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    • 4. 发明公开
    • PROCÉDÉ D'HYDROTRAITEMENT D'UN GAZOLE DANS DES RÉACTEURS EN SÉRIE AVEC RECYCLAGE D'HYDROGÈNE.
    • VERFAHREN ZUR HYDRODESULFURIERUNG VON DIESELKRAFTSTOFF IN SERIENREAKTOREN MIT WASSERSTOFFREZIRKULATION
    • EP3074485A1
    • 2016-10-05
    • EP14802334.4
    • 2014-11-06
    • IFP Énergies nouvelles
    • BAZER-BACHI, FredericPEREIRA DE OLIVEIRA, LuisDREILLARD, MatthieuLUCQUIN, Anne Claire
    • C10G45/02C10G65/16
    • C10G65/08C10G45/02C10G45/08C10G65/16C10G70/06C10G2300/202C10G2300/207C10G2400/02C10G2400/04
    • The invention relates to a method for hydrotreating a hydrocarbon feedstock comprising sulphur and nitrogen compounds, which comprises the following steps: a) separating the hydrocarbon feedstock into a heavy fraction and a light fraction; b) performing a first hydrotreatment step by placing the heavy fraction and a stream of hydrogen in contact with a first hydrotreatment catalyst Z1 such as to produce a first desulphurised effluent comprising hydrogen, H
      2 S and NH
      3 ; c) separating the first effluent into a first gaseous fraction comprising hydrogen, H
      2 S and NH
      3 , and a first liquid fraction; d) purifying the first gaseous fraction to produce a hydrogen-enriched stream; e) mixing the light fraction with the first liquid fraction obtained in step c) to produce a mixture; f) performing a second hydrotreatment step by placing the mixture obtained in step e) and the hydrogen-enriched stream produced in step d) in contact with a second hydrotreatment catalyst Z2 in order to produce a second desulphurised effluent comprising hydrogen, NH
      3 and H
      2 S; g) separating the second effluent into a second gaseous fraction comprising hydrogen, H
      2 S and NH
      3 and a second liquid fraction; and h) recirculating at least one portion of the second gaseous fraction to step b) as a hydrogen stream.
    • 本发明涉及一种用于加氢处理包含硫和氮化合物的烃原料的方法,其包括以下步骤:a)将烃原料分离成重馏分和轻馏分; b)通过将重馏分和氢气流与第一加氢处理催化剂Z1接触来进行第一加氢处理步骤,以产生包含氢气,H 2 S和NH 3的第一脱硫流出物; c)将第一流出物分离成包含氢气,H 2 S和NH 3的第一气体馏分和第一液体馏分; d)纯化第一气体馏分以产生富氢流; e)将轻馏分与步骤c)中获得的第一液体馏分混合以产生混合物; f)通过将步骤e)中获得的混合物和步骤d)中产生的富氢料流与第二加氢处理催化剂Z2接触来进行第二加氢处理步骤,以产生包含氢气,NH 3和H 2 S的第二脱硫流出物; g)将第二流出物分离成包含氢气,H 2 S和NH 3的第二气体馏分和第二液体馏分; 和h)将第二气态馏分的至少一部分再循环到步骤b)作为氢气流。