CN105950240A - Marsh gas purifying system and purifying method thereof - Google Patents
Marsh gas purifying system and purifying method thereof Download PDFInfo
- Publication number
- CN105950240A CN105950240A CN201610432356.1A CN201610432356A CN105950240A CN 105950240 A CN105950240 A CN 105950240A CN 201610432356 A CN201610432356 A CN 201610432356A CN 105950240 A CN105950240 A CN 105950240A
- Authority
- CN
- China
- Prior art keywords
- biogas
- desulfurizing tower
- valve
- supervisor
- gas
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- 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.)
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Classifications
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- 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
- C10L3/106—Removal of contaminants of water
-
- 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
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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention discloses a marsh gas purifying system and a purifying method thereof. The marsh gas purifying system comprises a gas-water separator and a plurality of desulfurizing towers. The marsh gas purifying system is characterized in that the multiple desulfurizing towers are arranged in parallel, the gas inlet of the gas-water separator is connected with a marsh gas fermentation device through a main marsh gas pipe, one end of the desulfurizing towers which are arranged in parallel is connected with the gas outlet of the gas-water separator through the marsh gas main pipe, and the other end of the desulfurizing towers is connected with a gas storage device through the marsh gas main pipe. By means of the marsh gas purifying system, people can supplement water to a positive and negative pressure protector easily, pressure in a marsh gas fermentation tank keeps constant, fracture of the marsh gas fermentation tank is prevented, and dewatering is carried out firstly through the gas-water separator, which facilitates marsh gas desulfurizing; the desulfurizing towers are connected in parallel, online desulfurizing agent replacing can be carried out by adjusting different valves.
Description
Technical field
The present invention relates to a kind of methane purifying system and purification method thereof, belong to biogas production technical field.
Background technology
At present, the big-and-middle-sized biogas engineering of domestic and international scale is increasing, and wherein marsh gas purifying is the important of biogas engineering
One ring, marsh gas purifying is mainly concerned with the water in removing biogas and hydrogen sulfide.In the existing biogas engineering of China, major part is all
It is to use moisture trap dehydration, chemical desulfurization tower depriving hydrogen sulphide.Such as, China Patent Publication No. 202756902U discloses one
Planting marsh gas purifying compressed filling device, publication date is 2013-02-27, and it includes: moisture trap, passes through with moisture trap
The desulfurizing tower that pipeline is connected, be connected by pipeline with desulfurizing tower is High-pressure Marsh Gas compressor, distinguishes with High-pressure Marsh Gas compressor
By pipeline be connected high-pressure gas-liquid separator and molecular sieve high pressure exsiccator, described high-pressure gas-liquid separator by pipeline with
Carbon dioxide steel cylinder is connected, and described molecular sieve high pressure exsiccator is connected with gas cylinder by pipeline.
But, owing to design and construction are unreasonable or manage not in place, cause methane purifying system to become ornaments, not in time
Draining and change desulfurizing agent, or change desulfurizing agent and cause marsh-gas fermentation tank to damage and fire etc., affect biogas engineering safety and stability
Run.
Summary of the invention
It is an object of the invention to the problems referred to above overcoming prior art to exist, it is provided that a kind of methane purifying system and clean
Change method.The present invention is easy for workers to positive/negative pressure protector moisturizing, keeps biogas fermentation pressure inside the tank constant, prevents biogas fermentation
Tank ruptures, and first passes through moisture trap dehydration, is conducive to next step biogas desulfurization, and desulfurizing tower uses parallel way, by regulation
Different valves can carry out on-line desulphurization agent replacing.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of methane purifying system, including moisture trap and desulfurizing tower, it is characterised in that: described desulfurizing tower is multiple, multiple
Desulfurizing tower is arranged in parallel, and the air inlet of moisture trap connects biogas fermentation device by biogas supervisor, multiple is arranged in parallel
Desulfurizing tower one end is connected with the gas outlet of moisture trap by biogas supervisor, and the other end is connected to gas storage by biogas supervisor and fills
Put.
It is provided with the first valve and the second valve on biogas supervisor between described moisture trap and biogas fermentation device,
Biogas supervisor between first valve and the second valve is connected by biogas arm positive/negative pressure protector.
