Nyob rau hauv chav tsev sulfur rov qab, kev tswj qhov kub thiab txias ntawm Claus reactor yog qhov tseem ceeb, vim nws cuam tshuam ncaj qha rau kev ua haujlwm ntawm kev ua haujlwm thiab kev ruaj ntseg ntawm chav tsev.
Qhov kub thiab txias ntawm thawj reactor yog ua raws li kev ua kom tiav hydrolysis ntawm COS thiab CS₂.
COS + H₂O=H₂S + CO₂
CS₂ + H₂O=H₂S + CO₂
Cov tshuaj tiv thaiv tus nqi ntawm ob qhov kev cuam tshuam no yog tswj los ntawm kinetics, thiab tus nqi hydrolysis nce nrog qhov kub thiab txias. Tsuas yog thaum qhov ntsuas kub tsim nyog ntawm 316 txog 350℃tuaj yeem ua tiav hydrolysis tiav.
Qhov ntsuas kub rau qhov thib ob thiab thib peb reactors yuav tsum ua raws li cov hauv qab no:
2H₂S + SO₂=3S + 2H₂O
Cov tshuaj tiv thaiv no yog cov tshuaj tiv thaiv thermodynamic equilibrium thiab cov tshuaj tiv thaiv exothermic. Los ntawm qhov kev xav ntawm kinetics, cov tshuaj tiv thaiv tuaj yeem txiav txim siab. Qhov ntsuas kub qis dua, qhov sib npaug ntawm qhov hloov pauv ntau dua. Nyob rau hauv txoj kev xav, kev khiav hauj lwm kub ntawm qhov thib ob thiab thib peb reactors yuav tsum tau khaws cia saum toj no qhov dew point kub ntawm leej faj kom haum. Nyob rau tib lub sij hawm, xav txog capillary condensation ntawm leej faj, yuav tsum tau tsim kom muaj kev nyab xeeb ntawm kev khiav hauj lwm kub siab tshaj qhov sulfur dew point. Qhov ntsuas kub tau pom zoo yog 210 txog 250 degrees Celsius.