PROCESS FOR THE CONVERSION OF HEAVY FEEDSTOCKS SUCH AS HEAVY CRUDE OILS AND DISTILLATION RESIDUES
    131.
    发明申请
    PROCESS FOR THE CONVERSION OF HEAVY FEEDSTOCKS SUCH AS HEAVY CRUDE OILS AND DISTILLATION RESIDUES 审中-公开
    重型饲料转化过程如重油原油和蒸馏残留物

    公开(公告)号:WO2004056946A2

    公开(公告)日:2004-07-08

    申请号:PCT/EP2003/014544

    申请日:2003-12-12

    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 H 2 S 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: 将重质原油,蒸馏残渣,来自催化处理的重油,热焦油,油砂沥青,各种煤以及其他来源于黑油的高沸点原料转化成重质原料的方法,通过 组合使用以下三个工艺单元:与浆料相(HT),蒸馏或闪蒸(D),脱沥青(SDA)中的催化剂进行加氢转化,包括以下步骤。 将脱沥青单元中获得的至少部分重质原料和/或至少大部分含有沥青质的料流与合适的氢化催化剂混合,并将得到的混合物送入加氢处理反应器(HT),氢气或氢气与 H2S充电; 。 将含有加氢处理反应产物和分散相的催化剂的物流送至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; 。 回收至少部分蒸馏残余物(焦油)或离开闪蒸单元的液体,其含有分散相中的催化剂,富含金属硫化物,其通过原料脱金属和可能的焦化而在脱沥青区(SDA)存在下 溶剂,任选地还加入至少一部分重质原料,获得两股流,一条由脱沥青油(DAO)组成,另一条含有沥青质,其特征在于,含有来自脱沥青部分 (SDA),称为冲洗流,被送入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其中除去所述溶剂的液体部分。

    PROCESS FOR PREPARING ALKYL-TERT-BUTYL ETHERS
    133.
    发明申请
    PROCESS FOR PREPARING ALKYL-TERT-BUTYL ETHERS 审中-公开
    制备烷基叔丁基醚的方法

    公开(公告)号:WO1987007259A1

    公开(公告)日:1987-12-03

    申请号:PCT/EP1987000241

    申请日:1987-05-07

    CPC classification number: C07C41/06 C07C43/046

    Abstract: In the processes for the synthesis of alkyl-tert-butyl ethers by reacting the isobutene contained in a C4 charge with a high butadiene content with aliphatic alcohols, to the purpose of preventing polymerization phenomena in the step of separation of alkyl-tert-butyl ether product from the other unreacted components, the initial C4 charge and/or the aliphatic alcohol are submitted to an oxygen removal step, to the purpose of removing all of dissolved free oxygen, down to a maximum residual content of 1-2 ppm.

    Abstract translation: 在通过使C4电荷中所含的异丁烯与高级丁二烯含量与脂族醇反应来合成烷基叔丁基醚的方法中,为了防止分离烷基叔丁基醚的步骤中的聚合现象 将来自其它未反应组分的产物,初始C4电荷和/或脂族醇进行除氧步骤,以除去所有溶解的游离氧,达到1-2ppm的最大残留量。

    135.
    发明专利
    未知

    公开(公告)号:ES2033418T3

    公开(公告)日:1993-03-16

    申请号:ES88201522

    申请日:1988-07-15

    Abstract: Process for the psychrophile biological purification of waste waters with medium-low concentrations of polluting substances, consisting in a first anaerobic treatment with an expanded mud bed of U.A.S.B. type at a low flow rate, in a second, fluid-bed treatment on a fine support at a high flow rate, and in an end, aerobic treatment for the nitrification and the end oxydation of the various substances reduced in the previous treatments, then recycled to the upstream steps for the removal of possible nutrients, such as nitrogen and phosphorus.

    140.
    发明专利
    未知

    公开(公告)号:DE3133764C2

    公开(公告)日:1987-02-12

    申请号:DE3133764

    申请日:1981-08-26

    Abstract: An improved process is disclosed for preparing gases containing hydrogen and nitrogen and which is especially suitable for the synthesis of ammonia. Using natural gas or virgin naphtha as the starting materials, the reforming reaction with steam takes place in two serially arranged stages, the first of which occurs at an inlet temperature of from 400 DEG C. to 650 DEG C. and an exit temperature of from 650 DEG C. to 750 DEG C., a conversion of from 20% to 50% being effected, the second stage working at an exit temperature of from 750 DEG C. to 850 DEG C. and the conversion being increased up to 70%. Air reforming is carried out under conditions at which the exit temperature of the gas is between 920 DEG C. and 1050 DEG C. and the sensible heat of the effluent gases from the air reforming at such temperature condition is employed to activate the second steam reforming stage. Tube bundle heat-exchangers, the tubes of which are filled with an appropriate catalyst, are used.

Patent Agency Ranking