ES481848A1 - Un procedimiento oscilante a presion, adiabatico y rapido, para la separacion de aire, junto con un aparato correspon- diente. - Google Patents

Un procedimiento oscilante a presion, adiabatico y rapido, para la separacion de aire, junto con un aparato correspon- diente.

Info

Publication number
ES481848A1
ES481848A1 ES481848A ES481848A ES481848A1 ES 481848 A1 ES481848 A1 ES 481848A1 ES 481848 A ES481848 A ES 481848A ES 481848 A ES481848 A ES 481848A ES 481848 A1 ES481848 A1 ES 481848A1
Authority
ES
Spain
Prior art keywords
molecular sieve
swing adsorption
pressure swing
zeolite molecular
oxygen production
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES481848A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Union Carbide Corp filed Critical Union Carbide Corp
Publication of ES481848A1 publication Critical patent/ES481848A1/es
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation 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
    • B01D53/02—Separation 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 by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation 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 by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/047—Pressure swing adsorption
    • B01D53/0473—Rapid pressure swing adsorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/106—Silica or silicates
    • B01D2253/108—Zeolites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/30—Physical properties of adsorbents
    • B01D2253/302—Dimensions
    • B01D2253/304—Linear dimensions, e.g. particle shape, diameter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2256/00—Main component in the product gas stream after treatment
    • B01D2256/12—Oxygen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/10—Single element gases other than halogens
    • B01D2257/102—Nitrogen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/40007—Controlling pressure or temperature swing adsorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/40011—Methods relating to the process cycle in pressure or temperature swing adsorption
    • B01D2259/40013—Pressurization
    • B01D2259/40015—Pressurization with two sub-steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/40011—Methods relating to the process cycle in pressure or temperature swing adsorption
    • B01D2259/40028—Depressurization
    • B01D2259/4003—Depressurization with two sub-steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/40011—Methods relating to the process cycle in pressure or temperature swing adsorption
    • B01D2259/40043—Purging
    • B01D2259/4005—Nature of purge gas
    • B01D2259/40052—Recycled product or process gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/40011—Methods relating to the process cycle in pressure or temperature swing adsorption
    • B01D2259/40058—Number of sequence steps, including sub-steps, per cycle
    • B01D2259/40062—Four
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/40011—Methods relating to the process cycle in pressure or temperature swing adsorption
    • B01D2259/40058—Number of sequence steps, including sub-steps, per cycle
    • B01D2259/40064—Five
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/40011—Methods relating to the process cycle in pressure or temperature swing adsorption
    • B01D2259/40058—Number of sequence steps, including sub-steps, per cycle
    • B01D2259/40067—Seven
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/40011—Methods relating to the process cycle in pressure or temperature swing adsorption
    • B01D2259/40077—Direction of flow
    • B01D2259/40081—Counter-current
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/402—Further details for adsorption processes and devices using two beds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/403—Further details for adsorption processes and devices using three beds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Of Gases By Adsorption (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)

Abstract

1. Un procedimiento oscilante a presión, adiabático y rápido, para la separación de aire y obtención como producto de un gas oxigenado con al menos 35 moles por ciento de oxígeno, en el que se introduce aire de alimentación a una presión comprendida entre 0,7 y 3,5 kg/cm2.man., en el primer extremo de un lecho de adsorbente que tiene una longitud de extremo a extremo de 0.31 a 1,07 metros y que comprende un tamiz molecular de zeolita cristalina de un tamaño aparente de poro de 5 Angstroms por lo menos y de un tamaño de partícula comprendido entre 0,42 y 0,125 mm, adsorbiéndose selectivamente nitrógeno y descargándose continuamente dicho gas oxigenado producido desde el segundo extremo del lecho durante un periodo de introducción de aire de alimentación, y un periodo de flujo hacia afuera inverso después de dicho periodo de introducción de aire de alimentación durante el cual se desprende desde el primer extremo del lecho gas de purga de oxígeno-desorbato de nitrógeno, todo ello en una sucesión repetitiva cíclica de dos etapas, caracterizado por, al menos, dos y no más de tres lechos de adsorbente dispuestos en una sucesión de flujo alternante con un único distribuidor de productos unido al segundo extremo de tales lechos, cada uno de cuyos lechos tiene un periodo de introducción de aire de alimentación de 0,1 a 6 segundos, un periodo de flujo hacia afuera inverso con gas oxigeno producido que fluye directamente desde otro lecho a dicho segundo extremo como gas de purga, de tal modo que la relación de tiempo de periodo de flujo hacia afuera inverso/periodo de introducción de aire de alimentación es, por lo menos, de 0,5 pero menor de 2, y el tiempo total de ciclo es de 0,2 a 18 segundos, y antes del periodo de introducción del aire de alimentación que sigue, gas oxigenado producido descargado desde un lecho diferente fluye directamente a dicho segundo extremo sin desprendimiento de gas por el primer extremo como un periodo de renovación de la presión del producto que no excedede 1,5 veces el periodo de introducción de aire de alimentación.
ES481848A 1978-12-27 1979-06-23 Un procedimiento oscilante a presion, adiabatico y rapido, para la separacion de aire, junto con un aparato correspon- diente. Expired ES481848A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/973,551 US4194891A (en) 1978-12-27 1978-12-27 Multiple bed rapid pressure swing adsorption for oxygen

Publications (1)

Publication Number Publication Date
ES481848A1 true ES481848A1 (es) 1980-06-16

Family

ID=25521020

Family Applications (1)

Application Number Title Priority Date Filing Date
ES481848A Expired ES481848A1 (es) 1978-12-27 1979-06-23 Un procedimiento oscilante a presion, adiabatico y rapido, para la separacion de aire, junto con un aparato correspon- diente.

Country Status (11)

Country Link
US (1) US4194891A (es)
EP (1) EP0013680B1 (es)
JP (1) JPS5588823A (es)
AR (1) AR218386A1 (es)
AU (1) AU526708B2 (es)
BR (1) BR7903993A (es)
CA (1) CA1127979A (es)
DE (1) DE2964601D1 (es)
ES (1) ES481848A1 (es)
IN (1) IN152316B (es)
MX (1) MX153874A (es)

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Also Published As

Publication number Publication date
AR218386A1 (es) 1980-05-30
JPS5744361B2 (es) 1982-09-21
DE2964601D1 (en) 1983-03-03
MX153874A (es) 1987-01-30
EP0013680A1 (en) 1980-08-06
US4194891A (en) 1980-03-25
JPS5588823A (en) 1980-07-04
BR7903993A (pt) 1980-07-08
EP0013680B1 (en) 1983-01-26
IN152316B (es) 1983-12-17
AU4831579A (en) 1980-07-03
AU526708B2 (en) 1983-01-27
CA1127979A (en) 1982-07-20

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