Variable-temperature adsorption and desorption device

Abstract

The utility model relates to the technical field of adsorption and desorption devices, and discloses a variable-temperature adsorption and desorption device which comprises a reaction furnace, a temperature sensor, a temperature sensor and a temperature sensor, the gas-liquid separation tank is arranged at the gas outlet end of the condenser, a preheating furnace is arranged at the gas inlet end of the reaction furnace, and a water vapor evaporator is arranged at the gas inlet end of the preheating furnace; the nitric oxide gas inlet is formed in the gas inlet end of the water vapor evaporator, a carbon dioxide gas inlet is further formed in the gas inlet end of the water vapor evaporator, and a nitrogen and sulfur dioxide gas inlet is formed in the surface of the water vapor evaporator. The condenser, the gas-liquid separation tank, the water vapor evaporator and the preheating furnace which are additionally arranged can maintain an optimal adsorption temperature interval, so that the adsorption quantity of an adsorbent on adsorbate can be increased, and the adsorption effect of the device is improved; a carbon dioxide inlet and a nitrogen and sulfur dioxide inlet are additionally arranged, so that various gaseous emissions can be effectively separated and removed.

Description

TECHNICAL FIELD

[0001] The utility model relates to adsorption and desorption device technical field, specifically is a variable temperature adsorption and desorption device. BACKGROUND

[0002] Variable temperature adsorption and desorption device is a kind of equipment using the difference of adsorbent adsorption capacity at different temperatures, realizes the equipment of adsorption and desorption process by changing temperature, commonly used in gas separation, purification and industrial waste gas treatment etc.

[0003] Common adsorption and desorption device generally changes reaction condition to provide desorption environment, such as steam, hot air, nitrogen etc., to realize the desorption of adsorbate.

[0004] Due to the adsorption capacity of adsorbent to pollutants is different in different temperature intervals.If temperature control is improper, exceed the best adsorption temperature interval, the adsorption amount of adsorbent to adsorbate will reduce, lead to the deterioration of adsorption effect, cannot effectively remove pollutants, and cannot be imported complex gaseous component, this will limit the selective adsorption capacity of adsorption device to specific pollutants, difficult to realize the effective separation and removal of multiple pollutants.At the same time, acidic gas can cause corrosion to equipment after entering the device, shortens the service life of device. UTILITY MODEL CONTENTS

[0005] (1) technical problem solved

[0006] In view of the deficiency of prior art, the utility model provides a variable temperature adsorption and desorption device to solve the following problems existing in the background art: at different temperatures, the adsorption capacity of adsorbent to pollutants is different, if temperature control is improper, exceed the best adsorption temperature interval, the adsorption amount of adsorbent to adsorbate will reduce, lead to the deterioration of adsorption effect, cannot effectively remove pollutants.In addition, traditional device cannot be imported complex gaseous component, this limits the selective adsorption capacity of adsorption device to specific pollutants, difficult to realize the effective separation and removal of multiple pollutants.At the same time, acidic gas can cause corrosion to equipment after entering the device, shortens the service life of device.

[0007] (2) technical scheme

[0008] To achieve the above object, the utility model provides the following technical scheme: a variable temperature adsorption and desorption device, comprising:

[0009] Reaction furnace, the gas outlet of reaction furnace is equipped with condenser;

[0010] Gas-liquid separation tank, set up in the gas outlet of condenser, the gas inlet of reaction furnace is equipped with preheating furnace, the gas inlet of preheating furnace is equipped with water vapor evaporator;

[0011] A nitric oxide inlet is located at the inlet end of the water vapor evaporator. The inlet end of the water vapor evaporator is also provided with a carbon dioxide inlet. A nitrogen inlet is opened on the surface of the water vapor evaporator. A sulfur dioxide inlet is also opened on the surface of the water vapor evaporator. A mass flow meter is installed between the nitrogen and sulfur dioxide inlets and the water vapor evaporator. There is a mass flow meter (MFC) after each inlet for precise control of flue gas flow.

[0012] Preferably, the gas outlet of the reactor is connected to the gas inlet of the condenser via a pipe, and the gas outlet of the condenser is connected to the gas inlet of the gas-liquid separator via a pipe. During the adsorption process, the condenser can convert water vapor in the flue gas from the gas phase to the liquid phase, facilitating subsequent collection and treatment. By lowering the temperature of the adsorbate, its adsorption capacity on the adsorbent surface can be enhanced, thereby improving the adsorption efficiency. In the adsorption stage, after the gas-liquid mixture enters the gas-liquid separator, the density difference between the gas and liquid causes the liquid to settle to the bottom of the tank under gravity, while the gas is discharged from the top, thus achieving gas-liquid separation. The separated gas can enter the subsequent adsorption unit for adsorption treatment, while the liquid can be further processed or recovered.

[0013] Preferably, the gas-liquid separator is equipped with a flue gas outlet pipe at its outlet end, through which the gas in the device can be discharged.

