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1. 发明申请

US20190337870A1 METHOD OF STARTING UP A REACTOR FOR THE OXIDATIVE DEHYDROGENATION OF N-BUTENES 审中-公开
公开(公告)号：US20190337870A1
公开(公告)日：2019-11-07
申请号：US16324315
申请日：2017-08-08
申请人： BASF SE , LINDE AG
发明人： JAN UNGELENK , Oliver HAMMEN , Ulrich HAMMON , Rainer ECKRICH , Signe UNVERRICHT , Christian WALSDORFF , Heinz BOELT , Hendrik REYNEKE , Christine TOEGEL , Anton WELLENHOFER , Ulrike WENNING
IPC分类号： C07C5/48 , C07C7/11 , C07C11/167
摘要： Process for preparing butadiene from n-butenes, which has a start-up phase and an operating phase and the operating phase of the process comprises the steps: A) provision of a feed gas stream a1 comprising n-butenes; B) introduction of the feed gas stream a1 comprising n-butenes, an oxygen-comprising gas stream a2 and an oxygen-comprising recycle gas stream d2 into at least one oxidative dehydrogenation zone and oxidative dehydrogenation of n-butenes to butadiene, giving a product gas stream b comprising butadiene; C) cooling and compression of the product gas stream b, giving at least one aqueous condensate stream c1 and a gas stream c2 comprising butadiene; D) introduction of the gas stream c2 into an absorption zone and separation of incondensable and low-boiling gas constituents as gas stream d from the gas stream c2 by absorption of the C4 hydrocarbons in an absorption medium, giving an absorption medium stream loaded with C4 hydrocarbons and the gas stream d, and recirculation of the gas stream d as recycle gas stream d2 to the oxidative dehydrogenation zone, where the start-up phase comprises the steps, in the order i) to iv): i) introduction of a gas stream d2′ having a composition corresponding to the recycle gas stream d2 in the operating phase into the dehydrogenation zone and setting of the recycle gas stream d2 to at least 70% of the total volume flow in the operating phase; ii) optionally additional introduction of a steam stream a3 into the dehydrogenation zone; iii) additional introduction of the feed gas stream a1 comprising butenes at a lower volume flow than in the operating phase and raising of this volume flow until at least 50% of the volume flow of the feed gas stream a1 in the operating phase has been attained, with the total gas flow through the dehydrogenation zone corresponding to not more than 120% of the total gas flow during the operating phase; iv) additional introduction, when at least 50% of the volume flow of the feed gas stream a1 comprising butenes in the operating phase has been attained, of an oxygen-comprising stream a2 at a lower volume flow than in the operating phase and raising of the volume flows of the feed gas streams a1 and a2 until the volume flows in the operating phase have been attained, with the total gas flow through the dehydrogenation zone corresponding to not more than 120% of the total gas flow during the operating phase.

