Qhov sib txawv tseem ceeb ntawm 1 butene thiab 2 butene yog 1-butene muaj ob daim ntawv cog lus ntawm carbon atoms ntawm qhov kawg ntawm cov saw hlau, whereas 2-butene muaj ob daim ntawv cog lus ntawm carbon atoms ntawm nruab nrab ntawm compound.
Butene yog cov organic compound uas muaj cov tshuaj formula C4H8. "Butylene" yog ib lub ntsiab lus rau tib lub ntsiab lus. Cov tshuaj no muaj plaub carbon atoms thiab yim hydrogen atoms. Muaj ob daim ntawv cog lus ntawm ob lub pa roj carbon atom. Yog li ntawd, nws yog ib tug unsaturated compound. Nws poob rau hauv qeb ntawm alkenes. Nws yog cov roj tsis muaj xim ntawm chav tsev kub thiab siab. Peb tuaj yeem pom cov roj no ua cov khoom me me hauv cov roj av. Yog li, peb tuaj yeem tau txais cov khoom sib xyaw no los ntawm kev tawg catalytic hauv lub refinery.
Vim muaj ob daim ntawv cog lus, qhov sib xyaw no muaj isomers. Muaj plaub lub isomers loj: lawv yog, But-1-ene, (2Z)-but-2-ene, (2E)-but-2-ene thiab 2-methylprop-1-ene (isobutylene). Tag nrho cov isomers no muaj nyob ua pa. Peb tuaj yeem ua kua dej los ntawm ob txoj hauv kev: peb tuaj yeem txo qhov kub lossis nce siab. Cov roj no muaj cov ntxhiab tsw txawv. Ntxiv mus, lawv yog cov heev flammable. Qhov ob daim ntawv cog lus ua rau cov tebchaw no muaj zog dua li alkanes nrog cov lej zoo sib xws ntawm carbon atoms. Thaum xav txog cov kev siv ntawm qhov sib xyaw no, peb tuaj yeem siv lawv ua monomers hauv kev tsim cov polymers, hauv kev tsim cov roj hmab hluavtaws, hauv kev tsim cov HDPE thiab LLDPE, thiab lwm yam.
1-Butene yog dab tsi?
1-butene yog cov organic compound uas muaj cov tshuaj formula CH3CH2CH=CH2. Nws tseem hu ua 1-butylene. Nws zoo nkaus li cov roj tsis muaj xim uas tuaj yeem ua rau cov kua tsis muaj xim. Peb tuaj yeem faib cov tshuaj no ua cov kab alpha-olefin.
Daim duab 01: Cov Qauv Tshuaj ntawm 1-Butene
Peb tuaj yeem tsim 1-butene los ntawm kev sib cais los ntawm crude C4 refinery kwj thiab los ntawm ethylene dimerization. Kev sib cais los ntawm C4 refinery tsim kev sib xyaw ntawm 1- thiab 2- butane compounds. Cov txheej txheem ethylene dimerization tsim tsuas yog lub davhlau ya nyob twg alkene. Peb tuaj yeem distil cov khoom muab los ntawm cov txheej txheem no kom tau txais cov khoom lag luam purity siab heev. Kwv yees li ntawm 12 billion kilograms ntawm 1-butene tau tsim nyob rau hauv 2011.
2-Butene yog dab tsi?
2-butene yog cov organic compound uas muaj cov tshuaj formula CH3CH=CHCH3. Nws yog acyclic alkene muaj plaub carbon atoms. Peb tuaj yeem txheeb xyuas nws yog qhov yooj yim alkene uas qhia cis-trans isomerism. Hauv lwm lo lus, 2-butene tuaj yeem pom nyob rau hauv ob lub geometric isomers li cis isomer thiab trans isomer. Cov tshuaj no muaj npe raws li cis-2-butene thiab trans-2-butene.
Daim duab 02: Cis-2-Butene
2-butene yog petrochemical compound uas tsim los ntawm cov txheej txheem catalytic cracking ntawm cov roj crude. Ntxiv mus, peb tuaj yeem tsim nws los ntawm dimerization ntawm ethylene. Feem ntau, nws yog qhov nyuaj heev los cais ob isomers ntawm 2-butene los ntawm distillation. Qhov no yog vim qhov sib thooj ntawm cov ntsiab lus kub ntawm cov isomers.
Muaj kev siv sib txawv ntawm 2-butene, uas suav nrog kev tsim cov roj av thiab butadiene, tsim cov kuab tshuaj butanone los ntawm hydration mus rau 2-butanol ua raws li oxidation, thiab lwm yam. Nyob rau hauv feem ntau cov ntawv thov kev lag luam, kev sib cais ntawm ob daim ntawv isomeric los ntawm ib leeg yog qhov tsis tsim nyog vim tias ob qho tib si isomers coj zoo sib xws hauv cov kev xav tau.
Qhov txawv ntawm 1 Butene thiab 2 Butene yog dab tsi?
Qhov sib txawv tseem ceeb ntawm 1-butene thiab 2-butene yog 1-butene muaj ob daim ntawv cog lus ntawm carbon atoms ntawm qhov kawg ntawm cov saw hlau, whereas 2-butene muaj ob daim ntawv cog lus ntawm carbon atoms ntawm nruab nrab. ntawm lub compound.
Cov ntawv qhia hauv qab no nthuav tawm qhov sib txawv ntawm 1 butene thiab 2 butene hauv daim ntawv teev npe rau ib sab ntawm kev sib piv.
Summary – 1 Butene vs 2 Butene
1-butene yog cov organic compound uas muaj cov tshuaj formula CH3CH2CH=CH2, hos 2-butene yog cov organic compound uas muaj cov tshuaj formula CH3CH=CHCH3. Qhov sib txawv tseem ceeb ntawm 1 butene thiab 2 butene yog 1-butene muaj ob daim ntawv cog lus ntawm carbon atoms ntawm qhov kawg ntawm cov saw hlau, whereas 2-butene muaj ob daim ntawv cog lus ntawm carbon atoms ntawm nruab nrab ntawm cov compound.