[0014] Preferably, the gas inlet of the reactor is connected to the gas outlet of the preheating furnace via a pipe, and the gas inlet of the preheating furnace is connected to the gas outlet of the water vapor evaporator via a pipe. During the adsorption process, the water vapor evaporator and the preheating furnace can generate steam by heating water, providing heat to the adsorbent and allowing water vapor to enter. This process is closer to a real industrial scenario and helps to maintain the adsorbent within a certain temperature range, thereby improving the adsorption capacity and adsorption efficiency of the adsorbent.

[0015] Preferably, the air inlet end of the water vapor evaporator is equipped with an air inlet pipe, and the nitric oxide inlet, carbon dioxide inlet, nitrogen inlet and sulfur dioxide inlet are all connected to the air inlet pipe of the water vapor evaporator, so that the device can be supplied with multiple gases.

[0016] Beneficial effects

[0017] Compared with the prior art, the present invention provides a variable temperature adsorption-desorption device, which has the following beneficial effects:

[0018] 1. The temperature swing adsorption device, the water vapor evaporator and the preheating furnace can produce steam from the introduced water, which is loaded into the adsorption device together with the flue gas, the condenser added at the rear end can reduce the temperature of the water vapor, the gas-liquid separation tank can separate the water vapor and provide heat for the adsorbent, so that the adsorbent is kept within a certain temperature range, thereby the temperature can be controlled, the optimal adsorption temperature range can be maintained, the adsorption amount of the adsorbent to the adsorbate is increased, and the adsorption effect of the device is improved.

[0019] 2. The temperature swing adsorption device, the added nitrogen monoxide inlet, carbon dioxide inlet, nitrogen inlet and sulfur dioxide inlet can realize the simultaneous introduction of multiple gases, can interact with different sites on the surface of the adsorbent, thereby increasing the effective adsorption sites of the adsorbent, can effectively separate and remove various pollutants, and the calcium-based adsorbent in the adsorption device can adsorb sulfur dioxide and carbon dioxide, and the reaction rate of sulfur dioxide is higher than that of carbon dioxide. Therefore, desulfurization treatment can be performed preferentially, acid gas can be prevented from entering the device to cause corrosion, and the service life of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The figure is a structural schematic view of the utility model.

[0021] In the figure: 1, reaction furnace; 2, condenser; 3, gas-liquid separation tank; 4, preheating furnace; 5, water vapor evaporator; 6, nitrogen monoxide inlet; 7, carbon dioxide inlet; 8, nitrogen inlet; 9, sulfur dioxide inlet; 10, mass flow meter. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] The utility model provides a technical scheme, a temperature swing adsorption device, please refer to Figure 1 , including reaction furnace 1, the gas outlet end of reaction furnace 1 is equipped with condenser 2;

[0024] Gas-liquid separation tank 3 is arranged at the gas outlet end of condenser 2, and the gas inlet end of reaction furnace 1 is equipped with preheating furnace 4, and the gas inlet end of preheating furnace 4 is equipped with water vapor evaporator 5;

[0025] The water introduced can be vaporized by the water vapor evaporator 5 and the preheating furnace 4 to generate steam, which is loaded into the adsorption device together with the flue gas. The condenser 2 added at the rear end can reduce the temperature of the water vapor, and the gas-liquid separation tank 3 can separate the water vapor and provide heat for the adsorbent, so that the adsorbent can be kept within a certain temperature range, thereby controlling the temperature and maintaining the optimal adsorption temperature range, which can increase the adsorption capacity of the adsorbent for the adsorbate and improve the adsorption effect of the device.

[0026] The nitrogen monoxide inlet 6 is arranged at the gas inlet end of the water vapor evaporator 5. The water vapor evaporator 5 is also provided with a carbon dioxide inlet 7 at the gas inlet end. The surface of the water vapor evaporator 5 is provided with a nitrogen gas inlet 8. The surface of the water vapor evaporator 5 is also provided with a nitrogen gas and sulfur dioxide inlet 9. A mass flow meter 10 is installed between the nitrogen gas and sulfur dioxide inlet 9 and the water vapor evaporator 5. A mass flow meter 10 (MFC) is arranged after each gas inlet for precise control of the flue gas flow.

[0027] The added nitrogen monoxide inlet 6, carbon dioxide inlet 7, nitrogen gas inlet 8, and nitrogen gas and sulfur dioxide inlet 9 can simultaneously introduce multiple gases, which can interact with different sites on the surface of the adsorbent, thereby increasing the effective adsorption sites of the adsorbent and effectively separating and removing various pollutants. A mass flow meter 10 (MFC) is arranged after each gas inlet for precise control of the flue gas flow.

