Multi-stage hydrogenation reaction temperature control device
Through the multi-stage hydrogenation reaction temperature control device, combined with automatic control system and high selective catalyst, the problem of insufficient accuracy in the existing light hydrocarbon desulfurization process is solved, and the efficient and safe light hydrocarbon desulfurization effect is achieved, reducing operating costs and emission standards.
Patent Information
- Application Number
- CN202422196849.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-09-09
AI Technical Summary
The existing dry and wet desulfurization processes have problems such as insufficient accuracy, complex equipment, high cost and complex waste liquid treatment in the light hydrocarbon desulfurization process, and a more efficient temperature control device is urgently needed.
The multi-stage hydrogenation reaction temperature control device is adopted to accurately control the hydrogenation reaction temperature at different stages, combine the automatic control system and high selective catalyst to optimize the reaction efficiency and product quality, and achieve dynamic regulation and real-time monitoring.
It significantly improves the controllability and safety of the hydrogenation process, reduces the frequency of catalyst replacement and operating costs, and achieves lower sulfur and nitrogen emission standards.
Smart Images
Figure CN223288032U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of light hydrocarbon desulfurization and decontamination, in particular to a multi-stage hydrogenation reaction temperature control device. Background Art
[0002] Sulfides are ubiquitous in petrochemical products, significantly impacting their processes, performance, operator safety, and environmental protection. Sulfur content control and sulfide removal technology are both current research hotspots in oil refining and chemical processing, and are also important areas of environmental research for petrochemical products. Light hydrocarbons from oilfields are byproducts recovered from crude oil stabilization and associated gas processing units after oil extraction. Their main components are C5-C8 alkanes. Their composition and content vary depending on the recovery process. Light hydrocarbons are colorless, transparent liquids at room temperature and pressure, are volatile, and are flammable and explosive hazardous chemicals. Sulfur content control and desulfurization technology for light hydrocarbons are key processes in the refining and chemical industry, and are of great significance for ensuring the quality of distillation products and downstream deep-processing products, reducing environmental pollution, and protecting human health.
[0003] The current research status of desulfurization and decontamination technology for light hydrocarbons in oil fields in China is that the main technologies are to use dry desulfurization and wet desulfurization methods to desulfurize natural gas and stable light hydrocarbons in oil fields. Dry desulfurization mainly uses adsorbent adsorption removal, while wet desulfurization includes selective absorption and liquid phase oxidation-reduction. These process routes studied in China also have some shortcomings. Dry desulfurization: Although dry desulfurization has high accuracy, there may be some problems in its actual application, such as the selection and service life of the desulfurizer, the control of the reaction temperature, etc., which require further research and optimization. Wet desulfurization: The wet desulfurization process is complex, uses more equipment, consumes a lot of energy, and is not a precise desulfurization method. At the same time, wet desulfurization will also produce waste liquid, which needs to be treated, increasing the complexity and cost of the process.
[0004] In view of this, there is an urgent need for a multi-stage hydrogenation reaction temperature control device to improve the shortcomings of the existing technology. Utility Model Content
[0005] The purpose of the present invention is to provide a multi-stage hydrogenation reaction temperature control device to solve the problems raised in the above background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides a multi-stage hydrogenation reaction temperature control device, comprising a frame assembly, wherein the frame assembly comprises an outer frame, a desulfurization assembly is fixedly connected to the lower surface of the outer frame, the desulfurization assembly comprises a pumping machine, the pumping machine is fixedly connected to the lower surface of the outer frame, an air inlet is provided on one side of the pumping machine, the air inlet is used to pump in light hydrocarbons, one end of the pumping machine is fixedly connected to pipeline 1, a handwheel valve is fixedly connected to the surface of the pipeline 1, one end of the pipeline 1 is fixedly connected to a nickel-based bin, one end of the nickel-based bin is fixedly connected to pipeline 2, the end of the pipeline 2 away from the nickel-based bin is fixedly connected to a molybdenum-based bin, and a hydrogen supply assembly is fixedly connected to the upper surface of the outer frame, and the hydrogen supply assembly provides hydrogen to each chamber.
