CN211837098U - Landfill gas desulfurization treatment device - Google Patents
Landfill gas desulfurization treatment device Download PDFInfo
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- CN211837098U CN211837098U CN201922495507.XU CN201922495507U CN211837098U CN 211837098 U CN211837098 U CN 211837098U CN 201922495507 U CN201922495507 U CN 201922495507U CN 211837098 U CN211837098 U CN 211837098U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model provides a landfill gas desulfurization treatment device, which comprises an adsorption tower, a heater, an air inlet pipe fitting, an air outlet pipe fitting, and a pressure gauge, a thermometer and a valve which are connected on the air inlet pipe fitting, the air outlet pipe fitting and the adsorption tower, wherein the valve is divided into an adjusting valve, a program control valve and a stop valve; the utility model provides high desulfurizer life has reduced the use cost of desulfurizer, and the maintenance cost of equipment, improve equipment availability factor's landfill gas desulfurization treatment device.
Description
Technical Field
The utility model relates to a landfill gas processing field, in particular to landfill gas desulfurization treatment device.
Background
The landfill gas is a mixed gas which is generated by decomposing domestic garbage by microorganisms in a landfill site after the domestic garbage is filled, wherein the mixed gas takes methane and carbon dioxide as main components, contains a small amount of substances such as ammonia, carbon monoxide, hydrogen sulfide, various volatile organic compounds and the like, and can generate odor and air pollution; the landfill gas also contains trace ammonia, carbon monoxide, hydrogen sulfide, various volatile organic compounds and other substances, so that the problems of odor and air pollution can be caused; the existing desulfurizer commonly used in the landfill gas desulfurization device is an iron oxide desulfurizer or the desulfurizer is matched with an active carbon adsorbent for use, and the service life of the desulfurizer used as the iron oxide desulfurizer in the chemical industry is about 1 to 2 years; therefore, the desulfurizer needs to be replaced every year in the landfill gas desulfurization, the specification of desulfurization equipment in a landfill site is large, 600 tons of adsorbents need to be filled in each tower basically, and if a multi-tower combined tower desulfurization device is adopted, 1800 tons of adsorbents need to be replaced every year or two years, so that the use cost of the desulfurizer and the maintenance cost of the equipment are increased; the filling of the desulfurizer wastes time, so that the working efficiency of the equipment is greatly reduced; in addition, for improve equipment's work efficiency, adopt more adsorption tower combination sweetener, will cause to increase more costs, need extravagant bigger area moreover, for this reason the utility model provides a can improve desulfurizer life, reduce desulfurizer use cost's landfill gas desulfurization processing apparatus, reduce area when reducing equipment specification, improve equipment work efficiency.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a landfill gas desulfurization treatment device, which comprises an adsorption tower, a heater, an air inlet pipe fitting, an air outlet pipe fitting, and a pressure gauge, a thermometer and a valve which are connected with the air inlet pipe fitting, the air outlet pipe fitting and the adsorption tower, wherein the valve is divided into an adjusting valve, a program control valve and a stop valve; the method is characterized in that the adsorption tower is divided into an adsorption tower A, an adsorption tower B and an adsorption tower C, the adsorption tower A, the adsorption tower B and the adsorption tower C alternately perform adsorption and desorption, and desulfurization adsorbents with adsorption capacity of more than or equal to 60 are filled in the adsorption tower A, the adsorption tower B and the adsorption tower C.
Preferably, the air inlet pipe fitting is divided into a raw material air inlet pipe, an air inlet pipe, a nitrogen inlet pipe and a purified gas inlet pipe; the pipe fitting of giving vent to anger divide into and purifies the gas outlet duct and desorb the gas outlet duct, raw materials intake pipe, purification gas outlet duct and desorb the gas outlet duct and be connected with adsorption tower A, adsorption tower B, adsorption tower C, the heater is connected on with purifying the gas outlet duct.
Preferably, the nitrogen inlet pipe is communicated with the purified gas outlet pipe, the adsorption tower A, the adsorption tower B, the adsorption tower C, the heater and the desorbed gas outlet pipe through the raw material inlet pipe and the purified gas inlet pipe.
Preferably, the adsorption tower A, the adsorption tower B and the adsorption tower C are provided with temperature transmitters, and the purified gas outlet pipe is provided with a pressure transmitter.
Preferably, the product gas inlet pipe is connected with the purified gas outlet pipe; and a regulating valve and a stop valve are arranged between the product gas inlet pipe and the purified gas outlet pipe.
