公开(公告)号：US10829376B2

公开(公告)日：2020-11-10

申请号：US15572297

申请日：2016-06-29

Applicant: HALDOR TOPSØE A/S

Inventor： Mads Lykke ,  Rasmus Sverdrup ,  Morten Thellefsen

IPC: C01B17/76 ,  B01D53/86 ,  C01B17/80 ,  C01B17/765 ,  C01B17/79 ,  C01B17/54 ,  C01B17/78

Abstract: A process plant for production of sulfuric acid from a process gas comprising SO2, including a process gas inlet, a first SO2 converter having an inlet and an outlet, a first condenser having a gas inlet, a gas outlet and a liquid outlet, a gas mixing device having a first inlet, a second inlet and an outlet, a process gas heater having an inlet and an outlet, a second SO2 converter having an inlet and an outlet, a second condenser having a gas inlet, a gas outlet and a liquid outlet, one or more means for cooling and storage of sulfuric acid and a purified process gas outlet.

公开(公告)号：US09045342B2

公开(公告)日：2015-06-02

申请号：US14343092

申请日：2012-09-27

Applicant: Haldor Topsøe A/S

Inventor： Mads Lykke

IPC: C01B17/76 ,  C01B17/80 ,  C01B17/765 ,  B01D53/86 ,  B01D53/50

CPC classification number: C01B17/765 ,  B01D53/501 ,  B01D53/8609 ,  B01D2255/202 ,  B01D2255/20723 ,  B01D2258/0283 ,  C01B17/7655 ,  C01B17/80

Abstract: The invention relates to a process for oxidation of SO2 to SO3 comprising the steps of (a) directing a stream of feed gas comprising SO2 and O2 to a catalytically active material, (b) oxidizing an amount of said SO2 in said process gas to SO3 in the presence of the catalytically active material, providing a first oxidized process gas, (c) reacting SO3 with water, (d) condensing H2SO4, (e) withdrawing a first desulphurized process gas and a first stream of sulphuric acid, (f) from the desulphurized process gas withdrawing a recycle stream of desulphurized process gas, wherein the recycle stream is added to said stream of feed gas or said first oxidized process gas with the associated benefit of reducing the molar flow of process gas downstream withdrawal of the recycle stream and upstream the mixing point.

Abstract translation: 本发明涉及一种将SO 2氧化成SO 3的方法，包括以下步骤：（a）将包含SO 2和O 2的进料气流引导至催化活性材料，（b）将所述工艺气体中的所述SO 2的量氧化为SO 3 在催化活性材料的存在下，提供第一氧化工艺气体，（c）使SO 3与水反应，（d）冷凝H 2 SO 4，（e）回收第一脱硫工艺气体和第一硫酸流，（f） 从脱硫工艺中抽出脱硫工艺气体的再循环流，其中将再循环流加入到所述进料气体流或所述第一氧化工艺气体中，具有降低处理气体下游回收再循环流的摩尔流量的优点 并在混合点上游。

公开(公告)号：US11807527B2

公开(公告)日：2023-11-07

申请号：US17606607

申请日：2020-04-29

Applicant: HALDOR TOPSØE

Inventor： Morten Thellefsen ,  Martin Møllerhøj ,  Mads Lykke

IPC: C01B17/04 ,  C01B17/76 ,  C01B17/80 ,  B01D53/14 ,  B01D53/86 ,  F23G7/06 ,  C01B17/02 ,  B01J19/00 ,  B01J19/24 ,  C01B17/775

CPC classification number: C01B17/0404 ,  B01D53/1481 ,  B01D53/1493 ,  B01D53/8615 ,  B01J19/0013 ,  B01J19/2405 ,  B01J19/2465 ,  C01B17/0253 ,  C01B17/0447 ,  C01B17/0452 ,  C01B17/0456 ,  C01B17/76 ,  C01B17/775 ,  C01B17/80 ,  C01B17/806 ,  F23G7/06 ,  B01D2255/20723 ,  B01J2219/00157 ,  C01P2006/80 ,  F23G2209/14

Abstract: A process and a process plant for production of elemental sulfur from a feedstock gas including from 15 vol % to 100 vol % H2S and a stream of sulfuric acid, the process including a) providing a Claus reaction furnace feed stream with a substoichiometric amount of oxygen, b) directing s to a reaction furnace operating at elevated temperature, c) cooling, d) directing to contact a material catalytically active in the Claus reaction, e) withdrawing a Claus tail gas and elemental sulfur, f) directing to a means for sulfur oxidation, g) directing to contact a material catalytically active in SO2 oxidation to SO3, h) converting to concentrated sulfuric acid, i) recycling to the Claus reaction furnace, wherein an amount of combustibles, in the Claus tail gas, is oxidized in the presence of a material catalytically active in sulfur oxidation, at an inlet temperature below 400° C.

公开(公告)号：US20140219910A1

公开(公告)日：2014-08-07

申请号：US14343092

申请日：2012-09-27

Applicant: Haldor Topsøe A/S

Inventor： Mads Lykke

IPC: C01B17/765

CPC classification number: C01B17/765 ,  B01D53/501 ,  B01D53/8609 ,  B01D2255/202 ,  B01D2255/20723 ,  B01D2258/0283 ,  C01B17/7655 ,  C01B17/80

Abstract: The invention relates to a process for oxidation of SO2 to SO3 comprising the steps of (a) directing a stream of feed gas comprising SO2 and O2 to a catalytically active material, (b) oxidizing an amount of said SO2 in said process gas to SO3 in the presence of the catalytically active material, providing a first oxidized process gas, (c) reacting SO3 with water, (d) condensing H2SO4, (e) withdrawing a first desulphurized process gas and a first stream of sulphuric acid, (f) from the desulphurized process gas withdrawing a recycle stream of desulphurized process gas, wherein the recycle stream is added to said stream of feed gas or said first oxidized process gas with the associated benefit of reducing the molar flow of process gas downstream withdrawal of the recycle stream and upstream the mixing point.

