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1. EP2640494 - BACK-UP CONFIGURATIONS AND METHODS FOR SULFURIC ACID PLANTS

Office European Patent Office
Application Number 11841340
Application Date 17.11.2011
Publication Number 2640494
Publication Date 25.09.2013
Publication Kind A4
IPC
B01D 53/50
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
34Chemical or biological purification of waste gases
46Removing components of defined structure
48Sulfur compounds
50Sulfur oxides
B01D 53/14
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
14by absorption
C01B 17/60
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
17Sulfur; Compounds thereof
48Sulfur dioxide; Sulfurous acid
50Preparation of sulfur dioxide
60Isolation of sulfur dioxide from gases
C01B 17/76
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
17Sulfur; Compounds thereof
69Sulfur trioxide; Sulfuric acid
74Preparation
76by contact processes
CPC
B01D 53/1412
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols,
14by absorption
1412Controlling the absorption process
B01D 53/1481
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols,
14by absorption
1456Removing acid components
1481Removing sulfur dioxide or sulfur trioxide
B01D 53/30
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols,
30Controlling by gas-analysis apparatus
B01D 53/507
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols,
34Chemical or biological purification of waste gases
46Removing components of defined structure
48Sulfur compounds
50Sulfur oxides
507by treating the gases with other liquids
B01D 2252/204
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2252Absorbents, i.e. solvents and liquid materials for gas absorption
20Organic absorbents
204Amines
B01D 2257/304
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2257Components to be removed
30Sulfur compounds
304Hydrogen sulfide
Applicants FLUOR TECH CORP
Inventors RAVIKUMAR RAVI
BAZATA RICHARD
Designated States
Priority Data 2011061131 17.11.2011 US
41467610 17.11.2010 US
Title
(DE) BACKUP-KONFIGURATIONEN UND -VERFAHREN FÜR SCHWEFELSÄUREANLAGEN
(EN) BACK-UP CONFIGURATIONS AND METHODS FOR SULFURIC ACID PLANTS
(FR) CONFIGURATIONS ET PROCÉDÉS DE SECOURS POUR INSTALLATIONS DE PRODUCTION D'ACIDE SULFURIQUE
Abstract
(EN)
A sulfuric acid production plant has a discontinuously operating back-up absorber to allow for sulfur emission control in situations where part of or even the entire sulfuric acid production plant is shut down, inoperable, or otherwise compromised. The back-up absorber receives lean solvent from a storage tank that is configured such that continuous operation of the back-up absorber is possible for several hours.

(FR)
Selon l'invention, une installation de production d'acide sulfurique possède un absorbeur de secours qui fonctionne de manière discontinue afin de permettre une régulation des émissions de soufre dans des situations où une partie ou même la totalité de l'installation de production d'acide sulfurique est à l'arrêt, dans un état de non fonctionnement ou autrement compromise. L'absorbeur de secours reçoit du solvant pauvre provenant d'un réservoir de stockage qui est configuré de telle sorte qu'un fonctionnement continu de l'absorbeur de secours est possible pendant plusieurs heures.