BE555920A - - Google Patents

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Publication number
BE555920A
BE555920A BE555920DA BE555920A BE 555920 A BE555920 A BE 555920A BE 555920D A BE555920D A BE 555920DA BE 555920 A BE555920 A BE 555920A
Authority
BE
Belgium
Prior art keywords
desc
substances
heating
adsorbent
adsorption
Prior art date
Application number
Other languages
French (fr)
Publication of BE555920A publication Critical patent/BE555920A/fr

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/02Separation 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
    • B01D53/04Separation 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
    • B01D53/0407Constructional details of adsorbing systems
    • B01D53/0438Cooling or heating systems
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/02Separation 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
    • B01D53/04Separation 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2253/00Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10Inorganic adsorbents
    • B01D2253/102Carbon
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2259/00Type of treatment
    • B01D2259/40Further details for adsorption processes and devices
    • B01D2259/401Further details for adsorption processes and devices using a single bed

Description

       

   <Desc/Clms Page number 1> 
 



   Il est   connu.-que   dans l'adsorption de substances val tiles à partir de gaz de   supporta   la   vapeur   d'eau conteane dans les gaz a   pour   effet de diminuer   nota blement   la charge d'adsprption. L'explication de ceci pourrait être   rapportée   
 EMI1.1 
 1. ¯e: r¯lsarption concomitLl1te de la vapeur cilee,,U, qui requiert peur elle une partie du volma8 des pores de l'adsorbant. 



  On a trouvé qLi'11 y a multi-olication de la charge ci' (sol.>¯,tlol1 lorsque Q:: n8 l' 2.ds orption de substances volü.Li1¯e: 1. .-rrir ;i;e gaz de support, on chauffe ladsorbent pendant l; dsor)tio.L1. Un chauffage à environ i-0-vU  C s'est 2.vÓré en 1"ôccLiir5nce favorable. Ln guise d'e::plicetion on pourrait fai- re   appel   à l'adsorption concomitante de la vapeur   d'eau   siphalée plus haut, qui pourrait éventuellement être réprinés 

 <Desc/Clms Page number 2> 

 
 EMI2.1 
 p: r le chauffage de l'adsorbant. Il n'est cependant guère plausible que d'jc. pour un chauffage relativement r -duitg il nuisse y avoir iultiplication de la charge c:,'è::dsorption. 



  -:XGr1Dle lùù moles/heure de gaz r--sic'u7,irOs à environ 1C-20  C ci' an:: fabrique chimique qui C OH l..iel1J.1el1 t en plus u'e -: g 0 g C 0 6G, do35 -.0, .0., entre autres environ 0,05 fiole de substances lil1Z<..d.LC;UeS vol<:iil es paru± lequelles il y a du benzene, du uhloroijensène:, du Llt110iJen:;.;è.L'),e, de l'aniline, de la toluidine, et ae 11 '.th:no1 , au Cl thanoljg sont d',03.1'rE!SS,S par une 1iqLi#:ar (.e lavage acculino cies ConSG1'GLIEIItS acides, puis traites au charbon actif, les substances orbcttaiCluCs 11 JL.1'Vtt.ü.l,i :'CcI.Llt C;l.m:L mà;->1- ,¯1.. ±Lix-1,#n;#i-i ils SUxi ' Cl-70uSS1c¯Y'¯ -s et cïÉn21111.1ss aans 
 EMI2.2 
 un lectrofiltre. Le dessin en annexe représente une telle ins- 
 EMI2.3 
 tallation.

   Ici les gaz r,'-.siÚu,,,,.:L.1.'-.;::i .a-¯,¯:4 l.J-:'" 1-., c¯,:".1.'.:lr..¯4,t i ....0;11, àii.oy"5 pur 1.:. icgiiiî#i'Geoî. 2 dans les laveurs 3 et li- 1' Ccordas en série où ils sont laves avec une liqueur ue lavage alcaline, par exemple en étiiu'i i'orcéb 3, ti,;; .,--=.,, 1. tLi.Los 1' , 'i,;, J (f.,i.1t les '.'.3.i.aLi,ï.LE:.r' GLl-;::r.4t:i .:.sl.¯c.1'1G..¯itls 710x1;E7nV dms la liqueur. Hn r.;8S de présence ae comaÍ'GuéJi1ts alcalins ü;xl5 lus gaz, on peut t:l,,\'; 0.1. ,-; n 1.. bL \,;c.Lli.... L-tJ.".

