Benzene → Cumene

HRID 379357Notes

Reaction equation

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

Participants

Reactant 2

HCID 241Benzene

HCID 8252Propylene

Product 1

HCID 7406Cumene

Procedure

The experimental setup of Example 1 is employed in the alkylation of benzene with propylene to form cumene, with the exception of the following changes. The pretreatment bed containes 20 g mordenite catalyst instead of 10 g. Benzene flow over the guard bed is 40 hr−1. Benzene flow over the alkylation catalyst is 800 hr−1. Propylene flow into the alkylation reactor is 12 hr−1. Combined propylene and benzene flow through the alkylation reactor is 812 hr−1. Benzene/propylene molar ratio is 66.7. Both the pretreatment zone and alkylation zone are started at 150° C. FIG. 2 shows the effect of varying the temperatures of the pretreatment zone and the alkylation reactor on the yield of cumene.

Sources & evidence

ORD record: ord-8aa08926300649e0aa23972a01b10fbb
Source dataset: uspto-grants-2001_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06297417B1

Reaction notes

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