摘要:
The present invention relates to a process for the continuous preparation of methoxyamine hydrochloride by cleavage of acetone oxime methyl ether by means of hydrogen chloride and water, wherein the cleavage is carried out in a reaction column having less than 20 theoretical plates and the amount taken off at the top is set to at least 30% of the amount of feed.
摘要:
A process for the preparation of acetylene and synthesis gas by partial thermal oxidation in a reactor which has a burner having passages, wherein the starting materials to be reacted are rapidly and completely mixed only immediately before the flame reaction zone in the passages of the burner, a mean flow rate which exceeds the flame propagation velocities under the given reaction conditions being established in the mixing zone within the passages.
摘要:
Methods comprising: (a) providing a starting mixture comprising at least one hydrocarbon and at least one oxygen source, wherein the starting mixture has a fuel number of at least 4; (b) heating the starting mixture to a temperature of not more than 1400° C. and subjecting it to a single-stage, autothermal, uncatalyzed reaction to form a reaction gas; and (c) subjecting the reaction gas to rapid cooling to form at least one olefin and synthesis gas are described.
摘要:
A process for the preparation of acetylene and synthesis gas by partial thermal oxidation in a reactor which has a burner having passages, wherein the starting materials to be reacted are rapidly and completely mixed only immediately before the flame reaction zone in the passages of the burner, a mean flow rate which exceeds the flame propagation velocities under the given reaction conditions being established in the mixing zone within the passages.
摘要:
The present invention relates to a process for preparing thermodynamically unstable products of the oxidative gas-phase reaction of molecular compounds comprising hydrogen and at least one atom other than hydrogen by stabilized autothermal reaction in a porous medium.
摘要:
The invention relates to a process for the preparation of acetylene and synthesis gas by thermal treatment of a starting mixture containing one or more hydrocarbons and in addition molecular oxygen and/or one or more compounds containing the element oxygen, in which the starting mixture is heated, brought to reaction in a reactor and subsequently cooled. The process has the special feature that the starting mixture is heated to a maximum of 1400° C. It is then possible to carry out the process with comparatively little expenditure of energy.
摘要:
The invention relates to a process for the scale-up of a reactor (1) having a supply of a reaction mixture via channels (2) of a burner block (3) to a reaction chamber (4), a high temperature reaction having a short residence time taking place in the reaction chamber (4) and the reaction mixture subsequently being rapidly cooled in a quench area (5). For a throughput enlargement the internal diameter of the reactor (1) is enlarged, the transition of the reaction chamber (4) to the quench area (5) being designed in the form of a gap, which is restricted to a width in the range from 2 to 200 mm.
摘要:
The invention relates to a reactor (1) having a supply of a reaction mixture via channels (2) of a burner block (3) in a reaction chamber (4), a high temperature reaction having a short residence time taking place in the reaction chamber (4) and the reaction mixture then being rapidly cooled in a quench area (5). In the reactor (1), all surfaces delineating the reaction chamber (4) are formed from a fire-resistant ceramic having an alumina content of at least 80% by weight, which is stable at reaction temperature.