Linear hte branch paraffin ni hpe zeolite molecule sieve hte garan ginhka mai ai. Paraffin gaw petrochemicals hte downstream fine chemicals ni hta jai lang ai lam hte manu n bung ai, linear hte branched paraffin ni hpe garan ginhka ai gaw, grau tsaw ai hpaga lam hta jai lang ai atsam hte sut masa akyu ni hpe lu la mai ai.
Hpa Majaw Linear Hte Branch Paraffin Hpe Garan Ra Ai Kun?
Linear paraffins (normal alkanes (sh) n-paraffins ngu nna mung shamying ai) hte branched paraffins (isomeric alkanes (sh) i-paraffins ngu nna mung shamying ai) ni gaw, sau htu shapraw ai bungli ni hta ahkyak ai arung arai ni rai nna, shanhte hpe garan ginhka ai lam gaw, manu dan ai arung arai ni hte arung arai ni hpe galaw shapraw na matu ahkyak kaba rai nga ai.
Linear paraffin ni a matu, shanhte a n-gun grau law ai hte octane nambat ni yawm ai (anti-hpyen n-gun) nga ai. Shanhte gaw, ethylene hte propylene hpe shapraw na matu, n-gun rawng ai arung arai ni hpe garan ginhka ai, n-gun rawng ai alkane hka ja ai baw ni hte laksan tsi mawan ni hpe lajang ai zawn re ai, tsi mawan raw material ni hku nna grau htap htuk nga ai.
Branched paraffin ni a matu, shanhte a hka n-gun yawm ai, octane n-gun grau law ai, wan hkru ai lam grau hkum tsup ai. Shanhte gaw wan sau arung arai ni hku nna grau htap htuk ai, ga shadawn, gasoline hpe kayau nna octane nambat jat ai, nbungli sau, san seng ai sau, etc.
Linear hte Branch Paraffin hpe gara hku garan ginhka na kun?
Chye da ai hte maren, linear paraffin molecule ni a ahkyak ai n-gun gaw 4.9 angstrom rai nna, branched paraffin a n-gun gaw 5 angstrom hta grau kaba ai. Dai majaw, anhte gaw 5A ngu ai zeolite molecular sieve ni a steric effect hpe lang nna, linear hte branched paraffin ni hpe garan ginhka lu na re.
Kaja ai paraffin ni (n-butane hte n-hexane zawn re ai ni) gaw linear hkrang ni nga ai rai nna, kaji ai hte n-gun n law ai majaw, 5A molecular sieve a n-gup magap ni de shang lu ai. Bai nna, isomeric paraffin ni (iso-butane hte iso{5}}hexane zawn re ai ni gaw, branch nsam rawng ai, n-gun kaba ai (sh) n bung ai hkrang ni nga ai rai nna, 5A ngu ai n-gun rawng ai n-gun rawng ai n-gun rawng ai n-gun rawng ai shingnip ni de n mai shang ai.
Paraffin molecule ni gaw molecule shingnip ni de shang wa ai shaloi, 5A molecule shingnip ni gaw, shingra tara paraffin ni hpe hkap la ai; isomeric paraffin ni gaw n-gup n-gu ni de n shang lu nna, gas (sh) ntsin n-gun hta sha naw nga nga ai. Ndai hku nna, 5A molecular sieve ni hte n-gun rawng ai paraffin hte isomeric paraffin ni hpe garan ginhka lu ai.
Linear hte branched paraffin ni hpe garan ginhka na matu molecular sieve ni
Hpa majaw nga yang, 5A zeolite molecular sieve gaw linear hte branched paraffin ni hpe garan ginhka na matu grai kaja ai. 5A molecular sieve a pore kaba ai gaw angstrom 5 daram sha re. Shanhte a kaba ai hte steric pat shingdang ai lam grai law ai majaw, branched paraffin ni gaw 5A molecular sieve a n-gup magap ni de n shang lu ai majaw, n-gun n rawng mat na re.
5A zeolite molecular sieve hpe lang nna linear hte branched paraffin ni hpe garan ginhka lu ai, n-gun ja ai linear paraffin n-gun dat ni hpe (n-pentane hte n{2}}hexane zawn re ai) shapraw lu nna, isomerization lata la ai lam hpe mung grau kaja hkra galaw lu ai.