Ib tug loj npaum li cas ntawm dispersed asphalt fume nrog ib tug concentration ntawm 5-7mg / m ~ 3 yog tsim thaum lub sij hawm zus tau tej cov txheej txheem ntawm cov carbon rhiav ntawm lub alumina cog.Yog tias nws raug tso tawm ncaj qha, nws yuav muaj kev cuam tshuam loj rau ib puag ncig thiab cov neeg ua haujlwm hauv lub Hoobkas.Lub hom phiaj ntawm qhov pitch fume, me me particle calcined coke yog siv los nqus thiab purify nws, thiab saturated calcined coke yog regenerated los ntawm thermal regeneration method.

Ua ntej, cov txheej txheem adsorption ntawm calcined coke tau kawm, thiab cov teebmeem ntawm adsorption kub, pitch fume concentration, qhov chaw tshaj tawm thiab qhov loj me me ntawm calcined coke ntawm cov nyhuv adsorption ntawm calcined coke raug tshuaj xyuas.Cov txiaj ntsig kev tshawb fawb pom tau tias tus nqi ntawm pitch fume adsorbed los ntawm calcined coke nce nrog qhov nce ntawm inlet concentration ntawm pitch fume.Qhov chaw qis qis, qhov kub tsis tshua muaj, thiab cov khoom me me yog txhua yam zoo rau cov adsorption ntawm pitch fume los ntawm calcined coke.Lub adsorption thermodynamics ntawm calcined coke tau kawm, uas qhia tau hais tias cov txheej txheem adsorption yog lub cev adsorption.Lub regression ntawm adsorption isotherm qhia tau hais tias cov txheej txheem adsorption ua raws li Langmuir kab zauv.

Thib ob, cua sov regeneration thiab condensation rov qab ntawm saturated calcined coke.Cov kev cuam tshuam ntawm cov cab kuj roj ntws tus nqi, cua kub kub, saturated calcined coke npaum li cas thiab lub sij hawm regeneration ntawm lub regeneration efficiency ntawm calcined coke raug soj ntsuam raws.Cov txiaj ntsig kev sim qhia tau hais tias thaum cov cab cab cov pa roj ntws nce, cov cua kub nce, thiab cov coke tom qab saturated calcining txo qis, nws muaj txiaj ntsig zoo rau kev txhim kho kev ua kom rov ua dua tshiab.Condensate thiab nqus cov regeneration tail gas, thiab tus nqi rov qab yog siab dua 97%, uas qhia tau hais tias cov condensation thiab nqus txoj kev yuav rov qab tau cov bitumen nyob rau hauv lub regeneration tail gas zoo.

Thaum kawg, peb lub tshuab ntawm kev sau roj, kev ua kom huv thiab rov tsim dua tshiab yog tsim, thiab cov qauv tsim tau muab tso rau hauv kev xyaum.Cov txiaj ntsig ntawm daim ntawv thov kev lag luam qhia tau hais tias kev ua kom huv ntawm asphalt fume thiab benzo (a) pyrene nce mus txog 85.2% thiab 88.64%, feem, thaum lub purifier yog siv los ntes thiab purify tawg thiab tsis muaj asphalt fumes.Qhov siab ntawm asphalt pa luam yeeb thiab benzo (a) pyrene ntawm qhov hluav taws xob ntawm lub purifier yog 1.4mg / m ~ 3 thiab 0.0188μg / m ~ 3, thiab cov emissions yog 0.04kg / h thiab 0.57 × 10 ~ (-6) kg /h, raws.Nws tau mus txog tus txheej txheem thib ob ntawm kev tso pa tawm ntawm cov pa phem GB16297-1996.