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    PROCESS FOR THE CONVERSION OF HEAVY FEEDSTOCKS SUCH AS HEAVY CRUDE OILS AND DISTILLATION RESIDUES
    3.
    发明申请
    PROCESS FOR THE CONVERSION OF HEAVY FEEDSTOCKS SUCH AS HEAVY CRUDE OILS AND DISTILLATION RESIDUES 审中-公开
    重原油如重质油和蒸馏残余物转化过程

    公开(公告)号：WO2004056946A3

    公开(公告)日：2004-10-21

    申请号：PCT/EP0314544

    申请日：2003-12-12

    Applicant: ENI SPA ,  SNAM PROGETTI ,  ENITECNOLOGIE SPA ,  MONTANARI ROMOLO ,  MARCHIONNA MARIO ,  PANARITI NICOLETTA ,  DELBIANCO ALBERTO ,  ROSI SERGIO

    Inventor： MONTANARI ROMOLO ,  MARCHIONNA MARIO ,  PANARITI NICOLETTA ,  DELBIANCO ALBERTO ,  ROSI SERGIO

    IPC: C10G20060101 ,  C10G65/12 ,  C10G67/04 ,  C10G67/12 ,  C10G67/16

    CPC classification number: C10G67/12 ,  C10G65/12 ,  C10G67/16 ,  C10G2300/1033 ,  C10G2300/107 ,  C10G2300/1077 ,  C10G2300/205 ,  C10G2300/206 ,  C10G2300/4081 ,  C10G2300/44 ,  C10G2400/02 ,  C10G2400/06

    Abstract: Process for the conversion of heavy feedstocks selected from heavy crude oils, distillation residues, heavy oils coming from catalytic treatment, thermal tars, oil sand bitumens, various kinds of coals and other high-boiling feedstocks of a hydrocarbon origin known as black oils, by the combined use of the following three process units: hydroconversion with catalysts in slurry phase (HT), distillation or flash (D), deasphalting (SDA), comprising the following steps: . mixing at least part of the heavy feedstock and/or at least most of the stream containing asphaltenes obtained in the deasphalting unit with a suitable hydrogenation catalyst and sending the mixture obtained to a hydrotreatment reactor (HT) into which hydrogen or a mixture of hydrogen and H2S is charged; . sending the stream containing the hydrotreatment reaction product and the catalyst in dispersed phase to one or more distillation or flash steps (D) whereby the different fractions coming from the hydrotreatment reaction are separated; . recycling at least part of the distillation residue (tar) or liquid leaving the flash unit, containing the catalyst in dispersed phase, rich in metal sulfides produced by demetallation of the feedstock and possibly coke, to the deasphalting zone (SDA) in the presence of solvents, optionally also fed with at least a fraction of the heavy feedstock, obtaining two streams, one consisting of deasphalted oil (DAO) and the other containing asphaltenes, characterized in that a fraction of the stream containing as phaltenes, coming from the deasphalting section (SDA), called flushing stream, is sent to a treatment section with a suitable solvent for the separation of the product into a solid fraction and a liquid fraction from which said solvent can be subsequently removed.

    Abstract translation: 选自重质原油，蒸馏残渣，来自催化处理的重油，热焦油，油砂沥青，各种煤炭和其他烃源高沸点原料（称为黑油）的重质原料的转化方法， （HT），蒸馏或闪蒸（D），脱沥青（SDA）中的催化剂的加氢转化，其包括以下步骤：。 将至少部分重质原料和/或至少大部分在脱沥青装置中获得的含有沥青质的料流与合适的氢化催化剂混合并将所得混合物送入加氢处理反应器（HT），向其中加入氢气或氢气和 H2S带电; 。 将含有加氢处理反应产物和催化剂的分散相的料流送入一个或多个蒸馏或闪蒸步骤（D），由此分离来自加氢处理反应的不同馏分; 。 在存在以下情况下将至少部分蒸馏残余物（焦油）或离开闪蒸单元的液体循环到脱沥青区（SDA），所述闪蒸单元包含分散相中的催化剂，富含金属硫化物的原料和可能的焦炭脱金属产生的金属硫化物; 溶剂，任选还供给至少一部分重质原料，获得两种物流，一种由脱沥青油（DAO）组成，另一种包含沥青质，其特征在于一部分含有来自脱沥青部分的作为柱苯的物流 （SDA）（称为冲洗流）被送至具有合适溶剂的处理部分，用于将产物分离成固体部分和可随后从中除去所述溶剂的液体部分。

    ENHANCED PROCESS FOR THE SYNTHESIS OF UREA
    5.
    发明申请
    ENHANCED PROCESS FOR THE SYNTHESIS OF UREA 审中-公开
    用于合成尿素的增强方法

    公开(公告)号：WO2008141832A1

    公开(公告)日：2008-11-27

    申请号：PCT/EP2008004119

    申请日：2008-05-19

    Applicant: SNAM PROGETTI ,  CARLESSI LINO ,  GIANAZZA ALESSANDRO

    Inventor： CARLESSI LINO ,  GIANAZZA ALESSANDRO

    IPC: C07C273/04 ,  B01J19/24

    CPC classification number: C07C273/04 ,  B01J2219/00006 ,  B01J2219/0004 ,  Y02P20/582

    Abstract: An enhanced process is described for the synthesis of urea from ammonia and carbon dioxide, at a high pressure and temperature, with the formation of ammonium carbamate as intermediate, which includes a high pressure synthesis section, comprising at least one separation step by decomposition-stripping with ammonia of the non-converted ammonium carbamate, carried out in a vertical apparatus, commonly called stripper, characterized in that said step also comprises a feeding, in the lower part of said stripper, of a stream of CO 2 , heated to a temperature ranging from 130 to 230°C, in a quantity of 1 to 15% by weight with respect to the total weight of the fresh CO 2 fed to the process, containing a passivating agent in such a quantity that its equivalent content of O 2 in moles varies from 0.05% to 0.80% with respect to the moles of CO 2 of said stream.

    Abstract translation: 描述了用于在高压和高温下从氨和二氧化碳合成脲的增强方法，其中形成氨基甲酸铵作为中间体，其包括高压合成段，其包括至少一个通过分解汽提的分离步骤 与未转化的氨基甲酸铵的氨在垂直装置（通常称为汽提器）中进行，其特征在于所述步骤还包括在所述汽提器的下部进料CO 2 2的流， 加热至130-230℃的温度，相对于加入该方法的新鲜CO 2 2的总重量为1至15重量％，其含有 钝化剂的量相当于所述料流的CO 2 CO 2摩尔数，其相对于O 2的摩尔数的摩尔比为0.05％至0.80％。

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