DEP0035151DA - Method and device for removing cyanide and hydrogen sulfide from carbon distillation gases - Google Patents

Description

PATENT LAWYERS
DIPL.-ΙΝΘ. JOHANNES FRITZE

HAMBUR6

DIPL.-CHEM. DR. WERNER KOCH

MUNICH

HAMBUR64 MUNICH 27 SIMON-VON-UTRECHT-STRASSE 43 KOLBERSERSTRASSEO FERNRUF 429955 FERNRUF 48 1117

Your message from our sign Munich

REGARDS

3 5 151 iY

Ges-ellaeHßift with Tiaestrictions03? Liability, Hamburg · - '■

umä ¥ 0 j? i ^a l «litung aar ISötföiwaag von-

töff from Echleoaestillailons ssuxa, i * at «ftt ·«, {'B-ä & fmtmmielamm ρ 21

new haujjtpat-eutü «« »(i- ^ t <.at \ -aiifiG.lduii _v :; y Zl 212) is do VürXaiiVfcn;: / ui- Jiitiemv.rQ from vjiaii-imii Jchvvcifelvjaysjeri.tofi au0 KoIilcmiof.; 1 ;: U.lcit.aOi.tv ';, ai.iuti ml .ι, οΪβ eieenoxyflUaJl.ti-oi ^1. '& - ,. böü ί · Λ? Ί device aii twiner (-urchfLihruag, i- ^! Ie, .oluiguu ^ '/ ο, ιι den tUic;: - \.' iinüG] itou rseutand = · share ex-fol ^ t 'iunaoU ' t \ vi.i * tc;> iied © i »en ütui'ün. Yn d & r oi-ateii Jttii'e (., ·. «.üi ige r 1) * =, ii \ l üox ¹ Cj / anwai-aerütori 'beueiti ^ t» ± i \ ^ v ^ ₁ .ei th (-. some 2) flor ^ ciiwci'iilv-iii.s.efü'fc.toff -ojjd Iu fs tr t-.ivBtsn. (^ einiß «r 3) du- unused LuftöauerBtioui udoi * niel * t be, iieit1, 'i'teär sulfur-Vfa = .; i3cri3to ΐ i "»

Db. ^l iat s1cV) min ce: eifits <Ui;> o veraühiedena ^ iiiuttinde itself at Λβτ ; ^ o Vci'ff; Uj.OjiS Bach item Ijuuytya'lüiit al β ί) βί> 0Ώ!. 'ίοϊ · ο zweclc · - huui'-n »<·; · ϋ · ist üat ·, Miaaer ^ tihuXt a ^ r i-.u: se and their

öi-iuJi. ^ en eier:.: ari: e i'iir u ₄ y £ oiwaBser £ to33 'and ^ tiokoscyä (first

) Is besoiidex'ti fcut _s wonii TIIE possible snarls jat and it ^ o 'to 4o; 4 ^7; ötiser entiv "; lt _e Als roniiaktöuijutana ί'Οϊ * the partial oxidation of the.: chviefalv _; a £ (i" 5 '"- i * ötfii. * XB (ßioitü ivfcufe). is si © äugegea g uetionÄers effectoEüU» wera ¹ : öio oinernuit »jiieüt so moist eats j arid ere reöits she may riuc'U aiaht cu dry aein« L-er.-a- Fr ^ r ^ olialt der mass Ijötx-asst l »üi üieε«! "'iGini ^ unirsetufe avjecl & aümäiö BiiKdösteuB 5> and. at most about 15 % i & 2o ^ * Also the complete Beeciti ^ ung iiea öauer * = etüi'i'a IjSW ₃ dos Schvsexoiwiütiatretoffs iü ilwi * drition! : aase _t die uenselboki i.'inae .'- t = - and t as dio in the -second utui'e has *

