Kuziva petroleum coke uye calcined petroleum coke
1. Petroleum coke
Petroleum coke idema kana rima grey hard solid petroleum chigadzirwa chine simbi inopenya uye ine porous.Petroleum coke components mahydrocarbons, ane 90-97% kabhoni, 1.5-8% hydrogen, nitrogen, chlorine, sarufa uye heavy metal compounds.
Petroleum coke ndeye-chigadzirwa che pyrolysis yemafuta feedstock mune yakanonoka coking zvikamu pakupisa kwakanyanya kugadzira zvigadzirwa zvemafuta akareruka.Kubuda kwepetroleum coke kunenge 25-30% yemafuta mbishi.Iyo yakaderera calorific kukosha inenge 1.5-2 nguva yemarasha, madota emukati haapfuuri 0.5%, iyo inoputika nyaya inenge 11%, uye hutano huri pedyo neanthracite.
2. Chiyero chemhando yepetroleum coke
Yakanonoka petroleum coke inoreva coke yakasvibira inogadzirwa neyakanonoka coking unit, inozivikanwawo seyakajairwa coke, uye hapana chiyero chenyika chinoenderana parizvino.Parizvino, mabhizinesi ekugadzira epamba anonyanya kugadzira zvinoenderana neindasitiri chiyero SH0527-92 chakagadzirwa neyaimbova Sinopec Corporation.Iyo chiyero inonyanya kuiswa zvichienderana nesarufa yemukati ye petroleum coke.Pakati pavo, giredhi rekutanga coke uye Nha.Nhamba 2 coke inoshandiswa mukugadzirwa kwealuminium kugadzira.Electrode paste inoshandiswa mumasero e electrolytic (furnace) nekugadzirwa kwegraphite electrodes, No. 3 coke inoshandiswa pakugadzirwa kwesilicon carbide (abrasive material) uye calcium carbide (calcium carbide), nezvimwe zvinogadzirwa nekabhoni, zvinoshandiswawo mukugadzirwa kwe anodes ealuminium anonyungudutsa maseru Pazasi block uye anoshandiswa kuputika choto kabhoni lining zvidhinha kana muchoto kuvakwa kwepasi.
3. Kunyanya kushandiswa kwepetroleum coke
Iko kushandiswa kukuru kwepetroleum coke ndeye pre-yakabikwa anode uye anode pastes anoshandiswa mu electrolytic aluminium, kabhoni indasitiri yekugadzira kabhoni enhancers, graphite electrodes, kunyungudutsa maindasitiri silicon, uye mafuta.
Zvinoenderana nechimiro uye chitarisiko chepetroleum coke, zvigadzirwa zvepetroleum coke zvinogona kukamurwa kuita 4 mhando: tsono coke, sponge coke, projectile coke uye poda coke: (1) Tsono coke, ine zvakajeka dhizaini-yakaita tsono uye kugadzirwa kwefiber, inonyanya kushandiswa. yekugadzira simbi Yakakwirira-simba graphite electrodes uye Ultra-yakakwirira-simba graphite electrodes mu Sezvo tsono coke ine yakasimba mhando index zvinodiwa maererano nesarufa yemukati, madota, zvinhu zvinoshanduka uye density yechokwadi, pane zvakakosha zvinodiwa kune tsono coke kugadzira tekinoroji uye mbishi. zvinhu.
(2) Sponge coke, ine yakakwira makemikari reactivity uye yakaderera kusvibiswa zvirimo, inonyanya kushandiswa mualuminium kunyungudutsa indasitiri uye kabhoni indasitiri.
(3) Projectile coke kana spherical coke: Yakaita denderedzwa muchimiro uye 0.6-30mm mudhayamita.Iyo inowanzo gadzirwa kubva kune yakakwirira-sarufa uye yakakwira-asphaltene yakasara oiri uye inogona kushandiswa chete semafuta emuindasitiri akadai sekugadzira magetsi uye simende.
(4) Powder coke: Inobudiswa ne-fluidized coking process, ine zvimedu zvakanaka (0.1-0.4mm muhupamhi), yakakwirira inoputika uye yakakwirira yekuwedzera kwemafuta ekuwedzera, uye haigoni kushandiswa zvakananga mukugadzirisa electrode uye carbon industry.