[0007] As a further improvement of the present technical solution, a cross brace is fixedly connected to the upper portion of the outer frame, a support bar is fixedly connected to the middle portion of the cross brace, and the other end of the support bar is fixedly connected to the lower surface of the outer frame.
[0008] As a further improvement of the present technical solution, one end of the molybdenum-based warehouse is fixedly connected to pipeline three, and the other end of the pipeline three is fixedly connected to a pretreatment warehouse, and the pretreatment warehouse is used to remove impurities and pre-adjust components. One end of the pretreatment warehouse is fixedly connected to pipeline four, and one end of the pipeline four is fixedly connected to a mixing warehouse, and the mixing warehouse is used to optimize the mixing ratio and mixing method of the raw material and hydrogen, and improve the reaction efficiency and selectivity. One end of the mixing warehouse is fixedly connected to an air outlet, and the air outlet is fixedly connected to a bracket, and the bracket reinforces the stability of the air outlet.
[0009] As a further improvement of the present technical solution, the hydrogen supply assembly includes a hydrogen tank, one end of the hydrogen tank is fixedly connected to a filling port, the filling port is used to fill the hydrogen tank with hydrogen, a strap is fixedly connected to the surface of the hydrogen tank, the end of the hydrogen tank away from the filling port is fixedly connected to an outlet pipe, one end of the outlet pipe is fixedly connected to a four-way valve, the four-way valve adjusts the gas output by electronic control, the four-way valve is fixedly connected to hydrogen supply pipe one, one end of the hydrogen supply pipe one is fixedly connected to the nickel-based warehouse, the four-way valve is fixedly connected to hydrogen supply pipe two, one end of the hydrogen supply pipe two is connected to the molybdenum-based warehouse, the four-way valve is fixedly connected to hydrogen supply pipe three, one end of the hydrogen supply pipe three is fixedly connected to the mixing warehouse.
[0010] As a further improvement of the present technical solution, the surfaces of the nickel-based bin, the molybdenum-based bin and the pretreatment bin are all provided with thermometers, which are used to detect the temperature during the reaction; the surfaces of the pipes one, two, three and four are all provided with handle valves, which are used to isolate each other when the reaction is too large.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] This multi-stage hydrogenation reaction temperature control device uses a multi-stage hydrogenation reaction temperature control device. This device can optimize reaction efficiency and product quality by precisely controlling the hydrogenation reaction temperature at different stages, significantly improving the controllability and safety of the hydrogenation process. The innovation of this temperature control technology lies in its ability to adjust in real time according to the properties of the reactants and the conversion rate to ensure optimal reaction conditions:
[0013] Accurately control the reaction conditions. By precisely controlling the reaction temperature and pressure, the sulfur and nitrogen removal effects are optimized. Experimental data show that with the increase of temperature and pressure, the sulfur and nitrogen content gradually decreases, reaching lower emission standards.
[0014] The dynamic adjustment system introduces an automatic control system to monitor and adjust the reaction operating parameters in real time to ensure the optimal desulfurization and denitrification effect.
[0015] High-efficiency desulfurization and denitrification catalytic technology, selective catalyst formula development and application of catalysts with high selectivity for sulfides and nitrides, improve catalytic efficiency and extend catalyst service life, implement effective catalyst regeneration materials, reduce the number of catalyst replacements, and reduce operating costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the overall structure of Example 1;
[0017] Figure 2 This is a schematic diagram of the desulfurization component structure of Example 1;
[0018] Figure 3 This is a schematic diagram of the rear view structure of the desulfurization assembly of Example 1;
[0019] Figure 4 This is a schematic diagram of the structure of the hydrogen supply component of Example 1.
