Intshayelelo

I-Methyl tert-butyl ether (MTBE) yayikade ithathwa njengenxalenye yepetroli ene-octane eninzi engenakutshintshwa kwaye yayibizwa ngokuba "yi-petrochemical yesizukulwana sesithathu" ngeminyaka yoo-1980. Ngenxa yokuba inokunyusa umxholo weoksijini wepetroli engenalo i-lead, yenze ipetroli itshise ngokupheleleyo, inciphise ukukhutshwa kwezinto eziyingozi ezifana ne-carbon monoxide kunye ne-benzene, kwaye ingathatha indawo ye-tetraethyl lead njenge-anti-riot agent, ihlangabezana neemfuno zokuvelisa ipetroli engenalo i-octane eninzi. , okubangela ukuba imfuno yayo ikhule ngokukhawuleza, sisixhobo esifanelekileyo sokudibanisa ipetroli ene-octane ephezulu kwiChemicalbook. I-MTBE yinxalenye efanelekileyo yokuxuba ukuvelisa ipetroli engenalo i-lead, ene-octane eninzi, kunye ne-oxygenated. Ayinakunyusa kuphela inani le-octane yepetroli ngokufanelekileyo, kodwa ikwaphucula ukusebenza kwezithuthi, inciphise umxholo we-CO kwigesi yokukhupha umoya, kwaye inciphise iindleko zokuvelisa ipetroli. Ukongeza, i-methyl tert-butyl ether ikwayinto ebalulekileyo yekhemikhali eluhlaza, enokuphinda iqhekezwe ibe yi-isobutylene kwaye isetyenziswe njengezinto zokwenza irabha kunye nezinye iimveliso zekhemikhali. Kodwa okwangoku, i-MTBE ngokucacileyo iyanciphisa ukungasebenzi kakuhle.

Iimpawu zomzimba nezekhemikhali:

I-Methyl tert-butyl ether, efinyeziweyo njenge-MTBE (methyltert-butylether), inomlinganiselo wokunyibilika we--109°C kunye nomlinganiselo wokubila we-55.2°C. Lulwelo olungenambala, olucacileyo, olune-octane eninzi olunevumba elifana ne-ether. Yenziwe i-Chemicalbook yinxalenye efanelekileyo yokuxuba ipetroli engenalo i-lead, ene-octane eninzi, ene-oxygen, kwaye isetyenziswa kakhulu njengesongezo sepetroli kwihlabathi liphela. Ayinakunyusa kuphela inani le-octane yepetroli ngokufanelekileyo, kodwa ikwaphucula ukusebenza kwezithuthi, inciphise umxholo we-CO kwigesi yokukhupha umoya, kwaye inciphise iindleko zokuvelisa ipetroli.

Ukusetyenziswa

I-Methyl tert-butyl ether (MTBE) isetyenziswa kakhulu njengesongezo sepetroli kwaye ineempawu ezintle kakhulu zokulwa nokukrwitshwa. Iyakwazi ukuxubana kakuhle nepetroli, ifunxa amanzi amancinci, kwaye ayingcolisi okusingqongileyo. I-MTBE inokuphucula iimpawu zokuqala ezibandayo kunye nokusebenza ngokukhawuleza kwepetroli ngaphandle kwemiphumo emibi kwi-vapor lock. Nangona i-methyl tert-butyl ether inexabiso eliphantsi leekhalori, uvavanyo lokuqhuba lubonakalise ukuba ukusebenzisa ipetroli equlethe i-10 Chemicalbook% MTBE kunokunciphisa ukusetyenziswa kwepetroli nge-7% kwaye kunciphise kakhulu inani le-lead kunye ne-CO kwigesi yokukhupha, ngakumbi ukukhutshwa kwe-carcinogenic polycyclic aromatic hydrocarbons. Njengezinto eziluhlaza zokwenziwa kwezinto eziphilayo, i-isobutylene ecocekileyo kakhulu inokuveliswa. Ingasetyenziselwa ukuvelisa i-2-methacrolein, i-methacrylic acid kunye ne-isoprene, njl. Ukongeza, ingasetyenziswa njenge-analytical solvent kunye ne-extraction agent.

Indlela yokuvelisa isebenzisa i-butene exutyiweyo kunye ne-methanol njengezinto eziluhlaza, kwaye yenza i-exothermic reaction xa kukho i-asidi catalyst.

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