公开(公告)号：US20230250499A1

公开(公告)日：2023-08-10

申请号：US18134703

申请日：2023-04-14

Applicant: Primetals Technologies Austria GmbH

Inventor： Thomas EDER ,  Robert MILLNER

IPC: C21B13/00 ,  F27B1/21 ,  F27D17/00

CPC classification number: C21B13/0073 ,  C21B13/004 ,  F27B1/21 ,  F27D17/008

Abstract: A method for direct reduction of metal oxide-containing starting materials to produce metallized material by contact with hot reduction gas in a reduction unit (1), wherein the product of the direct reduction is discharged from the reduction unit (1) by means of a product discharge device (3) which is flushed with seal gas and from which vent gas is drawn and subsequently de-dusted. The vent gas is de-dusted dry and the content of at least one gaseous constituent is reduced by catalytic conversion or combustion. Also, a device for carrying out the method is disclosed.

公开(公告)号：US20200332377A1

公开(公告)日：2020-10-22

申请号：US16305926

申请日：2017-06-08

Applicant: PRIMETALS TECHNOLOGIES AUSTRIA GMBH

Inventor： Thomas EDER ,  Robert MILLNER

IPC: C21B13/00 ,  F27B1/21 ,  F27D17/00

Abstract: A method for direct reduction of metal oxide-containing starting materials to produce metallized material by contact with hot reduction gas in a reduction unit (1), wherein the product of the direct reduction is discharged from the reduction unit (1) by means of a product discharge device (3) which is flushed with seal gas and from which vent gas is drawn and subsequently de-dusted. The vent gas is de-dusted dry and the content of at least one gaseous constituent is reduced by catalytic conversion or combustion. Also, a device for carrying out the method is disclosed.