2. 发明申请

US20200039901A1 METHOD FOR DECOMMISIONING AND REGENERATING A REACTOR FOR THE OXIDATIVE DEHYDROGENATION OF N-BUTENES 审中-公开
公开(公告)号：US20200039901A1
公开(公告)日：2020-02-06
申请号：US16498693
申请日：2018-03-26
申请人： BASF SE , Linde AG
发明人： Jan UNGELENK , Oliver HAMMEN , Christian WALSDORFF , Rainer ECKRICH , Heinz BOELT , Christine TOEGEL , Ulrike WENNING , Hendrik REYNEKE , Anton WELLENHOFER
IPC分类号： C07C11/167 , C07C7/04 , C07C7/11 , C07C5/333
摘要： The invention relates to a process for preparing butadiene from n-butenes in n reactors R1 to Rn operated in parallel, wherein the process in the production phase of a reactor Rm in the n reactors comprises the steps: A) provision of a feed gas stream a1m comprising n-butenes; B) feeding of the feed gas stream a1m comprising n-butenes, an oxygen-comprising gas stream a2m and a substream d2m of an oxygen-comprising total recycle gas stream d2 into the oxidative dehydrogenation zone of the reactor and oxidative dehydrogenation of n-butenes to butadiene, giving a product gas substream bm comprising butadiene; C) combination of the product gas substream bm with further product gas substreams to form a total product gas stream b and cooling and compression of the total product gas stream b and condensation of at least part of the high-boiling secondary components, giving at least one aqueous condensate stream c1 and a gas stream c2 comprising butadiene; D) feeding of the gas stream c2 into an absorption zone and separation of incondensable and low-boiling gas constituents as gas stream d from the gas stream c2 by absorption of the C4-hydrocarbons in an absorption medium, giving an absorption medium stream d1 loaded with C4-hydrocarbons and a recycle gas stream d2, and recirculation of a substream d2m of the total recycle gas stream d2 into the reactor Rm, and during the regeneration phase of the reactor Rm further reactors are in the production phase and the regeneration phase of the reactor Rm comprises the steps in the order i) to v): i) reduction of the feed gas stream a1m comprising n-butenes and of the oxygen-comprising gas stream a2m and the feeding of an inert gas stream a4m into the reactor Rm; ii) further reduction of the feed gas stream a1m comprising n-butenes down to 0, reduction of the recycle gas substream d2m and increase of the inert gas stream a4m until the oxygen content in the reactor Rm is from 2 to 3% by volume; iii) regeneration of the catalyst by burning off carbon-comprising deposits at an oxygen content of from 2 to 3% by volume; iv) reduction of the inert gas stream a4m and increase of the recycle gas substream d2m until the oxygen content in the reactor Rm is from 4 to 10% by volume; v) reoxidation of the catalyst at an oxygen content of from 4 to 10% by volume.

3. 发明申请

US20170233313A1 PROCESS FOR PREPARING 1,3-BUTADIENE FROM N-BUTENES BY OXIDATIVE DEHYDROGENATION 有权
公开(公告)号：US20170233313A1
公开(公告)日：2017-08-17
申请号：US15503189
申请日：2015-08-11
申请人： BASF SE , Linde AG
发明人： Philipp GRÜNE , Oliver HAMMEN , Rainer ECKRICH , Jan Pablo JOSCH , Christian WALSDORFF , Andre BIEGNER , Gergor BLOCH , Heinz BOELT , Hendrik REYNEKE , Christine TOEGEL , Ulrike WENNING
IPC分类号： C07C5/48
CPC分类号： C07C5/48 , C07C7/005 , C07C7/08 , C07C7/09 , C07C7/11 , C07C2523/887 , C07C11/167
摘要： The invention relates to a process for preparing butadiene from n-butenes, comprising the steps of: A) providing an input gas stream a comprising n-butenes, B) feeding the input gas stream a 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 b comprising butadiene, unconverted n-butenes, water vapor, oxygen, low-boiling hydrocarbons and high-boiling secondary components, with or without carbon oxides and with or without inert gases; Ca) cooling the product gas stream b by contacting with a cooling medium in at least one cooling zone, the cooling medium being at least partly recycled and having an aqueous phase and an organic phase of an organic solvent, wherein the organic solvent is selected from the group consisting of toluene, o-, m- and p-xylene, mesitylene, mono-, di- and triethylbenzene, mono-, di- and triisopropylbenzene and mixtures thereof, and the mass ratio of the aqueous phase to the organic phase in the cooling medium when it is fed into the cooling zones prior to the contacting with the product gas stream being from 0.015:1 to 10:1, Cb) compressing the cooled product gas stream b which may have been depleted of high-boiling secondary components in at least one compression stage, giving at least one aqueous condensate stream c1 and one gas stream c2 comprising butadiene, n-butenes, water vapor, oxygen and low-boiling hydrocarbons, with or without carbon oxides and with or without inert gases; D) removing uncondensable and low-boiling gas constituents comprising oxygen and low-boiling hydrocarbons, with or without carbon oxides and with or without inert gases, as gas stream d2 from the gas stream c2 by absorbing the C4 hydrocarbons comprising butadiene and n-butenes 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 with a butadiene-selective solvent into a stream e1 comprising butadiene and the selective solvent and a stream e2 comprising n-butenes; F) distilling the stream e1 comprising butadiene and the selective solvent into a stream f1 consisting essentially of the selective solvent and a stream f2 comprising butadiene.

