CN117304993A - Chain plate type biogas desulfurization device and method - Google Patents
Chain plate type biogas desulfurization device and method Download PDFInfo
- Publication number
- CN117304993A CN117304993A CN202311319042.7A CN202311319042A CN117304993A CN 117304993 A CN117304993 A CN 117304993A CN 202311319042 A CN202311319042 A CN 202311319042A CN 117304993 A CN117304993 A CN 117304993A
- Authority
- CN
- China
- Prior art keywords
- desulfurizing agent
- desulfurization
- chain plate
- biogas
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 89
- 230000023556 desulfurization Effects 0.000 title claims abstract description 89
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 109
- 238000011069 regeneration method Methods 0.000 claims abstract description 33
- 230000008929 regeneration Effects 0.000 claims abstract description 32
- 230000033001 locomotion Effects 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 97
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 14
- 150000001875 compounds Chemical class 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 239000002808 molecular sieve Substances 0.000 claims description 3
- 229910052755 nonmetal Inorganic materials 0.000 claims description 3
- 239000004745 nonwoven fabric Substances 0.000 claims description 3
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 3
- 238000010926 purge Methods 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 22
- 229910052739 hydrogen Inorganic materials 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- 239000005751 Copper oxide Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- 229910000428 cobalt oxide Inorganic materials 0.000 description 1
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910000314 transition metal oxide Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
- C10L3/101—Removal of contaminants
- C10L3/102—Removal of contaminants of acid contaminants
- C10L3/103—Sulfur containing contaminants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/96—Regeneration, reactivation or recycling of reactants
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Sustainable Development (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention belongs to the field of environmental protection and renewable energy sources, and particularly relates to a chain plate type biogas desulfurization device and a method. A chain plate type biogas desulfurization apparatus comprises a biogas storage tank and a desulfurization system; the desulfurization system comprises a shell, a regeneration system and a desulfurizing agent chain plate, wherein the shell comprises an air inlet and an air outlet, and the air outlet of the biogas storage tank is communicated with the air inlet of the shell; the regeneration system is arranged outside the shell; the desulfurizing agent chain plate is in an annular motion state, and the motion path of the desulfurizing agent chain plate passes through the shell and the inside of the regeneration system. The desulfurization system in the chain plate type biogas desulfurization device provided by the invention ensures that the desulfurization efficiency is kept at a higher level for a long time through the desulfurizing agent chain plate and the regeneration system, and avoids the influence of desulfurization performance fluctuation on the quality of products; the chain plate type biogas desulfurization method provided by the invention can realize continuous desulfurization of biogas and online regeneration of desulfurizing agents, reduces the start and stop times of a unit, and improves the comprehensive efficiency of the device.
Description
Technical Field
The invention belongs to the field of environmental protection and renewable energy sources, and particularly relates to a chain plate type biogas desulfurization device and a method.
Background
With the continuous development of science and technology, the global demand for energy is gradually increasing, the reserves of fossil energy are limited, and the use of fossil energy can have a great negative effect on the global ecological environment. Therefore, the search for new energy sources with green and high efficiency has been an important issue on a global scale. Hydrogen is a well-known clean energy source, the only emissions of which are water, CO-free 2 And the emission of substances such as nitrogen oxides, heavy metals and the like is extremely low, so that the environmental pollution is extremely low. Hydrogen can be obtained by renewable energy sources such as solar energy, hydroelectric power generation and the like, can reduce the dependence on nonrenewable fossil fuels, and can play an important role in social and economic development.
In the process of desulfurizing marsh gas to produce hydrogen, the most commonly used desulfurizing agents at present are metals, noble metals, transition metal oxides and the like. The powdery desulfurizing agent is generally arranged in desulfurization equipment for use, and after a period of time, the desulfurizing agent is deactivated, the unit is closed to replace the desulfurizing agent, so that the time and the labor are wasted, and the efficiency is low. The desulfurization efficiency of the desulfurizing agent gradually decreases with the increase of the service time, resulting in non-uniform quality of the product. The device has low automation degree, and a large amount of manual intervention is needed in the processes of equipment start-stop, desulfurizing agent loading and unloading and regeneration.