Also plays Ctex , which is the iatr.aa for lie

lb ί Hlld bd d

p g

sslbeift ύίύο iTi'oeae Halle _t «nd sviar bee & tidera dat \ n« what you very much POSTSCHECK: HAMBUR (J 147607. BANK. HANSABANK, DEP.-KASSE 20, TELEGRAMME: SPECHTZIES HAMBURG

is grainy * Do you use a? B * the egg oxide-containing cleaning rooms® clay of the usual texture and moisture ₉ ep result in sioh. Difficulties insofar as "in the next inventive sulphidation of the manse in the first Heiniger stage the initially relatively good gas permeability deteriorates in the further course." Water ν © * - steams * the dam aueaiamen with the activated water in the not yet reacted, otherwise cold mass, which is still cold as a result, and strongly 'impedes the passage of water' during the subsequent use of the sulphided cheese for the removal of the water Gyanwaaser & toiies the gas permeability is considerably impaired _t if it eats too fine-grained and if it is enriched with ferro cyanides *

Even with the second disqualification level, it was possible. Difficulties "with the gas permeability arise" if one uses measures in the usual fine-grained quality and with the usual moisture content of 4o * 5o $ "

To overcome these difficulties, the invention proposes to agglomerate the small pieces and to agglomerate them into a piece of about 1 to in size which is particularly suitable for the present process 2 mm 3u bring «This can happen κ, Β« J in this way? that ordinary iron oxide containing jieinigun ^ amaase is briquetted and then the briquettes are chopped up into pieces of the desired örcäsee » With a mass of, for example, 1 - 2 mm Koiiigröeee the pressure drop is extremely low ^ and ei? remains ea even if that at the sulphidation evaporating water in the mass condenses again and when ßlch enriches the mass with cyan and sulfur »

So that the hatred in the strongly exothermic course of the invention at higher temperatures before Eunehiaendeii second

nigungsstufe does not dry out and then vollkoßimen ineffective _f According to the invention it is proposed "that Gaa before this step until the required zn en Beaktionstemperatür voii 3o to 5o ° 6 ssu saturate with water vapor";

This canoe * B _e happen ^ in. Such a way that the gas is passed lurm through a container filled with Rasohigringen "the one sprinkled with warm water Zweckmäsaig one vorwendet for irrigating the ammontakhaltigei aqueous condensate obtained 'with indirect cooling of the erfindungageiaäss purified Sases is "A particularly suitable for the first cleaning stage mass can be a # B _e also manufacture so" by crystallized ferrous sulphate β ΐ © (S0 \) "Io HgO *. cuddles in-his own Sriatallwasser and dehydrated something "and one that then the erkaltetet glaeääge sulphate zn pieces of 1 X * 2 mm Grosse about · crushed The thus prepared three he;? roßulfat treating it" weckmässig with the erfindungegemäsEä purified gas _s the is strongly containing ammonia and wherein the check sulfate in a similar manner lumpy iron ₉ * · _'f converts the mass eioh especially for the first Keinigungeetufe' suboxide containing suitable "

For the execution of the procedure in the rosette, a device has proven to be ssweokm & ssig * as it does the adjoining chalice. nung evidenced

The device consists of three successive die included _e se similarly constructed cylindrical cleaners t _t II and HI ₉ The au-cleaning Kohlendeatillatioiisgas first canceled by the cleaner I ". It enters this cleaner at 1 and then goes into the cylindrical container S _8, which it leaves again through the slits. "Then it crosses the cylindrical container:". Coat · * room 4 $ in which the vision length 5 is located _s the optional? indirect heating or cooling dee & ases is used and

. with Öaiapf oct-tr Riibimf »» ©! * spttet » kmn» The f «najisyatw at t & tmm is« MMreh äse f & tamemttejr ί su a®0s®n su feotvtoQ & tairen »Öas is® wifA iipsn duroli ims- Sofefe f in Al«

8 "9-and I" g * lelt * t * * i "with * rfii & Aungäg Ha« e · £ * fuix.t .eindf «nt oils da» ^ a® petalitl iwra © to © »naeh

i fc 'flatin ti # def · iß. the 02rlind | fi? isetieit Maa-

, 1X sasssapiti * $ @ t Qhmm like tltr la & ielffa & m 4 «nacii g« t ieoiierl iit «II» in Mmn 11 eieh m bsi 12 '- «bflii> e9tt *.

