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UBUKORIKORI
UMUCO N'AMATEKA
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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.
Impuguke
1 day
Amabwiriza
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.
Ibikoresho by'iyi ntambwe:
Lisansi yoroheje ishunguwe ako kanya7549 parts by volumeIbikoresho bikenewe:
Ikinyuza umwuka gitandukanya
Ikigega cyo kubika peteroli2
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.
Ibikoresho bikenewe:
Ikinyuza umwuka gitandukanya3
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.
Ibikoresho bikenewe:
Ikinyuranyamuvuduko cya platini cya reforming
Reyakitori y'imiyoboro ifite igitanda gihamye
Hidorojeni
Igipima Umuvuduko
Pirometero4
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.
Ibikoresho bikenewe:
Ikinyuza umwuka gitandukanyaIkigega cyo kubika peteroliIbikoresho
1- 7549 parts by volumeUmwanya
Ibikoresho bikenewe
7- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
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Blueprint zijyanye
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Heavy Gas Oil: the 620-1,050 °F Cut from Atmospheric and Vacuum Distillation of Crude Oil (Gulf, US 3,071,535)
na Charlie
By'Inganda
8
0
0
0
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Akaga
Platinum Reforming Catalyst: 0.1 % Platinum and 1.5 % Fluorine on Alumina (Haensel, UOP, US 2,479,110)
na Charlie
By'Inganda
12
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)
na Charlie
By'Inganda
8
0
0
0
0
0
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