公开(公告)号：US20170239618A1

公开(公告)日：2017-08-24

申请号：US15507841

申请日：2015-09-09

Applicant: HALDOR TOPSØE A/S

Inventor： Souheil Saadi ,  Niklas Bengt Jakobsson

IPC: B01D53/86 ,  C01B17/50 ,  C01B17/765 ,  B01D46/24 ,  B01D53/50

CPC classification number: B01D53/8612 ,  B01D46/2407 ,  B01D53/502 ,  B01D53/508 ,  B01D53/869 ,  B01D2251/11 ,  B01D2251/404 ,  B01D2251/604 ,  B01D2255/1023 ,  B01D2255/2065 ,  B01D2255/20723 ,  B01D2255/2073 ,  B01D2255/20761 ,  B01D2255/20769 ,  B01D2255/20776 ,  B01D2255/20784 ,  B01D2255/904 ,  B01D2257/302 ,  B01D2257/304 ,  C01B17/508 ,  C01B17/74 ,  C01B17/765 ,  Y02P20/129

Abstract: A process for the oxidation of hydrogen sulfide to sulfur trioxide with subsequent sulfur trioxide removal comprises oxidizing hydrogen sulfide to sulfur trioxide in at least one catalyst-containing reactor and feeding the effluent from the last reactor to a candle filter unit for SO3 removal, where it is mixed with an injected alkaline sorbent slurry or powder to form an alkali sulfate and a hot clean gas. Preferably the oxidation is done in two reactors, the first oxidizing H2S to SO2 over a monolith type catalyst and the second oxidizing SO2 to SO3 over a VK type catalyst.

公开(公告)号：US10722843B2

公开(公告)日：2020-07-28

申请号：US16477934

申请日：2018-01-11

Applicant: HALDOR TOPSØE A/S

Inventor： Hans Qiongxiao Wu ,  Tommy Bian Xiang ,  Niklas Bengt Jakobsson ,  Rasmus Trane-Restrup ,  Souheil Saadi

IPC: B01D53/86 ,  B01J35/04 ,  C01B17/50

Abstract: The present invention relates to a method and a system for catalytic oxidation of a lean H2S stream. More specifically, the invention concerns a novel way of removing sulfur dioxide (SO2) formed by catalytic oxidation of hydrogen sulfide (H2S) with the purpose of removing H2S from a gas. This catalytic oxidation of H2S yields sulfur dioxide (SO2) through the use of known catalysts, so-called SMC catalysts.

公开(公告)号：US20210101111A1

公开(公告)日：2021-04-08

申请号：US16479651

申请日：2018-02-26

Applicant: Haldor Topsøe A/S

Inventor： Joakim Reimer Thøgersen ,  Francesco Castellino ,  Souheil Saadi ,  Niklas Bengt Jakobsson

IPC: B01D53/60 ,  B01D46/00 ,  B01D46/02 ,  B01D53/50 ,  B01D53/86

Abstract: Process for cleaning an off-gas containing sulphur oxides (SOx), nitrogen oxides (NOx) and particulate matter employing SOx adsorption and ammonia-SCR in one filtration unit, in particular a filter bag house with one or more catalysed fabric filter assemblies.