IṢẸ́ ỌNÀ
ẸWÀ ÀTI ÌLERA
IṢẸ́ ỌWỌ́
ÀṢÀ ÀTI ÌTÀN
ÌṢERÉ
ÀYÍKÁ
OÚNJẸ ÀTI OHUN MÍMU
REVERSE ENGINEERING
SÁYẸ́ǸSÌ
ERÉ ÌDÁRAYÁ
ÌMỌ̀-Ẹ̀RỌ
ÀWỌN OHUN WÍWỌ̀
Iso-hexanes and Isopentane: Light Straight-Run Gasoline Isomerised over Platinum-Alumina with Hydrogen (Gulf, US 3,071,535)
The lightest straight-run gasoline is mostly straight-chain pentane and hexane, of low octane. Rearranged into their branched forms over a platinum catalyst with hydrogen, they become isopentane and iso-hexanes, high in both research and motor octane.
Result (Gulf's example, barrels per day): from 7,549 of light straight-run gasoline, 2,873 of isopentane and 2,792 of iso-hexanes, plus 1,796 of isoheptanes split off beforehand.
Source: Condrasky & Glazier, US 3,071,535 (Gulf, filed 1959). Not given: temperature, pressure, space velocity. Hydrogen and light hydrocarbons: fire risk. Picture drawn by Youblob.
Ògbóǹtarìgì
1 day
Ìlànà
1
1
Split off the isoheptanes
Split off the isoheptanes
Prefractionate the light straight-run gasoline (C5-190 °F, 7,549 barrels a day) to separate isoheptanes and heavier, 1,796, which go to hydrogen treating, from the C5-C6 paraffins.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Epo bẹntiróò fúyẹ́ ìfọ̀ tààrà7549 parts by volumeÀwọn irinṣẹ́ tí a nílò:
Ohun ìsun tí ó pín
Táńkì ìtọ́jú epo2
2
Split the C5-C6 into pentane and hexane cuts
Split the C5-C6 into pentane and hexane cuts
Distil the C5-C6 fraction into a concentrated normal-pentane cut and a cut concentrated in normal hexane and methylpentanes.
Àwọn irinṣẹ́ tí a nílò:
Ohun ìsun tí ó pín3
3
Isomerise each cut over platinum-alumina with hydrogen
Isomerise each cut over platinum-alumina with hydrogen
Isomerise the two cuts separately over a halogen-promoted platinum-alumina catalyst with hydrogen. Gulf uses off-gas from its platinum reformer, 360,000 cubic feet a day. Gulf gives no temperature or pressure.
Àwọn irinṣẹ́ tí a nílò:
Ohun Ìyára Rífọ̀mù Pílátínọ́mù
Ìkòkò ìṣesí oníhò pẹ̀lú ibùsùn tí kò yí padà
Hydrogen
Ẹ̀rọ Ìwọ̀n Ìtẹ̀
Pirómítà4
4
Fractionate and recycle the unconverted
Fractionate and recycle the unconverted
Fractionate the reactor effluent. Send unconverted normal pentane, normal hexane and methylpentanes back to the reactors. Keep the isopentane (2,873) and iso-hexanes (2,792) for blending; 156 goes to fuel gas.
Àwọn irinṣẹ́ tí a nílò:
Ohun ìsun tí ó pínTáńkì ìtọ́jú epoÀwọn ohun-èlò
1- 7549 parts by volumeÀyè
Ìtọ́nisọ́nà yìí ń ṣe
Blueprint tó jọra
Àwọn blueprint wọ̀nyí pín ìmọ̀ — ọ̀nà, ohun-èlò tàbí ìlànà
Heavy Gas Oil: the 620-1,050 °F Cut from Atmospheric and Vacuum Distillation of Crude Oil (Gulf, US 3,071,535)
láti ọwọ́ Charlie
Ti Ilé-iṣẹ́
1
0
0
0
0
0
Léwu
Platinum Reforming Catalyst: 0.1 % Platinum and 1.5 % Fluorine on Alumina (Haensel, UOP, US 2,479,110)
láti ọwọ́ Charlie
Ti Ilé-iṣẹ́
7
0
0
0
0
0
Reformate: Straight-Run Naphtha over Platinum-Alumina-Fluorine Catalyst at 874 °F and 500 psi (Haensel, UOP, US 2,479,110)
láti ọwọ́ Charlie
Ti Ilé-iṣẹ́
4
0
0
0
0
0
CC0 Àgbègbè Gbogbogbò
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