Claus sulfur rov qab catalyst cov cab kuj

Cov tshuaj tiv thaiv:

Cov txheej txheem Claus los hloov mus rau hauv theem pib sulfur los ntawm catalytic cov tshuaj tiv thaiv, nrog cov kev cuam tshuam tseem ceeb ua:

High - sov kub ua si:2hss + o₂ → 2h₂o + S₂ (ua tiav nyob rau hauv lub cub tawg)

Kev tshwm sim catalytic: H₂S + So₂ {{{{{{2} h₂o (ua tiav rau hauv lub txaj catalytic), yog qhov yuav tsum tau txhawb kev sib npaug thiab tus nqi.

Cov haujlwm tseem ceeb ntawm cov cab kuj:

Activated alumina provides a high specific surface area (>200 m² / g) thiab cov qauv xim thiab cov qauv zoo xws li al₂o₃ nws tus kheej lossis sio₂), txhim kho cov adsorption thiab cov tshuaj tiv thaiv kev ua haujlwm ntawm h₂s thiab so₂.

Ua kom Alumina tuaj yeem tiv taus ntau qhov kub (250- 400 degree) thiab sulfur lub zog ntawm kev tawg vim yog cov tub rog sulphent lossis cov neeg caij sov thermling.

- tus qauv qauv tsim

It adopts a macroporous (>50 nm) thiab mesoporous (2-50 nm) cov qauv sib xyaw nrog cov kab mob sulrusion thiab desenses rau hauv sulfur kua dej) thiab tiv thaiv cov sulfur ua kua) thiab tiv thaiv cov kab mob uas tsis ua haujlwm) thiab tiv thaiv cov pa thaiv cov kua ntoo) thiab tiv thaiv cov pa thaiv cov kua ntoo) thiab tiv thaiv cov pa thaiv cov kua ntoo) thiab tiv thaiv cov kab mob uas tsis ua haujlwm) thiab tiv thaiv cov pa thaiv cov kua ntoo) thiab tiv thaiv cov pa thaiv cov kua ntoo) thiab tiv thaiv cov pa thaiv cov kua ntoo) thiab tiv thaiv cov pa thaiv cov kua ntoo) thiab tiv thaiv cov kab mob uas tsis ua haujlwm) thiab tiv thaiv cov kab mob uas muaj kua.

{{0 {}} Cov txheej txheem nto deg:

Nruab nrab alkalinity nyob rau cov chaw nplooj nkoj (xws li qhia me me ntawm Naito thiab K₂o) tuaj yeem txhim kho qhov muaj peev xwm adsorption rau h₂s thiab txhawb nqa cov tshuaj catalytic. Yog hais tias cov roj nyoos muaj cov kua qaub xws li co₂, lub alkalinity yuav tsum tau tswj kom tiv thaiv cov carbonate tso tawm.

{{0 {}} anti -}}} sulfation hloov kho:

Nyob rau hauv lub siab - kub seem (300 {{300} 400} degree), activate kom muaj sulfate, ua rau kev ua kom tsis zoo. Los ntawm kev ntxiv cov quav ntxiv xws li tio₂ thiab zro₂ los ua cov muaj cov neeg nqa khoom (xws li al₂o₃- tiibited thiab high-kub ruaj khov yuav raug txhim kho.

- dej thiab cua sov agon resistance kev kho

Cov dej vapor tsim nyob rau hauv Claus cov kev tshuaj tiv thaiv yuav ua rau cov qauv peebsab ntawm cov neeg Alumina ua haujlwm thiab txo cov nplaim dej tshwj xeeb yog. Lub hydnothermal ruaj khov ntawm cov cab kuj tuaj yeem txhim kho los ntawm high- qhov ntsuas kub (xws li saum toj 1000 degree) lossis silicon (si) hloov kho.

Kho cov kua qaub roj tom qab ntuj ntawm cov roj desulfurization (nrog rau cov ntsiab lus ntawm 10% mus rau 90%), Flue roj los ntawm catalytic cracking kev tsim tawm hauv cov roj ntxiv.

Tus txheej txheem: cov kua qaub yog qee qhov oxidized hauv kev sib txuas ua ke kom ua rau cov khoom siv hluav taws xob ntxiv, nkag mus rau cov alumina carrier catalyst. Nyob rau hauv cov tshuaj catalytic ntawm 250-320 degree, keeb kwm ntawm cov tub rog ntoo yog tsim tawm, nrog tus neeg Sulfur rov qab txog 95% {%.

Cov pa roj acidic (muaj h₂s thiab co₂) tsim tawm los ntawm cov thee {}} hydrogen thiab thee} {}} cov txheej txheem methanol yog kho los ntawm cov qib Klaus. Cov Alumina Carrier catalyst tau txais txiaj ntsig zoo hloov zuj zus hauv qab ntawm COEXISTENTIAL ntawm kev tso pa.