Kungani I-Alumina Icushiwe Ibalulekile Enqubweni Yokubuyisela I-Claus Sulfur?
Ama-alumina catalysts aqashwe ku-Claus Sulfur Recovery Units amelela isigaba sakudala nesisetshenziswa kabanzi sama-catalyst kulolu hlelo lokusebenza. -ubumsulwa obuphezulu be-alumina obucushiwe budala ukusabela phakathi kwe-hydrogen sulfide (H2S) kanye ne-sulphur dioxide (SO2) ukukhiqiza i-elemental sulfur (S), kuyilapho ngasikhathi sinye iphromotha i-hydrolysis yesibabule-equkethe{1}}imikhiqizo efana ne-carbonyl sulfide (COS) kanye ne-carbon disulfide (CS2), ngaleyo ndlela kuthuthukisa izinga lokutholwa kwesibabule.
Iyini iClaus Process Recovery Sulfur?
Inqubo kaClaus ingenye yezindlela zobuchwepheshe ezisetshenziswa kakhulu zokubuyisela isibabule embonini yesimanje. Isetshenziswa kakhulu ukuguqula igesi ene-asidi equkethe i-H2S ibe yi-elemental S, kuyilapho kunciphisa ukungcoliswa kwemvelo okubangelwa ukukhishwa okuqondile kwama-sulfide. Inqubo kaClaus yokutholwa kwesibabule isebenza ezimeni ezihlukahlukene zezimboni ezikhiqiza inani elikhulu lamagesi e-asidi esibabule{1}eziphethe, njengalezi:
* Izihlungi zikawoyela: ukubuyisela isibabule emagesini e-asidi akhiqizwa ngesikhathi sokucwengwa;
* Ukucutshungulwa kwegesi yemvelo: ukwelapha amagesi ane-asidi akhiqizwa ngesikhathi sokuchithwa kwegesi yemvelo;
* Imboni yamakhemikhali wamalahle: ukwelapha isibabule-okuthwala amagesi ane-asidi akhiqizwa ngesikhathi sokwenziwa kwamalahle kanye nokuhlanzwa kwe-syngas;
* Imboni yokupheka: ukuguqula i-hydrogen sulfide kugesi ye-coke oven ibe isibabule esiyisisekelo;
* Imboni ye-Petrochemical: ukubuyisela isulfure ku-H2S-equkethe amagesi enqubo;
* Izimboni ezihlobene ne-Sulfide-: ukubhekana nesulfure{1}}equkethe amagesi alahlwayo asuka ku-sulfuric acid, viscose, kanye nemicu yamakhemikhali.
Ingabe I-Alumina Catalyst Ibekwe Kuphi Inqubo YeClaus?
Iyunithi ejwayelekile yenqubo kaClaus yokutholwa kwesibabule ihlanganisa isistimu yokuphakela kwegesi ene-asidi, isithando somlilo esine-asidi, ibhoyili yokushisa imfucumfucu, amakhonsathi esibabule, ama-Claus catalytic reactors, kanye nomgodi wokuqoqa isibabule uketshezi noma ithangi le-sulphur seal.
Ukusabela okuyinhloko kwenqubo kaClaus ukusabela phakathi kuka-H2S kanye SO2ukukhiqiza isibabule esiyisisekelo. Empeleni, ingxenye ye-H2I-S iqala ukushiswa ukuze ikhiqize i-SO2; umphumela we-SO2bese isabela no-H osele2S phezu kwe-catalyst-ukusabela kukaClaus{1}}ukukhiqiza umhwamuko wesulfure, okhipha isibabule esiwuketshezi lapho kupholisa.
Ngakho-ke,I-Claus alumina catalystszisetshenziswa ngokuyinhloko kulawa ma-catalytic reactors. Futhi imibhede evamile ye-Claus catalyst yemboni ngokuvamile isebenzisa i-alumina ecushiwe.
Imisebenzi Ye-Alumina Catalyst Ecushiwe Kunqubo YeClaus
Ivuselela ukusabela kukaClaus okuyinhloko. Lona umsebenzi obaluleke kakhulu! Ngaphandle kwe-catalyst, izinga lokusabela phakathi kwe-H2S kanye SO2ihamba kancane; Nokho, i-alumina ecushiwe inikeza amasayithi amaningi angaphezulu asebenzayo, okwenza ukusabela kufinyelele ngokushesha ekulinganeni emazingeni okushisa amukelekayo ezimbonini.
I-Catalyzing COS hydrolysis. Ngaphezu kwe-H2S, igesi ye-asidi ngokuvamile iqukethe i-CO2, ama-hydrocarbon, nenani elincane lama-organic sulfide. Esithandweni somlilo esishisayo, enye i-sulphur{1}}equkethe izinhlanganisela zezinto eziphilayo zakha i-COS ne-CS.2. I-alumina ecushiwe yenza ukuguqulwa kwesibabule ngaphakathi kwe-COS kubuyele ku-H2S, ukuyivumela ukuthi ingene ohlelweni lokusabela kukaClaus; lokhu kubalulekile ekwandiseni inani eliphelele lokutholwa kwesibabule.
I-Catalyzing CS2i-hydrolysis. CS2kuwumkhiqizo okhathazayo othile ohlelweni lukaClaus. I-Hydrolysis ye-CS2iguqula isulfure equkethwe ku-molecule ibuyele ku-H2S, ukuyivumela ukuthi ibambe iqhaza ekuphenduleni kukaClaus; lona omunye umsebenzi obalulekile wama-catalyst e-alumina acushiwe.
Kungani I-Alumina Ecushiwe Idingeka Ekubuyiseleni I-Claus Sulfur?
Ku-alumina{{0}okusekelwe ku-Claus catalysts, ukhiye awukona nje ukukhulisa i-Al2O3okuqukethwe. Esikhundleni salokho, idinga ukulungiselelwa okuphelele kwendawo ethile engaphezulu, ukwakheka kwezimbotshana, umsebenzi ongaphezulu, nokumelana nokuvalwa.
Uma kubhekwa amasayizi ama-molecular ahlukahlukene we-H2S, SO2, COS, CS2, kanye H2O-kanye neqiniso lokuthi ukusabela kukaClaus kuhilela ukusakazeka-kwamagesi ezingxenye eziningi ngaphakathi kwezinhlayiya ze-catalyst-ukulawulwa kosayizi wezimbotshana kubalulekile. Uma izimbotshana zizincane kakhulu, ukusabela okusabelayo kuyavinjwa futhi ukumelana nokusabalalisa kwangaphakathi kuyanda, okuvimbela ukusetshenziswa okugcwele kwamasayithi asebenzayo ngaphakathi kwe-catalyst. Ngokuphambene, uma izimbotshana zizinkulu kakhulu, inani lamasayithi asebenzayo liyancipha. Ngakho-ke, ama-industrial Claus catalysts adinga ukusatshalaliswa kosayizi wezimbotshana oklanywe ngokukhethekile, futhi i-alumina ecushiwe inganikeza izakhiwo ezidingekayo ezingaphezulu kanye nezakhiwo zezimbotshana ukuze kuhlangatshezwane nalezi zidingo.
I-Sinmat Chemicalinikeza ubumsulwa obuphezulu{0}obuphezului-alumina catalyst ecushiweikakhulukazi uClaus inqubo yokubuyisela isibabule. Ukuze uthole imininingwane eyengeziwe, sicela ubheke kui-alumina ecushiweisigaba somkhiqizo.