Disclosure of Invention
The first object of the invention is to provide a link plate type biogas desulfurization apparatus which can keep desulfurization efficiency at a higher level for a long period of time, and avoid influence of desulfurization performance fluctuation on product quality.
A second object of the present invention is to provide a link-type biogas desulfurization method for biogas desulfurization using the link-type biogas desulfurization apparatus as described above.
The invention provides a chain plate type biogas desulfurization device, which comprises a biogas storage tank and a desulfurization system;
the desulfurization system comprises a shell, a regeneration system and a desulfurizing agent chain plate, wherein the shell comprises an air inlet and an air outlet, and the air outlet of the biogas storage tank is communicated with the air inlet of the shell;
the regeneration system is arranged outside the shell; the desulfurizing agent chain plate is in an annular motion state, and the motion path of the desulfurizing agent chain plate passes through the shell and the inside of the regeneration system.
Preferably, the desulfurizing agent chain plate comprises a chain plate, a chain plate rivet and a desulfurizing agent, wherein the desulfurizing agent is filled in the chain plate, and a plurality of the chain plates are connected by the chain plate rivet.
Further preferably, the desulfurizing agent is composed of one or more of metal and a compound thereof, nonmetal and a compound thereof, non-woven fabrics, carrier glass fibers, molecular sieves, activated carbon and carbon fibers.
Preferably, the desulfurization system comprises first roller sets, each of which comprises two first roller sets, wherein one of the first roller sets is positioned in the shell, and the other roller sets are positioned outside the shell;
the desulfurizing agent chain plate is meshed with the first gear roller.
Preferably, the desulfurization system further comprises a second gear roller and a flexible roller, the second gear roller and the flexible roller are oppositely arranged, and the second gear roller and the flexible roller are positioned on the side wall of the shell;
the second gear roller is meshed with the desulfurizing agent chain plate, and the flexible roller is attached to the desulfurizing agent chain plate.
Preferably, the desulfurization system further comprises a desulfurizing agent replacement chamber, the desulfurizing agent replacement chamber is arranged on the desulfurizing agent chain plate, and the desulfurizing agent replacement chamber is arranged outside the shell.
Preferably, the desulfurization system includes at least one set of the desulfurizing agent link plates.
Preferably, the chain plate type biogas desulfurization apparatus further comprises a blower, an induced draft fan and a purifying gas tank;
the gas outlet of the biogas storage tank is connected with the inlet of the air feeder, the outlet of the air feeder is connected with the gas inlet of the desulfurization system, the gas outlet of the desulfurization system is connected with the gas inlet of the induced draft fan, and the gas outlet of the induced draft fan is connected with the purifying gas tank.
The invention also provides a chain plate type biogas desulfurization method, which adopts the chain plate type biogas desulfurization device, and comprises the following steps:
s1: delivering the gas in the biogas storage tank into a desulfurization system for desulfurization by a blower, and delivering the desulfurized gas into a purifying gas tank by a draught fan for storage;
s2: the chain plate desulfurizing agent is driven by the continuously rotating gear roller to pass through a regeneration system and a chain plate desulfurizing agent replacement chamber;
s3: the chain plate desulfurizing agent replacement chamber removes the seriously deactivated chain plate desulfurizing agent, pours out the deactivated desulfurizing agent, fills the chain plate with new desulfurizing agent, and is used after reinstallation.
The beneficial effects are that:
the desulfurization system in the chain plate type biogas desulfurization device provided by the invention ensures that the desulfurization efficiency is kept at a higher level for a long time through the desulfurizing agent chain plate and the regeneration system, and avoids the influence of desulfurization performance fluctuation on the quality of products;
the chain plate type biogas desulfurization method provided by the invention can realize continuous desulfurization of biogas and online regeneration of desulfurizing agents, reduces the start and stop times of a unit, and improves the comprehensive efficiency of the device.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of a link plate type biogas desulfurization apparatus of the present invention;
FIG. 2 is a schematic structural view of a desulfurizing agent link plate;
FIG. 3 is a schematic structural view of a link plate rivet and link plate;
fig. 4 is a schematic structural view of the link plate.
