CN1689995A - Digestion tank desulfurization method - Google Patents
Digestion tank desulfurization method Download PDFInfo
- Publication number
- CN1689995A CN1689995A CNA2004100376270A CN200410037627A CN1689995A CN 1689995 A CN1689995 A CN 1689995A CN A2004100376270 A CNA2004100376270 A CN A2004100376270A CN 200410037627 A CN200410037627 A CN 200410037627A CN 1689995 A CN1689995 A CN 1689995A
- Authority
- CN
- China
- Prior art keywords
- biogas
- tower
- sulfur
- digester
- solution
- 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.)
- Pending
Links
Images
Classifications
-
- 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
- Gas Separation By Absorption (AREA)
Abstract
The present invention is the desulfurizing process of sulfur containing marsh gas from digester in two stages of desulfurizing tower. The desulfurizing process includes leading sulfur containing marsh gas to desulfurizing tower from the bottom, spraying desulfurizing liquid from the sprayer in the upper part of the desulfurizing tower, reacting H2S in marsh gas with the desulfurizing liquid under the catalyst and co-catalyst, exhausting purified marsh gas through tower top and pipeline, draining enriched liquid with absorbed H2S from the bottom of the tower to enriched liquid tank, pressurizing the enriched liquid through ejector for mixing with air, reacting the enriched liquid with air in the ejector and the regenerating tank to form desulfurizing liquid, and returning the desulfurizing liquid in the sprayer.
Description
Technical field
The present invention relates to a kind of digester sulfur method, this method is to adopt with ejector regeneration PDS catalytic wet doctor treatment to carry out the digester biogas desulfurization.
Background technology
Large-scale wastewater treatment plant generally all is provided with sludge digestion tank and handles a large amount of mud that produce its every day, and in power consumption, produce a large amount of biogas energies in the digester normal course of operation, effectively utilize this energy can reduce the cost of sewage work, but because the H that contains in the biogas
2S is dissolved in the hydrosulphuric acid that produces in the steam will cause heavy corrosion to gas pipe line, gas-holder and gas equipment, and therefore, no matter digestion biogas is used for generating or burning boiler, all will carry out desulfurization before.
At present, the desulfurizer of most of sewage works design generally is divided into two kinds of dry type desulfurizing and wet type desulfurizings.In dry type desulfurizing, use the dry type desulfurizing tower, filling multi-layer desulfurization agent in the tower, but when being to use often sweetening agent change frequently, but sweetening effectiveness is still relatively poor.Therefore, dry type desulfurizing is not suitable for the high density H in sewage work's digester biogas
2The removal of S.The desulfurizer that wet type desulfurizing adopts is the wet type desulfurizing tower, owing to many reasons such as technology, equipment, added amount of chemical, often can not steady running, and desulfuration efficiency is also very low.Therefore, need to propose a kind of new digester sulfur method.
Summary of the invention
The object of the present invention is to provide a kind of digester sulfur method, this method adopts with ejector regeneration PDS catalytic wet doctor treatment carries out the digester biogas desulfurization.To H in the gas of digestion pond
2The removal effect of S can be stablized and reaches more than 90%, and doctor solution can recycle, consume few, little to environmental influence.
The objective of the invention is to realize: a kind of digester sulfur method by following technical proposals, in the two-step desulfurization tower, use doctor solution to carry out desulfurization, to send into thionizer by gas pipeline from the first grade desulfurizing tower bottom from the sulfur-bearing biogas of digester, this sulfur-bearing biogas rises to cat head at the bottom of by tower, the spray thrower on described thionizer top sprays doctor solution from top to bottom, hydrogen sulfide in the described sulfur-bearing biogas under catalyzer and promotor effect with doctor solution generation absorption reaction, form primary purification biogas, this primary purification biogas is discharged from the first grade desulfurizing top of tower by gas pipeline and is entered secondary thionizer bottom, carry out the secondary desulfurization by rising to cat head at the bottom of the tower, biogas through the secondary desulfurization forms secondary-cleaned biogas, and this secondary-cleaned biogas is discharged from secondary thionizer top and exported by pipeline; The rich solution that has absorbed hydrogen sulfide in described absorption reaction is discharged from first grade desulfurizing tower and first grade desulfurizing tower bottom, enter the rich solution groove by fluid pipeline, described rich solution is sent to described ejector device through the pressurization of rich solution groove, at rich solution described in the ejector and inhaled air thorough mixing, enter regeneration tank then, described rich solution and Air mixing liquid react in ejector device and regeneration tank, form regenerative sulfur binding liquid, this regenerative sulfur binding liquid enters the lean solution groove, enters the spray thrower repeated use on described thionizer top after described doctor solution pressurizes in the lean solution groove by fluid pipeline.
