公开(公告)号：US12158266B2

公开(公告)日：2024-12-03

申请号：US17296101

申请日：2019-11-21

Applicant: Edwards Limited

Inventor： Andrew James Seeley ,  Fraser Gray

IPC: F23G7/06 ,  B01D53/70 ,  B01D53/79 ,  F23D14/12 ,  F23D14/14

Abstract: An abatement method is disclosed. The method comprises: supplying a combustion chamber of an abatement apparatus with an effluent stream containing a perfluoro compound, together with combustion reagents and a diluent; heating a combustion zone of said combustion chamber by reacting said combustion reagents to perform abatement of said perfluoro compound to stable by-products, said diluent being selected to remain inert during said abatement. In this way, the perfluoro or other compound is abated in the combustion chamber during the combustion of the combustion reagents, but without creating undesirable compounds such as, for example, NOx or other compounds.

公开(公告)号：US20220010960A1

公开(公告)日：2022-01-13

申请号：US17296101

申请日：2019-11-21

Applicant: Edwards Limited

Inventor： Andrew James Seeley ,  Fraser Gray

IPC: F23G7/06 ,  B01D53/70 ,  B01D53/79 ,  F23D14/14

Abstract: An abatement method is disclosed. The method comprises: supplying a combustion chamber of an abatement apparatus with an effluent stream containing a perfluoro compound, together with combustion reagents and a diluent; heating a combustion zone of said combustion chamber by reacting said combustion reagents to perform abatement of said perfluoro compound to stable by-products, said diluent being selected to remain inert during said abatement. In this way, the perfluoro or other compound is abated in the combustion chamber during the combustion of the combustion reagents, but without creating undesirable compounds such as, for example, NOx or other compounds.

公开(公告)号：US20250025816A1

公开(公告)日：2025-01-23

申请号：US18712554

申请日：2022-11-22

Applicant: Edwards Limited

Inventor： Mark Richard O'Neill ,  Ian David Stones ,  Ian David Benzeval ,  Fraser Gray

IPC: B01D45/14

Abstract: The present invention relates to a rotor for a separator apparatus. The rotor having an axis of rotation and comprising an inlet operable to receive an effluent stream, an annular skirt defining a centrifugal separator operable to separate the effluent stream, the centrifugal separator having a gas outlet in first direction and a waste outlet in a second direction. A surface of the annular skirt is angled towards the axis of rotation of the rotor, such that during rotation of the rotor, non-gaseous matter in the effluent stream is biased towards the waste outlet by contact with said surface. The invention also relates to a separator apparatus comprising such a rotor, a method of treating an effluent stream, and a method of designing a rotor.

公开(公告)号：US20140027411A1

公开(公告)日：2014-01-30

申请号：US14009451

申请日：2012-04-12

Applicant: Edwards Limited

Inventor： Sergey Alexandrovich Voronin ,  Christopher James Philip Clements ,  Daniel Martin McGrath ,  Fraser Gray ,  Andrew James Seeley

IPC: H05H1/34

CPC classification number: H05H1/34 ,  H05H2001/3426 ,  H05H2001/3468 ,  H05H2001/3484

Abstract: To lengthen the service period on DC plasma abatement devices a modified DC plasma torch is provided with an electrically conductive cathode and an electrically conductive anode spaced apart from one another to form a gap therebetween; a metal swirl bush at least partially located within the gap and comprising a channel adapted to permit, in use, a gas to flow through the gap; and a ceramic element interposed between any one or more of: the cathode and the swirl bush; and the anode and the swirl bush.

Abstract translation: 为了延长DC等离子体消除装置的使用期限，改进的DC等离子体焰炬设置有彼此间隔开的导电阴极和导电阳极，以在它们之间形成间隙; 至少部分地位于所述间隙内的金属涡流套管，包括适于在使用中允许气体流过所述间隙的通道; 以及插入在所述阴极和所述涡流衬套中的任一个或多个中的陶瓷元件; 和阳极和涡流衬套。