Cumene-phenol complex with thermal oxidation system

A process for producing phenol comprising:

• oxidizing a fresh cumene feed stream in an oxidation unit section to form an oxidation product stream comprising cumene hydroperoxide (CHP), dimethylphenylcarbinol (DMPC), and cumene, and at least one of an oxidation waste water stream, an oxidation spent air stream, and a decanter vent stream;
• concentrating the oxidation product stream in a CHP concentration unit section to form a concentrated CHP stream and a concentration vent gas stream;
• decomposing the concentrated CHP stream in a decomposition unit section using a decomposition acid to form an acidic crude product stream comprising phenol, acetone, cumene, and AMS;
• neutralizing the acidic crude product with a neutralization agent in a neutralization unit section to form a neutralized crude product stream;
• fractionating the neutralized crude product stream in an acetone-phenol fractionation unit section into a fractionation cumene-AMS-phenol stream, and at least one of a fractionation phenolic water stream, a fractionation organic product stream, a fractionation waste water stream, and a fractionation hydrocarbon vent gas stream;
• separating the fractionation cumene-AMS-phenol stream in a phenol recovery unit section into a cumene-AMS feed stream, and at least one of a recycled sprung phenol stream comprising phenol and cumene, and a phenolic waste water stream;
• hydrogenating the cumene-AMS feed stream in an AMS hydrogenation unit section to form a MSHP recycled cumene stream;
• at least one of:
• introducing at least one of the fractionation organic product stream from the fractionation unit section, a fuel gas knockout drum hydrocarbon liquid stream from a fuel gas knockout drum, and a spent air knockout drum liquid stream from a spent air knockout drum into a hydrocarbon buffer vessel;
• introducing at least one of an AMS hydrogen vent gas stream from the AMS hydrogenation unit section, a hydrocarbon buffer vessel vent gas stream from the hydrocarbon buffer vessel, a phenolic vent gas stream from a phenolic water vessel, and a non-phenolic vent gas stream from a non-phenolic water vessel into the fuel gas knockout drum;
• introducing at least one of:
• the fractionation waste water stream the acetone-phenol fractionation unit section, the phenolic waste water stream from the phenol recovery unit section, and a skimmed water phase from the hydrocarbon buffer vessel into a phenolic water vessel;
• introducing at least one of the oxidation waste water stream from the oxidation unit section and a benzene column water stream from a cumene production unit into a non-phenolic water vessel;
• and
• thermally oxidizing one or more of:
• a mixed hydrocarbon waste stream from the hydrocarbon buffer vessel, a burner fuel gas stream from the fuel gas knockout drum, a phenolic water stream from the phenolic water vessel, and a non-phenolic water stream from the non-phenolic water vessel in a thermal oxidation system.