Reference numerals illustrate:
1: a biogas storage tank; 2: a blower; 3: a desulfurization system; 31: a housing; 32: an air inlet; 33: an air outlet; 34: a desulfurizing agent chain plate; 341: a link plate rivet; 342: a link plate; 35: a first roller gear; 36: a flexible roller; 37: a regeneration system; 38: a desulfurizing agent replacement chamber; 39: a second geared roller; 4: an induced draft fan; 5: purifying the gas tank.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. Furthermore, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1 to 4, the present invention provides a link plate type biogas desulfurization apparatus comprising a biogas storage tank 1 and a desulfurization system 3. The desulfurization system 3 comprises a shell 31 and a desulfurizing agent chain plate 34, the shell 31 comprises an air inlet 32 and an air outlet 33, and the air outlet of the biogas storage tank 1 is communicated with the air inlet 32 of the shell 31. The desulfurizing agent link plate 34 is in an annular movement state, and the movement path of the desulfurizing agent link plate 34 passes through the inside of the casing 31. The desulfurization system 3 further includes a regeneration system 37, the desulfurizing agent link plate 34 passes through the regeneration system 37, and the regeneration system 37 is disposed outside the housing 31.
The beneficial effects of the invention are as follows:
(1) The product quality is stable: the desulfurization efficiency of the desulfurizing agent link plate 34 is maintained at a high level for a long period of time, and the influence of fluctuation of desulfurization performance on the product quality is avoided.
(2) The device has less start and stop times: the method can realize continuous desulfurization of the biogas and online regeneration of the desulfurizing agent, reduce the start-stop times of a unit and improve the comprehensive efficiency of the device.
(3) The automation degree of the device is high: the desulfurizing agent desulfurization and regeneration are continuously and automatically carried out, and the manual intervention in the desulfurizing agent loading and unloading and regeneration process is less.
In particular, the regeneration system may employH 2 、O 2 、H 2 O、SO 2 And the like as a regenerating agent at a certain temperature. As an example, the invention patent with publication number of CN108421400B discloses a methane dry desulfurization device capable of on-line regeneration and a desulfurization method thereof. The device is through the air compressor machine through air inlet pipe injection air, utilize oxygen in the air to the desulfurizing agent that has reacted to regenerate, the air flowmeter is used for measuring the air input, the electric regulating valve is used for adjusting the air input, online thermometer is with survey tower wall temperature, when the temperature is higher than 50 ℃, the temperature sensor that online thermometer was prepared sends 4-20mA signal and gives the PLC controller, the PLC controller controls solenoid valve and closes, reduce the air input, delay regeneration rate, when the temperature is lower, electric regulating valve aperture increases, accelerate regeneration rate, this temperature can set up according to the scene condition, the gas of discharging is introduced into sodium carbonate absorption liquid and is absorbed the processing. The above patent is a regeneration method of a biogas dry desulfurization tower, in which the desulfurization tower is replaced with a regeneration system in which air is caused to vertically flow through a desulfurizing agent link plate, and regeneration of the desulfurizing agent can also be achieved.
The housing 31 has functions of heat preservation and heating. In this embodiment, the maximum heating temperature of the housing 31 may reach 350 ℃.
The desulfurizing agent link plate 34 includes a link plate 342, a link plate rivet 341, and a desulfurizing agent filled inside the link plate 342, and a plurality of link plates 342 are connected by the link plate rivet 341.
The desulfurizing agent consists of one or more of metal and its compound, nonmetal and its compound, non-woven fabric, carrier glass fiber, molecular sieve, active carbon and carbon fiber.
The desulfurization system 3 includes first sets of spur rollers, each first set of spur rollers 35 including two first spur rollers 35, one of the first spur rollers 35 being located within the housing 31 and the other first spur roller 35 being located outside the housing 31, the desulfurizing agent link plate 34 being engaged with the two first spur rollers 35. The first roller gear 35 outside the housing 31 is connected to an external motor, and is rotatable by the external motor.
