5results about How to "Moderate operating conditions" patented technology

The invention relates to the field of chemical engineering, and discloses a production method of a high-smoke-point aviation kerosene product. The method comprises the following steps: (1) in the presence of hydrogen, carrying out gas-phase desulfurization reaction on an aviation kerosene raw material in a hydrodesulfurization reactor to obtain a gas-phase desulfurization reaction product; (2) the gas-phase desulfurization reaction product is subjected to gas-liquid separation, a gas-phase component and a liquid-phase component are obtained, and based on the total amount of the gas-phase desulfurization reaction product, the mass percentage of the liquid-phase component is 15-50%; (3) pressurizing the liquid-phase component, and then carrying out liquid-phase dearomatization reaction in a hydrodearomatization reactor to obtain a liquid-phase dearomatization reaction product; wherein the smoke point of the aviation kerosene raw material is 16-22 mm. According to the method, the aviation kerosene is used as a raw material to produce a high-smoke-point aviation kerosene product under a relatively mild process condition, meanwhile, the chemical reaction efficiency is also improved, and the energy consumption and the hydrogen consumption are reduced.

This invention relates to the chemical industry and discloses a method for hydrodesulfurization and denitrification of high-nitrogen jet fuel. The method includes the following steps: (1) in the presence of hydrogen, the jet fuel raw material undergoes a gas-phase desulfurization reaction in a first hydrotreating reactor to obtain a gas-phase desulfurization reaction product; (2) the gas-phase desulfurization reaction product is subjected to gas-liquid separation to obtain a gas phase component and a liquid phase component; (3) the liquid phase component is pressurized and then subjected to a liquid-phase denitrification reaction in a second hydrotreating reactor to obtain a liquid-phase denitrification reaction product; wherein the nitrogen content in the jet fuel raw material is ≥10 μg / g. This method allows for the production of qualified jet fuel products under more moderate process conditions using high-nitrogen jet fuel as raw material, while also improving chemical reaction efficiency and reducing energy and hydrogen consumption.

The present invention discloses a method for deep dearomatization of low-quality diesel. The method comprises the following steps: (1) low-quality diesel feedstock and hydrogen enter a first reactor to carry out a gas phase desulfurization reaction; (2) the effluent of the first reactor enters a second reactor after being pressurized, wherein the gas phase component is discharged upward from the second reactor, and after being treated with desulfurized hydrogen, a hydrogenated light component is obtained, and the liquid phase component is subjected to a liquid phase hydrogenation dearomatization reaction downward to obtain a hydrogenated heavy component which is discharged from the bottom of the second reactor; (3) the hydrogenated heavy component is mixed with the hydrogenated light component to obtain a refined diesel product. The method of the present invention can achieve the effect of deep dearomatization, and at the same time, it also simplifies the process flow, reduces the reaction severity, and improves the chemical reaction efficiency in general.

The invention relates to the field of oil refining and chemical engineering, and discloses a diesel hydrogenation method and system. The invention relates to a diesel hydrogenation method, which comprises: (1) carrying out a gas phase desulfurization reaction on diesel in a gas phase hydrogenation reactor in the presence of hydrogen to obtain a gas phase desulfurization reaction product; (2) carrying out gas-liquid separation on the gas-phase desulfurization reaction product to obtain a gas-phase component and a liquid-phase component; and (3) carrying out pressurization and hydrogen mixing on the liquid-phase component, and then carrying out a liquid-phase dearomatization reaction in a liquid-phase hydrogenation reactor to obtain a liquid-phase dearomatization reaction product. According to the method, the deep dearomatization effect can be achieved on the basis of achieving desulfurization, meanwhile, the technological process is simplified on the whole, the reaction severity is reduced, and energy consumption and hydrogen consumption are reduced.

The invention relates to the field of chemical engineering, and discloses a hydrodesulfurization and denitrification method for high-nitrogen aviation kerosene. The method comprises the following steps: (1) in the presence of hydrogen, carrying out a gas-phase desulfurization reaction on an aviation kerosene raw material in a first hydrogenation reactor to obtain a gas-phase desulfurization reaction product; (2) carrying out gas-liquid separation on the gas-phase desulfurization reaction product to obtain a gas-phase component and a liquid-phase component; (3) pressurizing the liquid-phase component, and then carrying out liquid-phase denitrification reaction in a second hydrogenation reactor to obtain a liquid-phase denitrification reaction product; wherein the content of N in the aviation kerosene raw material is not less than 10 [mu] g / g. The method has the advantages that the high-nitrogen aviation kerosene is used as the raw material to produce the qualified aviation kerosene product under the relatively mild process condition, the chemical reaction efficiency is improved, and the energy consumption and the hydrogen consumption are reduced.