas stream is separated into a sweetened gas stream and an acid gas stream. The acid gas stream and an air stream, enriched with oxygen such that the air stream comprises between 22% and 100% oxygen, are combusted in a sulfur recovery unit to separate the acid gas stream into a liquid stream of elemental sulfur and a tail gas stream comprising acid gas impurities. The tail gas stream and an air flow are sub-stoichiometrically combusted to produce an outlet stream comprising hydrogen sulfide and carbon monoxide. The outlet stream is hydrogenated to convert sulfur species to a gaseous catalytic output stream comprising hydrogen sulfide. Water is removed from the gaseous catalytic output stream to produce a partially-dehydrated acid gas stream, which is pressurized and injected into a subsurface reservoir.