SOLIDS-PACKED APPARATUS FOR PERFORMANCE OF ENDOTHERMIC REACTIONS WITH DIRECT ELECTRICAL HEATING

    公开(公告)号:US20210051770A1

    公开(公告)日:2021-02-18

    申请号:US16964472

    申请日:2019-01-22

    申请人: BASF SE

    摘要: The present invention relates to an electrically heatable packed pressure-bearing apparatus for conducting endothermic reactions having an upper (3), middle (1) and lower (3) apparatus section, where at least one pair of electrodes (4, 5) in a vertical arrangement is installed in the middle section (1) and all electrodes are disposed in an electrically conductive solid-state packing (26), the upper and lower apparatus sections have a specific conductivity of 105 S/m to 108 S/m, and the middle apparatus section is electrically insulated against the solid-state packing, wherein the upper and lower apparatus sections are electrically insulated from the middle apparatus section, the upper electrode is connected via the upper apparatus section and the lower electrodes via the lower apparatus section or the electrodes are each connected via one or more connecting elements (10, 16) that are in electrical contact with these sections and the ratio of the cross-sectional areas of the upper and lower electrode to the cross-sectional area of the respective current-conducting connecting element or, without use of a connecting element, the ratio of the cross-sectional area of the upper and lower electrode to the cross-sectional area of the respective current-conducting apparatus section is 0.1 to 10.

    Apparatus and process for the preparation of acetylene and synthesis gas

    公开(公告)号:US10059640B2

    公开(公告)日:2018-08-28

    申请号:US15129094

    申请日:2015-03-25

    申请人: BASF SE

    摘要: An apparatus (10) for the preparation of acetylene and synthesis gas by partial oxidation of hydrocarbons with oxygen is proposed. The apparatus (10) comprises a reactor (12), wherein the reactor (12) comprises a burner block (14) with a furnace chamber for the preparation of a composition C1 comprising at least acetylene and substituted acetylene, a first scrubber (22) which is constructed for adding a solvent to the composition C1 to obtain a composition C2, a second scrubber (26) which is constructed for adding the solvent to the composition C2 to obtain a composition C3, a first stripper (36) which is constructed for stripping the composition C3 to obtain a composition C4 comprising the substituted acetylene, acetylene and the solvent and for separating off the acetylene, a first column (46) which is constructed for partial degassing of the composition C4 under a pressure of from 1.0 bar to 1.5 bar to obtain a composition C5 and a first amount A1 of the solvent, a second stripper (56) to which the composition C5 can be fed for stripping a composition C9 to obtain a second amount A2 of the solvent and a composition C6, a third stripper (68) which is constructed for stripping the solvent from the first scrubber (22) to obtain a composition C9, wherein the third striper (68) is connected to the second stripper (56) for feeding the composition C9 to the second stripper (56), an apparatus (72) for adding a diluting gas to the composition C5, which is arranged between the first column (46) and the second stripper (56), a second column (76) which is constructed for adding water to the composition C6 to obtain a composition C7 comprising a third amount A3 of the solvent and water and to obtain a composition C8 comprising the substituted acetylene, and a mixing condenser (82) which is constructed for adding water to the composition C8 to obtain a composition C11 comprising the substituted acetylene.A process for the preparation of acetylene and synthesis gas by partial oxidation of hydrocarbons with oxygen is further proposed.