METHOD FOR PRODUCING PROPENE FROM PROPANE
    1.
    发明申请
    METHOD FOR PRODUCING PROPENE FROM PROPANE 审中-公开
    用于生产丙烯丙烷

    公开(公告)号:WO2007113085A3

    公开(公告)日:2008-03-13

    申请号:PCT/EP2007052354

    申请日:2007-03-13

    CPC classification number: C07C5/333 C07C7/12 C07C7/13 C07C11/06

    Abstract: The invention relates to a method for producing propene from propane. Said method comprises the following steps: A) a feed gas stream (a) containing propane is prepared; B) the feed gas stream (a) containing propane, is introduced with optionally water vapour and optionally, an oxygen-containing gas stream into a dehydrogenation zone and then the propane is dehydrogenated to form propene, and a product gas stream (b) containing propane, propene, methane, ethane, ethene, hydrogen, optionally carbon monoxide, carbon dioxide, water vapour and oxygen, is obtained; C) the product gas stream (b) is cooled, optionally compressed and then water vapour is separated by condensation and a product gas stream (c) depleted in water vapour is obtained; D) the product gas stream (c) is brought into contact with a selectively active adsorber which selectively adsorbs propene in the selected adsorption conditions, and an adsorber charged with propene and a gas stream (d2) depleted in propene and containing propane, methane, ethane, ethene and hydrogen, carbon monoxide and carbon dioxide are obtained; E) a gas stream (e1) containing propene is released from the adsorber charged with propene by reducing the pressure and/or heat of the adsorber.

    Abstract translation: 本发明涉及用于由丙烷制备丙烯的方法,包括步骤:A)(a)中,提供了一种含丙烷的原料气流; B)包含(a),任选的蒸汽和任选的含氧气体流中的丙烷进料气流被送入脱氢区和丙烷经受脱氢成丙烯,得到产物气流b包括丙烷,丙烯,甲烷,乙烷,乙烯,氢气,任选的一氧化碳 ,二氧化碳,获得水蒸汽和氧气; C)的产物气流(B)被冷却,冷凝,任选地,这将允许水蒸气通过冷凝分离,得到一个蒸汽贫化产物气流(获得的C); D)的产物气流(c)的具有选择性作用的吸附剂选择性吸附所选择的吸附条件下丙烯,与一个装有丙烯吸附剂和贫丙烯气流(D2)的包含丙烷,甲烷,乙烷,乙烯接触接触 和氢,得到一氧化碳和二氧化碳; E)从载有丙烯吸附剂通过减压和/或吸附剂的加热,气体流包含丙烯(E1)释放。

    METHOD FOR DRYING AND PRODUCING MICROPOROUS PARTICLES AND A DRYING DEVICE
    3.
    发明申请
    METHOD FOR DRYING AND PRODUCING MICROPOROUS PARTICLES AND A DRYING DEVICE 审中-公开
    工艺干燥和制备微孔颗粒和干燥设备

    公开(公告)号:WO9946203A3

    公开(公告)日:2000-04-06

    申请号:PCT/EP9901591

    申请日:1999-03-11

    CPC classification number: F26B7/00

    Abstract: The invention relates to a method for drying microporous particles containing fluid in which the heat required for increasing the temperature is supplied by means of convection by reducing the interfacial tension of the fluid, preferably to 0 to 1/10, especially to 0 to 1/20, pertaining to the interfacial tension of the fluid at room temperature, by correspondingly increasing the temperature when the pressure of the fluid is at a near-critical to supercritical level. The invention also relates to a method for producing microporous, spatially cross-linked particles in which said drying method is applied. In addition, the invention relates to a device for carrying out the drying method. The device comprises a pressure vessel having an inner vessel and a pressure-carrying outer vessel. Said device also comprises suited measuring and regulating devices as well as pumping and heat exchange devices, whereby the inner vessel is provided for accommodating the particles which are to be dried. A gap is provided between the inner and outer vessels.

