Koke ya peteroli ya grafitize ni iki?

Coke ya Peteroli ifite Graphitized: Ibikoresho bya Karuboni Bikora Cyane Bikomoka kuri Coke ya Peteroli

Coke ya peteroli ifite grafiti ni ibikoresho bya karuboni bikorerwa mu gushyira coke ya peteroli mu bushyuhe bwinshi (ubusanzwe 2,800°C–3,000°C). Ikintu cy'ingenzi kiyiranga ni ukuvugurura atome za karuboni muri coke ya peteroli bitewe n'ubushyuhe bwinshi mu buryo bw'imiterere ya kristu yegereye grafiti karemano, bikongera cyane imiterere yayo ifatika n'imiti. Hasi hari isesengura rirambuye:

I. Ibiranga by'ingenzi: Kongera imikorere binyuze mu gushushanya

1. Ingano nyinshi ya karuboni n'umwanda muke
   • Ingano ya karuboni irenga 98%, ingano ya sulfur iri hasi cyane kugeza kuri <0.05%, aho ivu n'ibintu bihinduka biri hasi cyane ugereranyije na coke isanzwe ya peteroli. Ubu buziranenge bwinshi butuma iba nziza cyane mu byuma, imiti n'izindi nganda.
2. Uburyo bwiza bwo gutwara amashanyarazi n'ubushyuhe
   • Graphitization ikora imiterere isanzwe y’ibice, igabanya ubudahangarwa bwo kwimuka kwa electron. Ubudahangarwa bugabanuka bukagera kuri 5–7 μΩ·m (ugereranyije na 8–12 μΩ·m kuri coke isanzwe), bukegereza ubwiyongere bw’ubudahangarwa bwa graphite karemano.
3. Ubushyuhe bwinshi buhamye n'ubudahangarwa bw'ibinyabutabire
   • Igumana imiterere ihamye ku bushyuhe buri hejuru (urugero, >1.600°C mu itanura ry'amashanyarazi rikora ibyuma) kandi ikarwanya ingaruka ziterwa na aside/alkali. Ikwiriye ibikoresho birwanya ubushyuhe bwinshi n'ibikoresho bitanga ubushyuhe bwinshi.
4. Igipimo cyo Kunywa Cyane & Koreji yo Kwagura Ubushyuhe (CTE)
   • Imiterere y'imyenge (30–50% y'imyenge) na CTE nkeya (~1.5–2.5×10⁻⁶/°C) birakora neza mu mikoreshereze nka kaburizeri n'amavuta yo kwisiga.

II. Uburyo bwo gukora: Intambwe z'ingenzi mu gushushanya ubushyuhe bwinshi

1. Gutegura ibikoresho by'ibanze
   • Hitamo koke ya peteroli idafite sulfur nyinshi kandi ifite ivu rike (urugero, koke y'inshinge cyangwa koke y'ikigega iva mu guconga byatinze). Kanda, pima, hanyuma uhindure ingano y'uduce duto (urugero, mm 0–1, mm 1–3).
2. Graphitization y'ubushyuhe bwinshi
   • Uburyo gakondo bwo gukoresha ifuru ya Acheson: Vanga peteroli ya coke n'ibikoresho bya grafitizing (urugero: umucanga wa quartz) hanyuma ushyushye kugeza kuri 2,800–3,000°C mu itanura rirwanya ubushyuhe mu gihe cy'amasaha 20–50. Ingufu nyinshi zikoreshwa (6,000–8,000 kWh/toni) ariko zishaje.
   • Uburyo bwa none bwo gukoresha ifuru ihoraho: Koresha amatanura ahagaze cyangwa azunguruka arinzwe na gaze (N₂/Ar) kugira ngo ushyushye/ukonjeshe vuba (igihe cy'urugendo: amasaha 24–48). Ingufu zikoreshwa zagabanijwe kugera kuri 3.500 kWh/toni, hamwe n'ubuziranenge bwinshi (ivu <0.1%).
3. Nyuma yo Gutunganya
   • Konjesha, ujanjagure, kandi ushyireho icyuma gipima ubushyuhe. Shyiraho irangi ryo hejuru (urugero: pitch) cyangwa chemical vapor deposition (CVD) kugira ngo wongere imikorere hakurikijwe ibyo umukiriya akeneye.

III. Imikoreshereze: "Ibikoresho Bikoreshwa mu Buhanga bw'Ibyuma n'Imiti"

1. Inganda z'ibyuma
   • Electrode za Graphite: Ibikoresho by'ingenzi byo gukora ibyuma byo mu itanura ry'amashanyarazi, bihangana n'ubushyuhe bwinshi n'amazi kugira ngo birusheho kunoza imikorere.
   • Kaburiteri: Yongera vuba ingano ya karuboni (irenga 90% y’ubushyuhe) mu gucukura icyuma gikozwe mu cyuma ...
   • Ibikoresho bihindura umwuka: Bikoreshwa mu matafari ya karuboni cyangwa mu mvange zo gukurura amatafari mu buryo bushyushye cyane kugira ngo byongere igihe cyo gukora.
2. Inganda z'ibinyabutabire
   • Gukora karuboni ya silikoni: Ikora nk'isoko ya karuboni ikorana na SiO₂ kugira ngo ikore ibintu bikomeye kandi bidashira bya silikoni.
   • Ibikoresho bya bateri: Coke ifite ubunini bwa nano grafitis ituma bateri ya lithium-ion ibasha gusharija/gusohora anode.
3. Izindi porogaramu
   • Amavuta yo kwisiga: Imiterere y’ibice n’ingano nto y’ubushyuhe bituma ikoreshwa nk’amavuta akomeye mu mashini.
   • Inyongeramusaruro za Plastiki/Rubber: Yongera ubushobozi bwo gutwara ibintu cyangwa kwirinda guhindagurika kw'ikirere.

IV. Kugereranya na Coke isanzwe ya Peteroli

V. Agaciro n'Icyerekezo by'Isoko

Bitewe n'iterambere ry'imodoka zikora ibyuma bikoresha amashanyarazi n'izikoresha ingufu nshya, icyifuzo cya coke ya peteroli ifite grafiti kiracyakomeza kwiyongera. Ikoranabuhanga rigezweho ry'itanura rihoraho rigabanya ikiguzi cyo gukora ku kigero cya 40-50% ugereranije n'uburyo bwa gakondo, bigatuma habaho kwaguka mu bikorwa byo hagati. Iterambere ry'ejo hazaza, nko kugabanya hydrogen no gushyushya mikoroonde, risezeranya inzira nziza kandi nziza zo gukora.