4. 发明申请

US20180282246A1 METHOD FOR PRODUCING 1,3-BUTADIENE BY DEHYDROGENATING N-BUTENES, A MATERIAL FLOW CONTAINING BUTANES AND 2-BUTENES BEING PROVIDED 审中-公开
公开(公告)号：US20180282246A1
公开(公告)日：2018-10-04
申请号：US15525330
申请日：2015-11-09
申请人： BASF SE , Linde AG
发明人： Jan UNGELENK , Philipp GRÜNE , Christian WALSDORFF , Jan Pablo JOSCH , Michael BENDER
IPC分类号： C07C5/48 , C07C11/167 , C07C6/04 , C07C7/08 , C07C7/11 , C07C2/06 , C07C2/56 , C07C11/06 , C07C9/16
CPC分类号： C07C5/48 , C07C2/06 , C07C2/10 , C07C2/56 , C07C2/62 , C07C6/04 , C07C7/08 , C07C7/11 , C07C9/16 , C07C11/06 , C07C11/167 , C07C2521/04 , C07C2523/18 , C07C2523/28 , C07C2523/30 , C07C2523/36 , C07C2523/755 , C07C2527/043 , C07C2527/1206 , C07C2527/126 , C10G7/06 , C10G29/205 , C10G53/04 , C10G2300/1092 , C10G2300/305 , C10G2400/02 , C07C11/08 , C07C9/10 , C07C9/21 , C07C11/02
摘要： The invention relates to a process for preparing 1,3-butadiene from n-butenes, comprising the steps of: A) providing an input gas stream a comprising butanes, 1-butene, 2-butene and isobutene, with or without 1,3-butadiene, from a fluid catalytic cracking plant; B) removing isobutene from the input gas stream a, giving a stream b comprising butanes, 1-butene and 2-butene, with or without 1,3-butadiene; C) feeding the stream b comprising butanes, 1-butene and 2-butene and optionally an, oxygenous gas and optionally water vapor into at least one dehydrogenating zone and dehydrogenating 1-butene and 2-butene to 1,3-butadiene, giving a product gas stream c comprising 1,3-butadiene, butanes, 2-butene and water vapor, with or without oxygen, with low-boiling hydrocarbons, with high-boiling secondary components, with or without carbon oxides and with or without inert gases; D) cooling and compressing the product gas stream c, giving at least one aqueous condensate stream d1 and a gas stream d2 comprising 1,3-butadiene, butanes, 2-butene and water vapor, with or without oxygen, with low-boiling hydrocarbons, with or without carbon oxides and with or without inert gases; Ea) removing uncondensable and low-boiling gas constituents comprising low-boiling hydrocarbons, with or without oxygen, with or without carbon oxides and with or without inert gases, as gas stream e2 from the gas stream d2 by absorbing the C4 hydrocarbons comprising 1,3-butadiene, butanes and 2-butene in an absorbent, giving an absorbent stream laden with C4 hydrocarbons and the gas stream e2, and Eb) subsequently desorbing the C4 hydrocarbons from the laden absorbent stream, giving a C4 hydrocarbon stream e1; F) separating the C4 hydrocarbon stream e1 by extractive distillation with a 1,3-butadiene-selective solvent into a stream f1 comprising 1,3-butadiene and the selective solvent and a stream f2 comprising butanes and 2-butene, wherein at least 90% of the 1-butene present in stream b is converted in step C) and a product stream f2 comprising butanes and 2-butene is obtained in step F.

