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1. US4948401 - Gas mixture separator utilizing pressure modulation

Office
États-Unis d'Amérique
Numéro de la demande 07243040
Date de la demande 01.08.1988
Numéro de publication 4948401
Date de publication 14.08.1990
Numéro de délivrance 4948401
Date de délivrance 14.08.1990
Type de publication A
CIB
B01D 53/04
BTECHNIQUES INDUSTRIELLES; TRANSPORTS
01PROCÉDÉS OU APPAREILS PHYSIQUES OU CHIMIQUES EN GÉNÉRAL
DSÉPARATION
53Séparation de gaz ou de vapeurs; Récupération de vapeurs de solvants volatils dans les gaz; Épuration chimique ou biologique des gaz résiduaires, p.ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols
02par adsorption, p.ex. chromatographie préparatoire en phase gazeuse
04avec adsorbants fixes
B01D 53/047
BTECHNIQUES INDUSTRIELLES; TRANSPORTS
01PROCÉDÉS OU APPAREILS PHYSIQUES OU CHIMIQUES EN GÉNÉRAL
DSÉPARATION
53Séparation de gaz ou de vapeurs; Récupération de vapeurs de solvants volatils dans les gaz; Épuration chimique ou biologique des gaz résiduaires, p.ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols
02par adsorption, p.ex. chromatographie préparatoire en phase gazeuse
04avec adsorbants fixes
047Adsorption à pression alternée
CPC
B01D 53/0446
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,
02by adsorption, e.g. preparative gas chromatography
04with stationary adsorbents
0407Constructional details of adsorbing systems
0446Means for feeding or distributing gases
B01D 53/0473
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,
02by adsorption, e.g. preparative gas chromatography
04with stationary adsorbents
047Pressure swing adsorption
0473Rapid pressure swing adsorption
B01D 2259/40007
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2259Type of treatment
40Further details for adsorption processes and devices
40007Controlling pressure or temperature swing adsorption
B01D 2259/40016
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2259Type of treatment
40Further details for adsorption processes and devices
40011Methods relating to the process cycle in pressure or temperature swing adsorption
40013Pressurization
40016with three sub-steps
B01D 2259/40033
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2259Type of treatment
40Further details for adsorption processes and devices
40011Methods relating to the process cycle in pressure or temperature swing adsorption
40028Depressurization
40033with more than three sub-steps
B01D 2259/40067
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2259Type of treatment
40Further details for adsorption processes and devices
40011Methods relating to the process cycle in pressure or temperature swing adsorption
40058Number of sequence steps, including sub-steps, per cycle
40067Seven
Déposants Mitsubishi Jukogyo Kabushiki Kaisha
Inventeurs Izumi Jun
Tanabe Seiichi
Ohshima Kazuaki
Mandataires Fleit, Jacobson, Cohn, Price, Holman & Stern
Données relatives à la priorité 1986292038 08.12.1986 JP
Titre
(EN) Gas mixture separator utilizing pressure modulation
Abrégé
(EN)

A gas mixture separator having adsorbent (1) with pressure dependent adsorptivity includes a cylinder (2) and a piston (3) as a means of pressure modulation necessary for the adsorption and desorption of gas components to be separated. Ingredient gas to be separated is fed to the cylinder through an inlet valve and inlet (5) to flow into contact with the adsorbent (1) by pressure produced by the piston (3) moving toward top dead center in the cylinder (2). The unadsorbed gas component passes through the adsorbent and exits the cylinder through the outlet (4) and associated outlet valve. The adsorbed gas component is desorbed during depressurization of the cylinder (2) during the retraction stroke of the piston (3) and exits through the outlets (8, 6) therefore. Adsorbed gas is introduced into the cylinder (2) through an inlet (7) therefrom from an additional separator for recovery of energy therefrom. A plurality of separators having the same construction (11a, b, c, d), are connected in a cascade arrangement for more economical operation with the adsorbed gas outlets (8 a, b, c, d) connected to adsorbed gas inlets (7a, b, c, d) of other separators. Along with a size reduction and a shortened operational period, a large reduction in power consumption and equipment cost becomes possible.