[0020] The meaning of each number in the figure is:
[0021] 1. Frame assembly; 10. Outer frame; 11. Cross brace; 12. Support bar; 13. Bracket;
[0022] 2. Desulfurization assembly; 200. Pumping machine; 201. Air inlet; 202. Handwheel valve; 203. Pipeline 1; 204. Nickel-based chamber; 205. Pipeline 2; 206. Molybdenum-based chamber; 207. Pipeline 3; 208. Pretreatment chamber; 209. Pipeline 4; 210. Mixing chamber; 211. Air outlet;
[0023] 3. Hydrogen supply assembly; 30. Hydrogen tank; 31. Filling port; 32. Binding strap; 33. Exhaust pipe; 34. Four-way valve; 35. Hydrogen supply pipe 1; 36. Hydrogen supply pipe 2; 37. Hydrogen supply pipe 3. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0025] Example
[0026] See also Figure 1-Figure 4 As shown, this embodiment provides a multi-stage hydrogenation reaction temperature control device, including a frame component 1, the frame component 1 includes an outer frame 10, the lower surface of the outer frame 10 is fixedly connected to a desulfurization component 2, the desulfurization component 2 includes a pumping machine 200, the pumping machine 200 is fixedly connected to the lower surface of the outer frame 10, and an air inlet 201 is provided on one side of the pumping machine 200, the air inlet 201 is used to pump in light hydrocarbons, one end of the pumping machine 200 is fixedly connected to a pipeline 1 203, the surface of the pipeline 1 203 is fixedly connected to a handwheel valve 202, one end of the pipeline 1 203 is fixedly connected to a nickel-based bin 204, one end of the nickel-based bin 204 is fixedly connected to a pipeline 2 205, and the end of the pipeline 2 205 away from the nickel-based bin 204 is fixedly connected to a molybdenum-based bin 206, and the upper surface of the outer frame 10 is fixedly connected to a hydrogen supply component 3, which provides hydrogen to each chamber.
[0027] The above working principle: first, connect the light hydrocarbon pipeline to the air inlet 201, turn on the power of the device, and the light hydrocarbon is pumped into the system by the pumping machine 200 through the air inlet 201. The flow of light hydrocarbons can be adjusted by the handwheel valve 202 to ensure that the raw material supply in the reactor meets the set reaction conditions. The nickel-based bin 204 is connected to the pipeline 1 203 for catalytic reaction or other necessary processing steps. The nickel-based bin 204 and the molybdenum-based bin 206 contain different types of catalysts for promoting specific chemical changes in the hydrogenation reaction, such as the removal of sulfides in the desulfurization process. The hydrogen supply component 3 is responsible for providing the required hydrogen to the reactor, which is an essential component in the hydrogenation reaction and is used to react with light hydrocarbons to reduce their sulfide content or other unwanted components.
[0028] In order to support the structure, in this embodiment, a cross brace 11 is fixedly connected to the top of the outer frame 10, a support bar 12 is fixedly connected to the middle of the cross brace 11, and the other end of the support bar 12 is fixedly connected to the lower surface of the outer frame 10. The outer frame 10 is used to fix the whole to ensure the overall stability, and the support bar 12 is used to fix the pretreatment chamber 208 and the air outlet 211 to prevent the built-in devices from colliding with each other and causing damage during operation.
[0029] In order to have higher thermal stability and corrosion resistance, therefore, in this embodiment, one end of the molybdenum base warehouse 206 is fixedly connected to the pipeline three 207, and the other end of the pipeline three 207 is fixedly connected to the pretreatment warehouse 208, and the pretreatment warehouse 208 is used to remove impurities and pre-adjust components. One end of the pretreatment warehouse 208 is fixedly connected to the pipeline four 209, and one end of the pipeline four 209 is fixedly connected to the mixing warehouse 210. The mixing warehouse 210 is used to optimize the mixing ratio and mixing method of the raw materials and hydrogen, and improve the reaction efficiency and selectivity. One end of the mixing warehouse 210 is fixedly connected to the gas outlet 211, and the gas outlet 212 is fixedly connected to the gas outlet 213. 11 is fixedly connected to a bracket 13, which reinforces the stability of the gas outlet 211. It utilizes a new molybdenum-based catalyst suitable for more stringent reaction conditions. Its innovation lies in its long-term stable operation, reduced replacement frequency, and lower maintenance costs. The pretreatment chamber 208 pre-treats the crude oil to remove impurities and pre-adjust components, creating more ideal input conditions for the hydrogenation reaction. The innovation of pretreatment improves the quality of the raw material and reduces energy and catalyst consumption in the subsequent hydrogenation process. By optimizing the mixing ratio and mixing method of the raw material and hydrogen, the reaction efficiency and selectivity are improved. This mixing technology is innovative in its ability to adjust the mixing ratio in real time, responding to dynamic changes during the reaction process and ensuring optimal reaction conditions.