The desulfurization system 3 further includes a second spur roller 39 and a flexible roller 36, the second spur roller 39 and the flexible roller 36 being disposed opposite each other, the second spur roller 39 and the flexible roller 36 being located on a side wall of the housing 31. The second pinion roller 39 engages the desulfurizing agent link plate 34 and the flexible roller 36 engages the desulfurizing agent link plate 34.
The desulfurization system 3 further includes a regeneration system 37, the desulfurizing agent link plate 34 passes through the regeneration system 37, and the regeneration system 37 is disposed outside the housing 31.
The desulfurization system 3 further includes a desulfurizing agent replacement chamber 38, the desulfurizing agent replacement chamber 38 being provided on the desulfurizing agent link plate 34, the desulfurizing agent replacement chamber 38 being provided outside the housing 31. In the present embodiment, in the desulfurizing agent exchange chamber 38, the severely deactivated desulfurizing agent link plate 34 can be removed, the deactivated desulfurizing agent can be poured out, a new desulfurizing agent can be charged, and then the new desulfurizing agent link plate 34 can be formed.
The desulfurization system 3 includes at least one set of desulfurizing agent link plates 34. As shown in fig. 1, the desulfurization system 3 in the present embodiment includes two sets of desulfurizing agent link plates 34, and the two sets of desulfurizing agent link plates 34 are respectively located on the upper side and the lower side of the casing 31.
The chain plate type biogas desulfurization device also comprises a blower 2, a draught fan 4 and a purifying gas tank 5. The gas outlet of the biogas storage tank 1 is connected with the inlet of the blower 2, the outlet of the blower 2 is connected with the gas inlet 32 of the desulfurization system 3, the gas outlet 33 of the desulfurization system 3 is connected with the gas inlet of the induced draft fan 4, and the gas outlet of the induced draft fan 4 is connected with the purifying gas tank 5.
The invention also provides a chain plate type biogas desulfurization method, which adopts the chain plate type biogas desulfurization device of the invention, and comprises the following steps:
s1: the gas in the biogas storage tank 1 is sent into a desulfurization system 3 for desulfurization by a blower 2, and the desulfurized gas is sent into a purifying gas tank 5 for storage by a draught fan 4;
s2: the desulfurizing agent chain plate 34 passes through a regenerating system 37 and a desulfurizing agent replacement chamber 38 under the drive of a continuously rotating first gear roller 35;
s3: the devulcanizer changing chamber 38 removes the severely deactivated devulcanizer from the devulcanizer flight 34, pours out the deactivated devulcanizer and fills the flight 342 with new devulcanizer for use after reinstallation.
Example 1
The desulfurizing agent link plate 34 is manufactured by filling zinc oxide and iron oxide in the link plate 342. Setting the temperature of the shell 31 at 150 ℃ and H in methane 2 The S content was 6000ppm. The desulfurizing agent chain plate 34 is arranged in 6 layers around the flexible roller 36 in the shell 31, and H is arranged at the air outlet 33 of the desulfurizing system 3 during initial operation 2 S content is 11ppm, and the desulfurizing agent chain plate 34 is arranged at the position of the air outlet 33 of the desulfurizing system 3 after continuous operation for 300H 2 S content was 20ppm.
Example 2
The desulfurizing agent link plate 34 is manufactured by filling copper oxide and calcium oxide in the link plate 342. Setting the temperature of the shell 31 to 300 ℃ and H in methane 2 The S content was 5000ppm. The desulfurizing agent chain plate 34 is arranged in 8 layers around the flexible roller 36 in the shell 31, and H is arranged at the air outlet 33 of the desulfurizing system 3 during initial operation 2 The S content is 10ppm, and the desulfurization efficiency of the desulfurizing agent chain plate 34 still reaches 96% after continuous operation for 500 hours.
Example 3
The desulfurizing agent link plate 34 is manufactured by filling the link plate 342 with cerium oxide and cobalt oxide. Setting the temperature of the shell 31 at 200 ℃ and H in methane 2 The S content was 2000ppm. The desulfurizing agent chain plate 34 is arranged in 6 layers around the flexible roller 36 in the shell 31, and H is arranged at the air outlet 33 of the desulfurizing system 3 during initial operation 2 S content is 9ppm, and the desulfurizing agent chain plate 34 is operated continuously for 400 hours and then H is arranged at the air outlet 33 of the desulfurizing system 3 2 S content was 20ppm.
