CN101597529B - Methane bio-desulfurization device - Google Patents

Methane bio-desulfurization device Download PDF

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Publication number
CN101597529B
CN101597529B CN200910162260A CN200910162260A CN101597529B CN 101597529 B CN101597529 B CN 101597529B CN 200910162260 A CN200910162260 A CN 200910162260A CN 200910162260 A CN200910162260 A CN 200910162260A CN 101597529 B CN101597529 B CN 101597529B
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thionizer
liquid
pump
desulfurization
outlet
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CN200910162260A
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Chinese (zh)
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CN101597529A (en
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李旭源
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李旭源
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Abstract

The invention discloses a methane bio-desulfurization device, which comprises a desulfurizing tower, wherein the inside of the desulphurizing tower is provided with a packing layer; the lower part of the packing layer is provided with a methane inlet, a drain outlet and a liquid outlet; and the upper side of the packing layer is provided with an air outlet and a liquid inlet. The device is characterized by also comprising a regenerating tank and a pump, wherein the pump can pump an absorbing liquid discharged from a liquid outlet of the desulfurizing tower into the regenerating tank; the bottom part of the regenerating tank is provided with an air inlet and an air inlet pipe to supply air to the absorbing liquid in the regenerating tank for aeration and controlling the dissolved oxygen content of the absorbing liquid; a liquid outlet of the regenerating tank is also communicated with a settling tank so as to make an elemental sulfur in the absorbing liquid settled and separated; the upper part of the settling tank is provided with a clear liquid outlet communicated with a barren liquid tank; a liquid outlet of the barren liquid tank is communicated with a liquid inlet of the desulfurizing tower through an absorbing liquid pump and a circulating pipeline; and the lower part of the settling tank is provided with a deposition discharging outlet. The desulfurization device has the advantages of long operation period, safety and good desulfurization effect.

Description

Methane bio-desulfurization device

Technical field

The invention belongs to the energy---the biogas field specifically is a kind of methane bio-desulfurization device.

Background technology

Usually also has hydrogen sulfide in the biogas that anaerobic digestion produces; Hydrogen sulfide is under wet heat condition; Metallic conduit, gas storage holder and gas equipment are had very high corrodibility, and during the biogas burning, hydrogen sulfide can change into sulfurous gas or sulphur trioxide; Not only pollute the environment, but also can etching apparatus.So biogas must be removed hydrogen sulfide wherein before use.

Existing sulfur method has dry desulfurization, and its method is in the dry type desulfurizing tower, through sweetening agent red stone and hydrogen sulfide generation chemical reaction, removes the hydrogen sulfide in the biogas, but red stone meeting inefficacy after using repeatedly, a large amount of red stone waste materials can cause secondary pollution.Wet desulphurization method, its method are in the wet scrubbing tower, absorb the hydrogen sulfide in the biogas through alkaline liq.The first step is to adopt the NaOH solution washing biogas of pH=12.5, and the clearance of hydrogen sulfide is about 80%; Second step, NaClO and the NaOH solution washing of employing pH=9.5, the clearance of handling postcure hydrogen through two steps reaches more than 99%.But alkali lye is very fast crystallization in working cycle, stops up water pump, pipeline etc.

The patent No. is 200710067269.1; The Chinese patent document that name is called " methane bio-desulfurization device " discloses a kind of thionizer; Be in thionizer, to place the mesh-like filler; The nutritive medium section of filler below is communicated with reflux pump and transfer lime with the nozzle of filler top at the bottom of the tower, and biogas and air are that the same mouth of pipe is positioned on the tower wall of filler lower position.This desulfurizer is simple in structure; But have following problem: 1, the air of this device and biogas get in the thionizer from same inlet, and biogas at first directly contacts with air, because biogas is inflammable gas; Thereby there is great potential safety hazard, is easy to take place burning and blast; 2, in the process of desulfurization, oxygen one biogas and stream is through packing layer, and it is dissolved with a process in absorption liquid; Although therefore oxygen contains bright easy control in oxygen-supplying amount and the Ta Nei gas, the bad control of dissolved oxygen content, dissolved oxygen content is too much; Then can produce the sulfuric acid of very corrosive; Equipment is damaged, and if dissolved oxygen content is very few, then have a strong impact on sweetening effectiveness; 3, in the process of reaction, the elemental sulfur easy blocking packing layer that in thionizer, produces, thus result of use and work-ing life are affected greatly.Nutritive medium section restricted volume, and receive top spray and under the influence of absorption liquid, the elemental sulfur in this nutritive medium section is difficult for settlement separate come out, and has influenced sweetening effectiveness.