The ßaa ve.rXäeat. Äea Heiniger I duroii. dae Bohr Ij wnd <ile pexrstui * teeniu'.ißit ilen! Efcermoinete * '14 geiaes ^ @ E VJferätn «Auf. ββΐΐϊβω fieiteipea f-ega & nm Ileteigfir II äuarohetrieicht the © as jsu-

w %% Waess ^ ciawpf © liwä'wat and ge © & ttigt wstdßn. canoe «Bi © steam» asa exit from this B ^ lialter dxirfih the Vorriclitimg i6 kaiityallitif'fcar * B & b § & b © tTümt äanao'h duych aa «3 Bohr 17 in t # a

g «B.am ®o Iiöii®t3? ui» iii is wis «lar Seine Ϊ» imä Seinigar Ιϊί *

of the three Beisiigey is rait Voxriehtugeu ¥ ör * äer gasöhilcttT * · Art vex ^ uhgn »di © a © possible» saturate the iatiä® with Bampf eu & iiit? © s also iiiäii'elit : m efwiswea öd «» »u ktüilsai

lil5ra'J © B wal ^ Xw ^ ias for dia different bei *

giia: · oyfelgt in dtr W # i © e _g datis iiussäqimt {II®

dee heights »Mie ^ -Gehialte ^ d» s Ο & οθο gfelit the Smlfidiaanmg

? 4 $ ftfeitü l fitt from

Waseer 'flieii aafö de * etiiekig © »Haase uafeeb, iivl«> j? T from ·

falling of the grass is and remains low even when _f * DI® mass in a non übliohen layer height up to U m in the chambers 89 and 9 wirdg 1 © * verwwte and w®nn the 0AS with hitherto customary nioht Sesehwiadigktit to au 3o wm / mo * & tß läaese flows through * after the sulphidation has taken place, the lasse in the cleaner J cools down again «The gas then leaves this chamber at approximately the same temperature _s at which it entered *, namely at around 15 * 25 ^° C

2UR commissioning of ßeinigers 11 dim Sas is Cue much Iftift mixed as sur partial oxidation of H "S 8 and il _o O erforderlieh is" For the Hasse to the required Bealctionstem · »· ptratur of 4 © *> 5ß ° E and the correct water content of »5 *

m bringenβ the gas is heated indirectly sunächst "Did di @ Mass® off the right temperature angenorom © n _s i 'ill indirectly © B © · heating and Üjrwäramag directly dureh sprinkling dea gas with warm _s anmoniakhaltigen condensate continued," Bin © saturation the gas with Was0 "rdsoBpf to the dew point of about 3o - 4 ° 0 © sufficient in the cone ₉ to protect the Mass © in the cleaner IX from drying out and becoming inactive au prevent the same"

If the Seine II is fully in operation @ then it leaves it (yes with ®iner about 2o - 3q ° CJ higher temperature ^ with @ about 6 © * Iq ⁰ G * it is voi * the Heiniger III back to 3o · 40 ° 0 ge «· cools and passes through this normally with approximately the same»! Emperatua? * In the Beiniger 111 the © as bsw »die lasse in the cone is not as strong as in the cleaner Xt _$ because it only g®l @ Gentle * and we only look active if the gas has not been cleaned of HgS in some II aisle or if it still contains oxygen «

