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1. 发明公开

US20230356176A1 Device and Method for Controllably Carrying Out a Chemical Reaction 审中-公开
公开(公告)号：US20230356176A1
公开(公告)日：2023-11-09
申请号：US18246846
申请日：2021-09-27
申请人： Linde GmbH , BASF SE
发明人： Christian Lang , Martin Hofstatter , Mathieu Zellhuber , Anton Wellenhofer , Robert Stegemann , Peter Reiser , Niklas Fleischmann , Christian Ziegler , Heinz Posselt , Clara Delhomme-Neudecker , Andrey Shustov , Eric Jenne , Heinz-Jurgen Kuhn , Kiara Aenne Kochendorfer , Heinrich Laib , Reiner Jacob
IPC分类号： B01J19/24 , B01J8/06
CPC分类号： B01J19/243 , B01J8/067 , B01J2219/00135 , B01J2208/00415
摘要： A method for regulatedly carrying out a chemical reaction in a reactor having reaction tubes which have a number of electrically heatable tube sections, wherein power connections are provided, which are each connected to at least one of the tube sections, wherein at least one connecting element is provided and each of the tube sections is connected to the connecting element. The method comprises conducting a process fluid through the one or more reaction tubes, providing several variable voltages at the several power connections, wherein the several voltages are provided as phases of a multiphase AC voltage so that the at least one connecting element forms a star point, setting the one or more voltages; detecting one or more measured values corresponding to one or more measured variables; changing the several set voltages so that the detected measured values correspond to predetermined values or value ranges of the measured variables.

2. 发明公开

US20230226511A1 Reactor and Method for Carrying out a Chemical Reaction 审中-公开
公开(公告)号：US20230226511A1
公开(公告)日：2023-07-20
申请号：US17996525
申请日：2021-04-22
申请人： LINDE GMBH , BASF SE
发明人： Martin Hofstätter , Mathieu Zellhuber , Peter Reiser , Georg Kiese , Christian Ziegler , Robert Stegemann , Jens Aengenheister , Jürgen Feigl , Anton Wellenhofer , Clara Delhomme-Neudecker , Andrey Shustov , Eric Jenne , Kiara Aenne Kochendörfer , Heinrich Laib , Heinz-Jürgen Kühn , Reiner Jacob
IPC分类号： B01J19/00 , B01J8/06 , B01J19/08
CPC分类号： B01J19/002 , B01J8/067 , B01J19/0013 , B01J19/087 , B01J2219/00049
摘要： A reactor has a reactor vessel and one or more reaction tubes. One or more power input elements are guided into the reactor vessel for the electrical heating of the reaction tube(s). The one or more power input elements each have a rod-shaped section, and the rod-shaped section(s) each run in a respective wall passage through a wall of the reactor vessel. A connection chamber into which the rod-shaped section(s) project is arranged outside the reactor vessel and adjacent to the wall of the reactor vessel through which the rod-shaped section(s) run in their wall passages. Gas feed means apply an inerting gas to the connection chamber, and the wall passages with the rod-shaped sections received therein in a longitudinally-movable manner are designed to be gas-permeable so that at least a portion of the inerting gas fed into the connection chamber flows out into the reactor vessel.

3. 发明公开

US20230211305A1 Reactor and Method for Carrying out a Chemical Reaction 审中-公开
公开(公告)号：US20230211305A1
公开(公告)日：2023-07-06
申请号：US17996523
申请日：2021-04-22
申请人： LINDE GMBH , BASF SE
发明人： Martin Hofstätter , Mathieu Zellhuber , Peter Reiser , Georg Kiese , Christian Ziegler , Robert Stegemann , Jens Aengenheister , Jürgen Feigl , Anton Wellenhofer , Clara Delhomme-Neudecker , Andrey Shustov , Eric Jenne , Kiara Aenne Kochendörfer , Heinrich Laib , Heinz-Jürgen Kühn , Reiner Jacob
IPC分类号： B01J8/06 , B01J19/00 , B01J19/08
CPC分类号： B01J8/067 , B01J19/002 , B01J19/087 , B01J2208/00628 , B01J2219/00245
摘要： A reactor for carrying out a chemical reaction has a reactor vessel, one or more reaction tubes and means for the electrical heating of the one or more reaction tubes. The reactor vessel has one or more discharge orifices which are permanently open or are set up to open above a preset pressure level, and gas feed means are provided, which are set up to feed an inerting gas into an interior of the reactor vessel.

