Side-mounted residual oil hydrogenation emulsification bed micro-interface enhanced reaction device and method

Abstract

The invention discloses a side-mounted residual oil hydrogenation emulsification bed micro-interface enhanced reaction device and method. The device comprises a reactor body, at least one bubble breaker laterally arranged on the reactor body, a gas-liquid separator, a circulating pump and a heat exchanger. A gas material and a liquid material are firstly fed into the breakers, the gas is crushed into small micron-sized bubbles, the micron-sized bubbles are violently mixed with the liquid to form a gas-liquid emulsion, and the gas-liquid emulsion enters the reactor body. Due to the characteristics of low speed and difficult coalescence of the micro-bubbles, a gas-liquid emulsification bed reaction system is formed in the reactor body. After the reaction is completed, reaction materials enter the gas-liquid separator to separate gas and liquid, the material liquid is conveyed by the circulating pump and passes through the heat exchanger, one part of the material liquid is extracted, andthe other part of the material liquid enters the corresponding breaker to be used for bubble breaking. The device and the method disclosed by the invention have the advantages of low operation pressure, large gas-liquid mass transfer phase interface area, high apparent reaction speed, high gas utilization rate, low investment, low energy consumption, flexible process and the like.

Description

Technical field

[0001] The invention relates to a side-mounted residual oil hydro-emulsified bed micro-interface strengthening reaction device and method. Background technique

[0002] Residual oil can be divided into many types due to different crude oil producing areas and refining processes. Generally, it can be divided into two categories: atmospheric residual oil and vacuum residual oil. The main components of residual oil include saturated hydrocarbons, aromatic hydrocarbons, gums and asphaltenes. Under the action of high temperature, high pressure and catalyst, the residual oil can be deeply hydrogenated to obtain light fuel oil products through a series of complex physical and chemical changes such as ring opening and cracking.

[0003] With the increasing demand for light oil products in various countries around the world, the requirements for environmental protection have become stricter, and people have paid more attention to the hydrogenation technology of residual oil...

Examples

Embodiment 1

[0042] Such as figure 1 A side-mounted residue hydro-emulsified bed micro-interface strengthening reaction device shown includes a reactor main body 1; the top of which is provided with a gas-liquid discharge port, which is connected to gas-liquid discharge pipelines 1-8;

[0043] A set of bubble breakers; consists of a hydraulic bubble breaker 1-1 and a pneumatic bubble breaker 1-2 in series. The pneumatic bubble breaker 1-2 is equipped with an air inlet, which is connected to the pneumatic bubble breaker air inlet pipeline 1-6; the liquid inlet is connected to the liquid raw material pipeline 1-7; the hydraulic bubble breaker 1-1 The liquid inlet is connected to the circulating fluid pipeline 4-2; the air inlet is connected to the hydraulic air bubble breaker air inlet pipeline 1-4; the pneumatic air bubble breaker air inlet pipeline 1-6 and the hydraulic air bubble The breaker inlet pipe 1-4 is connected to the gas raw material pipe 1-3; the bubble breaker is arranged on the s...

Embodiment 2

[0051] The device structure of Example 2 is as figure 2 As shown, the difference from Example 1 is that the flow guide cylinder 1-10 is provided in the reactor body 1.

[0052] The mixture of hydrogen and 60% residual oil and 40% coal tar with a mass fraction of 60% and 40% coal tar enters the bubble breaker through gas raw material pipelines 1-3 and liquid raw material pipelines 1-7 at a volume ratio of 500:1. The residual oil is sent to the pneumatic bubble breaker 1-2 from the liquid raw material pipeline 1-7; the hydrogen entering from the gas raw material pipeline 1-3 is divided into two ways, one way passes through the pneumatic bubble breaker intake pipeline 1-6 It is fed into the pneumatic bubble breaker 1-2 as the driving force for the crushing, and the other way enters the hydraulic bubble breaker 1-1 through the air inlet pipe 1-4 of the hydraulic bubble breaker. The circulating liquid sent from the circulating liquid pipeline 4-2 is broken into a primary emulsion, an...

Embodiment 3

[0055] The device structure of Example 3 is as follows image 3 As shown, the difference from Embodiment 1 is that the bubble breaker uses gas-liquid linkage bubble breaker 1-11.

