Nale coke ke silver-gray porous solid e nang le tataiso e hlakileng ea fiber texture, 'me e na le litšoaneleho tsa crystallinity e phahameng, matla a phahameng, graphitization e phahameng, katoloso e tlaase ea mocheso, ablation e tlaase, joalo-joalo E na le tšebeliso e khethehileng ho ts'ireletso ea naha le liindasteri tsa sechaba. thepa e tala ea boleng bo phahameng bakeng sa ho etsa li-electrode tsa graphite, lisebelisoa tsa anode tsa betri le lihlahisoa tsa carbon tse phahameng.

Ho ea ka mefuta e fapaneng ea lihlahisoa tse sebelisoang, coke ea nale e ka aroloa ka mefuta e 'meli: e thehiloeng ka oli le ea mashala: coke ea nale e hlahisoang ho tsoa lihlahisoa tse hloekisang petroleum e bitsoa oli-based needle coke, le coal tar pitch le likaroloana tsa eona. e hlahisoang ka oli e bitsoa coke ea nale e thehiloeng ka mashala.Tlhahiso ea nale coke e nang le lihlahisoa tsa peterole e na le melemo e ikhethang ea ts'ireletso ea tikoloho, 'me ts'ebetsong ha e thata haholo' me theko ea tlhahiso e tlaase, kahoo e lefshoa ka ho eketsehileng ke batho.

Coke ea nale e thehiloeng ka oli e ka aroloa ka mefuta e 'meli: coke e tala le coke e phehiloeng (coke e calcined).Har'a tsona, coke e tala e sebelisoa ho hlahisa lisebelisoa tse fapaneng tsa li-electrode tse se nang betri, 'me coke e phehiloeng e sebelisetsoa ho hlahisa li-electrode tsa graphite tse matla haholo.Lilemong tsa morao tjena, ka boemo bo ntseng bo eketseha ba ts'ireletso ea tikoloho, tsoelo-pele e potlakileng ea likoloi tse ncha tsa matla e lebisitse ho tlhokahalo e kholo ea lisebelisoa tsa anode ea betri;ka nako e ts'oanang, li-converter tsa khale tsa lik'hamphani tsa tšepe li nkeloe sebaka ke libōpi tsa motlakase.Tlas'a liphello tse peli, tlhokahalo ea 'maraka ea nale coke e eketsehile haholo.Hona joale, tlhahiso ea coke ea nale e thehiloeng ka oli lefatšeng e laoloa ke lik'hamphani tsa Amerika, 'me ke lik'hamphani tse' maloa feela tse kang Jinzhou Petrochemical, Jingyang Petrochemical le Yida New Materials tse fihletseng tlhahiso e tsitsitseng naheng ea heso.Lihlahisoa tse phahameng tsa nale ea coke haholo-holo li itšetlehile ka thepa e tsoang linaheng tse ling.Chelete e ngata ha e senyehe feela, empa e boetse e fumaneha habonolo.Ho bohlokoa haholo ho potlakisa liphuputso mabapi le ts'ebetso ea tlhahiso ea nale le ho hlokomela ho ts'oaroa ha tlhahiso kapele kamoo ho ka khonehang.

Lintho tse tala ke ntlha ea bohlokoa e amang boleng ba nale coke.Lintho tse tala tse loketseng li ka fokotsa haholo bothata ba ho etsa mesophase sekontiri le ho tlosa lintlha tse sa tsitsang tse latelang.Lisebelisoa tse tala bakeng sa ho hlahisa nale coke li lokela ho ba le litšobotsi tse latelang:

①Likahare tsa aromatics li phahame, haholo-holo litaba tsa 3 le 4-ring short side chain aromatics ka mokhoa o ikhethileng ke 40% ho isa ho 50%.Ka tsela ena, nakong ea carbonization, limolek'hule tsa aromatics lia kopana ho theha limolek'hule tse kholoanyane tsa aromatics, le ka har'a tse kholo.π Maru a elektrone a tlanngoeng ka holim'a e 'ngoe ho etsa lesela la sebopeho se batlang se lekana le graphite.

②Li-asphaltene le li-colloid tse teng ka har'a sebopeho sa limolek'hule tsa li-hydrocarbon tse kholo tse nkhang hamonate li na le litaba tse tlase.Lintho tsena li na le polarity e matla ea molek'hule le reactivity e phahameng., Ka kakaretso ho hlokahala hore taba ea heptane e sa tsitsang e be ka tlase ho 2%.

③Sebabole ha se fete 0.6%, mme naetrojene ha e fete 1%.Sebabole le naetrojene li baleha habonolo ka lebaka la mocheso o phahameng nakong ea tlhahiso ea li-electrode le ho baka ho ruruha ha khase, e leng ho tla baka mapetsong a li-electrode.

④Molora oa molora o ka tlase ho 0.05%, 'me ha ho na litšila tsa mechine tse kang catalyst powder, e tla etsa hore karabelo e tsoele pele ka potlako nakong ea carbonization, ho eketsa bothata ba ho etsa mesophase spheres, le ho ama thepa ea coke.

⑤Diteng tsa dimetale tse boima tse kang vanadium le nickel di ka tlase ho 100ppm, hobane metsoako e bopilweng ka dimetale tsena e na le phello ya matla, e tla potlakisa nucleation ya mesophase sphere, mme ho thata hore didikadikwe di hole ka ho lekaneng.Ka nako e ts'oanang, ho ba teng ha litšila tsena tsa tšepe ka sehlahisoa ho tla boela ho bake li-voids, Mathata a kang mapetsong a lebisa ho fokotseha ha matla a sehlahisoa.

⑥Quinoline insoluble matter (QI) ke zero, QI e tla hokelloa ho potoloha mesophase, e sitisa kholo le motsoako oa likristale tse chitja, 'me sebopeho sa nale se nang le sebopeho se setle sa fiber se ke ke sa fumanoa kamora ho pheha.

⑦Boima bo boholo ho feta 1.0g/cm3 ho netefatsa chai e lekaneng ea coke.

Ha e le hantle, lioli tsa feedstock tse finyellang litlhoko tse ka holimo ha li fumanehe ka seoelo.Ho latela pono ea likarolo, seretse se chesang sa oli se nang le monko o monate, oli e nkiloeng ka boea, le tar ea ethylene ke lisebelisoa tse tala bakeng sa tlhahiso ea nale.Catalytic cracking oil slurry ke e 'ngoe ea lihlahisoa tse hlahisoang ke sesebelisoa sa catalytic,' me hangata e romelloa joalo ka oli e theko e tlaase.Ka lebaka la palo e kholo ea lintho tse nkhang hamonate ho eona, ke thepa e tala ea boleng bo phahameng bakeng sa tlhahiso ea nale coke ho latela sebopeho.Ha e le hantle, lefatšeng ka bophara Boholo ba lihlahisoa tsa nale coke li lokiselitsoe ho tloha ho catalytic cracking oil slurry.