Benzene → Cumene

HRID 1742122Notes

Reaction equation

HRID 1742122 reaction equation
[CH3:1][CH2:2][CH3:3].C=CC.[CH:7]1[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1>>[C:7]1([CH:2]([CH3:3])[CH3:1])[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1

Participants

4

Reactant 3

HCID 241BenzeneHCID 6334PropaneHCID 8252Propylene2×

Product 1

HCID 7406Cumene

Procedure

The first reactor effluent stream enters a heat exchanger 44. In the heat exchanger 44, the first reactor effluent stream exchanges heat indirectly with a flashed depropanizer bottoms stream from a line 42. The cooled first reactor effluent stream passes through a line 26 and is admixed with a mixture of propane and propylene that enters the process in a line 22. This produces an alkylation zone feed stream carried by a line 28. This stream may be heated in a heat exchanger or a heater, which is not shown, and enters a second reactor 30. The feed stream contacts a zeolite catalyst maintained at alkylation-promoting conditions to effect the reaction of at least a major portion of the propylene with benzene to form cumene. A second reactor effluent stream comprising benzene, cumene, and poly-alkylated hydrocarbons exits the second reactor 30 in a line

Workup

  1. temperatureIn the heat exchanger 44, the first reactor effluent stream exchanges heat indirectly with a flashed depropanizer
  2. temperatureThe cooled first reactor effluent stream
  3. customThis produces an alkylation zone feed stream
  4. temperatureThis stream may be heated in a heat exchanger

Sources & evidence

ORD record
ord-f22ba0e63ad84f5cb96bd861d4d294a3
Source dataset
uspto-grants-1994_08
Patent number
US05336821

Reaction notes

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