Isi ihe dị iche na omume calcination dị n'etiti coke nke dabeere na mmanụ na coke nke dabere na kol dị n'ụzọ mmeghachi omume dị iche iche nke ọdịiche dị na ihe mejupụtara kemịkalụ ha na-akpata, nke na-eduga na nnukwu mgbanwe na mgbanwe nhazi kristal, mgbanwe ihe onwunwe anụ ahụ, na nsogbu njikwa usoro. Nyocha zuru ezu bụ dị ka ndị a:
1. Ihe dị iche na ihe mejupụtara kemịkalụ ndị e ji ihe ndị dị ndụ mepụta tọrọ ntọala maka omume ịkpụcha mkpụrụ osisi.
A na-esi na ihe ndị dị arọ dịka mmanụ ala na mmanụ a na-akpọ catalytic cracking nweta koke sitere na mmanụ ala. Ihe mejupụtara kemịkalụ ya bụ obere hydrocarbons aromatic polycyclic jikọtara ọnụ, nke nwere obere ọdịnaya nke sọlfọ, nitrogen, oxygen, na heteroatoms metal, yana obere ihe na-adịghị ọcha na ihe quinoline-anaghị agbaze. Ihe mejupụtara a na-eme ka usoro calcination nke mmeghachi omume pyrolysis na-achịkwa, yana ụzọ mmeghachi omume dị mfe na iwepụ ihe na-adịghị ọcha nke ọma.
N'ụzọ dị iche, a na-emepụta kok nke e ji kọl mee site na kol tar pitch na ihe ndị na-adịghị mma ya, nke nwere oke dị elu nke ogologo side-chain na polycyclic aromatic hydrocarbons a gwakọtara agwakọta, yana nnukwu sọlfọ, nitrogen, oxygen heteroatoms, na ihe ndị na-adịghị mma siri ike. Ihe mejupụtara kok nke e ji kọl mee na-eduga ọ bụghị naanị mmeghachi omume pyrolysis kamakwa na nnukwu mmeghachi omume condensation n'oge calcination, na-ebute ụzọ mmeghachi omume dị mgbagwoju anya na ihe isi ike ka ukwuu na mwepụ ihe na-adịghị ọcha.
2. Ihe dị iche na nhazi kristal na-emetụta ihe onwunwe
N'oge a na-eme ka kọlịntị dị n'ime kọlịn mmanụ, obere kristal carbon dị na kọlịn mmanụ na-amụba nwayọ nwayọ na dayameta (La), elu (Lc), yana ọnụọgụ oyi akwa dị n'ime kristal (N). Ọdịnaya nke obere kristal graphite kacha mma (Ig/Iall) na-abawanye nke ukwuu. Ọ bụ ezie na Lc na-enweta "ebe ntụgharị" n'ihi ihe na-agbanwe agbanwe na mbelata kọlịn raw, nhazi kristal zuru oke na-aghọ ihe nkịtị, yana ọkwa graphitization dị elu. Mgbanwe nhazi a na-enye kọlịn mmanụ nwere ihe ndị dị mma dịka obere coefficient mgbasawanye okpomọkụ, obere resistivity eletriki, na nnukwu conductivity eletriki mgbe calcination gasịrị, na-eme ka ọ dabara adaba karịsịa maka imepụta nnukwu elektrọd graphite ike dị elu.
N'otu aka ahụ, nhazi carbon microcrystal nke coke dabere na kol na-agbanwe ka La, Lc, na N na-abawanye n'oge calcination. Agbanyeghị, n'ihi mmetụta nke ihe na-adịghị ọcha na mmeghachi omume condensation na ihe eji arụ ọrụ, enwere ọtụtụ ntụpọ kristal, mmụba nke ọdịnaya graphite microcrystal zuru oke dị oke. Na mgbakwunye, ihe "inflection point" maka Lc na-apụta ìhè karịa na coke dabere na kol, akwa ndị agbakwunyere ọhụrụ na-egosipụtakwa "mmejọ stacking" na-enweghị usoro na oyi akwa mbụ, na-eduga na nnukwu mgbanwe na oghere dị n'etiti oyi akwa (d002). Njirimara nhazi ndị a na-eme ka coke dabere na kol nwee obere coefficient mgbasawanye okpomọkụ na iguzogide eletriki karịa coke dabere na mmanụ mgbe calcination gasịrị, mana ike na nguzogide abrasion adịghị mma, na-eme ka ọ dịkwuo mma maka imepụta elektrọd ike dị elu na elektrọd ike dị elu nke ọkara.
