PROCESS FOR THE REMOVAL OF CO2 FROM ACID GAS

    公开(公告)号:WO2014054945A3

    公开(公告)日:2014-04-10

    申请号:PCT/NL2013/050698

    申请日:2013-10-01

    Abstract: The invention relates to a process for the removal of CO 2 from acid gas by cryogenic distillation performed in two steps. The feed mixture is first distilled at high pressure (at least 45 bar) in a first distillation column. The top product or a part thereof is then, after heating, subjected to a second distillation step at a lower pressure (lower than 45 bar). The top product of the second distillation step is methane of high purity (more than 99 mol.%). The bottom product of the second distillation step is recycled back to the first distillation column. The method according to the invention allows complete separation of methane also at higher level of acidic components, is economical and does not result in solid CO 2 build-up, which is a common problem in cryogenic distillation.

    REACTOR SYSTEM FOR POLYESTER PRE-CONDENSATION

    公开(公告)号:WO2013002643A3

    公开(公告)日:2013-01-03

    申请号:PCT/NL2012/050464

    申请日:2012-06-29

    Inventor: FACCHI, Edoardo

    Abstract: Disclosed is a reactor system for the production of polyester pre-condensate. The system comprises at least two reaction zones, operating at substantially different pressure. Reactants fed into the first zone are allowed to initially react and are then allowed to enter a second zone by means of pressure flow. In the second zone, a system of concentric spacers is present so as to ensure a sufficient path length of the reaction mixture to form a pre-condensate, as well as in internal heat exchanger. The pre-condensate is allowed to flow to a next (polymerization) stage by means of gravity flow on account of a standpipe present in the second reaction zone. Said standpipe has an inlet above the internal heating system in the second reaction zone.

    METHOD FOR HYDROGEN PRODUCTION
    7.
    发明申请
    METHOD FOR HYDROGEN PRODUCTION 审中-公开
    氢生产方法

    公开(公告)号:WO2012096572A1

    公开(公告)日:2012-07-19

    申请号:PCT/NL2012/050007

    申请日:2012-01-05

    Abstract: The invention relates to the production of hydrogen by steam reforming comprising the steps of (i) providing a fossil fuel, preferably methane, and steam, (ii) conducting a steam reforming reaction between the fossil fuel and the steam under heating, wherein a reaction mixture is formed comprising hydrogen and carbon dioxide, (iii) separating hydrogen from the reaction mixture by membrane separation, wherein a permeate is formed comprising hydrogen and a retentate comprising carbon dioxide, (iv) purifying carbon dioxide from the retentate, and (v) using said carbon dioxide as a heat exchange medium to supply heat at least for the steam reforming reaction (ii). The method of the invention can also be used for the production of pressurised carbon dioxide characterised by a high purity. Further, the invention relates to a system for hydrogen production and to the use of pressurised carbon dioxide as heat exchange medium.

    Abstract translation: 本发明涉及通过蒸汽重整生产氢,其包括以下步骤:(i)提供化石燃料,优选甲烷和蒸汽,(ii)在加热下在化石燃料和蒸汽之间进行蒸汽重整反应,其中反应 形成包含氢气和二氧化碳的混合物,(iii)通过膜分离从反应混合物中分离氢,其中形成包含氢气和包含二氧化碳的渗余物的渗透物,(iv)从渗余物中提纯二氧化碳,和(v) 使用所述二氧化碳作为热交换介质至少为蒸汽重整反应(ii)供应热量。 本发明的方法也可用于生产特征为高纯度的加压二氧化碳。 此外,本发明涉及一种用于制氢和使用加压二氧化碳作为热交换介质的系统。

    METHOD FOR REVAMPING A UREA PRODUCTION COMPLEX
    8.
    发明申请
    METHOD FOR REVAMPING A UREA PRODUCTION COMPLEX 审中-公开
    尿素生产复合体的方法

    公开(公告)号:WO2016010416A1

    公开(公告)日:2016-01-21

    申请号:PCT/NL2015/050262

    申请日:2015-04-21

    Abstract: The present invention provides a method for increasing the capacity of a urea production complex, the method comprising a step of adding to an existing urea production complex a CO 2 production unit, which unit employs a CO 2 production method comprising: i) subjecting a hydrocarbon feed to short contact time catalytic partial oxidation (SCT- CPO) to produce a first gas mixture comprising H 2 , CO and CO 2 , ii) subjecting said first gas mixture to a water gas shift reaction yielding a second gas mixture, iii) separating CO 2 from said second gas mixture yielding a purified CO 2 stream and a hydrogen containing stream and subsequently iv) reacting said purified CO 2 stream with ammonia from the ammonia production unit to produce urea. The invention also provides a urea production complex realized by the application of this method and a urea production method.

    Abstract translation: 本发明提供了一种增加尿素生产复合物的能力的方法,该方法包括向现有的尿素生产复合体中加入二氧化碳生产单元的步骤,该单元采用二氧化碳生产方法,该方法包括:i)使烃进料 短接触时间催化部分氧化(SCT-CPO)以产生包含H 2,CO和CO 2的第一气体混合物,ii)使所述第一气体混合物经受产生第二气体混合物的水煤气变换反应,iii)将CO 2从所述第二气体分离 气体混合物产生纯化的CO 2流和含氢气流,随后iv)使所述纯化的CO 2流与来自氨生产单元的氨反应以产生尿素。 本发明还提供了通过应用该方法和尿素生产方法实现的尿素生产复合体。

    SOLAR THERMAL ENERGY STORAGE SYSTEM
    9.
    发明申请
    SOLAR THERMAL ENERGY STORAGE SYSTEM 审中-公开
    太阳能热能储存系统

    公开(公告)号:WO2014193224A2

    公开(公告)日:2014-12-04

    申请号:PCT/NL2014/050333

    申请日:2014-05-27

    CPC classification number: F03G6/065 F03G6/067 F24S60/00 Y02E10/46

    Abstract: Disclosed is a thermal energy storage system for storing collected solar thermal energy. The system comprises a solar thermal energy collection facility in the form of a field of parabolic troughs, which is in thermal communication with a molten salt circuit. The molten salt circuit is in fluid communication with a molten salt storage facility comprising at least three storage tanks that are each in fluid communication with the molten salt circuit. The multiple tanks set-up allows using cheaper materials, and a more efficient storage of thermal energy.

    Abstract translation: 公开了一种用于存储收集的太阳能热能的热能存储系统。 该系统包括与熔盐电路热连通的抛物槽区域形式的太阳能热能收集设备。 熔融盐电路与包括至少三个储存罐的熔融盐储存设备流体连通,每个储罐与熔盐回路流体连通。 多个坦克设置允许使用更便宜的材料,并且更有效地储存热能。

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