Cov suab thee, luv rau cov suab thee tar, cov thee tar distillation ua tom qab tshem tawm cov kua distillate residue, yog ib hom asphalt dag, feem ntau rau cov kua viscous, semi-khoom lossis khoom, dub thiab ci, feem ntau muaj carbon 92 ~ 94%, hydrogen li 4 ~ 5%. Cov suab thee tar yog ib yam khoom tseem ceeb hauv cov txheej txheem ntawm cov thee tar ua thiab yog cov khoom siv raw tsis tuaj yeem hloov pauv rau cov pa roj carbon.
Lub hom phiaj ntawm kev rho cov roj tar yog kom muab cov tshuaj sib xyaw ua ke nrog cov ntsiab lus kub zoo sib xws hauv cov roj tar ua cov feem sib xws rau kev ua tiav thiab sib cais cov khoom monomer ntxiv. Cov seem ntawm kev rho tawm cov roj distillate yog cov thee tar pitch, suav txog 50% ~ 60% ntawm cov thee tar.
Raws li cov ntsiab lus sib txawv ntawm kev ua kom mos, cov thee asphalt tau muab faib ua cov asphalt kub qis (asphalt mos), asphalt kub nruab nrab (asphalt ib txwm), asphalt kub siab (asphalt tawv) peb pawg, txhua pawg muaj No. 1 thiab No. 2 ob qib.
Cov thee bitumen feem ntau yog siv rau hauv cov teb hauv qab no:
* Roj: Cov khoom khov kho tuaj yeem sib xyaw nrog cov roj hnyav lossis ua rau hauv cov slurry siv, tuaj yeem ua lub luag haujlwm ntawm kev hloov cov roj hnyav.
Xim: Xim uas ntxiv rosin lossis turpentine thiab cov khoom sau thaum ua roj rau cov tsev lossis cov kav dej uas tsis muaj dej. Nws yog qhov tsim nyog rau cov qauv hlau sab nraum zoov, cov pob zeb thiab cov masonry uas tsis muaj dej thiab txheej tiv thaiv, thiab tuaj yeem pleev xim thiab pleev xim rau ntawm qhov kub thiab txias.
* Kev tsim kho txoj kev, cov ntaub ntawv siv hauv tsev: feem ntau sib xyaw nrog roj av asphalt, thee asphalt thiab roj av asphalt piv rau, muaj qhov sib txawv zoo thiab qhov sib txawv ruaj khov. Cov thee asphalt tsis zoo hauv kev plasticity, tsis ruaj khov kub, brittle thaum lub caij ntuj no, softening thaum lub caij ntuj sov, thiab laus sai.
* Cov Khoom Siv: Ua cov khoom siv electrode, anode paste thiab lwm yam khoom siv carbon, feem ntau yog hloov kho asphalt. Feem ntau, cov asphalt hloov kho yog npaj los ntawm cov asphalt kub nruab nrab. Hauv Suav teb, cov txheej txheem cua sov kettle feem ntau yog siv, thiab roj siv ua roj los ua kom sov asphalt hauv lub reactor. Thaum kawg, cov asphalt hloov kho khov kho tau los ntawm kev sib cais thiab granulation.
* Asphalt coke: cov khoom seem ntawm cov thee asphalt tom qab kub siab retorting lossis qeeb coking. Asphalt coke feem ntau siv ua cov khoom siv raw rau cov ntaub ntawv carbon tshwj xeeb, uas yog qhov tseem ceeb rau kev tsim cov khoom siv semiconductor thiab cov khoom siv hnub ci vaj huam sib luag. Nws yog dav siv ua cov khoom siv electrode rau kev ua kom txhuas, cov khoom siv carbonized rau kev ua hluav taws xob rau lub cub tawg steelmaking thiab cov khoom siv carbon tshwj xeeb rau semiconductor.
* Koob coke: cov asphalt mos mos ua kom zoo los ntawm cov khoom siv raw ua ntej, coking qeeb, calcination kub siab peb cov txheej txheem, feem ntau yog siv rau hauv kev tsim hluav taws xob thiab cov khoom siv carbon tshwj xeeb. Cov khoom ua los ntawm nws cov khoom siv raw yog cov yam ntxwv los ntawm kev tiv taus qis, coefficient nthuav dav thermal qis, tiv taus cua sov muaj zog, lub zog kho tshuab siab thiab tiv taus oxidation zoo.
* Cov roj carbon fiber: cov fiber tshwj xeeb nrog ntau dua 92% cov ntsiab lus carbon tau los ntawm asphalt los ntawm kev ua kom zoo, tig, ua ntej oxidation, carbonization lossis graphitization.
* Roj av, cov pa roj carbon activated, carbon dub thiab lwm yam siv.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-30-2022