Example 4
The desulfurizing agent link plate 34 is manufactured by filling the link plate 342 with manganese oxide and calcium oxide. Setting the temperature of the shell 31 at 250 ℃ and H in methane 2 The S content was 5000ppm. The desulfurizing agent chain plate 34 is arranged in 8 layers around the flexible roller 36 in the shell 31, and H is arranged at the air outlet 33 of the desulfurizing system 3 during initial operation 2 S content is 10ppm, and the desulfurizing agent chain plate 34 is H at the air outlet 33 of the desulfurizing system 3 after continuously running for 800 hours 2 S content was 20ppm.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (9)
1. The chain plate type biogas desulfurization apparatus is characterized by comprising a biogas storage tank and a desulfurization system;
the desulfurization system comprises a shell, a regeneration system and a desulfurizing agent chain plate, wherein the shell comprises an air inlet and an air outlet, and the air outlet of the biogas storage tank is communicated with the air inlet of the shell;
the regeneration system is arranged outside the shell; the desulfurizing agent chain plate is in an annular motion state, and the motion path of the desulfurizing agent chain plate passes through the shell and the inside of the regeneration system.
2. The link plate type biogas desulfurization apparatus of claim 1, wherein the desulfurizing agent link plate comprises a link plate, a link plate rivet, and a desulfurizing agent, the desulfurizing agent is filled inside the link plate, and a plurality of the link plates are connected by the link plate rivet.
3. The chain-plate biogas desulfurization apparatus of claim 2, wherein the desulfurizing agent is composed of one or more of metal and its compound, nonmetal and its compound, non-woven fabrics, carrier glass fiber, molecular sieve, activated carbon, and carbon fiber.
4. The link plate biogas desulfurization apparatus of claim 1, wherein the desulfurization system comprises first sets of pinion rollers, each first set of pinion rollers comprising two first pinion rollers, one of the first pinion rollers being located within the housing and the other first pinion roller being located outside the housing;
the desulfurizing agent chain plate is meshed with the first gear roller.
5. The link plate type biogas desulfurization apparatus of claim 1, wherein the desulfurization system further comprises a second spur roller and a flexible roller, the second spur roller and the flexible roller being disposed opposite each other, the second spur roller and the flexible roller being located on a side wall of the housing;
the second gear roller is meshed with the desulfurizing agent chain plate, and the flexible roller is attached to the desulfurizing agent chain plate.
6. The link plate biogas desulfurization apparatus of claim 1, wherein the desulfurization system further comprises a desulfurizing agent replacement chamber disposed on the desulfurizing agent link plate, the desulfurizing agent replacement chamber disposed outside the housing.
7. The link plate biogas desulfurization apparatus of claim 1, wherein the desulfurization system comprises at least one set of the desulfurization agent link plates.
8. The link plate type biogas desulfurization apparatus of claim 1, further comprising a blower, an induced draft fan, and a purge gas tank;
the gas outlet of the biogas storage tank is connected with the inlet of the air feeder, the outlet of the air feeder is connected with the gas inlet of the desulfurization system, the gas outlet of the desulfurization system is connected with the gas inlet of the induced draft fan, and the gas outlet of the induced draft fan is connected with the purifying gas tank.
9. A method for desulfurizing biogas by using the chain-plate biogas desulfurization apparatus according to any one of claims 1 to 8, comprising the steps of:
s1: delivering the gas in the biogas storage tank into a desulfurization system for desulfurization by a blower, and delivering the desulfurized gas into a purifying gas tank by a draught fan for storage;
s2: the chain plate desulfurizing agent is driven by the continuously rotating gear roller to pass through a regeneration system and a chain plate desulfurizing agent replacement chamber;
s3: the chain plate desulfurizing agent replacement chamber removes the seriously deactivated chain plate desulfurizing agent, pours out the deactivated desulfurizing agent, fills the chain plate with new desulfurizing agent, and is used after reinstallation.
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