The finished cleaned © as is then cooled to room temperature and the ammonia or other components (BenztX) in the well-known W @ is <s

with tea steamer suffered "!" on it · abeehleaenp xaa. @ & al © gas um ^ © mftf ©? i3e? s *
Sntt & Xt <$ & © KoblttiiwtillftiloiiBgee more al «X © g fij $ / w? $ M es ^ tooäisig ₈ You partial« Oxidation ö @ i3 4 Sea Hawptpatente © 0tufe »w% ©« _t »ßd &» äi * in

on the 3w # tliges einaclßsa ÖluföÄ distributed vm &

inäirelct «cooling ü $ s öassee gswlfolien <| © n stages voixenf'J _f m« a! 33rd, tasi «tlrie» femporataya »rose« ttf ^ totr ft lsi® JLgo ^ Q en verneideö * Jn 8 © liih # m fallle wiyd © 1b © SättigWig öS®ü 0a @ ^ @ with Jiampf only in front of the er & teu Oxyäatlonsstwfe α «ϊι, νο * Äem Heiaigt *" II

If tine awe fe-pletaXXlsiQrt ^ m ferröemXfat lier ^ mnä®t ₉ so iet es gw ^ ekmäaelgs di ©? Orte # handXtjiiig des näß geetüefcgltea SuXfats mit gerelnlgttmi AnmoaiA; Gas in fötwffl bttoudeirea None vorsutittoaeaj ä®r betwi & ch.B% als Xtt «- ter behind cli © 'dtorigea lielmiges ¹ getsebaXtet vjI ^ h unä der then

Äer lace® was for cleaning <i «s guests Stlekoxyd ^ Xe« r @ t © r geeolialtet u «4 to ge & QhiXd9X "tes. Wflse in operation {

Claims (6)

f 55151 I? V26 & D New 1) Method jsur removal of hydrogen cyanide _t nitric oxide Scshwefelwass-RSTOFF from ICohlenäeetillationsgasen according to the main patent, "mm **« «(Patent Application ρ 21 212) * characterized galena aeiehnetg that the first taking place .Cleaning the gas Yon hydrogen cyanide and Sticfeoxyd aittele a particularly g 3 © «* 4 © ^ Wasaea * containing agglomerated ^ n In some cases I "to 2 bob grain size in the case of lichen Sfempei ^ atures (15 ** 23 ⁰ Q) You take the fact that the following elimination of the sulfur waeeer @ t © ffθ under air flow by means of a little feuehteni 5« · 15 $ water containing mass at a higher 3? temperature Οθ * ·? © ^e 6) durohfühyt, 2) Method according to claim 1 * characterized * that maa the DeBtillationsgas up to e.u. the iüemperatur with iasserdaiapf l> which is responsible for the separation of oxyhydrogen and nitric oxide, sulfuric hydrogen. will _e 3) Method according to claim%% tu 2 _g characterized in that _f if uae gas contains more than If » gr HgS / cbm» before entry into the wide Ilei & igea? A one-time saturation with awf de »Saupuntet foa 4 © fei © 5 © 0 takes place and after d @ a through the Heinigex · * before d @ a entry into the third» aries cools down on this temperature. 4) Yerfahre »/ according to claim 1 hie 3 $ characterized * that matt dig saturation of the £ aee, s with water vapor by sprinkling with watery? aaraaoiiiak-containing »condensate carried out § that is obtained during the cooling of the cleaned & ases« f) drive ». according to claims 1 to 4 «in that one agglutinate» ized fieinigungBmasae 6) Method according to claim 1 "to 5 # gekennssetcluiet by the yer" / ^ © adu «g an aglomerized Heinigun ^ saiaase, which iieinigun ^ öiftaea © land by briquetting of briquetting d ^ r Brikeijte au Stüoke" from 3rd Tuis 2 iam GrBsso is made « T) Method according to spoke 3, up to 5, characterized in that "an agglomerated purification compound is used" which is made from crystallized material Iadem the Suli'at melted ^ partially entivaosert "after the development to StUoken from 1 to 2 mm Q-red sericleinert cu.d with ammonia-containing S & hleadstillstionsgas awectemassig in a Tseson * whose legi ^^ r is present" θ) device »ar BurchfÜJteyag de © Veriahrejxo according to claim 1 to 7 $ characterized by gylindrieohee after auastsn wary oiled container, which contain several ufce * mutually arranged _f with cleaning masae filled! .altern (8 _f 9t Io)"