Preferably, the raw material inlet pipe, the air inlet pipe, the nitrogen inlet pipe, the purified gas outlet pipe and the desorbed gas outlet pipe are provided with program control valves.
Preferably, the purified gas outlet pipe is provided with a temperature display meter and a pressure display meter.
A desulfurization method of landfill gas is characterized by comprising the following steps: the method comprises the following steps:
the first step is as follows: opening a program control valve and a stop valve on a nitrogen inlet pipe, introducing nitrogen into the adsorption tower A, the adsorption tower B, the adsorption tower C, the heater, a purified gas outlet pipe, a desorbed gas outlet pipe and a valve from a raw material inlet pipe and a purified gas inlet pipe, and purging to take away impurities;
secondly, closing the program control valve and the stop valve on the nitrogen gas inlet pipe, opening the program control valve on the raw material gas inlet pipe, enabling the raw material gas subjected to free water removal to enter an adsorption tower A in an adsorption state from the bottom, adsorbing the sulfur-containing components on an adsorption bed consisting of an adsorbent in the adsorption process, and discharging the unadsorbed gas out of the product gas outlet pipe;
thirdly, when the adsorption of the adsorption tower A is saturated, desorption is started, and the adsorption tower B adsorbs the substances while the adsorption tower A desorbs the substances; and after the adsorption of the adsorption tower B is saturated, desorption is started, and the adsorption tower A, the adsorption tower B and the adsorption tower C alternately perform adsorption and desorption, so that uninterrupted adsorption and desorption are achieved, and the working efficiency is improved.
A landfill gas desulfurization treatment method, wherein the desorption step comprises the following steps:
step one, after adsorption saturation of an adsorption tower A, program control valves on a raw material inlet pipe and a finished product gas outlet pipe which are connected with the adsorption tower A are closed, program control valves on a raw material inlet pipe and a finished product gas outlet pipe which are connected with an adsorption tower B are opened, and raw material gas enters the adsorption tower B to start adsorption desulfurization;
secondly, heating the adsorption tower; the method comprises the following steps that a regulating valve and a stop valve which are installed between a product gas inlet pipe and a purified gas outlet pipe are opened, program-controlled valves on the product gas inlet pipe and a desorption gas outlet pipe which are connected with an adsorption tower A are opened, the product gas enters a heater through the product gas inlet pipe after being subjected to pressure regulation by the regulating valve and is heated to 160-300 ℃, the heated product gas enters the product gas inlet pipe through the top of the adsorption tower A and is heated and swept to an adsorbent inside, sulfur adsorbed by the adsorbent is desorbed in a high-temperature state, and the desorption gas is discharged through the desorption gas outlet pipe and is discharged and emptied after desulfurization treatment;
thirdly, cooling the adsorption tower; firstly, the heater is turned off, the product gas continuously enters from the top of the adsorption tower A to cool and blow the adsorbent inside, and the adsorbent is slowly cooled, so that the desorption of the adsorption tower A is finished after the temperature in the adsorption tower A is reduced to the normal temperature; thus, the adsorption tower A completes the complete cycle process and waits for the next adsorption cycle; thereby completing the desorption step of the adsorption column B and the adsorption column C.
The utility model provides high desulfurizer life has reduced the use cost of desulfurizer, and the maintenance cost of equipment, improve equipment availability factor's landfill gas desulfurization treatment device.
[ description of the drawings ]
Fig. 1 is a schematic view of the present invention.
