66results about How to "Ideal comprehensive processing effect" patented technology

The invention discloses a hydrogenation combined method for diesel oil, which comprises the following steps: dividing a straight-run diesel oil raw material and/or a coking diesel oil raw material into two parts of materials, performing hydro-upgrading reaction on one part of the material after being mixed with a catalytically cracked diesel oil raw material, and performing hydro-refining reaction on the other part of the material. The hydro-refining reaction and the hydro-upgrading reaction share a set of hydrogen recycling system. The combined method of the invention meets the requirement of products with different amounts and quality by flexibly adjusting raw oil ratio of two reaction zones, reduces operating severity of a hydro-upgrading reaction zone and prolongs the operation cycle at the same time. In addition, the method of the invention simplifies the process flow, can decrease equipment and reduces investment and operation cost. The method is suitable for hydro-processes of various inferior-quality distillate raw materials.

The invention discloses a hydroprocessing and desulfurizing integration method, in particular a wax oil hydroprocessing and diesel hydrorefining integration process method. The method comprises the following steps: raw wax oil passes through a first reaction zone in the presence of hydrogen first, liquid obtained after separation of products is taken as catalytic cracking raw materia; hydrogen-containing gas and gas phase of light liquid obtained after separation are mixed with diesel raw material to enter a second reaction zone; and gas after separation of products in the second reaction zone is recycled after desulfurization, and liquid obtained after separation is subjected to fractionation to obtain hydrogenant naphtha and hydrogenant diesel. The method aims at technical characteristics of wax oil hydroprocessing and hydrorefining, integrates the two technologies for application, simplifies process flow, simplifies the process flow at the same time of meeting the same product requirements, and reduces equipment, investment and operating cost. The method is applied to newly built equipment to reduce equipment investment and applied to expanding reformation of the prior devices.

The invention discloses a combined hydrogenation process method, in particular a combined hydrogenation process method for wax oil hydroprocessing, poor ignition quality fuel hydroupgrading and diesel hydrorefining. The method comprises the following steps: raw wax oil passes through a first reaction zone in the presence of hydrogen first, liquid after separation of products is taken as catalyticcracking raw material; the gas phase obtained through separation is mixed with poor ignition quality fuel raw material to enter a second reaction zone for hydroupgrading reaction; products in the second reaction zone are mixed with other diesel raw materials to enter a third reaction zone for hydrorefining reaction; and gas after separation of products in the third reaction zone is recycled afterdesulfurization, and liquid obtained after separation is subjected to steam stripping to obtain hydrogenant naphtha and hydrogenant diesel. The method aims at technical characteristics of wax oil hydroprocessing, poor ignition quality fuel hydroupgrading and diesel hydrorefining, integrates the three technologies organically, simplifies process flow at the same time of meeting the same product requirements, and reduces equipment, investment and operating cost.

The invention discloses a hydrogenation combination process for producing high-quality white oil. The process comprises the following steps: (1) mixing a poor diesel raw material with hydrogen under the hydro-upgrading process condition, and enabling a mixture to pass through a hydro-upgrading reaction region with a hydro-upgrading catalyst bed layer; (2) feeding a reaction effluent obtained in the step (1) into a hydro-refining reaction region for hydro-refining; (3) performing gas-liquid separation on a reaction effluent obtained in the step (2), and feeding an obtained liquid product into an aromatic extraction device for aromatic separation to obtain an aromatic component and a non-aromatic raffinate oil component, wherein the aromatic component can enter a catalytic cracking unit or a BTX aromatic unit, and the non-aromatic raffinate oil component is the high-quality white oil. The non-aromatic raffinate oil obtained by the process is the high-quality white oil which is sulfur-free and aromatic-free and has the pour point of lower than 0 DEG C and the Saybolt color value of more than +20; due to the adoption of the process, the poor diesel can be converted into a high-added-value white oil product to the maximum extent, the application range of the poor diesel is extended, and the economic benefit of the processed poor diesel is increased.

