ART
BEAUTY & WELLNESS
CRAFT
CULTURE & HISTORY
ENTERTAINMENT
ENVIRONMENT
FOOD & DRINKS
REVERSE ENGINEERING
SCIENCES
SPORTS
TECHNOLOGY
WEARABLES
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.
Expert
1 day
Instructions
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.
Materials for this step:
Light Straight-Run Gasoline7549 parts by volumeTools needed:
Fractionating Still
Oil Storage Tank2
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.
Tools needed:
Fractionating Still3
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.
Tools needed:
Platinum Reforming Catalyst
Fixed-Bed Tubular Reactor
Hydrogen
Pressure Gauge
Pyrometer4
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.
Tools needed:
Fractionating StillOil Storage TankMaterials
1- 7549 parts by volumePlaceholder
This blueprint makes
Related Blueprints
These blueprints share knowledge with this one — techniques, materials, or principles that connect them in the learning graph.
Heavy Gas Oil: the 620-1,050 °F Cut from Atmospheric and Vacuum Distillation of Crude Oil (Gulf, US 3,071,535)
by Charlie
Industrial
0
0
0
0
0
0
Hazardous
Platinum Reforming Catalyst: 0.1 % Platinum and 1.5 % Fluorine on Alumina (Haensel, UOP, US 2,479,110)
by Charlie
Industrial
0
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)
by Charlie
Industrial
0
0
0
0
0
0
CC0 Public Domain
This blueprint is released under CC0. You are free to copy, modify, distribute, and use this work for any purpose, without asking permission.
Support the Maker by purchasing products through their Blueprint where they earn a Maker Commission set by Vendors, or create a new iteration of this Blueprint and include it as a connection in your own Blueprint to share revenue.