A process includes reacting a feed stream containing ethanol and optionally acetaldehyde in a dehydration reactor in the presence of a dehydration catalyst system having a Group 4 or Group 5 metal oxide and a support. The process includes obtaining a product stream containing butadiene from the dehydration reactor. Another process includes reacting a feed stream containing ethanol and optionally acetaldehyde in a dehydration reactor in the presence of a dehydration catalyst system containing a tungsten oxide supported on a zeolite or a tantalum oxide supported on a zeolite. The process includes obtaining a product stream containing butadiene from the dehydration reactor.

Methods for producing propylene by the dehydrogenation of propane are provided. Methods can include introducing a first gas mixture including propane to a dehydrogenation catalyst at a temperature of at least about 570 C., introducing a second gas mixture including steam and air to the dehydrogenation catalyst at a temperature of at least about 550 C., and allowing the second gas mixture to subsist therewith for at least about one hour. Methods can further include introducing a third gas mixture including hydrogen to the dehydrogenation catalyst at a temperature of at least about 500 C.

The present invention relates to a method for fluorinating a chlorinated compound including the steps of (a) placing said chlorinated compound in contact with gaseous hydrogen fluoride within a reactor and in the presence of a fluorination catalyst to produce a fluorinated compound, and (b) regenerating the fluorination catalyst used in step a), the step of regenerating the fluorination catalyst including (c) treating said fluorination catalyst with an oxidizing agent to form an oxidized fluorination catalyst, and (d) treating the oxidized fluorination catalyst obtained in step (c) with a gas mixture including a reducing agent.

The present invention relates to a method for fluorinating a chlorinated compound including the steps of (a) placing said chlorinated compound in contact with gaseous hydrogen fluoride within a reactor and in the presence of a fluorination catalyst to produce a fluorinated compound, and (b) regenerating the fluorination catalyst used in step a), the step of regenerating the fluorination catalyst including (c) treating said fluorination catalyst with an oxidizing agent to form an oxidized fluorination catalyst, and (d) treating the oxidized fluorination catalyst obtained in step (c) with a gas mixture including a reducing agent.

The present disclosure provides a macroporous noble metal catalyst and processes employing such catalysts for the regeneration of deactivated ionic liquid catalyst containing conjunct polymer.

Methods for regenerating a spent catalyst are disclosed. Such methods may employ a step of chlorinating the spent catalyst in the gas phase, followed by decoking the chlorinated spent catalyst, and then fluorinating the de-coked catalyst in a fluorine-containing solution of a fluorine-containing compound.

Methods for regenerating a spent catalyst are disclosed. Such methods may employ a step of chlorinating the spent catalyst in the gas phase, followed by decoking the chlorinated spent catalyst, and then fluorinating the de-coked catalyst in a fluorine-containing solution of a fluorine-containing compound.

The present invention provides catalysts, methods, and reactor systems for converting oxygenated hydrocarbons to oxygenated compounds. The invention includes methods for producing cyclic ethers, monooxygenates, dioxygenates, ketones, aldehydes, carboxylic acids, and alcohols from oxygenated hydrocarbons, such as carbohydrates, sugars, sugar alcohols, sugar degradation products, and the like, using catalysts containing Group VIII metals. The oxygenated compounds produced are useful in the production of liquid fuels, chemicals, and other products.

A process discharge gas polluted material removal device with a regenerating means of a polluted oxidation catalyst includes: an oxidation catalyst tower connected to a pipe circulating a process discharge gas including a combustible material, an organic material, an inorganic material, and nitrogen oxide and having a first temperature and having an oxidation catalyst embedded therein, the oxidation catalyst oxidizing and removing the combustible material; and a plasma reactor connected to the oxidation catalyst tower in front of the oxidation catalyst, generating a synthesis gas including hydrogen and having a high temperature of 300 C. or more by a plasma reaction, and supplying the synthesis gas including the hydrogen to the oxidation catalyst to regenerate the oxidation catalyst poisoned by the organic material and the inorganic material.

A process discharge gas polluted material removal device with a regenerating means of a polluted oxidation catalyst includes: an oxidation catalyst tower connected to a pipe circulating a process discharge gas including a combustible material, an organic material, an inorganic material, and nitrogen oxide and having a first temperature and having an oxidation catalyst embedded therein, the oxidation catalyst oxidizing and removing the combustible material; and a plasma reactor connected to the oxidation catalyst tower in front of the oxidation catalyst, generating a synthesis gas including hydrogen and having a high temperature of 300 C. or more by a plasma reaction, and supplying the synthesis gas including the hydrogen to the oxidation catalyst to regenerate the oxidation catalyst poisoned by the organic material and the inorganic material.