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Mixed oil hydrogenation micro-interface enhanced reaction system and method

A technology of hydrogenation reaction and reaction system, applied in chemical instruments and methods, hydrocarbon oil cracking, petroleum industry, etc., can solve the problem of high hydrogen energy consumption, achieve low process severity, sufficient and stable emulsification and mixing, and reduce material consumption. Effect

Inactive Publication Date: 2021-01-05
NANJING YANCHANG REACTION TECH RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Therefore, the present invention provides a micro-interface strengthening reaction system and method for hydrogenation of miscella to overcome the problem in the prior art that hydrogen gas cannot fully contact with miscella resulting in high energy consumption

Method used

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  • Mixed oil hydrogenation micro-interface enhanced reaction system and method
  • Mixed oil hydrogenation micro-interface enhanced reaction system and method
  • Mixed oil hydrogenation micro-interface enhanced reaction system and method

Examples

Experimental program
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Effect test

Embodiment 1

[0101] In this embodiment, the standard volume ratio of hydrogen and mixed oil in the first micro-interface generator is 0.45:1; the standard volume ratio of hydrogen and mixed oil in the micro-interface generator is 600:1; the average diameter of the microbubbles is greater than or equal to 1μm, less than 1mm microbubbles; the air pressure inside the fixed reactor 4 is controlled at 0.8MPa; the reaction temperature is controlled at 300°C; the catalyst is iron-molybdenum catalyst; the space velocity is controlled at 1h -1 . Test results: the sulfur content in raw gasoline before treatment was 110ppm, and the sulfur content in the treated mixed oil after treatment dropped to 35ppm.

Embodiment 2

[0103] In this example, the standard volume ratio of hydrogen to mixed oil in the first microinterface generator is 0.20:1; the standard volume ratio of hydrogen to mixed oil in the second microinterface generator is 655:1; the average diameter of microbubbles Microbubbles greater than or equal to 1μm and less than 1mm; the air pressure inside the fixed reactor 4 is controlled at 1MPa; the reaction temperature is controlled at 330°C; the catalyst is iron-cobalt catalyst; the space velocity is controlled at 3h -1 . Test results: the sulfur content in raw gasoline before treatment was 110ppm, and the sulfur content in the treated mixed oil after treatment dropped to 43ppm.

Embodiment 3

[0105] In this example, the standard volume ratio of hydrogen to mixed oil in the first microinterface generator is 0.35:1; the standard volume ratio of hydrogen to mixed oil in the second microinterface generator is 720:1; the average diameter of microbubbles Microbubbles greater than or equal to 1μm and less than 1mm; the air pressure inside the fixed reactor 4 is controlled at 1.2MPa; the reaction temperature is controlled at 350°C; the catalyst is a molybdenum-nickel catalyst; the space velocity is controlled at 6.5h -1 . Test results: the sulfur content in raw gasoline before treatment was 110ppm, and the sulfur content in the treated mixed oil dropped to 38ppm after treatment.

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Abstract

The invention relates to a mixed oil hydrogenation micro-interface enhanced reaction system and method. The mixed oil hydrogenation micro-interface enhanced reaction system comprises a liquid phase feeding unit, a gas phase feeding unit, a micro-interface generator, a fixed bed reactor and a separation tank. Compared with a traditional fixed bed reactor, the micro-interface generator is arranged on the fixed bed reactor, and before reaction raw materials enter the reactor for reaction, pressure energy of gas and / or kinetic energy of liquid in the reaction process are / is converted into surfaceenergy of hydrogen bubbles, hydrogen bubbles are crushed into micro-bubbles with a diameter of more than or equal to 1 [mu] m and less than 1 mm, so the phase contact area between mixed oil and hydrogen in the hydrogenation reaction process is effectively increased, the mass transfer efficiency between the mixed oil and hydrogen is improved, and the mixed oil and the hydrogen micro-bubbles are mixed to form a gas-liquid emulsion after crushing, and furthermore, the reaction efficiency between the mixed oil and the hydrogen is enhanced within a relatively low preset pressure range.

Description

technical field [0001] The invention relates to the technical field of mixed oil processing, in particular to a mixed oil hydrogenation micro-interface strengthening reaction system and method. Background technique [0002] In recent years, with the increasing scarcity of oil resources, the trend of heavy and inferior crude oil has become increasingly serious, and with the development of the economy, the demand for light oil products is increasing. Therefore, the largest amount of heavy oil to light, Maximization of benefits has become the goal pursued by oil refineries. [0003] The main means of heavy oil processing are hydrocracking, catalytic cracking and delayed coking. The application of hydrocracking is limited due to large investment, high operating cost, and difficulty in processing coking mixed oil and residual oil. The application of delayed coking is also limited due to factors such as low liquid yield and poor product quality. Catalytic cracking has low operat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G47/20B01J8/02
CPCB01J8/0278C10G47/20C10G2300/4006C10G2300/70
Inventor 张志炳周政孟为民王宝荣杨高东罗华勋张锋李磊杨国强田洪舟曹宇
Owner NANJING YANCHANG REACTION TECH RES INST CO LTD
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