Detailed Description
Referring to fig. 1, the utility model provides a landfill gas desulfurization treatment device, which comprises an adsorption tower, a heater 1, an air inlet pipe fitting, an air outlet pipe fitting, and a pressure gauge, a thermometer and a valve which are connected with the air inlet pipe fitting, the air outlet pipe fitting and the adsorption tower, wherein the valve is divided into a regulating valve 4, a program control valve 5 and a stop valve 6; the method is characterized in that the adsorption tower is divided into an adsorption tower A2, an adsorption tower B21 and an adsorption tower C22, the adsorption tower A2, the adsorption tower B21 and the adsorption tower C22 alternately carry out adsorption and desorption, and the adsorption tower A2, the adsorption tower B21 and the adsorption tower C22 are filled with desulfurization adsorbents with adsorption capacity of more than or equal to 60; the air inlet pipe fitting is divided into a raw material air inlet pipe 7, an air inlet pipe 8, a nitrogen inlet pipe 9 and a purified gas inlet pipe 10; the gas outlet pipe fitting is divided into a purified gas outlet pipe 11 and a desorbed gas outlet pipe 12, the raw material gas inlet pipe 7, the purified gas outlet pipe 11 and the desorbed gas outlet pipe 12 are connected with an adsorption tower A2, an adsorption tower B21 and an adsorption tower C22, and the heater 1 is connected with the purified gas outlet pipe 11; the nitrogen gas inlet pipe 9 is communicated with a purified gas outlet pipe 11, an adsorption tower A2, an adsorption tower B21, an adsorption tower C22, a heater 1 and a desorbed gas outlet pipe 12 through a raw material inlet pipe 7 and a purified gas inlet pipe 10; temperature transmitters 13 are arranged on the adsorption tower A2, the adsorption tower B21 and the adsorption tower C22, and a pressure transmitter 14 is arranged on the purified gas outlet pipe 11; the purified gas inlet pipe 10 is connected with the purified gas outlet pipe 11; an adjusting valve 4 and a stop valve 6 are arranged between the purified gas inlet pipe 10 and the purified gas outlet pipe 11; the raw material inlet pipe 7, the air inlet pipe 8, the nitrogen inlet pipe 9, the purified gas inlet pipe 10, the purified gas outlet pipe 11 and the desorption gas outlet pipe 12 are provided with a program control valve 5; and a temperature display meter 15 and a pressure display meter 16 are arranged on the purified gas outlet pipe 11.
A desulfurization method of landfill gas is characterized by comprising the following steps: the method comprises the following steps:
the first step is as follows: opening a program control valve and a stop valve on a nitrogen inlet pipe, introducing nitrogen into the adsorption tower A, the adsorption tower B, the adsorption tower C, the heater, a purified gas outlet pipe, a desorbed gas outlet pipe and a valve from a raw material inlet pipe and a purified gas inlet pipe, and purging to take away impurities;
secondly, closing the program control valve and the stop valve on the nitrogen gas inlet pipe, opening the program control valve on the raw material gas inlet pipe, enabling the raw material gas subjected to free water removal to enter an adsorption tower A in an adsorption state from the bottom, adsorbing the sulfur-containing components on an adsorption bed consisting of an adsorbent in the adsorption process, and discharging the unadsorbed gas out of the product gas outlet pipe;
thirdly, when the adsorption of the adsorption tower A is saturated, desorption is started, and the adsorption tower B adsorbs the substances while the adsorption tower A desorbs the substances; and after the adsorption of the adsorption tower B is saturated, desorption is started, and the adsorption tower A, the adsorption tower B and the adsorption tower C alternately perform adsorption and desorption, so that uninterrupted adsorption and desorption are achieved, and the working efficiency is improved.
A landfill gas desulfurization treatment method, wherein the desorption step comprises the following steps:
step one, after adsorption saturation of an adsorption tower A, program control valves on a raw material inlet pipe and a finished product gas outlet pipe which are connected with the adsorption tower A are closed, program control valves on a raw material inlet pipe and a finished product gas outlet pipe which are connected with an adsorption tower B are opened, and raw material gas enters the adsorption tower B to start adsorption desulfurization;
secondly, heating the adsorption tower A; the method comprises the following steps that a regulating valve and a stop valve which are installed between a product gas inlet pipe and a purified gas outlet pipe are opened, program-controlled valves on the product gas inlet pipe and a desorption gas outlet pipe which are connected with an adsorption tower A are opened, the product gas enters a heater through the product gas inlet pipe after being subjected to pressure regulation by the regulating valve and is heated to 160-300 ℃, the heated product gas enters the product gas inlet pipe through the top of the adsorption tower A and is heated and swept to an adsorbent inside, sulfur adsorbed by the adsorbent is desorbed in a high-temperature state, and the desorption gas is discharged through the desorption gas outlet pipe and is discharged and emptied after desulfurization treatment;
thirdly, cooling the adsorption tower; firstly, the heater is turned off, the product gas continuously enters from the top of the adsorption tower A to cool and blow the adsorbent inside, and the adsorbent is slowly cooled, so that the desorption of the adsorption tower A is finished after the temperature in the adsorption tower A is reduced to the normal temperature; thus, the adsorption tower A completes the complete cycle process and waits for the next adsorption cycle; the desorption step of the adsorption column B and the adsorption column C is completed in this cycle.