    Abstract translation: 在用于干燥的微孔的方法,通过在室温下降低流体的界面张力,优选为0至1/10,特别是0至1/20,本粒子含有流体的,所述流体在界面张力由温度近 bisüberkritischem根据对流提供给用于温度上升所需要的热量增加的流体的压力。 此外,本发明涉及一种在其中采用这种干燥过程微孔,三维网络颗粒的制备。 此外,本发明包括用于进行所述干燥处理的装置,该装置包括一压力容器与内部容器和drucktragendem外容器和合适的测量和控制装置和泵和热交换装置,其中,所述内部容器被设置用于保持所述颗粒被干燥,并且内之间 - 外容器和一个间隙设置。

    4.
    发明专利
    未知

    公开(公告)号:DK1062181T3

    公开(公告)日:2004-08-16

    申请号:DK99915573

    申请日:1999-03-11

    Applicant: BASF AG

    Abstract: In a process for drying microporous, fluid-containing particles, the heat required for increasing the temperature is supplied by convection by reducing the interfacial tension of the fluid, preferably to 0 to 1/10, in particular to 0 to 1/20, of the interfacial tension of the fluid at room temperature, by appropriately increasing the temperature at from close to the critical pressure to supercritical pressure of the fluid. Furthermore, microporous, three-dimensionally networked particles are prepared by a process in which the drying process is used. In addition, an apparatus is used for carrying out the drying process, the apparatus comprising a pressure container having an inner container and pressure-withstanding outer container and suitable measuring and control apparatuses and pump apparatuses and heat exchangers, the inner container being provided for holding the particles to be dried and a gap being provided between the inner container and the outer container.

    5.
    发明专利
    未知

    公开(公告)号:DK0716641T3

    公开(公告)日:1998-02-09

    申请号:DK94926888

    申请日:1994-08-25

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP94/02822 Sec. 371 Date Feb. 29, 1996 Sec. 102(e) Date Feb. 29, 1996 PCT Filed Aug. 25, 1994 PCT Pub. No. WO95/06617 PCT Pub. Date Mar. 9, 1995Hydrophobic silica aerogels obtainable by reacting a waterglass solution with an acid at a pH of from 7.5 to 11, substantially removing ionic constituents from the resulting silica hydrogels by washing with water or dilute aqueous solutions of inorganic bases, while the pH of the hydrogels is kept in the range from 7.5 to 11, displacing the aqueous phase contained in the hydrogel by an alcohol, and subsequent supercritical drying of the resulting alcogels.

    6.
    发明专利
    未知

    公开(公告)号:AT268310T

    公开(公告)日:2004-06-15

    申请号:AT99915573

    申请日:1999-03-11

    Applicant: BASF AG

    Abstract: In a process for drying microporous, fluid-containing particles, the heat required for increasing the temperature is supplied by convection by reducing the interfacial tension of the fluid, preferably to 0 to 1/10, in particular to 0 to 1/20, of the interfacial tension of the fluid at room temperature, by appropriately increasing the temperature at from close to the critical pressure to supercritical pressure of the fluid. Furthermore, microporous, three-dimensionally networked particles are prepared by a process in which the drying process is used. In addition, an apparatus is used for carrying out the drying process, the apparatus comprising a pressure container having an inner container and pressure-withstanding outer container and suitable measuring and control apparatuses and pump apparatuses and heat exchangers, the inner container being provided for holding the particles to be dried and a gap being provided between the inner container and the outer container.

    Process for drying microporous particles used in production of thermal insulating materials

    公开(公告)号:DE19810564A1

    公开(公告)日:1999-09-16

    申请号:DE19810564

    申请日:1998-03-11

    Applicant: BASF AG

    Abstract: In a process for drying microporous particles the heat necessary for raising the temperature is added convectively. Process for drying microporous particles containing fluid comprises reducing the boundary voltage of the fluid preferably to 0-1/10, especially 0-1/20 of the surface voltage of the fluid at room temperature until the temperature is raised corresponding to the sub-critical or close to critical pressure of the fluid. The heat necessary for raising the temperature is added convectively. Independent claims are also included for: (A) a process for producing microporous crosslinked particles comprising: (a) forming particles containing microporous pore fluid; (b) optionally washing and/or desalting the particles using solvent and/or water; (c) optionally partially or completely exchanging the pore fluid, solvent or water in the particles forming particles containing microporous fluid; (d) drying the particles and (e) optionally removing sorbed gases and/or materials of the dried particles; (B) an apparatus for carrying out the drying process comprising a pressure vessel with an inner vessel (1) and an outer vessel (2) as well as measuring and regulating devices and pumps and heat exchangers.

Patent Agency Ranking