Summary of the invention

To the problem that prior art exists, the object of the present invention is to provide and a kind ofly dissolved oxygen is controlled more easily desulfurization effect, safe and reliable methane bio-desulfurization device.

The technical scheme that the present invention taked is: a kind of methane bio-desulfurization device; Comprise thionizer; In said thionizer, be provided with packing layer, be provided with biogas inlet mouth, sewage draining exit and liquid outlet, above said packing layer, be provided with air outlet and fluid inlet in the bottom of packing layer; It is characterized in that: comprise that also absorption liquid that a regeneration tank and one discharge said thionizer liquid outlet squeezes into the pump of regeneration tank; There are inlet mouth and inlet pipe in the regeneration tank bottom with the ventilation of the absorption liquid in regeneration tank, carries out the dissolved oxygen content of aeration and control absorption liquid, and said regeneration tank liquid outlet also is communicated with a subsider; So that the elemental sulfur in the absorption liquid is by settlement separate; Subsider top has purified liquor outlet to communicate with a lean solution groove, and the liquid outlet of lean solution groove is communicated with the fluid inlet of said thionizer through absorbing liquid pump and circulating line, and the sediment drain is arranged at the subsider bottom.

In described thionizer, between packing layer and biogas air outlet, also be provided with scum dredger, bring the mist that produces into methane outlet pipe and gas equipment with the air-flow of avoiding rising.

Owing to have salt that elemental sulfur or crystallization separate out or other impurity in process of production along with on filler; Cause porosity to reduce and the packing pressure drop increase; Thereby influence runs well, and can also have a clear water water-in in said thionizer filler top position, also comprises a clear water jar; A fresh water pump is connected on the clear water water-in and the connecting pipe between the clear water jar of thionizer, utilizes clear water that packing layer is cleaned.

For guaranteeing that clear water evenly is sprayed on the packing layer, in institute's thionizer, can also be provided with nozzle or skimmer and communicate with said clear water water-in.

Fresh water pump with absorb liquid pump and can be pump independently; But more satisfactory is that described fresh water pump and described absorption liquid pump are same pump; Its import is communicated with lean solution groove and Rinsing Area respectively through threeway and valve, and its outlet is communicated with through the pipeline that threeway and the valve and the fluid inlet of thionizer are connected with the clear water water-in respectively.Because normal sweetening process and cleaning process can not carried out simultaneously, can reduce the investment of a pump like this.

All under meter can be installed on the pipeline of said pump discharge threeway and thionizer fluid inlet and clear water water-in, with convenient control absorption liquid internal circulating load and clear water flow.

Can also comprise a rich solution groove; Liquid outlet at the bottom of the described desulfurization Tata communicates with the rich solution groove through pipeline; Described inlet from the pump of absorption liquid to regeneration tank that make communicates with this rich solution groove; Also have a liquid-inlet pipe and rich solution groove to pass to mutually and replenish absorption liquid or mend clear water, this rich solution groove prevents to find time in the thionizer and avoids the mercury vapour erosion except that having certain shock absorption like this, also is convenient to additional absorption liquid or clear water in needs.

In the vertex position automatic blow off valve valve air relief can also be installed on the connecting pipe between described rich solution groove and the thionizer, to keep the thionizer internal pressure and to prevent the mercury vapour erosion.

Inlet pipe lowest part at described thionizer biogas inlet mouth can be equipped with trap, before getting into thionizer, separates and discharge with the lime set that biogas is contained.

On the connecting tube of the fluid inlet of described regeneration tank and inlet mouth, under meter is installed all, with dominant discharge.For the occasion that does not have compressed air gas source directly to adopt, can also on the pipeline of inlet mouth, air pump be installed, to satisfy the aeration needs.

This methane-desulfurizing device of the present invention has following characteristics:

(1) increases an independently regeneration tank; And regeneration tank has the inlet mouth bubbling air; Make that the aeration of absorption liquid is independently to carry out in the regeneration tank; Can control the elemental sulfur major part like this and be in the regeneration tank and produce, can be settlement separate through the subsider of back, elemental sulfur is produced obstruction filler problem when avoiding in tower aeration in packing layer.

(2) aeration in the regeneration tank independently again, the dissolved oxygen content of air flow and absorption liquid stable easily with accurately control.

(3) volume of regeneration tank can carry out design and installation as required easily, does not receive the height and the diameter restrictions of thionizer.

(4) excess air used of aeration and biogas are isolated, and have avoided excessive oxygen and biogas directly to mix and have contacted the unsafe factor that brings.

Description of drawings

Fig. 1 is the schema of methane-desulfurizing device of the present invention.

