公开(公告)号：US20220387954A1

公开(公告)日：2022-12-08

申请号：US17755333

申请日：2020-10-20

Applicant: BASF SE ,  thyssenkrupp AG ,  thyssenkrupp Industrial Solutions AG

Inventor： Grigorios Kolios ,  Frederik Scheiff ,  Christopher Alec Anderlohr ,  Hagen Appel ,  Gerhard Olbert ,  Bernd Zoels ,  Dieter Flick ,  Achim Wechsung ,  Matthias Kern ,  Karsten Bueker ,  Nicolai Antweiler

IPC: B01J8/12 ,  B01J8/00 ,  C01B3/30

Abstract: A method can be used for operating a descending moving bed reactor with flowable granular material. The method involves: (i) filling an upper lock-hopper with granular material and/or emptying a lower lock-hopper, (ii) purging the lock-hoppers with purging gas, and (iii) filling the reaction chamber containing a descending moving bed from the upper lock-hopper and/or emptying the reaction chamber into the lower lock-hopper. The pressure equalization between the reaction chamber and lock-hopper is achieved with product gas. The method then involves: (iv) optionally, relieving the lock-hoppers and conveying the product gas flow into the product line, and (v) purging the lock-hoppers with purging gas.

公开(公告)号：US11882629B2

公开(公告)日：2024-01-23

申请号：US16964472

申请日：2019-01-22

Applicant: BASF SE

Inventor： Hagen Appel ,  Jens Bernnat ,  Friedrich Glenk ,  Grigorios Kolios ,  Gerhard Olbert ,  Frederik Scheiff ,  Bernd Zoels ,  Matthias Kern ,  Dieter Flick ,  Christopher Alec Anderlohr ,  Dirk Klingler ,  Achim Wechsung

IPC: B01J8/24 ,  H05B3/00 ,  H05B3/60 ,  C01B3/26 ,  C01B3/30

CPC classification number: H05B3/0004 ,  B01J8/24 ,  C01B3/26 ,  C01B3/30 ,  H05B3/60 ,  B01J2208/00176

Abstract: 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.

公开(公告)号：US11691115B2

公开(公告)日：2023-07-04

申请号：US16346672

申请日：2017-10-26

Applicant: BASF SE

Inventor： Grigorios Kolios ,  Bernd Zoels ,  Matthias Kern ,  Jens Bernnat ,  Rene Koenig ,  Friedrich Glenk ,  Achim Wechsung

IPC: B01J8/04 ,  B01J38/32 ,  C01B3/56 ,  C01B32/05 ,  C01B3/04 ,  C01B3/26 ,  C01B3/38 ,  C01B13/02 ,  C04B2/10 ,  C07C5/333

CPC classification number: B01J8/04 ,  B01J8/0492 ,  B01J8/0496 ,  B01J38/32 ,  C01B3/045 ,  C01B3/26 ,  C01B3/38 ,  C01B13/0207 ,  C01B32/05 ,  C04B2/108 ,  C07C5/3337 ,  B01J2208/00522 ,  B01J2219/0004 ,  C01B3/56 ,  C01B2203/043

Abstract: The present invention relates to a process for conducting endothermic gas phase or gas-solid reactions, wherein the endothermic reaction is conducted in a production phase in a first reactor zone, the production zone, which is at least partly filled with solid particles, where the solid particles are in the form of a fixed bed, of a moving bed and in sections/or in the form of a fluidized bed, and the product-containing gas stream is drawn off from the production zone in the region of the highest temperature level plus/minus 200 K and the product-containing gas stream is guided through a second reactor zone, the heat recycling zone, which at least partly comprises a fixed bed, where the heat from the product-containing gas stream is stored in the fixed bed, and, in the subsequent purge step, a purge gas is guided through the production zone and the heat recycling zone in the same flow direction, and, in a heating zone disposed between the production zone and the heat recycling zone, the heat required for the endothermic reaction is introduced into the product-containing gas stream and into the purge stream or into the purge stream, and then, in a regeneration phase, a gas is passed through the two reactor zones in the reverse flow direction and the production zone is heated up; the present invention further relates to a structured reactor comprising three zones, a production zone containing solid particles, a heating zone and a heat recycling zone containing a fixed bed, wherein the solid particles and the fixed bed consist of different materials.