Coke ya peteroli ni ikintu gikomeye gishobora gushya gituruka mu bisigazwa bya peteroli na asphalt ya peteroli hakoreshejwe coking. Ibara ni umukara kandi rifite imyenge, ikintu nyamukuru ni karuboni, kandi ivu ririmo ni rito cyane, muri rusange riri munsi ya 0.5%. Coke ya peteroli ni ubwoko bwa karuboni yoroshye gukoresha grafiti, coke ya peteroli ifite uburyo bwinshi bwo kuyikoresha mu nganda za shimi, ibyuma n'izindi nganda, kandi ni yo mashini nyamukuru ikoreshwa mu gukora ibikoresho bya grafiti y'ubukorano n'ibikomoka kuri karuboni ya aluminiyumu.
Dukurikije ubushyuhe bwo kuvura ubushyuhe, peteroli coke ishobora kugabanywamo amoko abiri: coke mbisi na coke ya calcium. Coke ya kera ya peteroli iboneka muri coking yatinze iba irimo ibintu byinshi bihindagurika kandi ifite imbaraga nke za mekanike. Coke ya calcium iboneka hakoreshejwe calcium. Inganda nyinshi zo mu Bushinwa zikora coke mbisi gusa, kandi ibikorwa byinshi byo gukaraba bikorerwa mu nganda za karuboni.
Koke ya peteroli ishobora kugabanywamo ubwoko butatu bwa koke ya sulfur nyinshi (irimo sulfur irenga 1.5%), koke ya sulfur iciriritse (irimo sulfur irenga 0.5%-1.5%), na koke ya sulfur iciriritse (irimo sulfur irenga 0.5%). Electrode za grafiti n'ibindi bicuruzwa bya grafiti by'ubukorano muri rusange bikoresha koke ya sulfur nke.
Ifu ya Needle coke ni ubwoko bwa coke nziza cyane ifite imiterere igaragara ya fibrous, cyane cyane ingano nto y'ubushyuhe bwo kwaguka no koroshya gukoresha graphitization. Iyo blok ya coke yacitse, ishobora kugabanywamo uduce duto dukurikije imiterere (ubusanzwe ikigereranyo kiri hejuru ya 1.75), kandi imiterere ya anisotropic fibrous ishobora kugaragara munsi ya mikorosikopi y'urumuri rwa polarized, bityo yitwa needle coke.
Uburyo bwo gupima no gupima imiterere y’icyuma cya needle coke bugaragara cyane, kandi bufite amashanyarazi n’ubushyuhe bwiza bujyanye n’umurongo muremure w’uduce, kandi ingano y’ubushyuhe iba nto. Mu gihe cyo gushushanya, umurongo muremure w’uduce twinshi utunganywa hakurikijwe icyerekezo cyo gusohora. Kubwibyo, neilled coke ni igikoresho cy’ingenzi mu gukora electrodes za grafiti zifite ingufu nyinshi cyangwa ultra-high-power, zifite ubushobozi buke bwo kugabanya ubushyuhe, ingano nto y’ubushyuhe n’ubudahangarwa bwiza bwo kugabanya ubushyuhe.
Ifu ya Needle coke igabanyijemo amavuta ya needle coke ikomoka ku bisigazwa bya peteroli na ifu ya needle coke ikomoka ku makara yatunganyijwe.
Ubushyuhe bw'amakara ni kimwe mu bicuruzwa by'ingenzi mu gutunganya ubushyuhe bw'amakara. Ni uruvange rw'ubwoko butandukanye bwa hydrocarbon, ubushyuhe bwinshi bw'umukara bugizwe n'ibice bibiri cyangwa bikomeye ku bushyuhe bw'icyumba, budafite aho buhuriye n'ubushyuhe buhamye, bugashonga nyuma y'ubushyuhe, hanyuma bugashonga, bufite ubucucike bwa 1.25-1.35g / cm3. Dukurikije aho bugera, bugabanyijemo ubushyuhe buke, ubushyuhe buri hagati n'ubushyuhe bwinshi. Umusaruro w'ubushyuhe buri hagati ni 54-56% bya tar ya makara. Imiterere y'ubushyuhe bw'amakara iragoye cyane, ifitanye isano n'imiterere ya tar ya makara n'ingano ya heteroatom, kandi ikagira ingaruka ku buryo bwo guconga no gutunganya tar ya makara. Hari ibipimo byinshi bigaragaza imiterere y'ubushyuhe bw'amakara, nko guconga asphalt, toluene idashobora gushonga (TI), quinoline idashobora gushonga (QI), agaciro ka coking n'imiterere ya rheological y'ubushyuhe bw'amakara.
Ubutaka bw'amakara bukoreshwa nk'ikintu gifunga no gutera umwuka mu nganda za karuboni, kandi imiterere yabwo igira ingaruka zikomeye ku musaruro n'ubwiza bw'ibicuruzwa bya karuboni. Ubusanzwe, asphalt ikoresha asphalt ihindura ubushyuhe buringaniye cyangwa ubushyuhe buringaniye ifite aho yoroshya ibintu, agaciro kayo ko guconga kari hejuru na resin nyinshi ya beta, kandi icyo kintu gitanga umwuka kigomba gukoresha asphalt ihindura ubushyuhe buringaniye ifite aho yoroshya ibintu, QI iri hasi kandi ifite rheology nziza.
Igihe cyo kohereza: Gashyantare-07-2025