   E=,ià#1<:< :; 1.T' àQ :.,1'':..W CL<. ,V:':'é; "'..1.Jt;: ga7 ayant i c.fsL1 ç x..:..7. une '.23uJ:':."Lt 011 pl',.l;:;f.Jle somj alors chauffas dans le rocmuffeur 6 à -0-&G C, p.'r eleG171e au moyen du serpentin 7 1'aoli ,,<:J '.:¯-1,;c;o,;,.J.' ou ou v.L' C , . .'W (:l: ï,6003 Qui, CCu..úl':': c-ala est W ,.c .¯ jJ :.: u. :::t.C8 pourvu u',,'Ílettes, et les gaz ¯-'érCOUl'el1t 8L1SuÍte 1'::3 u.eux CLL;r;es 8 et 9 branch''es en parallèle ee 1. 'cour '"Le Cm,¯.r'u0,.1 c¯. Ci' 1 ci. 



  GUL.I...1 J.:.:û...::-:':::'c...'1 eDii2z'i 1'.....,.. ¯ ii '1',tlrai', liz )':'.:':':"03 ,;1#. à.-là> i'...'7p;reïllüt son'u avantageusement isolées, et en l'occurrenc.. on )3Qt noyer o.ans 1'isol'ni, un serpen'cin rempli a.1GL cl,>L-1-ù o-- ie vapeur ,.C',é:;..17¯c;S 1.. "Vl..<'. J.c -#1;;,.=<bon' :m.l..u.1 V1E1A-4 l' 'le ctroi i ltre 11, avec leCT;l'0'.:.G ionisante 12 

 <Desc/Clms Page number 3> 

 
 EMI3.1 
 et plaques séparatrices 13, qui p,.:t exemple pwuù (;tI'8 pl,;i.c,1 sa#> 1,. tour ,le Ciai lût1 ejctif 10. Les g<..1.z .'por:,.s 4Ll:LL \,r"Llt l'instillation pcr la tubulure (-le el ,charge 1N-.

   Ils peuvent <;ntre autres être utilisas pour le C1 lllT''v' de 1GL...l>..L,(y(e,- 1'.:.;il u : Cr::.'G :0: tout c.:,'ët001'':, ,'C-: !iis 1i :Ll.JÜutiOJ.l1l8lliE::üt pendant quelques mois sans le Ch"Llff2ge u.''.crit au charbon c.ctif. 4n l'occurrence on a obtenu aes 'GE:JL1J.yS de L-1 de 40 L bu heures é,'/8C des CL..1¯'(-"; du ge= de l..000 à 6 000 moles jusqu'à l'éj7uiseinent du charbon Lctif-1:1- près incorporation du dis   posicif   de chauffage pour le   charbon   actif, avec   lequel   le 
 EMI3.2 
 charbon est port: à une température de 40 à 50 C, la durée de .fonctionnement fait Lm bond jusqu'à environ 250 heures avec un û.üi"c de gaz de 25. (Gu ".olcs..1..J01':,qLl'C,Ü 1,ie"u le chauffage hors circuit, la puissance d'adsorption retombe à sa valeur initiale. 



   R E V E N D C A T I O N 
 EMI3.3 
 Pr'ocèd - ci'ê1Ù.SOI'p"Lion de substances volatiles à 

**ATTENTION** fin du champ DESC peut contenir debut de CLMS **.



   <Desc / Clms Page number 1>
 



   It is known that in the adsorption of valuable substances from carrier gases the water vapor contained in the gases has the effect of significantly reducing the adsorption load. The explanation for this could be reported
 EMI1.1
 1. ¯e: concomitant recovery of the air vapor ,, U, which requires for it part of the volume of the adsorbent pores.



  We have found that there is multi-olication of the charge ci '(sol.> ¯, tlol1 when Q :: n8 the 2.ds orption of substances volü.Li1¯e: 1..-Rrir; i; In the carrier gas, the adsorbent is heated during the dsor) tio.L1. Heating to about 1-O-VU C has been shown to be favorable. As an example, the concomitant adsorption of the water vapor siphaled above could be used. , which could possibly be reprimanded

 <Desc / Clms Page number 2>

 
 EMI2.1
 p: r heating the adsorbent. However, it is hardly plausible that of jc. for a relatively reduced heating there can be multiplication of the load c:, 'è :: dsorption.



  -: XGr1Dle lùù moles / hour of gas r - sic'u7, irOs at about 1C-20 C ci 'an :: chemical factory which C OH l..iel1J.1el1 t in addition to u'e -: g 0 g C 0 6G, do35 -.0, .0., Among others about 0.05 vial of substances lil1Z <.. d.LC; UeS vol <: it appeared ± which there is benzene, uhloroijensene :, du Llt110iJen:;.; È.L '), e, aniline, toluidine, and ae 11' .th: no1, at Cl thanoljg are of, 03.1'rE! SS, S by a 1iqLi #: ar (.e washing acculino cies ConSG1'GLIEIItS acids, then treated with activated carbon, the substances orbcttaiCluCs 11 JL.1'Vtt.ü.l, i: 'CcI.Llt C; lm: L mà; -> 1-, ¯1 .. ± Lix-1, # n; #ii they SUxi 'Cl-70uSS1c¯Y'¯ -s and cïÉn21111.1ss aans
 EMI2.2
 an electrostatic precipitator. The attached drawing represents such an ins-
 EMI2.3
 installation.