Embodiment

Through specific embodiment the present invention is described in further detail below.

As shown in Figure 1; It is a preferred embodiment of methane bio-desulfurization device of the present invention; Desulfurizer comprises a thionizer 1; In thionizer 1, be provided with packing layer 11, be provided with biogas inlet mouth, sewage draining exit and liquid outlet, above packing layer 11, be provided with air outlet and fluid inlet in the bottom of packing layer.In thionizer 1, between packing layer 11 and biogas air outlet, also be provided with scum dredger 12.

Comprise that also absorption liquid that a regeneration tank 5 and one discharge the thionizer liquid outlet squeezes into the pump 3 of regeneration tank, and rich solution groove 2.

Liquid outlet at the bottom of thionizer 1 tower communicates with rich solution groove 2 through pipeline, also has a liquid-inlet pipe and rich solution groove to pass to mutually on the rich solution groove 2 and replenishes absorption liquid or mend clear water.In the vertex position automatic blow off valve valve air relief 21 is installed also on the connecting pipe between rich solution groove 2 and the thionizer 1.

The inlet of making the pump 3 of absorption liquid communicates with rich solution groove 2, and the outlet conduit of pump 3 is connected the import of regeneration tank 5.Regeneration tank 5 bottoms have inlet mouth and inlet pipe to ventilate with the absorption liquid in regeneration tank; Carry out the dissolved oxygen content of aeration and control absorption liquid; On the connecting tube of the fluid inlet of regeneration tank 5 and inlet mouth, under meter is installed all, and the air pump 4 that air feed is used also is installed on the pipeline of inlet mouth.

The liquid outlet of regeneration tank 5 is communicated with a subsider 6, so that the elemental sulfur in the absorption liquid is by settlement separate, the sediment drain is arranged at the subsider bottom.Subsider 6 tops have purified liquor outlet to communicate with a lean solution groove 7, and the liquid outlet of lean solution groove 7 is communicated with the fluid inlet of thionizer 1 with circulating line through absorbing liquid pump 8.

Also have a clear water water-in in thionizer 1 filler 11 top positions, comprise that also 9, one pumps 8 of a clear water jar are connected on the clear water water-in and the connecting pipe between the clear water jar of thionizer.In institute's thionizer 1, also being provided with nozzle or skimmer 13 communicates with the clear water water-in.

The import of pump 8 is communicated with lean solution groove 7 and Rinsing Area 9 respectively through threeway and valve, and its outlet is communicated with through the pipeline that threeway and the valve and the fluid inlet of thionizer 1 are connected with the clear water water-in respectively.On the fluid inlet of pump 8 outlet threeways and thionizer 1 and the pipeline of clear water water-in under meter is installed all.

Inlet pipe lowest part at thionizer 1 biogas inlet mouth is equipped with trap 20.

Weakly alkaline absorption liquid sprays from packing layer 11 tops and descends, and biogas gets in the thionizer 1 from the filler bottom, makes progress when passing through packing layer and the absorption liquid counter current contact, H wherein 2S is dissolved in the weakly alkaline absorption liquid and reacts as follows:

Absorption liquid gets into rich solution groove 2 from the tower bottom liquid outlet of thionizer 1, and is driven in the regeneration tank 5 through pump 3, and inflate in regeneration tank 5 through air pump 4 and carry out aeration, following reaction, take place in control absorption liquid dissolved oxygen content in regeneration tank:

Absorption liquid overflow behind the aeration is advanced subsider 6 through sedimentation, makes most of elemental sulfur be deposited to bottom land to be discharged from recovery, and lean solution groove 7 is gone in the clear liquid overflow, squeezes into the thionizer circulation desulfurization through pump 8 and handles.

When needs clean thionizer; Close valve and the valve between pump discharge and thionizer 1 fluid inlet between pump 8 and the lean solution groove 7; Open pump 8 after opening the valve between pump 8 and the Rinsing Area 9, and the valve of opening on the pump 8 outlet fresh water pipelines cleans to scum dredger 12 and packing layer 11.