Abstract translation: 本发明涉及一种将SO 2氧化成SO 3的方法，包括以下步骤：（a）将包含SO 2和O 2的进料气流引导至催化活性材料，（b）将所述工艺气体中的所述SO 2的量氧化为SO 3 在催化活性材料的存在下，提供第一氧化工艺气体，（c）使SO 3与水反应，（d）冷凝H 2 SO 4，（e）回收第一脱硫工艺气体和第一硫酸流，（f） 从脱硫工艺中抽出脱硫工艺气体的再循环流，其中将再循环流加入到所述进料气体流或所述第一氧化工艺气体中，具有降低处理气体下游回收再循环流的摩尔流量的优点 并在混合点上游。

公开(公告)号：US11691877B2

公开(公告)日：2023-07-04

申请号：US17594680

申请日：2020-04-30

Applicant: HALDOR TOPSØE A/S

Inventor： Morten Thellefsen ,  Per Aggerholm Sørensen ,  Martin Møllerhøj ,  Mads Lykke

IPC: C01B17/02 ,  C01B17/04 ,  C01B17/80 ,  B01D53/86 ,  B01J19/00 ,  B01J19/24 ,  C01B17/775 ,  B01D53/14 ,  C01B17/76 ,  F23G7/06

CPC classification number: C01B17/0404 ,  B01D53/1481 ,  B01D53/1493 ,  B01D53/8615 ,  B01J19/0013 ,  B01J19/2405 ,  B01J19/2465 ,  C01B17/0253 ,  C01B17/0447 ,  C01B17/0452 ,  C01B17/0456 ,  C01B17/76 ,  C01B17/775 ,  C01B17/80 ,  C01B17/806 ,  F23G7/06 ,  B01D2255/20723 ,  B01J2219/00157 ,  C01P2006/80 ,  F23G2209/14

Abstract: A process plant and a process for production of sulfur from a feedstock gas including from 15% to 100 vol % H2S and a stream of sulfuric acid, the process including a) providing a Claus reaction furnace feed stream with a substoichiometric amount of oxygen, b) directing to a Claus reaction furnace operating at elevated temperature, c) cooling to provide a cooled Claus converter feed gas, d) directing to contact a material catalytically active in the Claus reaction, e) withdrawing a Claus tail gas and elementary sulfur, f) directing a stream comprising said Claus tail gas to a Claus tail gas treatment, wherein sulfuric acid directed to said Claus reaction furnace is in the form of droplets with 90% of the mass of the droplets having a diameter below 500 μm, with the associated benefit of such a process efficiently converting all liquid H2SO4 to gaseous H2SO4 and further to SO2.

公开(公告)号：US11618677B2

公开(公告)日：2023-04-04

申请号：US17606557

申请日：2020-04-29

Applicant: HALDOR TOPSØE A/S

Inventor： Morten Thellefsen ,  Mads Lykke ,  Martin Møllerhøj

IPC: B01D53/86 ,  C01B17/04 ,  C01B17/80 ,  C01B17/02 ,  B01J19/00 ,  B01J19/24 ,  C01B17/775 ,  B01D53/14 ,  C01B17/76 ,  F23G7/06

Abstract: A revamp process for modifying a sulfur abatement plant including a Claus process plant, the Claus process plant including a Claus reaction furnace and one or more Claus conversion stages, each Claus conversion stage including a conversion reactor and a means for elemental sulfur condensation, and a means of Claus tail gas oxidation configured for receiving a Claus tail gas from said Claus process plant and configured for providing an oxidized Claus tail gas, the process revamp including: a) providing a sulfuric acid producing tail gas treatment plant producing sulfuric acid, and b) providing a means for transferring an amount or all of the sulfuric acid produced in said sulfuric acid producing tail gas treatment plant to said Claus reaction furnace, wherein the moles of sulfur in the transferred sulfuric acid relative to the moles of elemental sulfur withdrawn from the Claus process plant is from 3% to 25%.

公开(公告)号：US11543120B2

公开(公告)日：2023-01-03

申请号：US16620128

申请日：2018-06-26

Applicant: HALDOR TOPSØE A/S

Inventor： Mads Lykke ,  Martin Møllerhøj

IPC: F22B1/18 ,  C01B17/80 ,  C01B17/775 ,  C01B17/765 ,  B01J8/04 ,  B01D53/86

Abstract: In a method for cooling of process gas between catalytic layers or beds in a sulfuric acid plant, in which sulfuric acid is produced from feed gases containing sulfurous components like SO2, H2S, CS2 and COS or liquid feeds like molten sulfur or spent sulfuric acid, one or more boilers, especially water tube boilers, are used instead of conventional steam superheaters to cool the process gas between the catalytic beds in the SO2 converter of the plant. Thereby a less complicated and more cost efficient heat exchanger layout is obtained.

公开(公告)号：US10981788B2

公开(公告)日：2021-04-20

申请号：US16652916

申请日：2018-11-28

Applicant: HALDOR TOPSØE A/S

Inventor： Mads Lykke

IPC: C01B17/04 ,  C01B17/79 ,  C01B17/80 ,  B01J21/04 ,  B01J21/06

Abstract: A process plant including a Claus reaction furnace, a means of Claus gas cooling, a Claus conversion section, a means for Claus tail gas oxidation and a sulfuric acid section, wherein a sulfuric acid outlet of the sulfuric acid section is in fluid communication with an inlet of said Claus reaction furnace, as well as a related process. The process has the associated benefit of such a process avoiding undesired production of sulfuric acid, as well as reducing the Claus process gas volume.