Maitiro ekugadzirisa kabhoni inoshandiswa pakugadzira kabhoni inowanzo kuve nekabhoni inoteverwa nekushandiswa kwezvinhu zvinokabhoni kubva mumiti. Kugadzira kabhoni inzira yekupisa pa400-800°C iyo inoshandura zvinhu zvakabikwa kuita kabhoni nekuderedza zviri muzvinhu zvinoshanduka uye kuwedzera huwandu hwekabhoni iri muzvinhu izvi. Izvi zvinowedzera simba rezvinhu uye zvinogadzira chimiro chekutanga chine maburi chinodiwa kana kabhoni ichida kushanda. Kugadzirisa mamiriro ekugadzira kabhoni kunogona kukanganisa chigadzirwa chekupedzisira zvakanyanya. Kuwedzerwa kwekupisa kwekabhoni kunowedzera reactivity, asi panguva imwe chete kunoderedza huwandu hwemaburi aripo. Kuderera uku kwehuwandu hwemaburi kunokonzerwa nekuwedzera kwekusanganiswa kwezvinhu pakupisa kwakanyanya kwekabhoni iyo inobereka kuwedzera kwesimba remakanika. Nokudaro, zvinova zvakakosha kusarudza tembiricha chaiyo yemaitiro zvichibva pane chigadzirwa chaunoda chekugadzira kabhoni.
Ma oxide aya anopararira kubva mu kabhoni zvichikonzera gasification shoma iyo inovhura ma pores akambovharwa uye inowedzera kukura kwechimiro chemukati chema carbons. Mukushanda kwemakemikari, kabhoni inopindurwa pakupisa kwakanyanya nechinhu chinobvisa hydrogen yakawanda neokisijeni kubva muchimiro chekabhoni. Kushanda kwemakemikari kunowanzo sanganisa danho re carbonization ne activation, asi matanho maviri aya anogona kuitika zvakasiyana zvichienderana nemaitiro acho. Nzvimbo dzakakwirira dzinopfuura 3,000 m2 / g dzakawanikwa pakushandisa KOH se chemical activating agent.
Kabhoni Inoshanda Kubva Muzvinhu Zvakasiyana-siyana Zvisina Kugadzirwa.
Pamusoro pekuva adsorbent inoshandiswa pazvinangwa zvakasiyana-siyana, activated carbon inogona kugadzirwa kubva muzvinhu zvakasiyana-siyana, zvichiita kuti ive chigadzirwa chinoshanduka-shanduka zvikuru chinogona kugadzirwa munzvimbo dzakasiyana-siyana zvichienderana nekuti zvinhu zvipi zviripo. Zvimwe zvezvinhu izvi zvinosanganisira magoko emiti, matombo emichero, zvinhu zvehuni, asphalt, metal carbides, carbon blacks, marara akachekwa kubva mutsvina, uye polymer scraps. Mhando dzakasiyana dzemarasha, dziripo kare muchimiro che5 carbonaceous ine chimiro chepore chakagadzirwa, dzinogona kugadziriswa zvakare kugadzira activated carbon. Kunyangwe activated carbon ichigona kugadzirwa kubva kune chero chinhu chisina kugadzirwa, zvinodhura zvakanyanya uye zvine hanya nezvakatipoteredza kugadzira activated carbon kubva muzvinhu zvisina kugadzirwa. Activated carbon inogadzirwa kubva mucoconut shells yakaratidzwa kuti ine ma micropores akawanda, zvichiita kuti ive chinhu chinoshandiswa zvakanyanya pakushandisa panodiwa adsorption yakakura. Sawdust nezvimwe zvinhu zvehuni zvinewo ma microporous structures akasimba akanaka eku adsorption kubva mugasi phase. Kugadzira kabhoni inoshanda kubva mumatombo emuorivhi, plum, apricot, uye peach kunoita kuti pave nekuomarara kwakanyanya, kuramba kukweshana uye kuputika kwakanyanya. Zvimedu zvePVC zvinogona kushanda kana HCl ikabviswa isati yabviswa, uye zvinoguma nekabhoni inoshanda inoshanda zvakanaka kuti iwedzere methylene blue. Makabhoni anoshanda akatogadzirwa kubva muzvimedu zvematairi. Kuti tisiyanise mhando dzakasiyana dzezvimedu zvinogona kushandiswa, zvinova zvakakosha kuongorora hunhu hwemuviri hunobva pakushanda. Pakusarudza precursor, hunhu hunotevera hunokosha: nzvimbo chaiyo yepore, vhoriyamu yepore uye kugoverwa kwepore, kuumbwa uye saizi yemagranules, uye chimiro chemakemikari/hunhu hwepore.
Kusarudza chinhu chakakodzera chekushandisa zvakanaka kwakakosha nekuti kusiyana kwezvinhu zvinotangira zvinhu kunobvumira kudzora chimiro chepore remacarbon. Zvinhu zvakasiyana zvinotangira zvine huwandu hwakasiyana hwema macropores (> 50 nm,) izvo zvinosarudza reactivity yazvo. Ma macropores aya haashande pakunyungudutsa, asi kuvapo kwawo kunobvumira nzira dzakawanda dzekugadzira ma micropores panguva yekushanda. Pamusoro pezvo, ma macropores anopa nzira dzakawanda dzekuti mamorekuru anyungudike asvike kuma micropores panguva yekunyungudutsa.
Nguva yekutumira: Kubvumbi-01-2022