Hoʻolauna

Ua manaʻo ʻia ʻo Methyl tert-butyl ether (MTBE) he ʻāpana gasoline octane kiʻekiʻe hiki ʻole ke hoʻololi ʻia a ua kapa ʻia ʻo ia ka "petrochemical hanauna ʻekolu" i nā makahiki 1980. No ka mea hiki iā ia ke hoʻonui i ka nui o ka oxygen o ka gasoline unleaded, e hoʻopau piha i ka gasoline, e hōʻemi i ka hoʻokuʻu ʻana o nā mea ʻino e like me ke kalapona monoxide a me ka benzene, a hiki ke pani i ke kēpau tetraethyl ma ke ʻano he mea anti-riot, hoʻokō ia i nā koi no ka hana ʻana i ka gasoline unleaded octane kiʻekiʻe. , e hoʻoulu ana i kona koi e ulu wikiwiki, he mea hoʻohui gasoline octane kiʻekiʻe kūpono no Chemicalbook. ʻO MTBE kahi ʻāpana hui kūpono no ka hana ʻana i ka gasoline unleaded, octane kiʻekiʻe, a me ka oxygenated. ʻAʻole hiki iā ia ke hoʻonui pono i ka helu octane o ka gasoline, akā hoʻomaikaʻi pū i ka hana kaʻa, hoʻemi i ka nui o CO i loko o ke kinoea hoʻopau, a hoʻemi i nā kumukūʻai hana gasoline. Eia kekahi, ʻo ka methyl tert-butyl ether he mea maka kemika koʻikoʻi hoʻi, hiki ke hoʻokaʻawale hou ʻia i isobutylene a hoʻohana ʻia ma ke ʻano he mea maka no ka rubber a me nā huahana kemika ʻē aʻe. Akā i kēia manawa, ke hōʻemi nei ʻo MTBE i ka hiki ke hoʻemi.

Nā waiwai kino a me nā kemika:

ʻO Methyl tert-butyl ether, i hoʻopōkole ʻia ʻo MTBE (methyltert-butylether), he -109°C kona wahi heheʻe a he 55.2°C kona wahi paila. He wai ʻole kala, moakaka, kiʻekiʻe-octane me kahi ʻala e like me ka ether. Hana ʻia ʻo Chemicalbook kahi ʻāpana hoʻohuihui kūpono no ka gasoline oxygenated ʻole kēpau, kiʻekiʻe-octane, a ua hoʻohana nui ʻia ma ke ʻano he mea hoʻohui gasoline ma ka honua holoʻokoʻa. ʻAʻole hiki iā ia ke hoʻonui wale i ka helu octane o ka gasoline, akā hoʻomaikaʻi pū i ka hana o ke kaʻa, hoʻemi i ka nui o CO i loko o ke kinoea hoʻopau, a hoʻemi i nā kumukūʻai hana gasoline.

Hoʻohana

Hoʻohana nui ʻia ʻo Methyl tert-butyl ether (MTBE) ma ke ʻano he mea hoʻohui gasoline a he mau waiwai anti-knock maikaʻi loa. Loaʻa iā ia ka miscibility maikaʻi me ka gasoline, omo ka wai liʻiliʻi, a ʻaʻole hoʻohaumia i ke kaiapuni. Hiki i ka MTBE ke hoʻomaikaʻi i nā ʻano hoʻomaka anu a me ka hana wikiwiki o ka gasoline me ka ʻole o nā hopena maikaʻi ʻole ma ka laka mahu. ʻOiai he haʻahaʻa ka waiwai calorific o ka methyl tert-butyl ether, ua hōʻoia nā hoʻokolohua hoʻokele e hiki i ka hoʻohana ʻana i ka gasoline i loaʻa ka 10 Chemicalbook% MTBE ke hōʻemi i ka hoʻohana ʻana i ka wahie ma 7% a hōʻemi nui i ka nui o ke kēpau a me ka CO i loko o ke kinoea hoʻopau, ʻoiai ka hoʻokuʻu ʻana o nā carcinogenic polycyclic aromatic hydrocarbons. hoʻemi. Ma ke ʻano he mea maka no ka synthesis organik, hiki ke hana ʻia ka isobutylene maʻemaʻe kiʻekiʻe. Hiki ke hoʻohana ʻia e hana i ka 2-methacrolein, methacrylic acid a me isoprene, a pēlā aku. Eia kekahi, hiki ke hoʻohana ʻia ma ke ʻano he mea hoʻoheheʻe analytical a me ka mea unuhi.

Hoʻohana ke ʻano hana i ka butene i hui pū ʻia a me ka methanol ma ke ʻano he mea maka, a hana i kahi hopena exothermic i ke alo o kahi mea hoʻoulu waikawa.

ʻIke Hoʻokaʻaʻike

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