Abstract:
The invention relates to a column (1) for thermally treating fluid mixtures, comprising a cylindrical, vertically-aligned column body (2) that forms a column cavity (3), a plurality of trays (8) which are mounted in the column cavity (3) and vertically spaced apart from one another, at least one neck (11) arranged in the column body (2) and extending away from said column body (2), and a closeable inspection opening (9) formed at the neck (11). The claimed column is characterised in that a spray device (20) is arranged in the column body (2) and can spray liquid (22) at least against the neck (11) surface (15) directed into the column cavity (3).
Abstract:
The invention relates to a column (1) for thermally treating fluid mixtures, comprising a vertically aligned cylindrical column body (2) which forms a hollow column space (3), multiple bases (8) which are mounted in the hollow column space (3) in a mutually vertically spaced manner, and a support structure (9) which supports at least one of the bases (8) in the vertical direction. The column (1) according to the invention is characterized in that the support structure (9) has multiple openings (12) which allow a horizontal exchange of materials by means of the support structure (9). The invention further relates to a base device for such a column and to a thermal separating method between at least one gas which is ascending in such a column (1) and at least one liquid which is descending in the column (1).
Abstract:
The invention relates to a system (1) for carrying out heterogeneous catalytic gas-phase reactions, comprising: a reactor (3); at least one line (11), leading into the reactor (3), for introducing reagents into the reactor (3); at least one first feed (5), leading into the line (11), for providing at least one first reagent A; at least one second feed (7), leading into the line (11), for providing at least one second reagent B; at least one third feed (9), leading into the line (11), for providing a circuit gas G; a temperature-control unit (13), arranged upstream from the reactor (3) in the line (11), for controlling the temperature of the first reagent A and/or second reagent B and/or the circuit gas G before entering into the reactor (3); and at least one outlet (15) for products, by-products and/or unreacted reagents of the gas-phase reaction. The invention also relates to a method for carrying out heterogeneous catalytic gas-phase reactions.
Abstract:
The invention relates to an oxidation catalyst comprising at least one inorganic oxidic or ceramic shaped support body having a BET surface area of less than 0.5 m 2 /g, based on the support, having an at least partial coating with a catalytically active multielement oxide, where the catalyst is noble metal-free and the shaped support body takes the form of a saddle having a saddle surface with opposite curvatures in the two main directions, to a process for production thereof, to the use thereof in different catalytic gas phase oxidations and to corresponding processes for catalytic gas phase oxidation.
Abstract:
The present invention relates to an extraction column (1) comprising, at least in sections, a cylindrical, vertically orientated column body (2), said column body forming a hollow column space (3) having a maximum horizontal extension, wherein within the column body (2) are arranged at least one first inlet (4) for an extractant, at least one second inlet (5) for the fluid to be extracted, and at least one outlet (6) for the extractant mixture and at least one outlet for the raffinate. The extraction column (1) according to the invention is characterized in that a vertically oriented dividing device (7) is arranged within the hollow column space (3) that divides the hollow column space (3) into several vertically oriented and horizontally separated areas, wherein the maximum horizontal extent of each area is smaller than the maximum horizontal extent of the hollow column space (3). The invention further relates to a method for extracting a component from a fluid by means of such an extraction column (1).
Abstract:
Multi-metal oxide mass containing MO, Bi and Fe with general stoichiometry I, Mo 12 Bi a Co b Fe c K d Si e O x (I), with a = 0.5 to 1, b = 7 to 8.5, c = 1.5 to 3.0, d = 0 to 0.15, e = 0 to 2.5 and x = stoichiometric coefficient of O 2- to guarantee electrical neutrality of the multi-metal oxide, as well as 12 - b - 1.5 ⋅ c = A and 0.5 ≤ A ≤ 1.5, 0.2 ≤ a/A ≤ 1.3 and 2.5 ≤ b/c ≤ 9 and the use thereof.
Abstract:
The invention relates to a method for mixing a liquid in a container or a mixture of a liquid and a fine-particle solid. According to said method, the same liquid or the same mixture is fed to the container in the form of a propelled stream by means of a jet that has a propelling nozzle and a pulse exchange chamber. The suction region between the propelling nozzle and the pulse exchange chamber is provided with sheathing, which has a suction opening lying beneath the central stream that leads from the propelling nozzle into the pulse exchange chamber.