公开(公告)号：US10322374B2

公开(公告)日：2019-06-18

申请号：US15567005

申请日：2016-04-13

Applicant: Haldor Topsøe A/S

Inventor： Per Aggerholm Sørensen ,  Kurt Agerbæk Christensen

IPC: B01D53/94 ,  B01J21/08 ,  B01J21/04 ,  B01J23/22 ,  B01J27/053 ,  B01D53/86 ,  B01J27/055

Abstract: In a process for the removal of soot from a sulfurous gas stream, a process gas containing O2 and more than 500 ppm SO2 and/or SO3 together with soot is brought into contact with a VK type catalyst in a reactor, said catalyst comprising vanadium pentoxide (V2O5), sulfur in the form of sulfate, pyrosulfate, tri- or tetrasulfate and one or more alkali metals, such as Na, K, Rb or Cs, on a porous carrier, preferably a silicon dioxide carrier.

公开(公告)号：US20180093225A1

公开(公告)日：2018-04-05

申请号：US15567005

申请日：2016-04-13

Applicant: Haldor Topsøe A/S

Inventor： Per Aggerholm Sørensen ,  Kurt Agerbæk Christensen

IPC: B01D53/94 ,  B01J21/08 ,  B01J21/04 ,  B01J23/22 ,  B01J27/053

CPC classification number: B01D53/944 ,  B01D53/864 ,  B01D2255/202 ,  B01D2255/20723 ,  B01D2255/30 ,  B01D2255/707 ,  B01J21/04 ,  B01J21/08 ,  B01J23/22 ,  B01J27/053 ,  B01J27/055

Abstract: In a process for the removal of soot from a sulfurous gas stream, a process gas containing O2 and more than 500 ppm SO2 and/or SO3 together with soot is brought into contact with a VK type catalyst in a reactor, said catalyst comprising vanadium pentoxide (V2O5), sulfur in the form of sulfate, pyrosulfate, tri- or tetrasulfate and one or more alkali metals, such as Na, K, Rb or Cs, on a porous carrier, preferably a silicon dioxide carrier.

公开(公告)号：US10723964B2

公开(公告)日：2020-07-28

申请号：US15759558

申请日：2016-09-09

Applicant: HALDOR TOPSØE A/S

Inventor： Niklas Bengt Jakobsson ,  Kurt Agerbæk Christensen

IPC: C10L3/00 ,  B01J23/22 ,  B01D53/86 ,  B01D53/50 ,  B01J35/04

Abstract: A combustible gas from carbon black production is utilized in a gas engine by adding an oxygen-containing gas to the combustible gas, passing said mixed gas over a selective catalyst, which is active for oxidizing H2S to SO2 but substantially inactive for oxidation of CO, H2 and other hydrocarbons with less than 4 C-atoms, passing the converted gas through an SO2 removal step, and passing the cleaned gas to a gas engine or to an energy recovery boiler. This way, the tail gas from carbon black production, which is normally combusted in a CO boiler or incinerated, can be utilized to good effect.