In the plurality of desulfurizing tower, the air inlet pipeline of each desulfurizing tower and outlet pipe being provided with valve, air water divides
It is provided with the 3rd valve on the biogas between device and the desulfurizing tower being arranged in parallel is responsible for.
Described desulfurizing tower includes the first desulfurizing tower and the second desulfurizing tower, and the air inlet pipeline of the first desulfurizing tower is provided with the 4th
Valve, outlet pipe is provided with the 5th valve, the air inlet pipeline of the second desulfurizing tower is provided with the 6th valve, on outlet pipe
It is provided with the 7th valve.
It is disposed with spark arrester and the 8th on biogas supervisor between the described desulfurizing tower being arranged in parallel and caisson
Valve.
A kind of purification method of methane purifying system, it is characterised in that: the produced biogas of biogas fermentation device is responsible for through biogas
During conveying, positive/negative pressure protector starts positive/negative-pressure protective effect, the water in first moisture trap removing biogas, then is transported to multiple
After the desulfurizing tower removing hydrogen sulfide being arranged in parallel, then it is transported to caisson by biogas supervisor after converging and stores.
When desulfurizing tower needs to change desulfurizing agent, close the valve on this desulfurizing tower air inlet pipeline and outlet pipe, carry out
Replacing desulfurizing agent processes, and biogas carries out depriving hydrogen sulphide by the desulfurizing tower of other parallel connection.
Employing it is an advantage of the current invention that:
1, the present invention is mounted with positive/negative pressure protector in methane purifying system, it is easy to manually to positive/negative pressure protector moisturizing, protects
Hold biogas fermentation pressure inside the tank constant, prevent marsh-gas fermentation tank from rupturing, first pass through moisture trap dehydration, be conducive to next step natural pond
Desulfurization.
2, in the present invention, desulfurizing tower uses parallel way, can carry out on-line desulphurization agent replacing by regulating different valves,
And spark arrester is set at system end, can prevent from changing the fire incident that desulfurizing agent causes, and not affect biogas and normally produce.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram
Figure is labeled as: 1, the first valve, 2, positive/negative pressure protector, the 3, second valve, 4, moisture trap, the 5, the 3rd valve,
6, the 4th valve, the 7, first desulfurizing tower, the 8, the 5th valve, the 9, the 6th valve, the 10, second desulfurizing tower, the 11, the 7th valve, 12, resistance
Firearm, the 13, the 8th valve.
Detailed description of the invention
Embodiment 1
A kind of methane purifying system, including moisture trap 4 and desulfurizing tower, described desulfurizing tower is multiple, and multiple desulfurizing towers are in parallel
Arranging, the air inlet of moisture trap 4 connects biogas fermentation device, multiple desulfurizing tower one end being arranged in parallel by biogas supervisor
By biogas, supervisor is connected with the gas outlet of moisture trap 4, and the other end is connected to caisson by biogas supervisor.
The preferred embodiment of the present invention is, on the biogas supervisor between described moisture trap 4 and biogas fermentation device
Being provided with the first valve 1 and the second valve 3, the biogas supervisor between the first valve 1 and the second valve 3 is connected by biogas arm
There is positive/negative pressure protector 2.
The another preferred implementation of the present invention is, in the plurality of desulfurizing tower, and the air inlet pipeline of each desulfurizing tower and going out
It is provided with valve on air pipe, the biogas supervisor between moisture trap 4 and the desulfurizing tower being arranged in parallel is provided with the 3rd
Valve 5.
The another preferred implementation of the present invention is, described desulfurizing tower includes the first desulfurizing tower 7 and the second desulfurizing tower 10, the
It is provided with the 4th valve 6 on the air inlet pipeline of one desulfurizing tower 7, outlet pipe is provided with the 5th valve 8, the second desulfurizing tower 10
It is provided with the 6th valve 9 on air inlet pipeline, outlet pipe is provided with the 7th valve 11.
The another preferred implementation of the present invention is, described in biogas master between the desulfurizing tower and the caisson that are arranged in parallel
Spark arrester 12 and the 8th valve 13 it is disposed with on pipe.
A kind of purification method of methane purifying system, including: the produced biogas of biogas fermentation device when biogas supervisor's conveying,
Positive/negative pressure protector starts positive/negative-pressure protective effect, the water in first moisture trap removing biogas, then is transported to multiple parallel connection and sets
After the desulfurizing tower removing hydrogen sulfide put, then it is transported to caisson by biogas supervisor after converging and stores.
