An integrated process for making propene oxide and an alkyl tert-butyl ether comprises dehydrogenating a feed stream comprising iso-butane to provide a stream comprising iso-butene and hydrogen and separating this stream into a stream consisting essentially of hydrogen and a stream comprising iso-butene; reacting a part or all of the stream comprising iso-butene with an alkanol in the presence of a solid acid catalyst to provide an alkyl tert-butyl ether; reacting a part or all of the stream consisting essentially of hydrogen with oxygen, providing a stream comprising hydrogen peroxide; and reacting a part or all of the stream comprising hydrogen peroxide with propene in the presence of an epoxidation catalyst to provide propene oxide.

An integrated process for making propene oxide and an alkyl tert-butyl ether comprises dehydrogenating a feed stream comprising iso-butane to provide a stream comprising iso-butene and hydrogen and separating this stream into a stream consisting essentially of hydrogen and a stream comprising iso-butene; reacting a part or all of the stream comprising iso-butene with an alkanol in the presence of a solid acid catalyst to provide an alkyl tert-butyl ether; reacting a part or all of the stream consisting essentially of hydrogen with oxygen, providing a stream comprising hydrogen peroxide; and reacting a part or all of the stream comprising hydrogen peroxide with propene in the presence of an epoxidation catalyst to provide propene oxide.

Systems and methods for production of hydrogen peroxide, such as high-test peroxide, are disclosed. Representative systems and methods also include aerospace systems and space exploration missions implementing systems and methods for production of hydrogen peroxide. A representative system for making hydrogen peroxide can include: a water electrolyzer for receiving water and separating at least some of the water into hydrogen and oxygen; a proton-exchange membrane cell for receiving water, hydrogen from the water electrolyzer, and oxygen from the water electrolyzer and for combining the hydrogen, the oxygen, and the water into a first hydrogen peroxide solution having a first concentration of hydrogen peroxide in water; and a hydrogen peroxide concentrator for removing at least some of the water from the first hydrogen peroxide solution to yield a second hydrogen peroxide solution that has a second concentration of hydrogen peroxide in water that is greater than the first concentration.

Systems and methods for production of hydrogen peroxide, such as high-test peroxide, are disclosed. Representative systems and methods also include aerospace systems and space exploration missions implementing systems and methods for production of hydrogen peroxide. A representative system for making hydrogen peroxide can include: a water electrolyzer for receiving water and separating at least some of the water into hydrogen and oxygen; a proton-exchange membrane cell for receiving water, hydrogen from the water electrolyzer, and oxygen from the water electrolyzer and for combining the hydrogen, the oxygen, and the water into a first hydrogen peroxide solution having a first concentration of hydrogen peroxide in water; and a hydrogen peroxide concentrator for removing at least some of the water from the first hydrogen peroxide solution to yield a second hydrogen peroxide solution that has a second concentration of hydrogen peroxide in water that is greater than the first concentration.

Catalysts for selective production of hydrogen peroxide and methods of making and using thereof have been developed. The catalysts include an alloyed or doped metal oxide which permits tuning of the catalytic properties of the catalysts for selection of a desired pathway to a product, such as hydrogen peroxide. The catalysts may be incorporated into electrochemical or photochemical devices.

A water treatment apparatus, upper surfaces of two of the consecutively arranged ground electrodes are alternately inclined in opposite directions with respect to a horizontal plane, a gap is formed between a lower surface of an upper side ground electrode and an upper surface of a lower side ground electrode, a voltage is applied to a discharge electrode provided in the gap, thereby forming discharges both in air between the discharge electrode and the lower surface of the upper side ground electrode and in air between the discharge electrode and the upper surface of the lower side ground electrode, and water to be treated is caused to continuously flow downward from the ground electrode of an uppermost part to the ground electrode of a lowermost part along the respective upper surfaces such that the water to be treated is treated.

Apparatuses and methods for producing hydrogen peroxide by performing coupled chemical and electrochemical reactions are disclosed. An electrochemical cell has a chemical reaction chamber configured to hydrogenate a shuttle molecule and an electrochemical chamber configured to electrochemically dissociate water to form hydrogen ions at an anode, and to reduce the hydrogen ions to atomic hydrogen at a cathode. The chemical reaction chamber and the anode chamber are separated by a metallic membrane. The metallic membrane acts as a cathode of the cell, a hydrogen-selective layer and a catalyst. The metallic membrane may comprise a layer of palladium or a palladium alloy. A layer of co-catalyst may optionally be electrodeposited on the layer of palladium or palladium alloy. An ion exchange membrane separates the metallic membrane and the anode chamber. The hydrogenated shuttle molecule may be supplied to a reactor for contacting an oxygen-containing gas to yield hydrogen peroxide.

This invention relates to core-shell nanoparticles having acid sites, a method of manufacturing the same, and a method of directly producing hydrogen peroxide using the same.

This invention relates to core-shell nanoparticles having acid sites, a method of manufacturing the same, and a method of directly producing hydrogen peroxide using the same.

The present invention relates to a catalyst having surface-modified metal nanoparticles immobilized in a stationary phase in which a polymer electrolyte membrane is formed, and a preparation method thereof. The catalyst of the present invention may be used in a process for producing hydrogen peroxide by direct synthesis from oxygen and hydrogen.