Claims (8)

1. methane bio-desulfurization device; Comprise thionizer, in said thionizer, be provided with packing layer, be provided with biogas inlet mouth, sewage draining exit and liquid outlet in the bottom of packing layer; Above said packing layer, be provided with air outlet and fluid inlet; It is characterized in that: comprise that also absorption liquid that a regeneration tank and one discharge said thionizer liquid outlet squeezes into the pump of regeneration tank, the regeneration tank bottom has inlet mouth and inlet pipe to ventilate with the absorption liquid in regeneration tank, on the connecting tube of the fluid inlet of described regeneration tank and inlet mouth, under meter is installed all; Carry out the dissolved oxygen content of aeration and control absorption liquid; Said regeneration tank liquid outlet also is communicated with a subsider, so that the elemental sulfur in the absorption liquid is by settlement separate, subsider top has purified liquor outlet to communicate with a lean solution groove; The liquid outlet of lean solution groove is communicated with the fluid inlet of said thionizer through absorbing liquid pump and circulating line, and the sediment drain is arranged at the subsider bottom; Also has a clear water water-in in said thionizer filler top position; In institute's thionizer, also being provided with nozzle or skimmer communicates with said clear water water-in; Also comprise a clear water jar, a fresh water pump is connected on the clear water water-in and the connecting pipe between the clear water jar of thionizer.
2. methane bio-desulfurization device according to claim 1 is characterized in that: in described thionizer, between packing layer and biogas air outlet, also be provided with scum dredger.
3. methane bio-desulfurization device according to claim 1 and 2; It is characterized in that: described fresh water pump and described absorption liquid pump are same pump; Its import is communicated with lean solution groove and Rinsing Area respectively through threeway and valve, and its outlet is communicated with through the pipeline that threeway and the valve and the fluid inlet of thionizer are connected with the clear water water-in respectively.
4. methane bio-desulfurization device as claimed in claim 3 is characterized in that: on the pipeline of said pump discharge threeway and thionizer fluid inlet and clear water water-in under meter is installed all.
5. methane bio-desulfurization device according to claim 1 and 2; It is characterized in that: also comprise a rich solution groove; Liquid outlet at the bottom of the described desulfurization Tata communicates with the rich solution groove through pipeline; Described inlet from the pump of absorption liquid to regeneration tank that make communicates with this rich solution groove, also has a liquid-inlet pipe and rich solution groove to pass to mutually and replenishes absorption liquid or mend clear water.
6. methane bio-desulfurization device as claimed in claim 5 is characterized in that: in the vertex position automatic blow off valve valve air relief is installed also on the connecting pipe between described rich solution groove and the thionizer.
7. according to claim 1 or claim 2 methane bio-desulfurization device, it is characterized in that: the inlet pipe lowest part at described thionizer biogas inlet mouth is equipped with trap.
8. according to claim 1 or claim 2 methane bio-desulfurization device is characterized in that: air pump also is installed on the pipeline of said inlet mouth.
CN200910162260A 2009-07-31 2009-07-31 Methane bio-desulfurization device CN101597529B (en)

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101732985B (en) * 2010-01-29 2013-01-23 北京合力清源科技有限公司 Methane-desulfurizing device
CN102120134A (en) * 2010-12-31 2011-07-13 哈尔滨工业大学 Electrochemical treatment device and method for removing hydrogen sulfide in methane
CN102994181A (en) * 2012-10-10 2013-03-27 贵州泰然环境科技有限责任公司 Process for wet desulfurization of biogas
CN103071378B (en) * 2013-01-11 2015-07-01 中国科学院广州能源研究所 Two-stage biological desulfuration device of marsh gas
CN105505495A (en) * 2014-09-23 2016-04-20 中国石油化工股份有限公司 Skid-mounted microorganism desulfurization and sulphur recovery apparatus
CN108097021A (en) * 2017-12-25 2018-06-01 宜宾丝丽雅股份有限公司 A kind of TRS purifications technique

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005053820A1 (en) * 2003-12-03 2005-06-16 Stefan Ermich Desulfurization of gases for gaseous fuels treatment or odour control
CN1689995A (en) * 2004-04-28 2005-11-02 北京城市排水集团有限责任公司 Digestion tank desulfurization method
CN2870960Y (en) * 2006-01-18 2007-02-21 北京合百意生态能源科技开发有限公司 Marsh-gas desulfurizer
CN201168561Y (en) * 2008-03-25 2008-12-24 北京城市排水集团有限责任公司 Sewage treatment plant digestion tank marsh gas desulfurizer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005053820A1 (en) * 2003-12-03 2005-06-16 Stefan Ermich Desulfurization of gases for gaseous fuels treatment or odour control
CN1689995A (en) * 2004-04-28 2005-11-02 北京城市排水集团有限责任公司 Digestion tank desulfurization method
CN2870960Y (en) * 2006-01-18 2007-02-21 北京合百意生态能源科技开发有限公司 Marsh-gas desulfurizer
CN201168561Y (en) * 2008-03-25 2008-12-24 北京城市排水集团有限责任公司 Sewage treatment plant digestion tank marsh gas desulfurizer

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