会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明专利
    • CONCENTRATION OF SULFURIC ACID
    • JPH10182114A
    • 1998-07-07
    • JP32317097
    • 1997-11-25
    • TOPSOE HALDOR AS
    • SCHOUBYE PETER
    • C01B17/88
    • PROBLEM TO BE SOLVED: To provide a method for concentrating sulfuric acid, by which a corrosion problem, an energy consumption and a cost are reduced by regulating a temperature of the charging flow of the sulfuric acid and a temperature of a hot air so as to be each a specific temperature and condensing the off-gas from a concentrating tower in vertical glass tubes of a condenser when bringing a charging flow of the sulfuric acid into countercurrent contact with the hot air to concentrate the sulfuric acid into the one having a prescribed concentration in the packed concentrating tower. SOLUTION: This method for concentrating a sulfuric acid 22 by introducing the sulfuric acid 22 condensed in an air-cooling and flowing down film-type condenser 15 and having 90-98% H2 SO4 concentration to a packed concentrating tower 20, and bringing the introduced sulfuric acid 22 into countercurrent contact with a hot air 23 having a regulated temperature by flowing through a heat-exchanger 4, or a thermal process gas from a sulfuric acid plant to provide the sulfuric acid having 95-98.8% H2 GO4 concentration, is performed by regulating both the temperature of the charging liquid of the sulfuric acid 22, and the temperature of the hot air 23 or the thermal process gas so as to be 150-270 deg.C and 350-600 deg.C respectively when introducing the sulfuric acid 22, and the hot air or the thermal process gas into the packed condensation tower 20. Further, the H2 SO4 in a off gas 24 from the tower 20 is condensed in a vertical glass tube of a condenser 15, or in a packed concentration tower in which a circulating sulfonic acid having 160-260 deg.C when removing the tower is brought into countercurrent contact with the gas.
    • 5. 发明专利
    • METHOD FOR DESULFURIZING GASEOUS SUBSTANCE
    • JPH10202059A
    • 1998-08-04
    • JP35925497
    • 1997-12-26
    • TOPSOE HALDOR AS
    • SCHOUBYE PETER
    • B01D53/86B01J23/22C01B17/74C01B17/76C01B17/765C01B17/79
    • PROBLEM TO BE SOLVED: To enhance treating ability by changing over a desulfurizing process in each of plural reactors connected in series and contg. oxidation catalyst layers laminated on inert material layers so that the direction of a flow of gas is reversed at intervals of a specified time and keeping the oxidation catalyst layers in a specified temp. range. SOLUTION: When a gaseous substance contg. O2 , SO2 , SO3 , etc., and/or org. sulfur-contg. components is desulfurized in reactors 3a, 3b connected in series and contg. oxidation catalyst layers 5a, 5b laminated on inert material layers 4a, 4b, combustible components are oxidized to H2 O, CO2 and SO2 , all SO2 is further oxidized to SO3 and all SO3 is hydrated with at least one equiv. H2 O based on the amt. of SO3 in the gas. The hydrated SO3 is condensed as sulfuric acid. At this time, the direction of a flow of gas in each of the reactors is reversed after about 1-40min and the layers 5a, 5b are kept in the temp. range of 300-500 deg.C. A flow of gas after the reactions is kept at a temp. below the dew point of the gas giving H2 SO4 by at least 50 deg.C.
    • 10. 发明申请
    • PROCESS AND APPARATUS FOR SULPHURIC ACID PRODUCTION
    • 硫酸生产工艺及装置
    • WO2011147538A2
    • 2011-12-01
    • PCT/EP2011002379
    • 2011-05-13
    • TOPSOE HALDOR ASMOELLERHOEJ MARTINLYKKE MADSTHELLEFSEN MORTENSCHOUBYE PETER
    • MOELLERHOEJ MARTINLYKKE MADSTHELLEFSEN MORTENSCHOUBYE PETER
    • C01B17/765
    • C01B17/765
    • A process for the conversion of sulphur dioxide contained in a feed gas to sulphur trioxide, comprising the steps of a) alternatingly providing a first feed gas containing a high concentration of sulphur dioxide and a second feed gas containing a low concentration of sulphur dioxide as a process gas, b) preheating the process gas by heat exchange with a heat exchange medium, c) reacting the process gas in the presence of a catalytically active material in a catalytic reaction zone, d) converting at least in part the sulphur dioxide of the process gas into sulphur trioxide contained in a product gas in the catalytic reaction zone, e) cooling the product gas by contact with a heat exchange medium, wherein a thermal buffer zone is provided in relation to one of said process steps, providing thermal energy produced during super-autothermal operation for heating the process gas during sub-autothermal operation.
    • 一种将进料气体中所含的二氧化硫转化为三氧化硫的方法,包括以下步骤:a)交替地提供含有高浓度二氧化硫的第一进料气体和含有低浓度二氧化硫的第二进料气体作为 工艺气体,b)通过与热交换介质的热交换来预热工艺气体,c)在催化反应区域中使催化活性材料存在下使工艺气体反应,d)至少部分地将二氧化硫 将催化反应区中产物气体中所含的三氧化硫气体加工成三氧化硫,e)通过与热交换介质接触来冷却产物气体,其中相对于所述工艺步骤之一提供热缓冲区,提供产生的热能 在超自热操作期间,在亚热自动加热过程中加热工艺气体。