4. 发明申请

US20230115461A1 Reactor and Method for Carrying Out a Chemical Reaction 有权
公开(公告)号：US20230115461A1
公开(公告)日：2023-04-13
申请号：US17906176
申请日：2021-03-11
申请人： LINDE GMBH , BASF SE
发明人： Mathieu Zellhuber , Martin Hofstätter , Heinz Posselt , Christian Lang , Robert Stegemann , Anton Wellenhofer , Volker Jeromin , Peter Reiser , Georg Kiese , Christian Ziegler , Andrey Shustov , Eric Jenne , Kiara Aenne Kochendörfer , Heinrich Laib , Heinz-Jürgen Kühn , Reiner Jacob , Clara Delhomme-Neudecker
IPC分类号： B01J19/00 , B01J19/24 , C01B3/34
摘要： A reactor includes a reactor vessel and one or more reaction tubes A number of tube sections of the one or more reaction tubes in each case run between a first region and a second region in the reactor vessel. For the electrical heating of the tube sections, the tube sections in the first region can be electrically connected to (a) current connection(s) of a current source. In the first region, current feed arrangements are provided; in each case one or in each case one group of the tube sections are electrically connected, and each comprise (a) contact passage(s) that in each case adjoin(s) at least one of the tube sections in the first region. A wall of the contact passages in each case is connected to a current feed element that has a rod-shaped section that runs at a wall passage through a wall of the reactor vessel.

5. 发明授权

US10370310B2 Method for preparing 1,3-butadiene from n-butenes by oxidative dehydrogenation 有权
公开(公告)号：US10370310B2
公开(公告)日：2019-08-06
申请号：US16069553
申请日：2017-01-11
申请人： BASF SE , Linde AG
发明人： Jan Pablo Josch , Georgios Karanikoulis , Oliver Hammen , Claudia Mossbacher , Ulrike Wenning , Anton Wellenhofer , Christine Toegel , Hendrik Reyneke
IPC分类号： C07C5/48 , C07C7/06 , C07C7/08 , C07C7/11 , C07C7/00 , C07C7/04
摘要： The invention relates to a method for producing butadiene from n-butenes having the steps: A) providing a feed gas stream a comprising n-butenes; B) feeding the feed gas stream a comprising the n-butenes and an oxygen-comprising gas into at least one oxidative dehydrogenation zone and oxidatively dehydrogenating n-butenes to butadiene, wherein a product gas stream b comprising butadiene, unreacted n-butenes, steam, oxygen, low-boiling hydrocarbons, high-boiling minor components, possibly carbon oxides and possibly inert gases is obtained; Ca) cooling the product gas stream b by contacting it with a refrigerant and condensing at least a part of the high-boiling minor components; Cb) compressing the remaining product gas stream b in at least one compression stage, wherein at least one aqueous condensate stream c1 and a gas stream c2 comprising butadiene, n-butenes, steam, oxygen, low-boiling hydrocarbons, possibly carbon oxides and possibly inert gases are obtained; Da) separating off non-condensable and low-boiling gas components comprising oxygen, low-boiling hydrocarbons, possibly carbon oxides and possibly inert gases as gas stream d2 from the gas stream c2 by absorbing the C4 hydrocarbon-comprising butadiene and n-butenes in an absorbent, wherein an absorbent stream loaded with C4 hydrocarbons and the gas stream d2 are obtained, and Db) subsequent desorption of the C4 hydrocarbons from the loaded absorbent stream in a desorption column, wherein a C4 product gas stream d1 is obtained, wherein a polymerization inhibitor is added in step Db) at the column head of the desorption column.