[0056] The mixture of 30% mass fraction residual oil and 70% coal tar and fresh hydrogen enter the bubble breaker 1- through the gas raw material pipeline 1-3 and the liquid raw material pipeline 1-7 at a volume ratio of 1:1800. 11 in. Maintain pressure at 12MPa, temperature control at 470℃, use carbon-supported iron-based catalyst, and space velocity at 1.5h -1 . In the bubble breaker 1-11, the circulating fluid sent through the circulating fluid pipeline 4-2 is broken into a gas-liquid system of 10μm-100μm microbubbles, and then enters the reactor body 1 to form a vortex to continue the reaction, and the emulsification system stops reacting After staying in the main body for 2.5 hours, it enters the gas-liquid separator 2 through the top gas-liquid discharge line 1-8, and the separated gas is sent t...

Technical field

[0001] The invention relates to a side-mounted residual oil hydro-emulsified bed micro-interface strengthening reaction device and method. Background technique

[0002] Residual oil can be divided into many types due to different crude oil producing areas and refining processes. Generally, it can be divided into two categories: atmospheric residual oil and vacuum residual oil. The main components of residual oil include saturated hydrocarbons, aromatic hydrocarbons, gums and asphaltenes. Under the action of high temperature, high pressure and catalyst, the residual oil can be deeply hydrogenated to obtain light fuel oil products through a series of complex physical and chemical changes such as ring opening and cracking.

[0003] With the increasing demand for light oil products in various countries around the world, the requirements for environmental protection have become stricter, and people have paid more attention to the hydrogenation technology of residual oil...

Examples

Embodiment 1

[0042] Such as figure 1 A side-mounted residue hydro-emulsified bed micro-interface strengthening reaction device shown includes a reactor main body 1; the top of which is provided with a gas-liquid discharge port, which is connected to gas-liquid discharge pipelines 1-8;

[0043] A set of bubble breakers; consists of a hydraulic bubble breaker 1-1 and a pneumatic bubble breaker 1-2 in series. The pneumatic bubble breaker 1-2 is equipped with an air inlet, which is connected to the pneumatic bubble breaker air inlet pipeline 1-6; the liquid inlet is connected to the liquid raw material pipeline 1-7; the hydraulic bubble breaker 1-1 The liquid inlet is connected to the circulating fluid pipeline 4-2; the air inlet is connected to the hydraulic air bubble breaker air inlet pipeline 1-4; the pneumatic air bubble breaker air inlet pipeline 1-6 and the hydraulic air bubble The breaker inlet pipe 1-4 is connected to the gas raw material pipe 1-3; the bubble breaker is arranged on the s...

Embodiment 2

[0051] The device structure of Example 2 is as figure 2 As shown, the difference from Example 1 is that the flow guide cylinder 1-10 is provided in the reactor body 1.

[0052] The mixture of hydrogen and 60% residual oil and 40% coal tar with a mass fraction of 60% and 40% coal tar enters the bubble breaker through gas raw material pipelines 1-3 and liquid raw material pipelines 1-7 at a volume ratio of 500:1. The residual oil is sent to the pneumatic bubble breaker 1-2 from the liquid raw material pipeline 1-7; the hydrogen entering from the gas raw material pipeline 1-3 is divided into two ways, one way passes through the pneumatic bubble breaker intake pipeline 1-6 It is fed into the pneumatic bubble breaker 1-2 as the driving force for the crushing, and the other way enters the hydraulic bubble breaker 1-1 through the air inlet pipe 1-4 of the hydraulic bubble breaker. The circulating liquid sent from the circulating liquid pipeline 4-2 is broken into a primary emulsion, an...

Embodiment 3

[0055] The device structure of Example 3 is as follows image 3 As shown, the difference from Embodiment 1 is that the bubble breaker uses gas-liquid linkage bubble breaker 1-11.

[0056] The mixture of 30% mass fraction residual oil and 70% coal tar and fresh hydrogen enter the bubble breaker 1- through the gas raw material pipeline 1-3 and the liquid raw material pipeline 1-7 at a volume ratio of 1:1800. 11 in. Maintain pressure at 12MPa, temperature control at 470℃, use carbon-supported iron-based catalyst, and space velocity at 1.5h -1 . In the bubble breaker 1-11, the circulating fluid sent through the circulating fluid pipeline 4-2 is broken into a gas-liquid system of 10μm-100μm microbubbles, and then enters the reactor body 1 to form a vortex to continue the reaction, and the emulsification system stops reacting After staying in the main body for 2.5 hours, it enters the gas-liquid separator 2 through the top gas-liquid discharge line 1-8, and the separated gas is sent t...

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