1-butene (c₄h₈ (C₄H₈) yog cov nplaim taws, reactive roj uas xav tau nruj kev nyab xeeb kev nyab xeeb. Hauv qab no yog cov kev ceev faj tseem ceeb thiab nquag ua yuam kev hauv nws txoj kev tuav.
1. Kev tiv thaiv kev nyab xeeb tseem ceeb
A. Cov hluav taws & tawg txaus ntshai
FLAMMable tsis tshua muaj cua (flash taw tes: -80℃/ -112℃f).
Lel / Uel: 1.6% -9.3% (tawg ntau yam nyob hauv huab cua).
Autoignition temp .: 385 Degree (725 Qib F).
Kev Tiv Thaiv:
Siv cov tawg - Cov khoom siv pov thawj (piv txwv li, chav kawm I, Division 1 Hluav Taws Xob).
Txhua lub thaaj hauv av los tiv thaiv cov nplaim hluav taws xob zoo li qub.
Tsis qhib cov nplaim taws, haus luam yeeb, lossis cov chaw kub hauv cov chaw cia.
B. Kev Nyab Xeeb Kev Nyab Xeeb
Asphyxiation:
Cov Tshuaj Tiv Thaiv Me Me: Kev nqus tau tej zaum yuav ua rau kiv taub hau, xeev siab (xeev siab (n}}} twa: 250 ppm).
Daim tawv Hu: Liquefied 1-butene tuaj yeem ua rau Frostbite.
C. Cia & Thauj
Cov nkoj siab: khw muag khoom hauv cov hlau lossis steel hlau los yog tsawg dua lossis sib npaug nrog 50 degree).
Qhov cua: Nco ntsoov nyob rau hauv zoo - pa ncho pa, txias chaw deb ntawm tshav ntuj.
Kev sib txuam: Zam Oxidizers (piv txwv li, Chlorine, Peroxides).
Thauj Cov Ntawv Cim: Un1012 (Butylenes), Chav Kawm 2.1 cov roj av.
2. Kev tuav tes ua yuam kev & kev rau txim
| Yuam kev | Kev twv | Kom yog lawm |
|---|---|---|
| Kev txiav li qub yam tsis muaj kev pom | Cov roj ntxiv rau → tawg | Siv cov xab npum lossis cov ntsuas pa |
| Tsis Raws Cai Cov Kab | Residual 1-Butene + Air → Hluav Taws Kub | Purge nrog nitrogen ua ntej txij nkawm |
| Cov ntawv ntim ntau tshaj | Thermal expansion → kev sib xyaw | Ua raws li cov kev txwv ntom ntom (piv txwv li, tsawg dua los yog sib npaug rau 85%) |
| Siv tsis - siv cov ntaub ntawv tshaj | Ntsawsts / Gaskets Kev Txwv EM Leaks | Siv Viton, PTFE, lossis Hlau Stainless |
| Igniting tsis muaj nplaim taws ntes | Flashback → cov khoom puas tsuaj | Nruab cov nplaim taws hauv cov raj xa hluav taws xob |
3. Teb xwm ceev
A. xau lossis txeej
Khiav tawm tsam thaj chaw.
Kev tshem tawm cov chaw tiv thaiv hluav taws xob (hluav taws xob, txim taws).
Ventilate (siv cua tshuab yog nyob hauv tsev).
Tsis txhob cia li muaj kev nyab xeeb (piv txwv li, kaw valve).
B. Hluav Taws
Kev tua hluav taws nrog: CO₂, qhuav tshuaj, lossis ua npuas ncauj (zam cov dav hlau dej).
Yog tias tsis tuaj yeem siv tau: Khiav tawm thiab cia nws hlawv (tiv thaiv cov vapor huab).
C. Thawj pab
Kev nqus tau: txav mus rau cov cua tshiab → ua rau cov pa oxygen yog xav tau.
Daim tawv txog daim tawv nqaij: yaug nrog dej sov so (rau Frostbite, tsis txhob muab tshuaj txhuam).
4. Kev tswj txoj cai
OSHA (US): 29 CFR 1910.119 (Txheej Txheem Kev Tswj Xyuas Kev Nyab Xeeb rau cov pa roj av).
EU ncav cuag: Sau npe hauv EC 203-449-4.
Tuam Tshoj GB Cov Qauv: GB / T 11174 (LPG Kev Ruaj Ntseg Siv rau C4 Sib Xyaw).
Tag
1-butene cov kev pheej hmoo qia los ntawm nws cov nplaim taws thiab kev ntseeg cuav. Cov Ntsiab Lus Qhia Muaj xws li:
Kev Tshawb Nrhiav Lub Nruab Nrab.
Inert gas purging.
Cov neeg ua haujlwm cob qhia hauv cov txheej txheem xwm ceev.
Tsis txhob xav tias "me" xau muaj kev nyab xeeb - Txawm tias cov khoom tawg me me tuaj yeem nres tawg. Nco ntsoov SDS (Ntawv Kev Nyab Xeeb Kev Nyab Xeeb) rau cov nroj tsuag- Cov txheej txheem tshwj xeeb.
Xav tau kev qhia tshwj xeeb lossis nqi? Tiv tauj peb!
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