The invention discloses a hydroprocessing and upgrading integration method, in particular a wax oil hydroprocessing and diesel hydroupgrading integration process. The method comprises the following steps: raw wax oil passes through a first reaction zone in the presence of hydrogen first, liquid obtained after separation of products is taken as catalytic cracking raw materia; the gas phase obtained through separation is mixed with diesel raw material to enter a second reaction zone; and gas after separation of products in the second reaction zone is recycled after desulfurization, and liquid obtained after separation is subjected to fractionation to obtain hydrogenant naphtha and hydrogenant diesel. The method aims at technical characteristics of wax oil hydroprocessing and hydroupgrading,integrates the two technologies for application, simplifies process flow, and reduces equipment, investment and operating cost at the same time of reaching high product quality. The method is appliedto newly built equipment to reduce equipment investment and applied to expanding reformation of the prior devices.

A method of hydrocracking is disclosed. The method does not need any transformation on a hydrocracking device and only utilizes present procedures of the device. Passivation gas containing ammonia gas is injected into a catalyst bed layer through an inlet of a hydrocracking reactor to reduce reaction activity, the reaction temperature of a cracking catalyst is increased under the premise of not greatly changing product distribution, and the temperature of an outlet of a refining reactor and the temperature of an inlet of the cracking reactor are matched reasonably to the utmost. The method improves operation safety, flexibility and emergency incident responding capability of the device, avoids overtemperature, and reduces energy consumption of the device to a certain degree.

The invention discloses a method for producing gasoline and base oil by a catalyst grading technology. The method comprises the following steps: a) under a hydrofining condition, mixing a heavy oil raw material with hydrogen, and allowing the mixture to flow through a reaction zone containing a hydrofining catalyst bed layer to perform a restrictive hydrofining reaction; b) allowing the reaction effluent obtained in the step a) to flow through a reaction zone containing a graded wax oil hydro-conversion catalyst bed layer to perform a hydro-conversion reaction under hydro-conversion process conditions; and allowing the reaction effluent to flow through a reaction zone containing a wax oil hydrocracking catalyst bed layer to perform a hydrocracking reaction under hydrocracking process conditions; and c) carrying out gas-liquid separation, fractionation and other processes on the reaction effluent obtained in the step b) to obtain converted gasoline, converted diesel oil and unconvertedoil. The method provided by the invention can convert heavy distillate oil into gasoline and base oil, and provides an economically feasible route for processing of inferior raw materials and production of gasoline and base oil.

The invention discloses a processing method of catalytic diesel. Raw materials of the catalytic diesel are cut into light components and heavy components; the light components are subjected to a conversion reaction in a bed layer containing a light aromatic hydrocarbon hydro-conversion catalyst, and converted gasoline and converted diesel are obtained; the heavy components are subjected to a contact reaction with a heavy aromatic hydrocarbon hydro-conversion catalyst, and converted gasoline and diesel fractions are obtained; the diesel fractions obtained through conversion of heavy componentsare subjected to a contact reaction with a heavy aromatic hydrocarbon hydro-conversion catalyst, a reaction effluent is then subjected to a contact reaction with a light component hydro-conversion catalyst; the converted gasoline obtained from each part is mixed, and high-quality gasoline is obtained. Through the reasonable separation and processing process, different types of raw materials can beselectively and independently processed, so that the qualified gasoline product with high octane value can be produced through reasonable utilization of inferior catalytically cracked diesel.

The invention discloses a processing method of catalytic diesel oil. A catalytic diesel oil material is cut into a light component and a heavy component; the light component is subjected to hydrofining and hydroupgrading reactions and gasoline and diesel oil components are obtained; the obtained heavy component is subjected to hydrofining and hydroconversion, and a gasoline component and a dieseloil component are obtained; a gasoline product is obtained after the two parts of gasoline are mixed, and a diesel oil product is obtained after the two parts of diesel oil components are mixed. Through reasonable separation and processing processes, different types of raw materials can be selectively and independently processed, so that qualified gasoline and diesel oil products can be produced by reasonably utilizing inferior catalytic cracking diesel oil .

