公开(公告)号：US12208297B2

公开(公告)日：2025-01-28

申请号：US18590894

申请日：2024-02-28

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

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：US20240424334A1

公开(公告)日：2024-12-26

申请号：US18590894

申请日：2024-02-28

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 ,  B01D53/18 ,  B01D53/40 ,  B01D53/78

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：US20210387870A1

公开(公告)日：2021-12-16

申请号：US16901482

申请日：2020-06-15

Applicant: Chevron U.S.A. Inc. ,  Arizona Board Of Regents On Behalf Of Arizona State University

Inventor： Carl W. Lam ,  Hong Luo ,  Yuanming Guo ,  Emmy Pruitt ,  Paul Dahlen

IPC: C02F1/36 ,  B01D17/02 ,  B01D17/12 ,  B01D21/28 ,  C02F1/40 ,  C02F1/00

Abstract: A system can include a multi-material fluid having a mixture of a first material and a second material. The system can also include a first vessel into which the multi-material fluid is disposed. The system can further include a first sonication device disposed, at least in part, in the multi-material fluid in the first vessel. The first sonication device, when operating, can emit ultrasound waves into the multi-material fluid. The ultrasound waves separate the first material and the second material from each other in the first vessel.

公开(公告)号：US11414327B2

公开(公告)日：2022-08-16

申请号：US16901482

申请日：2020-06-15

Applicant: Chevron U.S.A. Inc. ,  Arizona Board Of Regents On Behalf Of Arizona State University

Inventor： Carl W. Lam ,  Hong Luo ,  Yuanming Guo ,  Emmy Pruitt ,  Paul Dahlen

IPC: C02F1/36 ,  B01D17/02 ,  B01D17/12 ,  B01D21/28 ,  C02F1/00 ,  C02F1/40 ,  B01D17/04 ,  C02F101/32 ,  C02F103/10

Abstract: A system can include a multi-material fluid having a mixture of a first material and a second material. The system can also include a first vessel into which the multi-material fluid is disposed. The system can further include a first sonication device disposed, at least in part, in the multi-material fluid in the first vessel. The first sonication device, when operating, can emit ultrasound waves into the multi-material fluid. The ultrasound waves separate the first material and the second material from each other in the first vessel.