Iran LPG

Iran LPG

The process provided by this invention can produce high yields of LPG rich in propylene and butylenes, meanwhile produce high yield of gasoline which has enhanced antiknocking ability and stability; and also produce diesel fraction, its quality is compatible to that produced by conventional fluid catalytic cracking process. Riser pilot plant results show the yields(based on feed) as follows: LPG 30˜40 wt%, in which 67˜75 parts by weight are propylene and butylenes (i.e. total yield of propylene plus butylenes amounted to 20˜30 wt%); C5 + gasoline yields 45˜55 wt% with RONC of 91˜95, motor octane number(MONC) of 80˜84, induction period of 500˜1000 minutes and existent gum of 0˜3 mg/100 ml. LPG plus total liquid products are high up to 90 wt%.LPG to H2 ˜C2 ratio on weight basis is up to 8˜13:1.

LPG specification.

 

C2 hydrocarbon

% vol

Nil

C3 hydrocarbon

% vol

 

C4 hydrocarbon

% vol

 

C5 hydrocarbon

% vol

2

Hydrogen sulphide

-

Negative

Mercaptan sulphur (max)

g/ m3

0.23

Odorizing Agent

g/ m3

12

 

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