Kuzindikira Kwambiri mu Activated Carbon Production Technology
Kupanga kaboni wokhala ndi activated ndi njira zotsatizana zotsogozedwa bwino zomwe zimasinthira ma organic feedstocks kukhala ma porous adsorbents, pomwe gawo lililonse lantchito limakhudza mwachindunji kutsatsa kwazinthuzo komanso kugwiritsa ntchito kwa mafakitale. Tekinoloje iyi yasintha kwambiri kuti ikwaniritse zofuna zosiyanasiyana, kuyambira kuchiritsa madzi mpaka kuyeretsa mpweya, ndikusintha kosalekeza koyang'ana kukhazikika komanso kukhathamiritsa kwa magwiridwe antchito.
Kusankhira Zinthu Zowonongeka ndi Kukonzekeratu: Maziko a Ubwino Ulendo umayamba ndikusankha njira zopangira, monga katundu wa feedstock amatengera mawonekedwe a chinthu chomaliza. Zipolopolo za kokonati zimakhalabe chisankho chamtengo wapatali chifukwa chokhala ndi mpweya wambiri wokhazikika (kupitirira 75%), phulusa lochepa (losakwana 3%), ndi mawonekedwe a ulusi wachilengedwe, omwe amathandizira kupanga pore-kuwapanga kukhala abwino kwa mapulogalamu apamwamba monga kuchotsa poizoni wa mankhwala. Malasha, makamaka amtundu wa bituminous ndi anthracite, amawakonda kwambiri popanga mafakitale akuluakulu chifukwa cha kukhazikika kwake komanso kutsika mtengo, pomwe zakudya zopangira nkhuni (mwachitsanzo, paini, oak) zimakondedwa m'misika yabwino chifukwa cha chilengedwe chawo chongowonjezedwanso. Pambuyo posankha, kukonzanso n'kofunika kwambiri: zopangira zimaphwanyidwa mu 2-5mm particles kuti zitsimikizidwe kuti kutentha kugawanika, kenako kuuma mu ng'anjo zozungulira pa 120-150 ° C kuti muchepetse chinyezi pansi pa 10%. Izi zimachepetsa kugwiritsa ntchito mphamvu pakuwotha kotsatira ndikuletsa kusamvana kwa carbonization
Njira Zapakati: Carbonization ndi Activation
Carbonizationndi sitepe yoyamba yosinthira, yochitidwa m'ng'anjo zozungulira zopanda mpweya kapena ma retor oyima pa 400-600 ° C. Apa, zinthu zosasunthika (mwachitsanzo, madzi, phula, ndi ma organic acid) zimachotsedwa, zomwe zimapangitsa kuchepa thupi kwa 50-70%, pomwe mafupa olimba a kaboni amapangidwa. Komabe, chigoba ichi chimakhala ndi porosity yaying'ono - nthawi zambiri zosakwana 100 m² / g - zomwe zimafunikira.kuyambitsakuti mutsegule kuthekera kwa zinthuzo
Njira ziwiri zoyankhulirana zazikulu zimagwiritsidwa ntchito m'mafakitale.Kuyambitsa thupi(kapena kuyatsa gasi) kumaphatikizapo kuchiza zinthu za carbonized ndi mpweya wa okosijeni (nthunzi, CO₂, kapena mpweya) pa 800-1000 ° C. Mpweyawu umakhudzidwa ndi mpweya wa carbon, etching micro-pores (≤2nm) ndi maso-pores (2-50nm) yomwe imapanga malo opitirira 1,500 m² / g. Njirayi imayamikiridwa pazakudya komanso mankhwala omwe ali ndi carbon activated chifukwa alibe mankhwala.Chemical kutsegula, mosiyana, amasakaniza zopangira ndi dehydrating agents (ZnCl₂, H₃PO₄, kapena KOH) pamaso pa carbonization. Mankhwalawa amachepetsa kutentha kwa 400-600 ° C ndikulimbikitsa kukula kwa pore, ndikupangitsa kuti ikhale yoyenera kugwiritsa ntchito mwapadera monga kutsatsa kwa VOC. Komabe, njirayi imafuna kutsuka mwamphamvu ndi madzi kapena ma asidi kuti muchotse mankhwala otsala, ndikuwonjezera zovuta panjirayo.
Pambuyo pa Chithandizo ndi Zopanga Zokhazikika
Pambuyo kutsegula, mankhwala akukumana kuphwanya, sieving (kukwaniritsa tinthu kukula kuyambira 0.5mm kuti 5mm), ndi kuyanika kukumana mfundo makampani. Mizere yamakono yopanga ikuphatikiza njira zochiritsira: kutentha kwa zinyalala kuchokera ku ng'anjo za carbonization kumagwiritsidwanso ntchito ku zowumitsira magetsi, pamene zopangira mankhwala (mwachitsanzo, diluted acids) zimachotsedwa ndikugwiritsidwanso ntchito. Kuonjezera apo, kafukufuku wokhudzana ndi zakudya zamtundu wa biomass-monga zinyalala zaulimi (mankhusu ampunga, nzimbe) -kuchepetsa kudalira malasha osasinthika komanso kupititsa patsogolo luso laukadaulo la chilengedwe.
Mwachidule, ukadaulo wopangira kaboni wopangidwa ndi kaboni umalinganiza uinjiniya wolondola ndi wosinthika, ndikupangitsa kuti igwire ntchito zofunika kwambiri pakuteteza chilengedwe ndi njira zama mafakitale. Pamene kufunikira kwa madzi oyera ndi mpweya kukukula, kupita patsogolo kwa mitundu yosiyanasiyana ya feedstock ndi kupanga zobiriwira kudzalimbitsa kufunikira kwake.
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Nthawi yotumiza: Nov-13-2025