Provided is a solid acid catalyst for use in oxidation of a substrate in the coexistence of oxygen and ozone (solid acid catalyst for oxygen-ozone-coexisting oxidation). The solid acid catalyst enables oxidation of the substrate with a high conversion. This solid acid catalyst for oxygen-ozone-coexisting oxidation is a solid acid catalyst for use in an oxidation reaction to oxidize a substrate (A) in the coexistence of oxygen and ozone. The solid acid catalyst includes a transition metal in the form of an elementary substance, a compound, or an ion, and a support supporting the transition metal. The support includes, at least in its surface, a strong acid or super strong acid having a Hammett acidity function (H.sub.0) of −9 or less. The support is preferably a pellet or particle made of a fluorinated sulfonic acid resin, or a support including a solid and a layer of a fluorinated sulfonic acid resin disposed on the solid.

Provided is a solid acid catalyst for use in oxidation of a substrate in the coexistence of oxygen and ozone (solid acid catalyst for oxygen-ozone-coexisting oxidation). The solid acid catalyst enables oxidation of the substrate with a high conversion. This solid acid catalyst for oxygen-ozone-coexisting oxidation is a solid acid catalyst for use in an oxidation reaction to oxidize a substrate (A) in the coexistence of oxygen and ozone. The solid acid catalyst includes a transition metal in the form of an elementary substance, a compound, or an ion, and a support supporting the transition metal. The support includes, at least in its surface, a strong acid or super strong acid having a Hammett acidity function (H.sub.0) of −9 or less. The support is preferably a pellet or particle made of a fluorinated sulfonic acid resin, or a support including a solid and a layer of a fluorinated sulfonic acid resin disposed on the solid.

Methods and systems for preparing acetone from cumene hydroperoxide (CHP) are disclosed. The disclosed methods involve cleaving CHP to form a cleavage product stream. In some embodiments, the cleavage product stream is separated into an overhead stream and a bottoms stream. The bottoms stream is neutralized, washed and then treated in a crude acetone column to provide a crude acetone stream. The overhead stream of the cleavage product is flashed forward in the process, bypassing the neutralization, washing, and crude acetone column and is then combined with the crude acetone stream. The combined acetone streams are provided to an acetone product column. According to some embodiments, the acetone product column comprises a side draw for obtaining a recycle acetone stream, which is recycled to the cleavage reactor(s). The recycle acetone side draw may be located lower on the acetone product column than the point from which product acetone is obtained. The disclosed methods increase the efficiency of the process.

Methods and systems for preparing acetone from cumene hydroperoxide (CHP) are disclosed. The disclosed methods involve cleaving CHP to form a cleavage product stream. In some embodiments, the cleavage product stream is separated into an overhead stream and a bottoms stream. The bottoms stream is neutralized, washed and then treated in a crude acetone column to provide a crude acetone stream. The overhead stream of the cleavage product is flashed forward in the process, bypassing the neutralization, washing, and crude acetone column and is then combined with the crude acetone stream. The combined acetone streams are provided to an acetone product column. According to some embodiments, the acetone product column comprises a side draw for obtaining a recycle acetone stream, which is recycled to the cleavage reactor(s). The recycle acetone side draw may be located lower on the acetone product column than the point from which product acetone is obtained. The disclosed methods increase the efficiency of the process.

Methods and systems for preparing acetone from cumene hydroperoxide (CHP) are disclosed. The disclosed methods involve cleaving CHP to form a cleavage product stream. In some embodiments, the cleavage product stream is separated into an overhead stream and a bottoms stream. The bottoms stream is neutralized, washed and then treated in a crude acetone column to provide a crude acetone stream. The overhead stream of the cleavage product is flashed forward in the process, bypassing the neutralization, washing, and crude acetone column and is then combined with the crude acetone stream. The combined acetone streams are provided to an acetone product column. According to some embodiments, the acetone product column comprises a side draw for obtaining a recycle acetone stream, which is recycled to the cleavage reactor(s). The recycle acetone side draw may be located lower on the acetone product column than the point from which product acetone is obtained. The disclosed methods increase the efficiency of the process.

Methods and systems for preparing acetone from cumene hydroperoxide (CHP) are disclosed. The disclosed methods involve cleaving CHP to form a cleavage product stream. In some embodiments, the cleavage product stream is separated into an overhead stream and a bottoms stream. The bottoms stream is neutralized, washed and then treated in a crude acetone column to provide a crude acetone stream. The overhead stream of the cleavage product is flashed forward in the process, bypassing the neutralization, washing, and crude acetone column and is then combined with the crude acetone stream. The combined acetone streams are provided to an acetone product column. According to some embodiments, the acetone product column comprises a side draw for obtaining a recycle acetone stream, which is recycled to the cleavage reactor(s). The recycle acetone side draw may be located lower on the acetone product column than the point from which product acetone is obtained. The disclosed methods increase the efficiency of the process.

A process for the treatment of waste water, spent air, and hydrocarbon containing liquid and gaseous streams in the cumene/phenol complex is described. Various effluent streams are combined in appropriate collection vessels, including a spent air knockout drum, a hydrocarbon buffer vessel, a fuel gas knockout drum, a phenolic water vessel, and a non-phenolic water vessel. Streams from these vessels are sent to a thermal oxidation system.

A process for the treatment of waste water, spent air, and hydrocarbon containing liquid and gaseous streams in the cumene/phenol complex is described. Various effluent streams are combined in appropriate collection vessels, including a spent air knockout drum, a hydrocarbon buffer vessel, a fuel gas knockout drum, a phenolic water vessel, and a non-phenolic water vessel. Streams from these vessels are sent to a thermal oxidation system.

A process for the treatment of waste water, spent air, and hydrocarbon containing liquid and gaseous streams in the cumene/phenol complex is described. Various effluent streams are combined in appropriate collection vessels, including a spent air knockout drum, a hydrocarbon buffer vessel, a fuel gas knockout drum, a phenolic water vessel, and a non-phenolic water vessel. Streams from these vessels are sent to a thermal oxidation system.

The invention relates to a process for producing olefins from alcohols by means of catalytic dehydration. More in particular, the present invention relates to a process for producing at least one olefin by dehydrating at least one alcohol having a number of carbon atoms comprised between 2 and 6, preferably comprised between 2 and 4, more preferably at least one alcohol having a number of carbon atoms of 3, even more preferably 2-propanol, in the presence of a catalytic material comprising at least one large pore zeolite in acid form, or predominantly acid form, preferably selected from the group consisting of zeolites having BEA structure, MTW structure and mixtures thereof, and preferably at least one inorganic binder, more preferably alumina. Preferably, the olefin has the same number of carbon atoms as the starting alcohol. Furthermore, preferably the olefin does not contain conjugated double bonds and more preferably the olefin is a mono-olefin. Subject matter of the present invention is also the use of the aforementioned olefin in an alkylation process of aromatic hydrocarbons, in particular the use of propylene for alkylating benzene to provide cumene. The aforementioned cumene can be used in an integrated process for preparing phenol and acetone, in accordance with the Hock method, wherein acetone can be reduced to 2-propanol, to be recycled to the process of the invention to obtain propylene again.