Petroleum Refining Engineering

5 ✘ 15 ✘ 25 ✘ 35 ✔

Aromatics ✘ i-paraffins ✘ Naphthene ✘ Olefins ✔

H2SO4 ✘ H3PO4 ✘ Both (a) and (b) ✘ AlCl3 ✔

Propane & butane ✘ Methane & ethane ✘ High boiling olefins ✘ High boiling naphthenes ✔

With increase in the reactor pressure, octane number of gasoline decreases ✘ With increase in the reactor temperature, gasoline yield decreases for a given conversion ✘ Percentage conversion increases with increase in the catalyst to oil ratio ✘ All (a), (b) and ✔

1.2 ✘ 12 ✘ 120 ✘ 700 ✔

Pensky Martens apparatus ✘ Ramsbottom apparatus ✘ Saybolt viscometer ✘ Conradson apparatus ✔

5-10

✘

30-80

✘

150-250

✘

350-400

✔

Uses natural gas as feed ✘ Is carried out at atmospheric pressure ✘ Produces fuel oil of lower viscosity ✘ Produces gasoline only ✔

Sulphur content ✘ Viscosity ✘ Aniline point ✘ Flash point ✔