The utility model discloses a through the combination of adopting adsorbent that adsorption capacity is more than or equal to 60 and temperature swing adsorption technology, make the desulfurization adsorbent in the adsorption tower can the repeated regeneration adsorb, consequently reach and need not to change once the desulfurization adsorbent a year or two years, thereby saved the use cost of adsorbent and the maintenance cost of equipment; compared with the use of an iron oxide desulfurizer in the adsorption towers with the same specification, the service life of the adsorbent is prolonged by 4 times, the dosage of the desulfurization adsorbent in each tower can be reduced by 3 times every year, and the adsorbent is filled into the adsorption towers and is filled in a unit of ton; under the condition of prolonging the service life by 4 times, the use amount of the iron oxide desulfurizer can be reduced; compared with the use of an iron oxide desulfurizer, the cost of the adsorbent and the maintenance cost of the equipment are greatly reduced, and in addition, the adsorbent does not need to be replaced every 1 to 2 years, so that the time cost for replacing the adsorbent is saved, the working efficiency of the equipment is not delayed, and the desulfurization working efficiency of the equipment can be improved; moreover, the utility model does not need to increase the floor area of the equipment to increase the matching work of more adsorption towers in order to improve the working efficiency of the equipment, and the cost of the adsorbent can be increased by increasing the floor area of the equipment to increase more adsorption towers; therefore the utility model discloses the problem that current main equipment account for the ground big has still been solved, and the problem that work efficiency is low.
The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.
Claims (7)
1. The landfill gas desulfurization treatment device comprises an adsorption tower, a heater, an air inlet pipe fitting, an air outlet pipe fitting, a pressure gauge, a thermometer and a valve, wherein the pressure gauge, the thermometer and the valve are connected to the air inlet pipe fitting, the air outlet pipe fitting and the adsorption tower; the method is characterized in that the adsorption tower is divided into an adsorption tower A, an adsorption tower B and an adsorption tower C, the adsorption tower A, the adsorption tower B and the adsorption tower C alternately perform adsorption and desorption, and desulfurization adsorbents with adsorption capacity of more than or equal to 60 are filled in the adsorption tower A, the adsorption tower B and the adsorption tower C.
2. The landfill gas desulfurization treatment device of claim 1, wherein: the air inlet pipe fitting is divided into a raw material air inlet pipe, an air inlet pipe, a nitrogen inlet pipe and a purified gas inlet pipe; the pipe fitting of giving vent to anger divide into and purifies the gas outlet duct and desorb the gas outlet duct, raw materials intake pipe, purification gas outlet duct and desorb the gas outlet duct and be connected with adsorption tower A, adsorption tower B, adsorption tower C, the heater is connected with purifying the gas outlet duct.
3. The landfill gas desulfurization treatment device of claim 2, wherein: the nitrogen gas intake pipe pass through raw materials intake pipe and purification gas intake pipe and purify gas outlet duct, adsorption tower A, adsorption tower B, adsorption tower C, heater, desorption gas outlet duct intercommunication.
4. The landfill gas desulfurization treatment device of claim 2 or 3, wherein: adsorption tower A, adsorption tower B, adsorption tower C on install temperature transmitter, install pressure transmitter on the purified gas outlet duct.
5. The landfill gas desulfurization treatment device of claim 3, wherein: the purified gas inlet pipe is connected with the purified gas outlet pipe; and an adjusting valve and a stop valve are arranged between the purified gas inlet pipe and the purified gas outlet pipe.
6. The landfill gas desulfurization treatment device of claim 2, wherein: the raw material intake pipe, the air intake pipe, the nitrogen intake pipe, the purified gas outlet pipe and the desorption gas outlet pipe are provided with a program control valve.
7. The landfill gas desulfurization treatment device of claim 6, wherein: and a temperature display meter and a pressure display meter are arranged on the purified gas outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922495507.XU CN211837098U (en) | 2019-12-31 | 2019-12-31 | Landfill gas desulfurization treatment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922495507.XU CN211837098U (en) | 2019-12-31 | 2019-12-31 | Landfill gas desulfurization treatment device |
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| Publication Number | Publication Date |
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| CN211837098U true CN211837098U (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922495507.XU Active CN211837098U (en) | 2019-12-31 | 2019-12-31 | Landfill gas desulfurization treatment device |
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- 2019-12-31 CN CN201922495507.XU patent/CN211837098U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Landfill gas desulfurization treatment device Effective date of registration: 20220424 Granted publication date: 20201103 Pledgee: Hangzhou High-tech Financing Guarantee Co.,Ltd. Pledgor: HANGZHOU PERFECT PURITY INSTALLATION Co.,Ltd. Registration number: Y2022330000589 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230710 Granted publication date: 20201103 Pledgee: Hangzhou High-tech Financing Guarantee Co.,Ltd. Pledgor: HANGZHOU PERFECT PURITY INSTALLATION Co.,Ltd. Registration number: Y2022330000589 |