摘要:
In general, methods of hydroprocessing a hydrocarbonaceous feed stock are provided that do not use a costly recycle gas compressor, but are still able to use the more efficient reaction systems provided in a substantially three-phase hydroprocessing zone. The method combines a substantially liquid-phase hydroprocessing zone with the substantially three-phase hydroprocessing zone in a manner so that the hydrogen requirements for both reaction zones can be provided from an external source thereto without the use of a hydrogen recycle or recycle gas compressor to the substantially three-phase reaction zone.
摘要:
In general, methods of hydroprocessing a hydrocarbonaceous feed stock are provided that do not use a costly recycle gas compressor, but are still able to use the more efficient reaction systems provided in a substantially three-phase hydroprocessing zone. The method combines a substantially liquid-phase hydroprocessing zone with the substantially three-phase hydroprocessing zone in a manner so that the hydrogen requirements for both reaction zones can be provided from an external source thereto without the use of a hydrogen recycle or recycle gas compressor to the substantially three-phase reaction zone.
摘要:
A method of hydroprocessing hydrocarbons is provided using a substantially liquid-phase reactor having first and second catalyst beds with a heat transfer section positioned therebetween. The first and second catalyst beds and the heat transfer section are combined within the same reactor vessel. Each catalyst bed having an inlet temperature and an exit temperature and having a hydroprocessing catalyst therein with a maximum operating temperature range. The method hydroprocesses the hydrocarbons and removes sufficient heat from the hydrocarbons using the heat transfer section so that the exit temperature of the hydrocarbons existing the first catalyst bed is substantially maintained below the maximum operating temperature range of the hydroprocessing catalysts in the first bed and, at the same time, also providing the hydrocarbons to the second catalyst bed at the inlet temperature so that the exit temperature of the hydrocarbons at the exit of the second catalyst bed also does not exceed the maximum operating temperature range of the hydroprocessing catalyst in the second bed.
摘要:
A method of hydroprocessing hydrocarbons is provided using a substantially liquid-phase reactor having first and second catalyst beds with a heat transfer section positioned therebetween. The first and second catalyst beds and the heat transfer section are combined within the same reactor vessel. Each catalyst bed having an inlet temperature and an exit temperature and having a hydroprocessing catalyst therein with a maximum operating temperature range. The method hydroprocesses the hydrocarbons and removes sufficient heat from the hydrocarbons using the heat transfer section so that the exit temperature of the hydrocarbons existing the first catalyst bed is substantially maintained below the maximum operating temperature range of the hydroprocessing catalysts in the first bed and, at the same time, also providing the hydrocarbons to the second catalyst bed at the inlet temperature so that the exit temperature of the hydrocarbons at the exit of the second catalyst bed also does not exceed the maximum operating temperature range of the hydroprocessing catalyst in the second bed.
摘要:
Methods and systems of processing a hydrocarbonaceous feed stock flows are provided. In one aspect, the method includes providing two or more hydroprocessing stages disposed in sequence, each hydroprocessing stage having a hydroprocessing reaction zone with a hydrogen requirement and each stage in fluid communication with the preceding stage. A hydrogen source is provided substantially free of hydrogen from a hydrogen recycle compressor. The hydrocarbonaceous feed stock flow is separated into an portions of fresh feed for each hydroprocessing stage, and then supplying the first portion of fresh feed with hydrogen from the hydrogen source in an amount satisfying substantially all of the hydrogen requirements of the hydroprocessing stages to a first hydroprocessing zone.
摘要:
A method of hydroprocessing hydrocarbons is provided using a substantially liquid-phase reactor having first and second catalyst beds with a heat transfer section positioned therebetween. The first and second catalyst beds and the heat transfer section are combined within the same reactor vessel. Each catalyst bed having an inlet temperature and an exit temperature and having a hydroprocessing catalyst therein with a maximum operating temperature range. The method hydroprocesses the hydrocarbons and removes sufficient heat from the hydrocarbons using the heat transfer section so that the exit temperature of the hydrocarbons existing the first catalyst bed is substantially maintained below the maximum operating temperature range of the hydroprocessing catalysts in the first bed and, at the same time, also providing the hydrocarbons to the second catalyst bed at the inlet temperature so that the exit temperature of the hydrocarbons at the exit of the second catalyst bed also does not exceed the maximum operating temperature range of the hydroprocessing catalyst in the second bed.
摘要:
Methods and systems of processing a hydrocarbonaceous feed stock flows are provided. In one aspect, the method includes providing two or more hydroprocessing stages disposed in sequence, each hydroprocessing stage having a hydroprocessing reaction zone with a hydrogen requirement and each stage in fluid communication with the preceding stage. A hydrogen source is provided substantially free of hydrogen from a hydrogen recycle compressor. The hydrocarbonaceous feed stock flow is separated into an portions of fresh feed for each hydroprocessing stage, and then supplying the first portion of fresh feed with hydrogen from the hydrogen source in an amount satisfying substantially all of the hydrogen requirements of the hydroprocessing stages to a first hydroprocessing zone.
摘要:
The invention relates to a hydrocarbon composition, which can be used as a fuel and/or fuel oil, containing a petroleum component (A) and a component of a biological origin (B), wherein the component of a biological origin is present in a quantity of up to 75% by volume with respect to the total composition. Said component of a biological origin (B) is prepared starting from a mix of a biological origin (C) containing esters of fatty acids, with possible aliquots of free fatty acids, by means of a process which comprises the following steps: 1) hydrodeoxygenation of the mix of a biological origin; 2) hydroisomerization of the mix resulting from step (1), after possible water and gas flow separation, wherein said hydroisomerization is preferably carried out in the presence of a catalytic system comprising: a) a carrier of an acidic nature, comprising a completely amorphous micro-mesoporous silica-alumina, with a SiO2/Al2O3 molar ratio ranging from 30 to 500, a surface area larger than 500 m2/g, a pore volume ranging from 0.3 to 1.3 ml/g, an average pore diameter smaller than 40 A, b) a metal component containing one or more metals of group VIII, possibly mixed with one or more metals of group VIB.
摘要翻译:本发明涉及一种烃组合物,其可用作燃料和/或燃料油,其含有石油成分(A)和生物来源的组分(B),其中生物来源的组分存在于 相对于组合物的总量可达75%。 生物来源(B)的所述组分由含有脂肪酸酯的生物来源(C)与可能的游离脂肪酸等分试样的混合物通过包括以下步骤的方法制备:1)加氢脱氧 的生物来源的组合; 2)在可能的水和气体流分离之后,由步骤(1)得到的混合物的加氢异构化,其中所述加氢异构化优选在催化体系存在下进行,所述催化体系包括:a)酸性载体,其包含完全无定形的 微孔介孔二氧化硅 - 氧化铝,SiO 2 / Al 2 O 3摩尔比为30-500,表面积大于500m2 / g,孔体积为0.3-1.3ml / g,平均孔径小于40A ,b)含有一种或多种VIII族金属的金属组分,可能与VIB族的一种或多种金属混合。