Dab tsi yog hydrocarbons (HCs)

Hydrocarbons yog cov organic tebchaw uas tag nrho tsim los ntawm tsuas yog ob hom atoms - carbon thiab hydrogen. Hydrocarbons yog ib txwm tshwm sim thiab tsim lub hauv paus ntawm cov roj av, roj av, roj av, thiab lwm yam tseem ceeb ntawm lub zog. Lawv yog cov combustible heev thiab tsim carbon dioxide, dej, thiab cua sov thaum lawv hlawv. Yog li ntawd, hydrocarbons muaj txiaj ntsig zoo los ntawm cov roj. Feem ntau, hydrocarbons yog cov roj uas tsis muaj xim uas muaj ntxhiab tsw ntxhiab heev.

 

Plaub hom hydrocarbons yog dab tsi?

Hydrocarbons tuaj yeem muaj cov qauv yooj yim lossis cov qauv sib txawv thiab feem ntau tuaj yeem muab faib ua plaub pawg, xws li alkanes, alkenes, alkynes, thiab aromatic hydrocarbons.

Dab tsi yog qhov kev siv ntawm hydrocarbons?

• Hydrocarbons xws li propane thiab butane yog siv rau kev lag luam roj hauv daim ntawv ntawm Liquefied Petroleum Gas (LPG). Benzene, ib qho yooj yim tshaj plaws aromatic hydrocarbons, ua cov khoom siv raw rau kev sib xyaw ntawm ntau cov tshuaj hluavtaws.
• Cov no yog siv los ua cov roj combustible, xws li: Methane uas yog cov khoom siv roj ntsha.
• Roj av, dav hlau roj thiab naphtha yog aliphatic hydrocarbons uas tau siv ntau hauv kev lag luam sib txawv.
• Roofing compounds bitumen los yog pavement muaj pes tsawg leeg thiab ntoo preservatives yog ntau hom hydrocarbons.
• Lawv daim ntawv thov raws li loj-scale tsis-roj xws li ethane thiab propane yog tau los ntawm roj av thiab natural gas. Ob cov pa roj no tuaj yeem hloov mus rau hauv ethylene thiab propylene.
• Tshwj xeeb hydrocarbons xws li sib tov ntawm benzene, toluene thiab xylene isomers paub thiab lawv noj yog heev.
• Ib txwm tshwm sim hydrocarbons muaj nyob rau hauv stingless Brazilian muv uas tawm tshwj xeeb hydrocarbon scents thiab pab txiav txim siab ntawm cov txheeb ze los ntawm non-khi.

 

Dab tsi yog hydrocarbon refrigerants?

 Hydrocarbon refrigerants yog dab tsi hu ua 'natural refrigerants'. Lawv yog cov tsis muaj tshuaj lom, tsis yog O-zone depleting, thiab muaj lub ntiaj teb no warming peev xwm tsawg heev. Nyob rau sab saum toj ntawm txhua yam lawv yog ib qho ntawm cov khoom siv hluav taws xob zoo tshaj plaws hauv lub ntiaj teb niaj hnub no.

 Lub sijhawm ntawm cov roj fluorinated cov tub yees tau los txog qhov kawg thiab lawv txhua tus yuav raug txiav tawm thoob plaws ntiaj teb nyob rau ob peb xyoos tom ntej no. Cov tub yees hydrocarbon yuav coj lawv qhov chaw. Hydrocarbons twb tau nrov thoob plaws Tebchaws Europe thiab Asia thiab feem ntau pom tau siv hauv daim ntawv thov tub yees. Raws li ib txwm muaj, Tebchaws Meskas tau poob qis dua lwm lub ntiaj teb thaum nws los txog rau lwm cov tub yees ... tab sis muab sijhawm rau peb thiab koj yuav pib pom cov hydrocarbons tshwm sim ntau dua thoob plaws Tebchaws Meskas.

 Qee qhov piv txwv ntawm hydrocarbon coolant yog raws li hauv qab no:

 R-290 Nws(Propane)

 R-600 ua(Isobutane)

 R-1150 Nws(Ethene / Ethylene)

 R-1270 Nws(Propene / propylene)

 R-170(Ethane)

 Ntau yam sib tov thiab sib xyaw ntawm cov khoom saum toj no.