2024 Tus sau: Howard Calhoun | [email protected]. Kawg hloov kho: 2023-12-17 10:28
Cov roj av kua roj yog cov khoom sib xyaw thoob ntiaj teb sib xyaw ntawm propane, butane thiab ib qho me me ntawm unsaturated hydrocarbons tau txais thaum lub sij hawm roj ntau lawm los yog nws cov tom ntej ua. Nyob rau hauv txoj cai, xws li ib tug sib tov yog ib tug by-product ntawm roj ntau lawm, yog li hais, ib tug zoo lawm. Thaum lub sij hawm txoj kev loj hlob ntawm "dub kub" deposits, txuam roj av (APG) yog tso tawm, uas yog ces ua tiav rau hauv liquefied roj ntawm cov lag luam ntawm tus coj profile.
Rau txhua tuj roj av, muaj los ntawm tsib caug mus rau tsib puas cubic meters ntawm APG, uas yog xa nrog rau cov khoom tseem ceeb mus rau lub refinery, qhov twg nws yog compressed (liquefied). Liquefied gas yog tau los ntawm NGL (ib feem dav ntawm lub teeb hydrocarbons), uas yog tawm los ntawm APG. Qhov sib tov no ces compressed nyob rau hauv siab tsis hloov qhov kub.
Kua roj rau cov ntawv thov kev lag luam thiabcua sov ntawm ntau lub tsev, yog khaws cia rau hauv av tshwj xeeb lossis hauv av tso tsheb hlau luam - cov neeg tuav roj. Hais txog cov nqi ntawm lub zog tso tawm, roj los ntawm cov khoom siv hydrocarbon tsuas yog thib ob rau cov pa roj carbon monoxide mainstream.
Cov kua dej hydrocarbons yog cov khoom siv tseem ceeb rau kev lag luam petrochemical. Rau kev tsim khoom ntawm ntau yam khoom, xws li gases raug rau cov txheej txheem ntawm pyrolysis, uas yuav siv qhov chaw ntawm ultrahigh kub. Yog li ntawd, cov tebchaw ntawm olefins (ethylene, propylene, thiab lwm yam) yog tsim - acyclic unsaturated hydrocarbons nrog ib ob daim ntawv cog lus ntawm atoms. Tom qab ntawd cov sib xyaw ua ke no tau hloov mus rau ntau hom polymers thiab yas (polyethylene, polypropylene thiab lwm yam) los ntawm txheej txheem polymerization. Yog li, cov thawv ntim khoom peb siv txhua hnub, cov khoom siv pov tseg thiab ntau yam khoom siv niaj hnub tau ua kua roj ib zaug.
Tab sis lub hom phiaj tseem ceeb ntawm cov roj sib tov sib txawv. Nyob rau hauv lub teeb ntawm ib co teeb meem nyob rau hauv lub tshav pob ntawm lub zog tiv thaiv keeb kwm yav dhau ntawm kev lag luam ntsoog thiab hais txog kev txhawj xeeb ntawm lub ntiaj teb no zej zog rau ib puag ncig nyob rau hauv lub ntiaj teb no, liquefied roj tau dhau los ua qhov tseem ceeb thiab yuav sai sai no coj txoj hauj lwm ua ib tug lub cev muaj zog roj. Environmentally phooj ywg roj, uas yog ib qho tseem ceeb.
Tam sim no, lub ntiaj teb cov tsheb thauj neeg khiav ntawm cov kua dej hydrocarbons muaj ntau dua 20 lab lub tsheb. Kuj tseem muaj LPGNws yog dav siv rau cua sov cov tsev nyob thiab cov tsev loj loj ntawm cov tuam txhab lag luam, rau ziab, vuam thiab txiav hlau. Tsis tas li ntawd, nws tuav txoj haujlwm muaj zog hauv kev ua liaj ua teb, qhov chaw uas nws siv los hlawv cov nroj tsuag thiab kab tsuag.
Qhov zoo tshaj plaws ib puag ncig, kev lag luam thiab cov thev naus laus zis thev naus laus zis uas cov roj av liquefied muaj tag nrho ua rau nws muaj lub zog zoo tagnrho rau tam sim no thiab yav tom ntej. Nws muaj peev xwm daws tau qhov teeb meem ntawm lub zog thiab ib puag ncig ntawm tib neeg tau ntau xyoo.
Pom zoo:
Metrologist yog txoj haujlwm ntawm lub neej yav tom ntej? Leej twg yog tus kws ntsuas ntsuas?
Metrology yog ib qho kev nthuav dav thiab cog lus kev tshawb fawb, suav nrog yuav luag txhua ceg ntawm engineering. Metrologists yog nyob rau hauv kev thov ntawm txhua lub tuam txhab kev lag luam uas siv cov cuab yeej siv. Leej twg yog tus kws ntsuas ntsuas, vim li cas thiaj xav tau txoj haujlwm no?
Hom lub zog: tsoos thiab lwm yam. Lub zog ntawm lub neej yav tom ntej
Txhua qhov chaw ntawm lub zog uas twb muaj lawm tuaj yeem muab faib ua kom paub tab, txhim kho thiab nyob rau theem ntawm kev kawm theoretical. Qee cov thev naus laus zis muaj rau kev siv txawm tias hauv kev lag luam ntiag tug, thaum lwm tus tsuas tuaj yeem siv los ua ib feem ntawm kev txhawb nqa kev lag luam
Biotechnologist yog txoj haujlwm ntawm lub neej yav tom ntej. Description, pros thiab cons, xyuas
Lub xyoo dhau los tau tso tseg qhov kev tshawb pom ntawm qhov chaw. Nyob rau lub sijhawm tam sim no, cov thev naus laus zis tshiab tau txhim kho sai, cov khoom tsim tau raug qhia rau hauv lub neej txhua hnub. Thiab nws zoo li tsis ntev los no, cov cuab yeej siv niaj hnub no yog ib qho kev tsim tawm ntawm cov kws sau ntawv keeb kwm science. Tam sim no yog lub sijhawm ntawm cov thev naus laus zis tshiab thiab lub sijhawm
Dab tsi yog Brent thiab Urals roj yav tom ntej. Roj yav tom ntej trading
Roj yav tom ntej yog cov ntawv cog lus uas nthuav dav txhua yam kev yuav khoom lossis muag khoom. Kev lag luam yav tom ntej nrog lub peev xwm los kwv yees tus nqi txav tuaj yeem nqa cov nyiaj tau los zoo
Syngas yog lub roj ntawm lub neej yav tom ntej
Kev paub zoo hauv kev tsim cov ersatz tau txais hauv thawj ib nrab ntawm lub xyoo pua nees nkaum, lub teb chaws Yelemees. Coal ua pov thawj los ua ib qho khoom noj uas tsim nyog rau kev tsim cov khoom siv hluavtaws hydrocarbons, lub ntsiab ntawm cov khoom siv hluavtaws
