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公开(公告)号：EP3344578A1
公开(公告)日：2018-07-11
申请号：EP16759776.4
申请日：2016-09-01
发明人： THIELERT, Holger , GUETTA, Zion
IPC分类号： C01B17/765 , C01B17/79
摘要： The invention relates to a method for producing sulfuric acid, wherein, in a production mode of the method, sulfur is oxidized in a first oxidation stage in order to produce sulfur dioxide and wherein the sulfur dioxide is catalytically oxidized in a second oxidation stage in order to produce sulfur trioxide. The sulfur trioxide is absorbed in at least one absorption stage. In the production mode, process gases are discharged from the absorption stage that is last in the flow direction. In a stand-by mode of the method, at least one heating stage for heating the processes gases is activated. The process gases exiting the absorption stage are conducted to the heating stage, and the processes gases are circulated through the heating stage, the second oxidation stage, and the absorption stage.
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12.发明公开SINGLE CONTACT, SINGLE ABSORPTION SYSTEM FOR PRODUCING SULFURIC ACID WITH HIGH CONVERSION EFFICIENCY 审中-公开EINZELKONTAKT-与单吸收系统用于生产硫酸高转换效率
公开(公告)号：EP3152156A1
公开(公告)日：2017-04-12
申请号：EP15724489.8
申请日：2015-05-13
申请人： Chemetics Inc.
发明人： LYNE, Graham
IPC分类号： C01B17/79 , B01J23/847 , B01J23/42 , C01B17/80
CPC分类号： C01B17/79 , B01J23/22 , B01J23/42 , B01J35/0006 , B01J35/02 , B01J35/04 , B01J37/0215 , C01B17/765 , C01B17/803 , C01B17/806
摘要： Commercial production of sulfuric acid is almost entirely accomplished nowadays using the contact process. And the trend is to increase conversion efficiency and reduce emissions of unconverted sulfur dioxide. By using a special combination of contact catalyst beds, a single contact single absorption (SCSA) system can be engineered to achieve the conversion and emission capabilities of conventional double contact double absorption systems. Thus, the complexity and cost of incorporating a second absorption tower and associated heat exchanger in the system can be omitted. In the SCSA system, the initial catalyst bed or beds comprise vanadium oxide catalyst and the last catalyst bed or beds comprise platinum catalyst operating at a much lower temperature than the initial beds.
摘要翻译： 商业生产硫酸的使用接触过程几乎完全实现现今。 并且趋势是提高转换效率和减少的未转化的二氧化硫排放。 通过使用接触催化剂床的特殊组合，单个接触单个吸收（SCSA）系统可被设计成实现传统的双接触双吸收系统的转化率和发射能力。 因此，在系统的复杂性并结合第二吸收塔的成本和相关联的换热器可以省略。 在SCSA系统中，初始的催化剂床或床包括氧化钒催化剂和催化剂负载床或床包括铂催化剂在比初始床的低得多的温度下操作。
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公开(公告)号：EP0852159B1
公开(公告)日：2003-05-21
申请号：EP97122125.4
申请日：1997-12-16
申请人： Haldor Topsoe A/S
发明人： Schoubye, Peter
CPC分类号： B01D53/8615 , B01D53/8603 , B01D53/8609 , C01B17/76 , C01B17/765
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14.发明公开VANADIUM-CONTAINING CATALYST, PROCESS FOR THE PRODUCTION THEREOF, AND USE THEREOF 失效钒催化剂的方法，其制造方法及其应用
公开(公告)号：EP0775519A4
公开(公告)日：2000-06-28
申请号：EP96916335
申请日：1996-06-07
IPC分类号： B01J23/22 , C07C5/48 , C07C45/36 , C07C67/40 , C07C253/24 , B01J27/198 , B01J37/30 , C01B17/79 , C07C47/54 , C07C69/06 , C07C255/08
CPC分类号： C07C253/24 , B01J23/22 , C07C5/48 , C07C45/36 , C07C67/40 , Y02P20/52 , C07C47/54 , C07C47/575 , C07C69/06 , C07C255/08
摘要： A vanadium-containing catalyst produced by using polyvanadic acid as the vanadium source. Such a catalyst can be produced by mixing a polyvanadic acid sol prepared by subjecting an aqueous solution of a metavanadate salt to ion exchange with a proton-form cation-exchange resin and polycondensation with the catalyst-constituting components other than vanadium or precursors thereof, and drying and/or firing the obtained mixture. This catalyst exhibits enough catalytic activity even under mild reaction conditions and can suitably be used in the synthesis of phthalic anhydride by partial oxidation of o-xylene, that of benzaldehyde by partial oxidation of toluene, that of benzoic acid by partial oxidation of toluene, that of anisaldehyde by partial oxidation of p-methoxytoluene, that of propylene by oxidative dehydrogenation of propane, that of isobutene by oxidative dehydrogenation of isobutane, that of methyl formate by oxidative dehydrogenation of methanol, that of acrylonitrile by ammoxidation of propane, and so on.
