摘要:
A process is described for preparing a solution formed by at least one cobalt and/or nickel salt of at least one heteropolyanion combining molybdenum and cobalt or molybdenum and nickel in its structure, said process comprising: a) mixing at least one source of molybdenum and at least one oxidizing compound in aqueous solution to synthesize peroxomolybdate ions at an acidic pH, the (oxidizing compound/molybdenum source) mole ratio being in the range 0.1 to 20; b) introducing at least one cobalt precursor and/or at least one nickel precursor into the solution from step a) to form a solution comprising at least said salt in which the (Co+Ni)/Mo mole ratio is in the range 0.25 to 0.85.
摘要:
A process is described for preparing a solution formed by at least one cobalt and/or nickel salt of at least one heteropolyanion combining molybdenum and cobalt or molybdenum and nickel in its structure, said process comprising: a) mixing at least one source of molybdenum and at least one oxidizing compound in aqueous solution to synthesize peroxomolybdate ions at an acidic pH, the (oxidizing compound/molybdenum source) mole ratio being in the range 0.1 to 20; b) introducing at least one cobalt precursor and/or at least one nickel precursor into the solution from step a) to form a solution comprising at least said salt in which the (Co+Ni)/Mo mole ratio is in the range 0.25 to 0.85.
摘要:
The invention concerns a process for slurry phase hydroconversion of liquid sulphur-containing heavy hydrocarbon feeds, in the presence of hydrogen and in the presence of a solid catalyst, said catalyst being obtained from an aqueous solution formed from at least one cobalt and/or nickel salt of at least one heteropolyanion combining molybdenum and cobalt or molybdenum and nickel in its structure. The aqueous solution is introduced into a hydrocarbon oil containing asphaltenes and/or resins to form an emulsion and said emulsion is then injected upstream or directly into the slurry reactor.
摘要:
A supported and sulphur-containing catalyst is described, comprising; a porous support constituted by an organic-inorganic hybrid material for which the covalent bond between the organic and inorganic phases conforms to the formula M-O—Z—R where M represents at least one metal constituting the inorganic phase, Z at least one heteroelement from among phosphorus and silicon and R an organic fragment, at least one metal of group VIB and/or of group VB and/or of group VIII. The invention also relates to the use of this catalyst for the hydrorefining and the hydroconversion of hydrocarbon-containing feedstocks such as petroleum fractions, fractions from coal or biomass or hydrocarbons produced from natural gas.
摘要:
A supported and sulphur-containing catalyst is described, comprising; a porous support constituted by an organic-inorganic hybrid material for which the covalent bond between the organic and inorganic phases conforms to the formula M-O—Z—R where M represents at least one metal constituting the inorganic phase, Z at least one heteroelement from among phosphorus and silicon and R an organic fragment, at least one metal of group VIB and/or of group VB and/or of group VIII. The invention also relates to the use of this catalyst for the hydrorefining and the hydroconversion of hydrocarbon-containing feedstocks such as petroleum fractions, fractions from coal or biomass or hydrocarbons produced from natural gas.
摘要:
The invention relates to a process for sulfurization of catalysts for hydrotreatment, in particular the catalysts for hydrotreating refractory oxides by sulfurization, in which said catalysts are subjected to a sulfurization stage under a gas atmosphere that contains hydrogen sulfide (H2S), hydrogen (H2), and optionally a cover gas for dilution and in which the H2S/H2 molar ratio is more than 4 and the H2S partial pressure is at least equal to 1 kPa.Said sulfurization stage can be carried out in the hydrotreatment unit (sulfurization in situ) or, prior to the charging of the catalyst, in the hydrotreatment unit (sulfurization ex situ) and is generally carried out at a temperature of less than 600° C., preferably less than 500° C.The invention also relates to the catalysts that are sulfurized by said sulfurization process and their use for hydrorefining and/or hydroconversion/hydrocracking of hydrocarbon feedstocks.
