Benzene → Cumene

HRID 1578190Notes

Reaction equation

HRID 1578190 reaction equation
[CH2:1]=[CH:2][CH3:3].[CH:4]1[CH:9]=[CH:8][CH:7]=[CH:6][CH:5]=1>>[CH:2]([C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][CH:5]=1)([CH3:3])[CH3:1]

Participants

3

Reactant 2

HCID 241BenzeneHCID 8252Propylene

Product 1

HCID 7406Cumene

Procedure

In a manner similar to that described in Example 4, 100 ml (73.4 g) of Reformate Gasoline, a hydrocarbon mixture rich in aromatics, was combined with 10 ml (6.2 g) of propylene and 4 g of powdered ZSM-12 catalyst in the autoclave. Samples were withdrawn and analyzed at various time periods. Results are summarized in Table V. A rapid reaction occurred which preferentially removed benzene by alkylation to produce isopropylbenzene. An additional 10 ml (6.1 g) of propylene was added between Runs 3 and 4, resulting in further reductions in benzene concentration. Primary reaction products were isopropylbenzene and isopropyltoluene. Over 70% of the benzene was removed by the second treatment. The propylene fed was consumed to produce liquid alkylation product with relatively high octane value.

Workup

  1. customSamples were withdrawn
  2. customResults
  3. customA rapid reaction

Sources & evidence

ORD record
ord-13487f95b445491c8dcb9946015cdb55
Source dataset
uspto-grants-1981_09
Patent number
US04291185

Reaction notes

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