5. 发明申请

US20170334809A1 PROCESS FOR PREPARING 1,3-BUTADIENE FROM N-BUTENES BY OXIDATIVE DEHYDROGENATION 审中-公开
公开(公告)号：US20170334809A1
公开(公告)日：2017-11-23
申请号：US15523862
申请日：2015-11-02
申请人： BASF SE , Linde AG
发明人： Philipp GRUNE , 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 , C07C7/04 , C07C7/00 , C07C7/11 , C07C11/167
CPC分类号： C07C5/48 , C07C7/005 , C07C7/04 , C07C7/08 , C07C7/11 , C07C11/167 , C07C2523/31 , C07C2523/843 , C07C2523/847
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.

6. 发明公开

US20240091756A1 METHOD FOR PRODUCING A CORE-SHELL CATALYST 审中-公开
公开(公告)号：US20240091756A1
公开(公告)日：2024-03-21
申请号：US18032609
申请日：2021-10-20
申请人： BASF SE
发明人： Samira PARISHAN , Kazuhiko AMAKAWA , Ulrich HAMMON , Christian WALSDORFF , Necip NESELI , Markus MUEHL
IPC分类号： B01J37/02 , B01J23/00 , B01J23/887 , B01J35/30 , B01J35/55 , B01J35/63 , B01J37/00
CPC分类号： B01J37/0215 , B01J23/002 , B01J23/8877 , B01J35/395 , B01J35/397 , B01J35/55 , B01J35/63 , B01J37/0018 , B01J2523/17 , B01J2523/53 , B01J2523/55 , B01J2523/68 , B01J2523/69
摘要： A process for producing an eggshell catalyst, comprising the coating of the outer surface of a geometric shaped support body with a catalytically active multielement oxide or a powder P, wherein the powder P, after being coated, is converted by thermal treatment to a catalytically active multielement oxide, and one or more liquid binders, wherein the coating is conducted in a horizontal mixer and the Froude number during the coating in the horizontal mixer is from 0.0160 to 0.1200.

7. 发明公开

US20230144424A1 METHOD FOR PRODUCING A CATALYTICALLY ACTIVE MULTI-ELEMENT OXIDE CONTAINING THE ELEMENTS MO, W, V AND CU 审中-公开
公开(公告)号：US20230144424A1
公开(公告)日：2023-05-11
申请号：US17918345
申请日：2021-04-12
申请人： BASF SE
发明人： Kazuhiko AMAKAWA , Samira PARISHAN , Christian WALSDORFF , Patrick HUBACH , Tobias WEINLAND
IPC分类号： B01J23/888 , B01J37/08 , B01J6/00 , B01J37/00 , B01J35/10 , B01J8/02 , C07C51/235
CPC分类号： B01J23/8885 , B01J37/08 , B01J6/004 , B01J37/0045 , B01J35/1014 , B01J8/02 , C07C51/235 , C07C2523/888
摘要： A process for producing a catalytically active multielement oxide comprising the elements Mo, W, V and Cu, wherein at least one source of the elemental constituents W of the multielement oxide is used to produce an aqueous solution, the resultant aqueous solution is admixed with sources of the elemental constituents Mo and V of the multielement oxide, drying of the resultant aqueous solution produces a powder P, the resultant powder P is optionally used to produce geometric shaped precursor bodies, and the powder P is or the geometric shaped precursor bodies are subjected to thermal treatment to form the catalytically active composition, wherein the aqueous solution used for drying comprises from 1.6% to 5.0% by weight of W and from 7.2% to 26.0% by weight of Mo, based in each case on the total amount of aqueous solution.

8. 发明申请

US20210162391A1 SHAPED CATALYST BODY IN THE FORM OF TETRALOBES OF UNIFORM WALL THICKNESS 有权
公开(公告)号：US20210162391A1
公开(公告)日：2021-06-03
申请号：US16979131
申请日：2019-02-19
申请人： BASF SE
发明人： Christian WALSDORFF , Marco Oskar KENNEMA , Marcelo Daniel KAUFMAN RECHULSKI , Holger BORCHERT
IPC分类号： B01J35/02 , B01J21/08 , B01J23/22 , B01J27/055 , B01J6/00 , B01J35/04
摘要： The invention relates to a shaped catalyst body in the form of a tetralobe having four circular through-passages, with the midpoints of the through-passages forming a square and the spacings between in each case two adjacent through-passages being from 0.8 to 1.2 times the thickness of the outer walls of the through-passages. The shaped catalyst body is used for the oxidation of S02 to S03.