6. 发明授权

US10358399B2 Process for preparing 1,3-butadiene from n-butenes by oxidative dehydrogenation 有权
公开(公告)号：US10358399B2
公开(公告)日：2019-07-23
申请号：US15523862
申请日：2015-11-02
申请人： BASF SE , Linde AG
发明人： Philipp Grüne , Stephan Deublein , Christian Walsdorff , Jan Pablo Josch , Rainer Rahm , Hendrik Reyneke , Anton Wellenhofer , Ulrike Wenning , Christine Toegel , Heinz Boelt
IPC分类号： C07C5/48 , B01D3/40 , C07C7/05 , C07C7/04 , C07C7/08 , C07C7/11 , C07C7/00 , C07C11/167
摘要： A process for preparing butadiene from n-butenes, comprising the steps of: A) providing an input gas stream comprising n-butenes; B) feeding the input gas stream comprising n-butenes and a gas containing at least oxygen into at least one oxidative dehydrogenation zone and oxidatively dehydrogenating n-butenes to butadiene, giving a product gas stream; Ca) cooling the product gas stream by contacting with a circulating cooling medium in at least one cooling zone; Cb) compressing the cooled product gas stream in at least one compression stage, giving at least one aqueous condensate stream c1 and one gas stream c2; D) removing uncondensable and low-boiling gas constituents comprising oxygen and low-boiling hydrocarbons as gas stream d2 from the gas stream c2 by absorbing the C4 hydrocarbons in an absorbent, giving an absorbent stream laden with C4 hydrocarbons and the gas stream d2, and then desorbing the C4 hydrocarbons from the laden absorbent stream, giving a C4 product gas stream d1; E) separating the C4 product stream d1 by extractive distillation; F) distilling the stream e1 into a stream f1 consisting essentially of the selective solvent and a stream f2 comprising butadiene; G) removing a portion of the aqueous phase of the cooling medium which circulates in step Ca) as aqueous purge stream g; H) distillatively separating the aqueous purge stream g into a fraction h1 and a fraction h2 depleted of organic constituents.

7. 发明授权

US10421700B2 Process for preparing 1,3-butadiene from n-butenes by oxidative dehydrogenation 有权
公开(公告)号：US10421700B2
公开(公告)日：2019-09-24
申请号：US15561711
申请日：2016-03-23
申请人： BASF SE , Linde AG
发明人： Jan Pablo Josch , Ragavendra Prasad Balegedde Ramachandran , Christian Walsdorff , Regina Benfer , Anton Wellenhofer , Ulrike Wenning , Heinz Boelt , Hendrik Reyneke , Christine Toegel
IPC分类号： C07C5/48 , C07C7/00 , C07C7/08 , C07C7/09 , C07C7/11 , C07C11/167
摘要： The invention relates to a process for producing butadiene from n-butenes which comprises the steps of: A) providing a vaporous n-butenes-comprising input gas stream a1 by evaporating a liquid n-butenes-comprising stream a0; B) introducing the vaporous n-butenes-comprising input gas stream a1 and an at least oxygenous gas into at least one oxidative dehydrogenation zone and oxidatively dehydrogenating n-butenes to butadiene to obtain a product gas stream b comprising butadiene, unconverted n-butenes, steam, oxygen, low-boiling hydrocarbons, high-boiling secondary components, possibly carbon oxides and possibly inert gases, Ca) chilling the product gas stream b by contacting with a cooling medium comprising an organic solvent in at least one chilling zone, the cooling medium being at least partially recycled into the chilling zone, Cb) compressing the chilled product gas stream b which is possibly depleted of high-boiling secondary components in at least one compression stage to obtain at least one aqueous condensate stream c1 and a gas stream c2 comprising butadiene, n-butenes, steam, oxygen, low-boiling hydrocarbons, possibly carbon oxides and possibly inert gases, D) removing noncondensable and low-boiling gas constituents comprising oxygen, low-boiling hydrocarbons, possibly carbon oxides and possibly inert gases as gas stream d2 from the gas stream c2 by absorbing the C4 hydrocarbons comprising butadiene and n-butenes into an absorption medium to obtain a C4-hydrocarbons-laden absorption medium stream and the gas stream d2 and subsequently desorbing the C4 hydrocarbons from the laden absorption medium stream to obtain a C4 product gas stream d1, wherein at least some of the recycled cooling medium from step Ca) is brought into thermal contact with the liquid n-butenes-comprising stream a0 in one or more indirect heat exchangers and at least some of the liquid n-butenes-comprising stream a0 is evaporated by indirect heat transfer with the recycled cooling medium.