When desulfurizing tower needs to change desulfurizing agent, close the valve on this desulfurizing tower air inlet pipeline and outlet pipe, carry out
Replacing desulfurizing agent processes, and biogas carries out depriving hydrogen sulphide by the desulfurizing tower of other parallel connection.
Embodiment 2
Present system, as a example by using 2 desulfurizing towers, is described further by the present embodiment in conjunction with accompanying drawing.
As it can be seen, a kind of methane purifying system, it includes positive/negative pressure protector, moisture trap, desulfurizing tower, back-fire relief
Device, pipeline and valve etc..The produced biogas of marsh-gas fermentation tank connects the first valve 1 through biogas supervisor, and biogas arm connects positive/negative-pressure protection
Device 2, biogas supervisor connects the second valve 3, and through moisture trap 4, then through the 3rd valve 5, biogas supervisor is divided into two pipelines, the
One desulfurizing tower 7 and the second desulfurizing tower 10 use parallel way, and road the 4th valve 6 enters the first desulfurizing tower 7, then connects the 5th valve
Door 8；Another Lu Jing six valve 9 enters the second desulfurizing tower 10, then connects the 7th valve 11, and last two-way pipeline converges a road and connects
Spark arrester 12, connects methane storage device after connecing the 8th valve 13.
Biogas arm connects positive/negative pressure protector 2, not be used in biogas fermentation tank top and arranges positive/negative pressure protector, it is easy to artificial
To positive/negative pressure protector moisturizing, keep biogas fermentation pressure inside the tank constant, prevent marsh-gas fermentation tank from rupturing.
This system first passes through moisture trap dehydration, is conducive to next step biogas desulfurization.
This system desulfurizing tower uses parallel way, and can carry out on-line desulphurization agent replacing by regulating different valves, and
Do not affect biogas normally to produce.
This system is provided with spark arrester, can prevent from changing the fire incident that desulfurizing agent causes.
The operation principle of native system is as follows:
When the produced biogas of biogas fermentation device is by biogas supervisor's conveying, the positive/negative pressure protector 2 connected by biogas arm will
Start positive/negative-pressure protective effect.Water in moisture trap 4, removing biogas, then through valve 5, biogas supervisor is divided into two
Pipeline, the first desulfurizing tower 7 and the second desulfurizing tower 10 use parallel way, and a road biogas enters the first desulfurizing tower through the 4th valve 6
7, remove hydrogen sulfide, another road biogas enters the second desulfurizing tower 10 through the 6th valve 9, and it is a road that last two-way pipeline biogas converges
By being transported to methane storage device after spark arrester the 12, the 8th valve 13.
When the first desulfurizing tower 7 needs to change desulfurizing agent, closing the 4th valve 6 and the 5th valve 8, biogas will all pass through
Second desulfurizing tower 10 carries out depriving hydrogen sulphide；In like manner, when the second desulfurizing tower 10 needs to change desulfurizing agent, the 6th valve 9 He is closed
7th valve 11, biogas all will carry out depriving hydrogen sulphide by the first desulfurizing tower 7.
Obviously, those of ordinary skill in the art is according to the technological know-how grasped and customary means, in accordance with the above
Content, it is also possible to make the various ways without departing from basic fundamental thought of the present invention, these pro forma conversion are all in the present invention
Protection domain within.
Claims (7)
1. a methane purifying system, including moisture trap and desulfurizing tower, it is characterised in that: described desulfurizing tower is multiple, many
Individual desulfurizing tower is arranged in parallel, and the air inlet of moisture trap (4) connects biogas fermentation device by biogas supervisor, and multiple parallel connections set
The desulfurizing tower one end put is connected with the gas outlet of moisture trap (4) by biogas supervisor, and the other end is connected by biogas supervisor
To caisson.
Methane purifying system the most according to claim 1, it is characterised in that: described moisture trap (4) and biogas fermentation
Between device biogas supervisor on be provided with the first valve (1) and the second valve (3), the first valve (1) and the second valve (3) it
Between biogas supervisor by biogas arm connect have positive/negative pressure protector (2).
