Hobaneng ha Alumina e Kentsoe e le Bohlokoa Ts'ebetsong ea ho Pholisa Sebabole sa Claus?
Li-catalyst tsa alumina tse sebelisitsoeng ho Claus Sulfur Recovery Units li emela lihlopha tsa khale ka ho fetisisa le tse sebelisoang haholo bakeng sa ts'ebeliso ena. Alumina e phahameng{{1}e hloekisitsoeng e hloekile e susumetsa karabelo lipakeng tsa hydrogen sulfide (H2S) le sulfur dioxide (SO2) ho hlahisa elemental sulfur (S), ha ka nako e le 'ngoe e khothalletsa hydrolysis ea sulphur-e nang le-lihlahisoa tse kang carbonyl sulfide (COS) le carbon disulfide (CS2), ka hona ho matlafatsa sekhahla sa ho hlaphoheloa sebabole.
Clause Process Sulfur Recovery ke Eng?
Ts'ebetso ea Claus ke e 'ngoe ea mekhoa e sebelisoang ka ho fetesisa ea ho khutlisa sebabole indastering ea sejoale-joale. E sebelisoa haholo ho fetolela khase e nang le asiti e nang le H2S into elemental S, ha e ntse e fokotsa tšilafalo ea tikoloho e bakoang ke tlhahiso e tobileng ea sulfide. Mokhoa oa Clause oa ho khutlisa sebabole o sebetsa maemong a fapaneng a indasteri a hlahisang bongata bo boholo ba likhase tse nang le asiti{1}e kang:
* Lisebelisoa tsa oli: ho khutlisa sebabole ho likhase tsa asiti tse hlahisoang nakong ea lits'ebetso tsa tlhoekiso;
* Ts'ebetso ea khase ea tlhaho: ho phekola likhase tsa acid tse hlahisoang nakong ea khase ea tlhaho ea desulfurization;
* Indasteri ea lik'hemik'hale tsa mashala: ho phekola sebabole-e nang le likhase tse nang le asiti tse hlahisoang nakong ea khase ea mashala le tlhoekiso ea syngas;
* Indasteri ea ho pheha: ho fetola hydrogen sulfide ka khase ea ontong ea coke hore e be sebabole sa mantlha;
* Indasteri ea petrochemical: ho khutlisa sebabole ho tsoa ho H2S{0}e nang le likhase tsa tšebetso;
* Liindasteri tse amanang le Sulfide-: ho sebetsana le sulphur-e nang le litšila tse tsoang sulfuric acid, viscose, le chemical fibers.
Alumina Catalyst e behiloe Hokae Ts'ebetsong ea Clause?
Mokhoa o tloaelehileng oa ho khutlisa sebabole oa Claus o kenyelletsa sistimi ea phepelo ea khase ea asiti, sebopi sa khase ea asiti, liboiler tsa mocheso oa litšila, li-condenser tsa sebabole, li-reactor tsa Claus, le mokoti oa pokello ea sebabole kapa tanka ea sebabole.
Karabelo ea mantlha ea ts'ebetso ea Claus ke karabelo lipakeng tsa H2S le SO2ho hlahisa sebabole sa motheo. Ha e le hantle, karolo ea H2S e qala ho chesoa ho hlahisa SO2; sephetho sa SO2ebe e arabela le H2S ka lebaka la ts'ebetso-ea Clause reaction-ho hlahisa mouoane oa sebabole, o hlahisang sebabole sa metsi ha se tsidifala.
Ka hona,Claus alumina catalystsli sebelisoa haholo ho li-catalytic reactors. 'Me libethe tse tloaelehileng tsa liindasteri tsa Claus hangata li sebelisa alumina e kentsoeng.
Mesebetsi ea Alumina Catalyst e kentsoeng ts'ebetsong ea Clause
Ho susumetsa karabelo ea mantlha ea Claus. Ena ke mosebetsi oa bohlokoa ka ho fetisisa! Ntle le ts'ebetso, sekhahla sa karabelo lipakeng tsa H2S le SO2e batla e le butle; Leha ho le joalo, alumina e kentsoeng e fana ka libaka tse ngata tse sebetsang ka holim'a metsi, e leng se nolofalletsang karabelo ho atamela tekano ka potlako mocheso o amohelehang indastering.
Ho susumetsa COS hydrolysis. Ho phaella ho H2S, khase ea asiti hangata e na le CO2, li- hydrocarbon, le likaroloana tse nyenyane tsa organic sulfide. Seboping sa thermal reaction, sulfur e 'ngoe-e nang le metsoako ea lintho tse phelang e theha COS le CS.2. Alumina e kentsoeng e thusa phetoho ea sebabole ka har'a COS ho khutlela ho H2S, ho e lumella ho kena tsamaisong ea Clause reaction; sena se bohlokoa bakeng sa ho eketsa sekhahla sa ho hlaphoheloa ha sebabole.
Ho susumetsa CS2hydrolysis. CS2ke sehlahisoa sa ho ameha ka ho khetheha ts'ebetsong ea Claus. Hydrolysis ea CS2e fetola sebabole se ka har'a molek'hule ho khutlela ho H2S, ho e nolofalletsa ho nka karolo ho latela maikutlo a Claus; ona ke mosebetsi o mong oa bohlokoa oa li-catalyst tsa alumina tse kentsoeng.
Hobaneng ha Alumina e kentsoeng e hlokahala ho Pholiso ea Sebabole ea Claus?
Bakeng sa li-alumina{{0}li-catalysts tsa Claus, senotlolo ha se feela ho holisa Al2O3dikahare. Ho e-na le hoo, e hloka ntlafatso e felletseng ea sebaka se itseng sa bokaholimo, sebopeho sa pore, tšebetso ea bokaholimo, le ho hanyetsa ho koala.
Ho latela boholo bo fapaneng ba limolek'hule tsa H2S, SO2, COS, CS2, le H2O-le taba ea hore maikutlo a Clause a ama ho ata ha-karolo ea likhase tse ngata ka har'a likaroloana tsa catalyst-taolo ea boholo ba pore ke ea bohlokoa. Haeba li-pores li le nyane haholo, ho ata ha li-reactant hoa sitisoa, 'me ho hanyetsa ho ata ha ka hare hoa eketseha, ho thibela tšebeliso e feletseng ea libaka tse sebetsang ka har'a catalyst. Ka lehlakoreng le leng, haeba li-pores li le kholo haholo, palo ea libaka tse sebetsang e fokotseha. Ka lebaka leo, li-catalyst tsa Clause tsa indasteri li hloka kabo ea boholo ba pore e entsoeng ka mokhoa o ikhethileng, 'me alumina e kentsoeng e ka fana ka thepa e hlokahalang ea holim'a metsi le meaho ea pore ho fihlela litlhoko tsena.
Sinmat Chemicale fana ka bohloeki- bo phahamengketsiso ya alumina e kentswengka ho khetheha bakeng sa Claus ho hlaphoheloa sebabole. Bakeng sa lintlha tse ling, ka kopo sheba hoalumina e kentsoengsehlopha sa lihlahisoa.
