Method for direct amination of hydrocarbons to form amino hydrocarbons with the electrochemical separation of hydrocarbon

摘要

Process for the direct amination of hydrocarbons to aminohydrocarbons, which comprises the steps:
a) reaction of a feed stream E comprising at least one hydrocarbon and at least one aminating reagent to form a reaction mixture R comprising aminohydrocarbons and hydrogen andb) electrochemical separation of at least part of the hydrogen formed in the reaction from the reaction mixture R by means of a gastight membrane-electrode assembly having at least one selectively proton-conducting membrane and at least one electrode catalyst on each side of the membrane, where at least part of the hydrogen is oxidized to protons over the anode catalyst on the retentate side of the membrane and the protons are, after passing through the membrane,
b1) reduced to hydrogen and/orb2) reacted with oxygen from an oxygen-comprising stream O which is brought into contact with the permeate side of the membrane to form waterover the cathode catalyst on the permeate side.

主权项

1. A process for direct amination of a hydrocarbon to an aminohydrocarbon, the process comprising:
a) reacting a feed stream E comprising a hydrocarbon and an aminating reagent to obtain a reaction mixture R comprising an aminohydrocarbon and hydrogen and b) electrochemically separating at least part of the hydrogen from the reaction mixture R with a gastight membrane-electrode assembly, leaving a product stream P, wherein the membrane-electrode assembly comprises a selectively proton-conducting membrane having a retentate side and a permeate side, an anode catalyst on the retentate side of the membrane, and a cathode catalyst on the permeate side of the membrane, electrochemically separating at least part of the hydrogen b) comprises oxidizing at least part of the hydrogen to protons over the anode catalyst and passing the protons through the membrane, electrochemically separating at least part of the hydrogen b) further comprises either reducing the protons over the cathode catalyst to obtain hydrogen, or reacting the protons with oxygen from an oxygen-comprising stream O over the cathode catalyst to obtain water.