A process for the construction of a second chemical plant, which second chemical plant is suitable for the separation of cyclohexanone from a second mixture, which second mixture comprises reaction products from the hydrogenation of phenol, said process comprising: a) providing a first chemical plant, which first chemical plant is suitable for the separation of cyclohexanone from a first mixture, which first mixture comprises reaction products from the oxidation of cyclohexane, and which first plant comprises: i) a distillation column (C) suitable for distilling overhead cyclohexane; ii) a distillation column suitable for distilling overhead cyclohexanone; iii) a cyclohexane oxidation unit (A) suitable for the oxidation of cyclohexane; and iv) a heat recovery unit (B) suitable for the recovery of heat from off-gas from the cyclohexane oxidation unit suitable for the oxidation of cyclohexane; b) disabling in said first chemical plant, said distillation column (C) suitable for distilling overhead cyclohexane, said cyclohexane oxidation unit (A) and said heat recovery unit (B), wherein the second chemical plant comprises a distillation column (F) suitable for distilling overhead cyclohexanone reused from the first chemical plant, wherein each of the first chemical plant and the second chemical plant comprise a distillation column (E) suitable for distilling overhead components having a lower boiling point than cyclohexanone; a distillation column (G) suitable for distilling overhead a mixture comprising cyclohexanol and cyclohexanone in a wt.:wt. ratio of at least 4:1; and a cyclohexanol dehydrogenation unit (H) suitable for the dehydrogenation of cyclohexanol to cyclohexanone.

A process for the construction of a second chemical plant, which second chemical plant is suitable for the separation of cyclohexanone from a second mixture, which second mixture comprises reaction products from the hydrogenation of phenol, said process comprising: a) providing a first chemical plant, which first chemical plant is suitable for the separation of cyclohexanone from a first mixture, which first mixture comprises reaction products from the oxidation of cyclohexane, and which first plant comprises: i) a distillation column (C) suitable for distilling overhead cyclohexane; ii) a distillation column suitable for distilling overhead cyclohexanone; iii) a cyclohexane oxidation unit (A) suitable for the oxidation of cyclohexane; and iv) a heat recovery unit (B) suitable for the recovery of heat from off-gas from the cyclohexane oxidation unit suitable for the oxidation of cyclohexane; b) disabling in said first chemical plant, said distillation column (C) suitable for distilling overhead cyclohexane, said cyclohexane oxidation unit (A) and said heat recovery unit (B), wherein the second chemical plant comprises a distillation column (F) suitable for distilling overhead cyclohexanone reused from the first chemical plant, wherein each of the first chemical plant and the second chemical plant comprise a distillation column (E) suitable for distilling overhead components having a lower boiling point than cyclohexanone; a distillation column (G) suitable for distilling overhead a mixture comprising cyclohexanol and cyclohexanone in a wt.:wt. ratio of at least 4:1; and a cyclohexanol dehydrogenation unit (H) suitable for the dehydrogenation of cyclohexanol to cyclohexanone.

In this invention, a portion of the products from a pyrolysis reactor are reacted in a process to form one or more chemical intermediates.

Disclosed are processes and systems for making cyclohexanone from a mixture comprising phenol, cyclohexanone, and cyclohexylbenzene, comprising a step of or a device for subjecting at least a portion of the mixture to hydrogenation and a step of or a device for distilling a phenol/cyclohexanone/cyclohexylbenzene mixture to obtain an effluent rich in cyclohexanone.

Disclosed are processes and systems for making cyclohexanone from a mixture comprising phenol, cyclohexanone, and cyclohexylbenzene, comprising a step of or a device for subjecting at least a portion of the mixture to hydrogenation and a step of or a device for distilling a phenol/cyclohexanone/cyclohexylbenzene mixture to obtain an effluent rich in cyclohexanone.

Disclosed are processes and systems for making cyclohexanone from a mixture comprising phenol, cyclohexanone, and cyclohexylbenzene, comprising a step of or a device for subjecting at least a portion of the mixture to hydrogenation and a step of or a device for distilling a phenol/cyclohexanone/cyclohexylbenzene mixture to obtain an effluent rich in cyclohexanone.

Disclosed are processes and systems for making cyclohexanone from a mixture comprising phenol, cyclohexanone, and cyclohexylbenzene, comprising a step of or a device for subjecting at least a portion of the mixture to hydrogenation and a step of or a device for distilling a phenol/cyclohexanone/cyclohexylbenzene mixture to obtain an effluent rich in cyclohexanone.

Disclosed are a process for abating 3-cyclohexenone from a feed mixture comprising 3-cylclohexenone and cyclohexanone, comprising a hydrogenation step of contacting the feed mixture with hydrogen in the presence of a hydrogenation catalyst under hydrogenation conditions to obtain a hydrogenated mixture, cyclohexanone-containing products comprising 3-cyclohexenone and/or 2-cyclohexenone at low concentrations, and compositions of matter useful for making such cyclohexanone-containing products, particularly by using such processes.

Disclosed are a process for abating 3-cyclohexenone from a feed mixture comprising 3-cylclohexenone and cyclohexanone, comprising a hydrogenation step of contacting the feed mixture with hydrogen in the presence of a hydrogenation catalyst under hydrogenation conditions to obtain a hydrogenated mixture, cyclohexanone-containing products comprising 3-cyclohexenone and/or 2-cyclohexenone at low concentrations, and compositions of matter useful for making such cyclohexanone-containing products, particularly by using such processes.

A hydrocarbon conversion process is described. The process includes contacting in a reactor an inert gas with one or more catalyst compositions suitable for methylation of toluene and hydrogenation of phenol; contacting a reducing agent with the one or more catalyst compositions under conditions suitable for reducing metal oxide content of the catalyst composition; contacting at least part of toluene and/or benzene-containing with a oxygenate in the presence of the one or more catalyst compositions and under conditions effective to convert toluene to xylenes and produce a reactor effluent stream comprising para-xylene and having a lower concentration of phenol than the toluene-containing stream; separating at least one para-xylene-enriched stream from the reactor effluent stream; and separating from the at least one para-xylene enriched stream at least one toluene-enriched stream and at least one para-xylene-product stream. An apparatus for carrying out such a process is also described.