3. Ihe dị iche na mgbanwe ihe onwunwe anụ ahụ na-ekpebi mpaghara ngwa
N'oge a na-eme ka kọlịn dị n'ime mmanụ ghara ịdị ike, a na-ewepụkwa kọlịn dị n'ime mmanụ ma na-ebelata olu ya otu otu, nke na-eme ka ọ dịkwuo elu nke ukwuu njupụta ya (ruo 2.00–2.12 g/cm³) ma na-eme ka ike igwe dịkwuo mma. N'otu oge ahụ, a na-eme ka ike eletriki, iguzogide oxidation, na nkwụsi ike kemịkalụ nke ihe e ji kọlịn dị ike, na-emezu ihe achọrọ maka arụmọrụ siri ike maka ngwaahịa graphite dị elu.
N'ụzọ dị iche, coke nke dabere na kol na-enweta nrụgide mpaghara n'oge ihe na-agbanwe agbanwe na-agbapụ n'ihi oke adịghị ọcha ya, na-eduga na mbelata olu na mmụba dị ntakịrị na njupụta ezi. Ọzọkwa, ike dị ala na nguzogide abrasion na-adịghị mma nke coke nke dabere na kol mgbe a gbasasịrị ya, yana ọchịchọ ya ịgbasa n'oge graphitization okpomọkụ dị elu, chọrọ njikwa siri ike nke ọnụego mmụba okpomọkụ. Njirimara ihe onwunwe ndị a na-egbochi ojiji nke kol nke dabere na kol n'ọhịa dị elu, ọ bụ ezie na obere coefficient mgbasa okpomọkụ ya na nguzogide eletriki ka na-eme ka ọ ghara ịgbanwe agbanwe n'ebe ụfọdụ.
4. Ihe dị iche na nsogbu njikwa usoro na-emetụta arụmọrụ mmepụta
N'ihi ihe mejupụtara kemịkalụ ya dị mfe, coke nke dabere na mmanụ na-egosipụta ụzọ mmeghachi omume doro anya n'oge calcination, na-ebute obere nsogbu njikwa usoro. Site n'ịhazi paramita dịka okpomọkụ calcination, ọnụego ọkụ, na njikwa ikuku, enwere ike imeziwanye ogo na arụmọrụ mmepụta nke ngwaahịa calcined nke ọma. Na mgbakwunye, ọdịnaya dị elu nke ihe na-agbanwe agbanwe na coke nke dabere na mmanụ na-enye ike okpomọkụ nke na-enye onwe ya n'oge calcination, na-ebelata ọnụ ahịa mmepụta.
N'ụzọ dị iche, ihe mejupụtara kemịkalụ dị mgbagwoju anya nke coke nke dabeere na kol na-eduga n'ọtụtụ ụzọ mmeghachi omume n'oge calcination, na-eme ka usoro njikwa dịkwuo elu. A chọrọ ọgwụgwọ siri ike tupu ihe ndị e ji emepụta ihe, njikwa ọnụego ọkụ kpọmkwem, na mgbanwe ikuku pụrụ iche iji hụ na ngwaahịa ahụ kwụsiri ike mgbe calcination gasịrị. Ọzọkwa, coke nke dabere na kol chọrọ mgbakwunye ike okpomọkụ ọzọ n'oge calcination, na-abawanye ọnụ ahịa mmepụta na oriri ike.
Oge ozi: Eprel-07-2026