公开(公告)号：US20210106860A1

公开(公告)日：2021-04-15

申请号：US16596893

申请日：2019-10-09

Applicant: Chevron U.S.A. Inc.

Inventor： Thomas P. HOELEN ,  Cesar OVALLES ,  Adam J. DASSEY ,  Carl W. LAM ,  Russell E. COOPER ,  Janelle L. LEWIS

IPC: A62D3/15 ,  A62D3/40 ,  B01D46/02 ,  B01D53/00 ,  B01D53/40 ,  B01D53/78 ,  B01D53/18

Abstract: Disclosed are systems and methods for treating contaminated material. The material is heated by nonconductive and nonconvective heating in a vacuum chamber such that the surface of the material is heated without significant heating of the air within the chamber. The surface of the material is heated to at least a volatilization temperature of the contaminants or to a decomposition temperature of one or more compounds in intimate contact with the contaminants, so that the concentration of contaminants in the material is reduced. Exhaust is removed from the chamber and cooled. A solids and/or liquids collector removes condensed solids and/or liquids and has a gas outlet connected to a vacuum pump.

公开(公告)号：US20210285720A1

公开(公告)日：2021-09-16

申请号：US17198346

申请日：2021-03-11

Applicant: CHEVRON U.S.A. INC. ,  CHEVRON AUSTRALIA PTY LTD

Inventor： Daniel CHINN ,  Joshua A. THOMPSON ,  Russell E. COOPER ,  Vijay PRADHAN ,  Tonya Jean Fisher

IPC: F25J3/02 ,  C10G7/00

Abstract: The present invention is directed to a method for removing elemental mercury from liquid natural gas comprising changing the stabilizer column operating conditions to beneficially transfer mercury from the stabilized condensate phase to the overhead gas phase, where it may be compressed and recycled with the gas going to the existing feed gas mercury removal units.

公开(公告)号：US20240027129A1

公开(公告)日：2024-01-25

申请号：US18190943

申请日：2023-03-27

Applicant: CHEVRON U.S.A. INC.

Inventor： Christine Marie LONG ,  Daniel CHINN ,  Jinhua BAI ,  Russell E. COOPER ,  Joshua A. THOMPSON

IPC: F25J3/02 ,  C10G7/00

CPC classification number: F25J3/0214 ,  C10G7/00 ,  C10G2300/1025 ,  F25J2220/60 ,  F25J2250/20 ,  C10G2300/205

Abstract: The present invention is directed to a method for removing elemental mercury from liquid natural gas comprising changing the stabilizer column operating conditions to beneficially transfer mercury from the stabilized condensate phase to the overhead gas phase, where it may be compressed and recycled with the gas going to the existing feed gas mercury removal units.