A method of producing phenol and acetone can comprise: alkylating benzene with a C.sub.2-6 alkyl source in the presence of a zeolite catalyst to produce a C.sub.8-12 alkylbenzene; oxidizing the C.sub.8-12 alkylbenzene in the presence of an oxygen containing gas to produce a C.sub.8-12 alkylbenzene hydroperoxide; cleaving decomposing the C.sub.8-12 alkylbenzene hydroperoxide in the presence of an acid catalyst to produce phenol, a C.sub.3-6 ketone, and undesirable side products such as, but not limited to acetaldehyde, DMBA, acetophenel one, AMS, AMS dimers, unidentified heavies, or a combination comprising at least one of the foregoing; and monitoring a concentration of the C.sub.8-12 alkylbenzene hydroperoxide in a process stream of a reactor in real time at a temperature and a pressure of the process stream; and in real time, controlling a parameter of the reactor and/or the cleaving decomposing in response to the concentration of the C.sub.8-12 alkylbenzene hydroperoxide.

The disclosure concerns systems and methods for the production of phenol and acetone from cumene oxidation products. One method comprises reacting cumene and an oxidizing agent to produce a cumene oxidation product comprising cumene hydroperoxide and dimethyl benzyl alcohol, converting at least a portion of the dimethyl benzyl alcohol to cumene hydroperoxide by reacting the at least a portion of the dimethyl benzyl alcohol with hydrogen peroxide in both an organic phase and an aqueous to produce a converted cumene oxidation product, and cleaving the converted cumene oxidation product to produce an output product comprising one or more of phenol, acetone, and alpha-methylstyrene.

The disclosure concerns systems and methods for the production of phenol and acetone from cumene oxidation products. One method comprises reacting cumene and an oxidizing agent to produce a cumene oxidation product comprising cumene hydroperoxide and dimethyl benzyl alcohol, converting at least a portion of the dimethyl benzyl alcohol to cumene hydroperoxide by reacting the at least a portion of the dimethyl benzyl alcohol with hydrogen peroxide in both an organic phase and an aqueous to produce a converted cumene oxidation product, and cleaving the converted cumene oxidation product to produce an output product comprising one or more of phenol, acetone, and alpha-methylstyrene.

The disclosure concerns systems and methods for the production of phenol and acetone from cumene oxidation products. One method comprises reacting cumene and an oxidizing agent to produce a cumene oxidation product comprising cumene hydroperoxide and dimethyl benzyl alcohol, converting at least a portion of the dimethyl benzyl alcohol to cumene hydroperoxide by reacting the at least a portion of the dimethyl benzyl alcohol with hydrogen peroxide in both an organic phase and an aqueous to produce a converted cumene oxidation product, and cleaving the converted cumene oxidation product to produce an output product comprising one or more of phenol, acetone, and alpha-methylstyrene.

The disclosure concerns methods comprising forming a phenol and acetone mixture from decomposition of a cumene hydroperoxide or a phenol, acetone, and AMS from the decomposition of a mixture containing dicumyl peroxide in a system comprising one or more reactors where at least a portion of an inner surface of the one or more reactors has a polymer coating and wherein the coating inhibits build-up of a fouling precipitate on the coated inner surface of the one or more reactors as compared to such build-up in the absence of the coating.

The disclosure concerns methods comprising forming a phenol and acetone mixture from decomposition of a cumene hydroperoxide or a phenol, acetone, and AMS from the decomposition of a mixture containing dicumyl peroxide in a system comprising one or more reactors where at least a portion of an inner surface of the one or more reactors has a polymer coating and wherein the coating inhibits build-up of a fouling precipitate on the coated inner surface of the one or more reactors as compared to such build-up in the absence of the coating.

The disclosure concerns methods comprising forming a phenol and acetone mixture from decomposition of a cumene hydroperoxide or a phenol, acetone, and AMS from the decomposition of a mixture containing dicumyl peroxide in a system comprising one or more reactors where at least a portion of an inner surface of the one or more reactors has a polymer coating and wherein the coating inhibits build-up of a fouling precipitate on the coated inner surface of the one or more reactors as compared to such build-up in the absence of the coating.

Disclosed is a hydroalkylation process in which the hydroalkylation catalyst is activated in the presence of a flowing fluid comprising hydrogen and a condensable agent. The presence of the condensable agent enables fast, effective activation of the hydroalkylation catalyst precursor in a cost-effective manner. It also yields superior catalyst performance.

Disclosed is a hydroalkylation process in which the hydroalkylation catalyst is activated in the presence of a flowing fluid comprising hydrogen and a condensable agent. The presence of the condensable agent enables fast, effective activation of the hydroalkylation catalyst precursor in a cost-effective manner. It also yields superior catalyst performance.

Disclosed is a hydroalkylation process in which the hydroalkylation catalyst is activated in the presence of a flowing fluid comprising hydrogen and a condensable agent. The presence of the condensable agent enables fast, effective activation of the hydroalkylation catalyst precursor in a cost-effective manner. It also yields superior catalyst performance.