Methane purifying system the most according to claim 2, it is characterised in that: in the plurality of desulfurizing tower, each desulfurizing tower
Air inlet pipeline and outlet pipe on be provided with valve, the biogas between moisture trap (4) and the desulfurizing tower being arranged in parallel
The 3rd valve (5) it is provided with on supervisor.
Methane purifying system the most according to claim 3, it is characterised in that: described desulfurizing tower includes the first desulfurizing tower (7)
With the second desulfurizing tower (10), the air inlet pipeline of the first desulfurizing tower (7) is provided with the 4th valve (6), outlet pipe is provided with
5th valve (8), the air inlet pipeline of the second desulfurizing tower (10) is provided with the 6th valve (9), outlet pipe is provided with the 7th
Valve (11).
Methane purifying system the most according to claim 4, it is characterised in that the desulfurizing tower being arranged in parallel described in: fills with gas storage
It is disposed with spark arrester (12) and the 8th valve (13) on biogas supervisor between putting.
The purification method of a kind of methane purifying system the most according to claim 1, it is characterised in that: biogas fermentation device institute
Product biogas is when biogas supervisor's conveying, and positive/negative pressure protector starts positive/negative-pressure protective effect, and first moisture trap removes in biogas
Water, then after being transported to multiple desulfurizing tower being arranged in parallel removing hydrogen sulfide, then be transported to gas storage by biogas supervisor after converging
Device stores.
The purification method of a kind of methane purifying system the most according to claim 6, it is characterised in that: when desulfurizing tower needs more
When changing desulfurizing agent, closing the valve on this desulfurizing tower air inlet pipeline and outlet pipe, be replaced desulfurizing agent and process, biogas passes through
The desulfurizing tower of other parallel connection carries out depriving hydrogen sulphide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610432356.1A CN105950240A (en) | 2016-06-17 | 2016-06-17 | Marsh gas purifying system and purifying method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610432356.1A CN105950240A (en) | 2016-06-17 | 2016-06-17 | Marsh gas purifying system and purifying method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105950240A true CN105950240A (en) | 2016-09-21 |
Family
ID=56906684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610432356.1A Pending CN105950240A (en) | 2016-06-17 | 2016-06-17 | Marsh gas purifying system and purifying method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006265480A (en) * | 2005-03-25 | 2006-10-05 | Idemitsu Kosan Co Ltd | Method for desulfurizing hydrocarbon-containing gas and fuel battery system |
| CN202054832U (en) * | 2011-04-01 | 2011-11-30 | 焦作市华中能源科技有限公司 | Water-sealing type positive-negative pressure protector for marsh-gas fermentation |
| CN202595137U (en) * | 2012-06-01 | 2012-12-12 | 江苏雪枫环保科技有限公司 | Methane collection power generation system |
| CN202610236U (en) * | 2012-05-29 | 2012-12-19 | 潍坊明硕环保设备有限公司 | Methane production system |
| CN102895866A (en) * | 2012-09-27 | 2013-01-30 | 开封黄河空分集团有限公司 | Dry-method desulfuration technology for methane |
| CN205774376U (en) * | 2016-06-17 | 2016-12-07 | 农业部沼气科学研究所 | A kind of methane purifying system |
-
2016
- 2016-06-17 CN CN201610432356.1A patent/CN105950240A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006265480A (en) * | 2005-03-25 | 2006-10-05 | Idemitsu Kosan Co Ltd | Method for desulfurizing hydrocarbon-containing gas and fuel battery system |
| CN202054832U (en) * | 2011-04-01 | 2011-11-30 | 焦作市华中能源科技有限公司 | Water-sealing type positive-negative pressure protector for marsh-gas fermentation |
| CN202610236U (en) * | 2012-05-29 | 2012-12-19 | 潍坊明硕环保设备有限公司 | Methane production system |
| CN202595137U (en) * | 2012-06-01 | 2012-12-12 | 江苏雪枫环保科技有限公司 | Methane collection power generation system |
| CN102895866A (en) * | 2012-09-27 | 2013-01-30 | 开封黄河空分集团有限公司 | Dry-method desulfuration technology for methane |
| CN205774376U (en) * | 2016-06-17 | 2016-12-07 | 农业部沼气科学研究所 | A kind of methane purifying system |
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Application publication date: 20160921 |