[0030] In order to ensure the best reaction conditions, in this embodiment, the hydrogen supply component 3 includes a hydrogen tank 30, one end of the hydrogen tank 30 is fixedly connected to a filling port 31, the filling port 31 is used to fill the hydrogen tank 30 with hydrogen, a strap 32 is fixedly connected to the surface of the hydrogen tank 30, the end of the hydrogen tank 30 away from the filling port 31 is fixedly connected to an outlet pipe 33, one end of the outlet pipe 33 is fixedly connected to a four-way valve 34, the four-way valve 34 adjusts the gas output through electrical control, and the four-way valve 34 is fixedly connected to a hydrogen supply pipe 35, supplying One end of the hydrogen pipeline 35 is fixedly connected to the nickel-based warehouse 204, the four-way valve 34 is fixedly connected to the hydrogen supply pipeline 2 36, one end of the hydrogen supply pipeline 2 36 is connected to the molybdenum-based warehouse 206, the four-way valve 34 is fixedly connected to the hydrogen supply pipeline 3 37, one end of the hydrogen supply pipeline 3 37 is fixedly connected to the mixing warehouse 210. According to the chamber temperature, the four-way valve 34 controls the supply of hydrogen in the hydrogen tank 30, and supplies hydrogen into the chamber through the hydrogen supply pipeline 1 35, the hydrogen supply pipeline 2 36 and the hydrogen supply pipeline 3 37 to generate corresponding reactions.
[0031] In order to detect and control the hydrogenation reaction, in this embodiment, the surfaces of the nickel-based chamber 204, the molybdenum-based chamber 206 and the pretreatment chamber 208 are all provided with thermometers for detecting the temperature during the reaction. The surfaces of pipe 1 203, pipe 2 205, pipe 3 207 and pipe 4 209 are all provided with handle valves for isolating each other when the reaction is too large. The air intake is controlled by the thermometer and the temperature sensor, and the handle valve can be closed manually or automatically.
[0032] In the specific use of a multi-stage hydrogenation reaction temperature control device in this embodiment, first connect the light hydrocarbon pipeline to the air inlet 201, turn on the power of the device, and use the outer frame 10 to fix the entire device to ensure its stability. The support bar 12 is used to fix the pretreatment chamber 208 and the air outlet 211 to prevent damage caused by collision between the built-in devices during operation. The light hydrocarbon is pumped into the system by the pumping machine 200 through the air inlet 201. The flow rate of the light hydrocarbon can be adjusted by the handwheel valve 202 to ensure that the raw material supply in the reactor meets the set reaction conditions. The nickel-based chamber 204 is connected to the pipeline 1 203 for catalytic reaction or other necessary processing steps. The nickel-based chamber 204 and the molybdenum-based chamber 206 contain different types of catalysts for promoting specific chemical changes in the hydrogenation reaction. The new molybdenum-based catalyst is suitable for more stringent reaction conditions. The innovation is reflected in the long-term stable operation capability of the catalyst, reduced replacement frequency, and lowered maintenance costs. The pretreatment chamber 208 pretreats the crude oil to remove impurities and pre-adjust components to create more ideal input conditions for the hydrogenation reaction. The innovation of pretreatment lies in improving the quality of the raw materials, reducing energy consumption and catalyst consumption in the subsequent hydrogenation process, and improving reaction efficiency and selectivity by optimizing the mixing ratio and mixing method of the raw materials and hydrogen. The innovation of this mixing technology lies in its ability to adjust the mixing ratio in real time, respond to dynamic changes in the reaction process, and ensure optimal reaction conditions. The hydrogen supply component 3 is responsible for providing the required hydrogen to the reactor. According to the chamber temperature, the four-way valve 34 controls the supply of hydrogen in the hydrogen tank 30, and hydrogen is supplied to the chamber through hydrogen supply pipe 1 35, hydrogen supply pipe 2 36 and hydrogen supply pipe 3 37 to produce corresponding reactions. Hydrogen is an indispensable component in the hydrogenation reaction and is used to react with light hydrocarbons to reduce their sulfide content or other unwanted components.