[0028] The gas outlet end of the reaction furnace 1 is connected to the gas inlet end of the condenser 2 through a pipeline. The gas outlet end of the condenser 2 is connected to the gas inlet end of the gas-liquid separation tank 3 through a pipeline. During the adsorption process, the condenser 2 can convert the water vapor in the flue gas from the gas phase to the liquid phase, which is convenient for subsequent collection and processing. By reducing the temperature of the adsorbate, the adsorption capacity of the adsorbate on the surface of the adsorbent can be enhanced, thereby improving the adsorption efficiency. During the adsorption stage, the gas-liquid mixture enters the gas-liquid separation tank 3, and the gas and liquid are separated by the difference in their densities under the action of gravity, with the liquid settling at the bottom of the tank and the gas being discharged from the top. The separated gas can be introduced into the subsequent adsorption unit for adsorption treatment, and the liquid can be further processed or recovered.

[0029] A flue gas outlet pipe is installed at the gas outlet end of the gas-liquid separation tank 3, through which the gas in the device can be discharged.

[0030] The gas inlet end of the reaction furnace 1 is connected to the gas outlet end of the preheating furnace 4 through a pipeline. The gas inlet end of the preheating furnace 4 is connected to the gas outlet end of the water vapor evaporator 5 through a pipeline. During the adsorption process, the water vapor evaporator 5 and the preheating furnace 4 can generate steam by heating water to provide heat for the adsorbent and load the water vapor. This process is closer to the actual industrial scene and helps to keep the adsorbent within a certain temperature range, thereby improving the adsorption capacity and efficiency of the adsorbent.

[0031] The water vapor evaporator 5 is provided with an air inlet pipe, and the nitrogen monoxide inlet 6, the carbon dioxide inlet 7, the nitrogen inlet 8 and the sulfur dioxide inlet 9 are connected to the air inlet pipe of the water vapor evaporator 5, so that the device can be connected to multiple gas inlets.

[0032] In the working process of the present application, first, in the adsorption process, the condenser 2 can convert the adsorbate from the gas phase to the liquid phase, which is convenient for subsequent collection and processing, and by reducing the temperature of the adsorbate, the adsorption capacity of the adsorbent on the surface is enhanced, thereby improving the adsorption efficiency; in the adsorption stage, the gas-liquid mixture enters the gas-liquid separation tank 3, and the gas and liquid are separated by the difference in density under the action of gravity, so that the liquid settles at the bottom of the tank and the gas is discharged from the top, thereby realizing gas-liquid separation; the separated gas can enter the subsequent adsorption unit for adsorption treatment, and the liquid can be further treated or recovered; then the water vapor evaporator 5 and the preheating furnace 4 can generate steam by heating water to provide heat for the adsorbent, so that the adsorbent is kept within a certain temperature range, thereby improving the adsorption capacity and efficiency of the adsorbent; the adsorbent is kept within a certain temperature range, so that the temperature can be controlled and the optimal adsorption temperature range can be maintained, thereby increasing the adsorption capacity of the adsorbent for pollutants and improving the adsorption effect of the device; finally, the nitrogen monoxide inlet 6, the carbon dioxide inlet 7, the nitrogen inlet 8 and the nitrogen and sulfur dioxide inlet 9 can simultaneously connect multiple gas inlets, interact with different sites on the surface of the adsorbent, thereby increasing the effective adsorption sites of the adsorbent, effectively separating and removing multiple pollutants, and the mass flow meter 10 can accurately control the flue gas flow.

[0033] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising", or any other variations thereof are intended to cover non-exclusive inclusions, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or device.

[0034] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A temperature swing adsorption device, characterized by, Include: The reaction furnace (1), the gas outlet end of the reaction furnace (1) is provided with condenser (2); Gas-liquid separation tank (3), provided in the gas outlet end of the condenser (2), the gas inlet end of the reaction furnace (1) is provided with preheating furnace (4), the gas inlet end of the preheating furnace (4) is provided with water vapor evaporator (5); Nitric oxide inlet (6), provided in the gas inlet end of the water vapor evaporator (5), the gas inlet end of the water vapor evaporator (5) is also provided with carbon dioxide inlet (7), the surface of the water vapor evaporator (5) is provided with nitrogen inlet (8), the surface of the water vapor evaporator (5) is also provided with sulfur dioxide inlet (9), the nitrogen and sulfur dioxide inlet (9) and water vapor evaporator (5) are installed with mass flowmeter (10).

2. The device of claim 1, wherein: The gas outlet end of the reaction furnace (1) is connected with the gas inlet end of the condenser (2) through pipeline, the gas outlet end of the condenser (2) is connected with the gas inlet end of the gas-liquid separation tank (3) through pipeline.

3. The device of claim 1, wherein: The gas outlet end of the gas-liquid separation tank (3) is installed with flue gas outlet pipe.

4. The device of claim 1, wherein: The gas inlet end of the reaction furnace (1) is connected with the gas outlet end of the preheating furnace (4) through pipeline, the gas inlet end of the preheating furnace (4) is connected with the gas outlet end of the water vapor evaporator (5) through pipeline.

5. The device of claim 1, wherein: The gas inlet end of the water vapor evaporator (5) is installed with inlet pipe, the nitric oxide inlet (6), carbon dioxide inlet (7), nitrogen inlet (8) and sulfur dioxide inlet (9) are connected with the inlet pipe of the water vapor evaporator (5).

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