   Here the gases r, '-. SiÚu ,,,,.: L.1 .'-.; :: i .a-¯, ¯: 4 lJ-:' "1-., C¯,:". 1 . '.: lr..¯4, ti .... 0; 11, àii.oy "5 pure 1.:. icgiiiî # i'Geoî. 2 in washers 3 and li- 1' Ccordas in series where they are washed with an alkaline washing liquor, for example in etiiu'i i'orcéb 3, ti, ;;., - =. ,, 1. tLi.Los 1 ',' i,;, J (f., i.1t les'. '. 3.i.aLi, ï.LE: .r' GLl -; :: r.4t: i.:. sl.¯c.1'1G..¯itls 710x1; E7nV dms liquor. Hn r.; 8S presence of alkaline comaÍ'GuéJi1ts ü; xl5 lus gas, we can t: l ,, \ '; 0.1., -; n 1 .. bL \ ,; c.Lli ... . L-tJ. ".

   E =, i to # 1 <: <:; 1.T 'àQ:., 1' ': .. W CL <. , V: ':' é; "'..1.Jt ;: ga7 having i c.fsL1 ç x ..: .. 7. A' .23uJ: ':." Lt 011 pl',. L;:; f.Jle somj then heat in the rocmuffeur 6 to -0- & G C, p.'r eleG171e by means of the coil 7 1'aoli ,, <: J '.: ¯-1,; c; o,;,. J.' or or v. L 'C,. .'W (: l: ï, 6003 Qui, CCu..úl ':': c-ala is W, .c .¯ jJ:.: U. ::: t.C8 provided u ',,' Ílettes, and the gases ¯-'érCOUl'el1t 8L1SuÍte 1 ':: 3 u.eux CLL; r; es 8 and 9 connected in parallel ee 1.' court '"The Cm, ¯.r'u0, .1 c¯. Ci '1 ci.



  GUL.I ... 1 J.:.:û...::-:':::'c...'1 eDii2z'i 1 '....., .. ¯ ii' 1 ', tlrai ', liz)': '.:': ': "03,; 1 #. à.-là> i' ... '7p; reïllüt are advantageously isolated, and in this case .. on) 3Qt walnut o.ans 1'isol'ni, a serpen'cin filled with a.1GL cl,> L-1-ù o-- ie vapor, .C ', é:; .. 17¯c; S 1 .. "Vl .. <'. J.c - # 1 ;;,. = <Bon ': m.l..u.1 V1E1A-4 l' 'le ctroi i ltre 11, avec leCT; l'0'.:. G ionizing 12

 <Desc / Clms Page number 3>

 
 EMI3.1
 and separating plates 13, which p,.: t example pwuù (; tI'8 pl,; ic, 1 sa #> 1 ,. turn, the Ciai lût1 ejctif 10. The g <.. 1.z .'por: , .s 4Ll: LL \, r "Llt instillation pcr tubing (-le el, load 1N-.

   They can be used for the C1 lllT''v 'of 1GL ... l> .. L, (y (e, - 1'.:.; Il u: Cr ::. 'G: 0 : all c.:,'ët001 '' :, 'C-:! iis 1i: Ll.JÜutiOJ.l1l8lliE :: üt for a few months without the Ch "Llff2ge u.' '. charcoal crit c.ctif. 4n the occurrence was obtained aes' GE: JL1J.yS of L-1 of 40 L bu hours é, '/ 8C of CL..1¯' (- "; of ge = from l..000 to 6000 moles until Lctif-1 is exhausted: 1- after incorporation of the heating device for the activated carbon, with which the
 EMI3.2
 coal is worn: at a temperature of 40 to 50 C, the operating time jumps up to about 250 hours with a û.üi "c of gas of 25. (Gu" .olcs..1..J01 ':, qLl'C, Ü 1, ie "u with the heating switched off, the adsorption power falls back to its initial value.



   R E V E N D C A T I O N
 EMI3.3
 Pr'ocèd - ci'ê1Ù.SOI'p "Lion of volatile substances to

** ATTENTION ** end of DESC field can contain start of CLMS **.


    

Claims (1)

partir de gaz de support, caractérisé en ce que l'adsorbant est chauffe au coursde l'adsorption. **ATTENTION** fin du champ CLMS peut contenir debut de DESC **. from carrier gas, characterized in that the adsorbent is heated during adsorption. ** CAUTION ** end of field CLMS may contain start of DESC **.
BE555920D BE555920A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0024595A1 (en) * 1979-08-30 1981-03-11 Linde Aktiengesellschaft Process for removing mists of lubricants and vapours of lubricants from a gaseous stream

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0024595A1 (en) * 1979-08-30 1981-03-11 Linde Aktiengesellschaft Process for removing mists of lubricants and vapours of lubricants from a gaseous stream

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