[0033] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.
Claims
1. A multi-stage hydrogenation reaction temperature control device, comprising a frame assembly (1), characterized in that: The frame assembly (1) comprises an outer frame (10), a desulfurization assembly (2) is fixedly connected to the lower surface of the outer frame (10), the desulfurization assembly (2) comprises a pumping machine (200), the pumping machine (200) is fixedly connected to the lower surface of the outer frame (10), an air inlet (201) is provided on one side of the pumping machine (200), the air inlet (201) is used to pump in light hydrocarbons, one end of the desulfurization assembly pumping machine (200) is fixedly connected to a pipeline 1 (203), the A handwheel valve (202) is fixedly connected to the surface of pipeline one (203), one end of the pipeline one (203) is fixedly connected to a nickel-based bin (204), one end of the nickel-based bin (204) is fixedly connected to pipeline two (205), and one end of the pipeline two (205) away from the nickel-based bin (204) is fixedly connected to a molybdenum-based bin (206), and a hydrogen supply component (3) is fixedly connected to the upper surface of the outer frame (10), and the hydrogen supply component (3) provides hydrogen to each chamber.
2. The multi-stage hydrogenation reaction temperature control device according to claim 1, characterized in that: A cross brace (11) is fixedly connected to the upper portion of the outer frame (10), a support bar (12) is fixedly connected to the middle portion of the cross brace (11), and the other end of the support bar (12) is fixedly connected to the lower surface of the outer frame (10).
3. The multi-stage hydrogenation reaction temperature control device according to claim 1, characterized in that: One end of the molybdenum-based bin (206) is fixedly connected to a pipe three (207), and the other end of the pipe three (207) is fixedly connected to a pretreatment bin (208), and the pretreatment bin (208) is used to remove impurities and pre-adjust components. One end of the pretreatment bin (208) is fixedly connected to a pipe four (209), and one end of the pipe four (209) is fixedly connected to a mixing bin (210), and the mixing bin (210) is used to optimize the mixing ratio and mixing mode of the raw material and hydrogen, thereby improving the reaction efficiency and selectivity. One end of the mixing bin (210) is fixedly connected to an air outlet (211), and the air outlet (211) is fixedly connected to a bracket (13), and the bracket (13) reinforces the stability of the air outlet (211).
4. The multi-stage hydrogenation reaction temperature control device according to claim 3, characterized in that: The hydrogen supply assembly (3) comprises a hydrogen tank (30), one end of the hydrogen tank (30) is fixedly connected to a filling port (31), the filling port (31) is used to fill the hydrogen tank (30) with hydrogen, a binding strap (32) is fixedly connected to the surface of the hydrogen tank (30), one end of the hydrogen tank (30) away from the filling port (31) is fixedly connected to an outlet pipe (33), one end of the outlet pipe (33) is fixedly connected to a four-way valve (34), and the four-way valve (34) is fixedly connected to the outlet pipe (33). The gas output is adjusted by electric control. The four-way valve (34) is fixedly connected to a first hydrogen supply pipeline (35), one end of which is fixedly connected to a nickel-based bin (204). The four-way valve (34) is fixedly connected to a second hydrogen supply pipeline (36), one end of which is connected to a molybdenum-based bin (206). The four-way valve (34) is fixedly connected to a third hydrogen supply pipeline (37), one end of which is fixedly connected to a mixing bin (210).
5. The multi-stage hydrogenation reaction temperature control device according to claim 2, characterized in that: The surfaces of the nickel-based chamber (204), the molybdenum-based chamber (206) and the pretreatment chamber (208) are all provided with thermometers for detecting the temperature during the reaction. The surfaces of the pipe one (203), the pipe two (205), the pipe three (207) and the pipe four (209) are all provided with handle valves for isolating each other when the reaction is too large.