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公开(公告)号：EP0450680A2
公开(公告)日：1991-10-09
申请号：EP91200501.4
申请日：1991-03-08
发明人： Fennemann, Wolfgang
IPC分类号： B01J23/22 , B01J27/053 , C01B17/79
CPC分类号： B01J27/053 , B01J23/22 , C01B17/79
摘要： Ein Vanadiumoxid und Alkaliverbindungen enthaltender Katalysator zur Oxidation von SO₂ zu SO₃ wird durch Tränken vorgefertigter Trägerkörper mit Tränklösungen, die Vanadium und Alkalien enthalten, thermische Behandlung der getränkten Trägerkörper bei erhöhter Temperatur und anschließende Aktivierung bei einer Temperatur von 750 - 1000°C unter oxidierenden Bedingungen hergestellt. Zur Herstellung der Tränklösungen wird feinkörniges V₂O₅ in saurem, wäßrigem Medium unter Zusatz eines Reduktionsmittels und Reduktion zu VO²⁺ aufgelöst, wobei Säure und Reduktionsmittel etwa in stöchiometrischer Menge zur Auflösung und Reduktion des V₂O₅ eingesetzt werden. Die Alkalien werden als Salze eingesetzt. In der Lösung wird eine SO₄-Menge eingestellt, die zur Überführung der gesamten Menge der Alkalien in neutrale Sulfate bei der Trocknung und Aktivierung ausreicht.
摘要翻译： 甲氧化钒和含催化剂的SO 2氧化由预制承载体的浸渍浸渍含有钒和碱，在升高的温度和随后的激活浸渍过的载体体的热处理在750的温度下的解决方案，以SO 3的碱金属化合物 - 由氧化条件下1000℃ ， 为了制备浸渍溶液与除了VO还原剂和还原的酸性含水介质中细粒V2O5溶解<+>，其中酸和还原剂在大约化学计量的量被用于溶解，降低了V2O5。 所述碱被用作盐。 在该解决方案中，SO4-量设定为足以将碱成中性硫酸盐的全部量转换干燥和活化过程中。
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公开(公告)号：EP0224462A2
公开(公告)日：1987-06-03
申请号：EP86870153.3
申请日：1986-10-23
申请人： Monsanto Company
IPC分类号： B01J21/08 , B01J37/00 , B01J23/22 , B01J27/053 , C01B17/79
CPC分类号： B01J32/00 , B01J21/08 , B01J27/053
摘要： A carrier for a catalyst wherein a mass of silicon dioxide particles molded into a predetermined configuration are fused together by a bonding compound selected from the group consisting of sodium metaborate, potassium borate, ammonium borate and sodium tetraborate, A preferred use for the carrier is in the support of a potassium/vanadium catalyst for oxidizing sulfur dioxide to sulfur trioxide. The catalyst carrier exhibits superior resistance to attrition.
摘要翻译： 用于催化剂的载体，其中通过选自偏硼酸钠，硼酸钾，硼酸铵和四硼酸钠的键合化合物将模制成预定构型的二氧化硅颗粒的质量熔合在一起。载体的优选用途是 用于将二氧化硫氧化成三氧化硫的钾/钒催化剂的载体。 催化剂载体表现出优异的耐磨性。
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公开(公告)号：EP3762145A1
公开(公告)日：2021-01-13
申请号：EP19707016.2
申请日：2019-02-28
申请人： BASF SE
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公开(公告)号：EP3317226A1
公开(公告)日：2018-05-09
申请号：EP16733509.0
申请日：2016-06-29
申请人： Haldor Topsøe A/S
IPC分类号： C01B17/765 , C01B17/79 , B01D53/86 , C01B17/54
摘要： A process plant for production of sulfuric acid from a process gas comprising SO2, including a process gas inlet, a first SO2 converter having an inlet and an outlet, a first condenser having a gas inlet, a gas outlet and a liquid outlet, a gas mixing device having a first inlet, a second inlet and an outlet, a process gas heater having an inlet and an outlet, a second SO2 converter having an inlet and an outlet, a second condenser having a gas inlet, a gas outlet and a liquid outlet, one or more means for cooling and storage of sulfuric acid and a purified process gas outlet.
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公开(公告)号：EP2462057A1
公开(公告)日：2012-06-13
申请号：EP10732357.8
申请日：2010-07-12
CPC分类号： C01B17/765 , C01B17/79
摘要： The invention relates to a method and an installation for producing sulphuric acid. First of all, a product gas flow (5) containing sulphur dioxide is produced. The product gas flow (5) is supplied to a reaction chamber (1). A catalyst (3) is located in the reaction chamber (1). In the presence of said catalyst sulphur dioxide reacts to form sulphur trioxide. In further parts of the installation the resulting sulphur trioxide is converted to sulphuric acid. According to the invention, an oxidising gas flow (6) is supplied to the reaction chamber (1) alternately with the product gas flow (5).
摘要翻译： 本发明涉及一种生产硫酸的方法和装置。 首先，产生含有二氧化硫的产物气流（5）。 产物气流（5）被供应到反应室（1）。 催化剂（3）位于反应室（1）中。 在催化剂存在下，二氧化硫反应形成三氧化硫。 在安装的另外部分中，将所得的三氧化硫转化成硫酸。 根据本发明，氧化气体流（6）与产物气流（5）交替地供应到反应室（1）。
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