9. 发明申请

US20210154652A1 DIE COMPRISING METAL PRINTED PARTS FOR THE EXTRUSION OF MOULDED BODIES 有权
公开(公告)号：US20210154652A1
公开(公告)日：2021-05-27
申请号：US17056753
申请日：2019-05-17
申请人： BASF SE
发明人： Marco Oskar KENNEMA , Christian WALSDORFF , Fred BORNINKHOF , Matthias Johannes WAGNER , Bernd SCHUBE , Jochen ROERIG , Gerald BASTIAN , Sabine HUBER , Marcelo Daniel KAUFMAN RECHULSKI
IPC分类号： B01J37/00 , B33Y70/00 , B33Y30/00 , B33Y80/00 , B33Y10/00 , B29C48/11 , B29C48/30 , B01J35/04
摘要： The invention relates to a die (10) for the extrusion of catalyst molding, catalyst support molding, or adsorbent molding (60) in flow direction (32) of an extrudable composition from an entry side (12) to a discharge side (14) of the die comprising a shell (56) and comprising one or more channel-formers (18) which are displacers of the extrudable composition and which extend in flow direction of the extrudable composition, wherein the channel-formers (18) have been metal-printed.
It is preferable that this is free from cavities for receiving extrudable composition which extend at right angles to the flow direction (32) of the extrudable composition, and that this is free from connections running at right angles from channel-formers (18) to the interior side wall (22) of the die (10).
The invention further relates to a process for the production, by means of 3D metal printing, of a metal-printed die (10) for the extrusion of catalyst moldings/support moldings (60).

10. 发明申请

US20160152541A1 PROCESS FOR PREPARING ACRYLIC ACID 有权
标题翻译：制备丙烯酸的方法
公开(公告)号：US20160152541A1
公开(公告)日：2016-06-02
申请号：US14956800
申请日：2015-12-02
申请人： BASF SE
发明人： Yong LIU , Martin DIETERLE , Nicolai Tonio WOERZ , Andrei-Nicolae PARVULESCU , Michael LEJKOWSKI , Johannes LIEBERKNECHT , Christian WALSDORFF , Kazuhiko AMAKAWA
IPC分类号： C07C51/353
CPC分类号： C07C51/353 , B01J23/002 , B01J27/198 , B01J27/199 , B01J29/7057 , B01J35/023 , B01J37/0036 , B01J37/0203 , B01J37/0205 , B01J37/0213 , B01J37/08 , B01J38/02 , B01J2523/00 , Y02P20/584 , C07C57/04 , B01J2523/41 , B01J2523/51 , B01J2523/54 , B01J2523/55 , B01J2523/69
摘要： The present invention relates to a process for preparing acrylic acid from acetic acid and formaldehyde, which comprises (a) provision of a stream S1 comprising acetic acid and formaldehyde, where the molar ratio of acetic acid to formaldehyde in the stream S1 is in the range from 0.5:1 to 2:1; (b) contacting of the stream S1 with an aldol condensation catalyst comprising vanadium, phosphorus and oxygen to give a stream S2 comprising acrylic acid, where, in (b), the space velocity WHSV is in the range from 0.35 to 7.0 kg/kg/h.
摘要翻译：本发明涉及从乙酸和甲醛制备丙烯酸的方法，其包括（a）提供包含乙酸和甲醛的料流S1，其中料流S1中乙酸与甲醛的摩尔比在该范围内从0.5：1至2：1; （b）流S1与包含钒，磷和氧的醛醇缩合催化剂接触，得到包含丙烯酸的流S2，其中（b）中的空间速度WHSV为0.35-7.0kg / kg /H。

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