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    • 30. 发明申请
    • PROCESS FOR THE CONVERSION OF HEAVY CHARGES SUCH AS HEAVY CRUDE OILS AND DISTILLATION RESIDUES
    • 重金属转换的过程如重油原油和蒸馏残渣
    • WO2006066911A1
    • 2006-06-29
    • PCT/EP2005/013842
    • 2005-12-19
    • ENI S.P.A.SNAMPROGETTI S.P.A.ENITECNOLOGIE S.P.A.MONTANARI, RomoloMARCHIONNA, MarioROSI, SergioPANARITI, NicolettaDELBIANCO, Alberto
    • MONTANARI, RomoloMARCHIONNA, MarioROSI, SergioPANARITI, NicolettaDELBIANCO, Alberto
    • C10G67/04C10G65/18
    • C10G65/18C10G67/049C10G2300/1033C10G2300/107C10G2300/1077C10G2300/206C10G2300/207C10G2300/4081C10G2300/44C10G2300/706
    • Process for the conversion of heavy charges chosen among heavy and extra heavy crude oils, distillation residues, "heavy oils" coming from catalytic treatments, "thermal tars", bitu­men from oil sands, coals of various nature and other high boiling charges of hydrocarbon origin known as "black oils", by means of the joint use of at least three of the following process units: deasphalting (SDA1), hydroconversion with cata­lysts in slurry phase (HT1), distillation or flash (D), char­acterized by the fact of comprising the following stages: - sending the heavy charge to a deasphalting section (SDA1) in presence of a solvent obtaining two streams: one consisting of Deasphalted Oil (DAO1 from SDA1), the other one containing as­phaltenes; - mixing the flow consisting of deasphalted oil (DAO1 from SDA1) with an appropriate hydrogenation catalyst and sending the thus obtained mixture to a hydroprocessing section (HT1) and introducing into it hydrogen or a mixture containing hydrogen and H2S; - mixing the flow consisting of asphaltenes coming out of the deasphalting section (SDA1) with an appropriate hydrogena­tion catalyst and sending the thus obtained mixture to a second hydroprocessing section (HT2) and introducing into it hydrogen or a mixture containing hydrogen and H2S; - sending both the streams containing the reaction product of the hydroprocessing section (HT1) and the catalyst in the dispersed phase to one or more distillation or flash stages (D9) where the most volatile fractions, including the gases produced in the two hydroprocessing reactions (HT1 and HT2), are separated from the distillation residue (tar) or from the liquid coming out of the flash unit; -sending the distillation residue (tar) or the liquid coming out of the flash unit, containing the catalyst in the dispersed phase rich with metal sulfides, produced because of the demetallization of the charge, and possibly contain­ing coke, to a second deasphalting section (SDA2) in pres­ence of solvents , thus obtaining two streams, one consist­ing of deasphalted oil (DAO2 from SDA2) and the other con­sisting of asphaltenes, a part of which, unless some drain­ing takes place, is recycled to the hydroprocessing section (HT1) and the other part is recycled to the second hydro­processing section (HT2).
    • 将重质和重质原油,蒸馏残渣,来自催化处理的“重油”,“热焦油”,油砂沥青,各种煤和其他高沸点烃类原料 称为“黑油”,通过联合使用以下三种方法单元:脱沥青(SDA1),与浆液相(HT1),蒸馏或闪蒸(D)中的催化剂进行加氢转化,其特征在于: 包括以下阶段: - 在溶剂存在下将沉重的电荷送到脱沥青部分(SDA1),得到两股流:一种由脱沥青油(DAA1,SDA1)组成,另一种含有沥青质; 将由脱沥青油(SDA1)组成的流体与合适的氢化催化剂混合,将由此获得的混合物送入加氢处理部分(HT1)并将氢气或含有氢气和H 2 S的混合物引入其中; 将由脱沥青部分(SDA1)出来的沥青质组成的流体与合适的氢化催化剂混合,将由此获得的混合物送入第二加氢处理段(HT2),并向其中引入氢气或含有氢气和H 2 S的混合物; - 将包含加氢处理部分(HT1)的反应产物和分散相中的催化剂的物流送至一个或多个蒸馏或闪蒸阶段(D9),其中最易挥发的馏分,包括在两个加氢处理反应中产生的气体( HT1和HT2)与蒸馏残渣(焦油)或从闪光单元出来的液体分离; 使蒸馏残余物(焦油)或从闪蒸装置出来的液体含有富含金属硫化物的分散相中的催化剂,由于电荷的脱金属和可能含有焦炭而产生的催化剂到第二脱沥青部分 SDA2),由此获得两条流,一条由脱沥青油(DAA2来自SDA2)和另一个由沥青质组成,其中一部分除非发生排水外,还被循环到加氢处理部分(HT1)和 另一部分被再循环到第二加氢处理部分(HT2)。