摘要翻译:本发明涉及用于加氢处理的催化剂的硫化方法,特别是用于通过硫化加氢处理难熔氧化物的催化剂,其中所述催化剂在含有硫化氢(H 2 S),氢气(H 2))的气体气氛下进行硫化阶段, ,以及任选的用于稀释的覆盖气体,其中H 2 S / H 2摩尔比大于4,H 2 S分压至少等于1kPa。 所述硫化阶段可以在加氢处理装置(原位硫化)中进行,或者在加入催化剂之前,在加氢处理装置(非原生硫化)中进行,通常在低于600℃的温度下进行。 优选小于500℃。本发明还涉及通过所述硫化方法硫化的催化剂及其用于烃原料的加氢精制和/或加氢转化/加氢裂化的用途。
摘要:
The invention concerns a process for converting heavy feeds carried out in a slurry reactor in the presence of hydrogen and in the presence of a catalyst comprising at least one catalytic metal or a compound of a catalytic metal from group VIB and/or VIII supported on alumina, the pore structure of which is composed of a plurality of juxtaposed agglomerates each formed by a plurality of acicular platelets, the platelets of each agglomerate being generally radially oriented with respect to the others and with respect to the centre of the agglomerate, said catalyst having an irregular and non-spherical shape and being mainly in the form of fragments, obtained using a process including the following steps: a) granulation starting from an active alumina powder having a low crystallinity and/or amorphous structure, to obtain agglomerates in the form of beads; b) maturing in a moist atmosphere between 60° C. and 100° C. then drying said beads; c) sieving to recover a fraction of said beads; d) crushing said fraction; e) calcining at least a portion of said crushed fraction at a temperature in the range 250° C. to 900° C.; f) impregnating with acid and hydrothermal treatment at a temperature in the range 80° C. to 250° C.; g) drying then calcining at a temperature in the range 500° C. to 1100° C. h) depositing at least one catalytic metal or compound of a catalytic metal from group VIB and/or group VIII by impregnation. The process of the invention employs a catalyst with a specific pore texture, shape and granulometry, resulting in improved performances.
摘要:
A process for hydrotreatment of a hydrocarbon feed comprises at least two reaction steps with intermediate fractionation of the effluent from the first step to eliminate unwanted impurities for the catalyst of the second step and to produce a desulphurized light liquid fraction. The intermediate fractionation comprises stripping the liquid effluent from the first step using low pressure hydrogen with rectification of the stripping vapours using a substantially desulphurized liquid reflux. The conditions for said fractionation and for the first hydrotreatment step can produce a substantially desulphurized light liquid fraction which is not supplied to the second step.
摘要:
The invention relates to a process for sulfurization of catalysts for hydrotreatment, in particular the catalysts for hydrotreating refractory oxides by sulfurization, in which said catalysts are subjected to a sulfurization stage under a gas atmosphere that contains hydrogen sulfide (H2S), hydrogen (H2), and optionally a cover gas for dilution and in which the H2S/H2 molar ratio is more than 4 and the H2S partial pressure is at least equal to 1 kPa. Said sulfurization stage can be carried out in the hydrotreatment unit (sulfurization in situ) or, prior to the charging of the catalyst, in the hydrotreatment unit (sulfurization ex situ) and is generally carried out at a temperature of less than 600° C., preferably less than 500° C. The invention also relates to the catalysts that are sulfurized by said sulfurization process and their use for hydrorefining and/or hydroconversion/hydrocracking of hydrocarbon feedstocks.
摘要翻译:本发明涉及用于加氢处理的催化剂的硫化方法,特别是用于通过硫化加氢处理难熔氧化物的催化剂,其中所述催化剂在含有硫化氢的气体气氛下进行硫化阶段(H 2/2) (H 2 S),氢(H 2 H 2),以及任选的用于稀释的覆盖气体,其中H 2 S / H 2 H 2摩尔 比例大于4,H 2 S分压至少等于1kPa。 所述硫化阶段可以在加氢处理装置(原位硫化)中进行,或者在加入催化剂之前,在加氢处理装置(非原生硫化)中进行,通常在低于600℃的温度下进行。 优选小于500℃。本发明还涉及通过所述硫化方法硫化的催化剂及其用于烃原料的加氢精制和/或加氢转化/加氢裂化的用途。
摘要:
The present invention concerns a catalyst for hydrotreating and/or hydroconverting heavy metal-containing hydrocarbon feeds, said catalyst comprising a support in the form of beads based on alumina, at least one catalytic metal or a compound of a catalytic metal from group VIB (column 6 in the new periodic table notation), optionally at least one catalytic metal or compound of a catalytic metal from group VIII (columns 8, 9 and 10 of the new periodic table notation), with a pore structure composed of a plurality of juxtaposed agglomerates, each formed by a plurality of acicular platelets, the platelets of each agglomerate being generally radially orientated with respect to each other and with respect to the center of the agglomerate. The catalyst also comprises at least one doping element selected from the group constituted by phosphorus, boron, silicon (or silica which does not belong to that which could be contained in the selected support) and halogens. The invention also concerns the use of said catalyst in converting metal-containing feeds.