An samar da babban adadin da aka tarwatsa bututun kwalta tare da maida hankali na 5-7mg / m ~ 3 yayin aiwatar da aikin samar da carbon carbon na shuka alumina.Idan an fitar da shi kai tsaye, zai yi tasiri sosai ga muhallin da ke kewaye da ma'aikatan masana'anta.Nufin wannan hayaƙin farar ruwa, ana amfani da ƙaramin coke mai ɗanɗano don sha da tsarkake shi, kuma cikakken coke ɗin yana sake haifuwa ta hanyar sabuntar zafi.

Da fari dai, an yi nazarin tsarin adsorption na calcined coke, kuma an yi nazari akan tasirin zafin adsorption, fidda fume maida hankali, saurin sararin samaniya da girman barbashi na coke na calcined akan tasirin adsorption na calcined coke.Sakamakon binciken ya nuna cewa yawan hayakin farar da ake tallatawa ta hanyar coke mai ƙima yana ƙaruwa tare da haɓakar shigar da hayaƙin farar.Ƙananan saurin sararin samaniya, ƙarancin zafin jiki, da ƙananan ƙwayar ƙwayar cuta duk suna da fa'ida ga tallan tururin farar ta coke mai ƙima.An yi nazarin thermodynamics na adsorption na coke calcined, wanda ya nuna cewa tsarin tallan shine tallan jiki.Ƙaddamar da isotherm na adsorption yana nuna cewa tsarin ƙaddamarwa ya dace da ma'auni na Langmuir.

Na biyu, sabunta dumama da kuma dawo da natsuwa na cikakken calcined coke.Sakamakon yawan kwararar iskar gas mai ɗaukar nauyi, zafin zafin jiki, cikakken adadin coke mai cike da ƙima da lokutan sabuntawa akan ingantaccen ingantaccen coke ɗin calcined bi da bi.Sakamakon gwaji ya nuna cewa lokacin da yawan iskar gas mai ɗaukar kaya ya karu, zafin zafi yana ƙaruwa, kuma adadin coke bayan cikakken calcining yana raguwa, yana da amfani ga haɓaka haɓakar haɓakawa.Condensate da kuma sha da farfadowa da wutsiya gas, da kuma dawo da kudi ne a sama da 97%, wanda ya nuna cewa condensation da sha Hanyar iya dawo da bitumen a cikin regenerative gas wutsiya da kyau.

A ƙarshe, an tsara tsarin uku na tara iskar gas, tsarkakewa da sabuntawa, kuma ana aiwatar da sakamakon ƙira.Sakamakon aikace-aikacen masana'antu ya nuna cewa ingancin tsarkakewar kwalta fume da benzo (a) pyrene ya kai 85.2% da 88.64%, bi da bi, lokacin da ake amfani da mai tsarkakewa don kamawa da kuma tsarkake tururin kwalta da ba a tsara ba.Matsakaicin hayaki na kwalta da benzo (a) pyrene a mashigar mai tsarkakewa shine 1.4mg/m ~ 3 da 0.0188μg/m ~ 3, kuma abubuwan da aka fitar sun kasance 0.04kg/h da 0.57×10~(-6)kg /h, bi da bi.Ya kai matsayi na biyu na cikakkiyar fitarwa na gurɓataccen iska GB16297-1996.