8. 发明授权

US10647639B2 Method for preparing 1,3-butadiene from N-butenes by oxidative dehydrogeneation 有权
公开(公告)号：US10647639B2
公开(公告)日：2020-05-12
申请号：US16074454
申请日：2017-01-30
申请人： BASF SE , Linde AG
发明人： Jan Pablo Josch , Ragavendra Prasad Balegedde Ramachandran , Ulrike Wenning , Anton Wellenhofer , Christine Toegel , Hendrik Reyneke , Heinz Boelt
IPC分类号： C07C5/48 , C07C7/08 , C07C7/11 , C07C11/08 , C07C11/167
摘要： The invention relates to a method for producing butadiene from n-butenes having the steps: A) providing an n-butene-comprising feed gas stream a; B) feeding the n-butene-comprising feed gas stream a and an oxygen-comprising gas into at least one oxidative dehydrogenation zone and oxidatively dehydrogenating n-butenes to butadiene, wherein a product gas stream b comprising butadiene, unreacted n-butenes, steam, oxygen, low-boiling hydrocarbons, high-boiling minor components, optionally carbon oxides and optionally inert gases is obtained; Ca) cooling the product gas stream b by contacting it with a refrigerant and condensing at least a part of the high-boiling minor components; Cb) compressing the remaining product gas stream b in at least one compression step, wherein at least one aqueous condensate stream c1 and a gas stream c2 comprising butadiene, n-butenes, steam, oxygen, low-boiling hydrocarbons, optionally carbon oxides and optionally inert gases is obtained; Da) separating off non-condensable and low-boiling gas components comprising oxygen, low-boiling hydrocarbons, optionally carbon oxides and optionally inert gases as gas stream d2 from the gas stream c2 by absorbing the C4 hydrocarbons comprising butadiene and n-butenes in an absorption medium, wherein an absorption medium stream loaded with C4 hydrocarbons and the gas stream d2 are obtained, and Db) subsequently desorbing the C4 hydrocarbons from the loaded absorption medium stream in a desorption column, wherein a C4 product gas stream d1 is obtained, Dc) separating off the steam condensate from the absorption medium in a phase separator and vaporizing it in a steam generator and providing it again as stripping gas in the desorption column, wherein, the steam condensate before the vaporization in a steam generator, is subjected to a pretreatment in a further method step.

9. 发明授权

US11834356B2 Process and device for treating a waste lye 有权
公开(公告)号：US11834356B2
公开(公告)日：2023-12-05
申请号：US17051124
申请日：2019-04-26
申请人： LINDE GmbH
发明人： Anton Wellenhofer , Jörg Zander , Ekaterina Ananieva , Florian Hairer , Michael Baus , Martin Schubert
IPC分类号： C02F1/72 , C02F1/74 , C02F11/08 , C02F101/10 , C02F103/18
CPC分类号： C02F1/727 , C02F1/74 , C02F11/08 , C02F2101/101 , C02F2103/18
摘要： The invention relates to a process for treating a waste lye of a lye scrub using an oxidation reactor (100), the waste lye and oxygen or an oxygen-containing gas mixture being introduced into the oxidation reactor (100) and steam being introduced into the oxidation reactor (100). It is provided that the steam is at least partially introduced by means of a steam feeding device (10), which has a cylindrical section (11) with a centre axis (12) and a wall (13), the centre axis (12) being aligned perpendicularly, a number of groups of openings (14) being formed in the wall, each of the groups comprising a number of the openings (14), and the number of openings (14) of each of the groups being arranged in one or more planes (15) that is or are in each case aligned perpendicularly to the centre axis (12). A corresponding installation and also a corresponding oxidation reactor (100) are likewise the subject of the present invention.

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