The invention discloses a processing method of Fischer-Tropsch synthetic oil. Fischer-Tropsch synthetic oil is used as a raw material, and a two-stage hydrogenation process of hydrofining-hydro-upgrading-isodewaxing is adopted to produce API III <+> lubricating oil base oil. Generated oil obtained through separation of a hydrofining-hydro-upgrading reaction effluent enters an isodewaxing reactionzone, and different types of API III <+> lubricating oil base oil products are obtained through separation and fractionation of an isodewaxing reaction effluent. The method has the advantages of simple process flow and wide raw material adaptability, and can be suitable for the process of producing special oil products with good stability by Fischer-Tropsch synthetic oil fraction hydrogenation.

The invention discloses a processing method of Fischer-Tropsch synthetic oil. Fischer-Tropsch synthetic oil is used as a raw material, and a two-stage hydrogenation process of hydrofining-hydro-upgrading-isodewaxing is adopted to produce API III <+> lubricating oil base oil. Heavy distillate oil generated oil obtained through hydrofining-hydro-upgrading reaction effluent separation enters an isodewaxing reaction zone, and an isodewaxing reaction effluent is subjected to separation and fractionation to obtain different types of API III <+> lubricating oil base oil products. The method has the advantages of simple process flow and wide raw material adaptability, and can be suitable for the process of producing special oil products with good stability by Fischer-Tropsch synthetic oil fractionhydrogenation.

The invention discloses a method for producing gasoline by a catalyst grading technology. The method comprises the following steps: carrying out restricted hydrogenation saturation on a conventional heavy raw material; then performing hydro-conversion to produce high-quality gasoline or blend components under certain limited process conditions and a specific catalyst grading condition; and subjecting a byproduct liquid phase component to a cracking reaction to produce other fuel oil products with high quality or high-quality ethylene cracking raw materials. The method disclosed by the invention can be used for producing a target product to the maximum extent on the basis of selective processing of the heavy fractions.

The invention discloses a method for producing gasoline and diesel oil with a low condensation point by a catalyst grading technology. The method comprises the following steps: a) mixing a heavy oil raw material with hydrogen, and allowing the mixture to pass through a reaction zone containing a hydrorefining catalyst bed layer to perform a restrictive hydrorefining reaction; b) allowing a reaction effluent obtained in the step a) to pass through a reaction zone containing a graded wax oil hydro-conversion catalyst bed layer under hydro-conversion process conditions, and allowing a reaction effluent to enter a flash tank for separation so as to obtain a gas phase and a liquid phase; c) performing subsequent separation, steam stripping and fractionation on the gas phase in the step b) to obtain converted gasoline; and d) allowing the liquid phase in the step b) to pass through a reaction zone containing a wax oil hydrocracking catalyst bed layer to perform a hydrocracking/isomerizationreaction under a hydrocracking condition, and separating and fractionating the reaction effluent to obtain heavy naphtha, low-condensation-point diesel oil and unconverted oil. According to the method, high-quality gasoline blending components and low-condensation-point diesel oil can be obtained, and good economic benefits are achieved.

The invention discloses a hydrogenation process for producing API III < + > lubricating oil base oil from Fischer-Tropsch synthetic oil. The Fischer-Tropsch synthetic oil is used as a raw material, and a hydrofining-hydro-upgrading-isodewaxing two-stage hydrogenation process is adopted to produce API III + lubricating oil base oil. The generated oil obtained by separation of hydrofining-hydro-upgrading reaction effluent enters an isodewaxing reaction zone; and the process further includes separating and fractionating the isodewaxing reaction effluent to obtain different types of API III + lubricating oil base oil products, cooling fractionated vacuum bottom oil to obtain an incompletely converted wax component, and returning the incompletely converted wax component to the hydro-upgrading reactor to continue the upgrading reaction. The invention has the advantages of simple process flow and wide raw material adaptability, and can be suitable for the process of producing special oil products with good stability by Fischer-Tropsch synthesis oil fraction hydrogenation.