Compared with the prior art the present invention has following advantage:
1, the present invention adopts thionizer series connection to carry out two-step desulfurization, and utilizes that one-level tower flow velocity is little, pressure drop is little, long reaction time, and spray flux total amount big, that remove sulphur is big; Secondary tower flow velocity height, little, the H of pressure reduction that can provide in the sweetening process has been provided the characteristics that mass transfer effect is good
2The problem that S content is high.
2, the present invention adds in doctor solution with PDS and forms composite catalyzing, improves H in the gas of digestion pond
2The removal efficient of S.
3, the present invention has improved the regeneration tank liquid outlet, and the advantage of air flotation pool and settling tank is organically combined, and takes up an area of few.And can regulate the liquid level height in the regeneration tank, the sulphur foam of come-up is in time discharged.
4, the present invention is to H in the gas of digestion pond
2The removal effect of S can be stablized and reaches more than 90%, and doctor solution can recycle, consume few, little to environmental influence.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1, process flow diagram of the present invention
Fig. 2, regeneration tank synoptic diagram of the present invention
Fig. 3, regeneration tank liquid outlet synoptic diagram of the present invention (the A portion partial enlarged drawing of Fig. 2)
Embodiment
A kind of digester sulfur method, referring to Fig. 1, in the two-step desulfurization tower, use doctor solution to carry out desulfurization, to send into thionizer by gas pipeline 3 from first grade desulfurizing tower 1 bottom from the sulfur-bearing biogas of digester, this sulfur-bearing biogas rises to cat head at the bottom of by tower, the spray thrower 17 on described thionizer top sprays doctor solution from top to bottom, hydrogen sulfide in the described sulfur-bearing biogas under catalyzer and promotor effect with doctor solution generation absorption reaction, form primary purification biogas, this primary purification biogas is discharged from the first grade desulfurizing top of tower by gas pipeline 4 and is entered secondary thionizer 2 bottoms, carry out the secondary desulfurization by rising to cat head at the bottom of the tower, biogas through the secondary desulfurization forms secondary-cleaned biogas, and this secondary-cleaned biogas is discharged from secondary thionizer top by pipeline 5 outputs; The rich solution that has absorbed hydrogen sulfide in described absorption reaction is discharged from first grade desulfurizing tower and first grade desulfurizing tower bottom, by fluid pipeline 6,7 enter rich solution groove 8, described rich solution is through liquor pump 9 pressurizations of rich solution groove, be sent to described ejector device 12 through fluid pipeline 11, at rich solution described in the ejector and inhaled air thorough mixing, enter regeneration tank 10 then, described rich solution and Air mixing liquid react in ejector device and regeneration tank, form regenerative sulfur binding liquid, this regenerative sulfur binding liquid enters lean solution groove 14 by pipeline 13, spray thrower 17 repeated uses that enter described thionizer top by fluid pipeline 16 after liquor pump 15 pressurizations of described doctor solution in the lean solution groove.In the present embodiment, the ability of handling biogas can reach the 50-80 cubic meter/hour.
Referring to Fig. 2, in the present embodiment, a plurality of ejectors 12 are housed on the described regeneration tank, its top is provided with venting port 101, and its underpart is provided with foam outlet 102, wash water valve 103 and regenerative sulfur binding liquid delivery port 104,
Referring to Fig. 3, in the present embodiment, the feed liquor port 105 at the bottom of described regenerative sulfur binding liquid delivery port top has to exceed regeneration tank.This regenerative sulfur binding liquid delivery port organically combines the advantage of air flotation pool and settling tank, for absorbing high density H
2Sulphur is analysed in the regeneration of S doctor solution, the sulphur amount of separating out is big, the particle of separating out is also big, therefore be easy to generate partly precipitated, this liquid outlet structure can be good at throw out is stayed in the water jacket, reduced the sulphur content in the lean solution, and can regulate the liquid level height in the regeneration tank, the sulphur foam of come-up is in time discharged.
In the present embodiment, described doctor solution is by NaHCO
3With Na
2CO
3Be made into and form, its weight ratio is 8: 1; Its pH value is 8.3～8.7.(NaHCO
3Be sodium bicarbonate; Na
2CO
3Be yellow soda ash).
In the present embodiment, described catalyzer is phthalocyanine cobalt sulfonate organometallics (PDS), and described promotor is Resorcinol, ferrous sulfate.Described catalyst concentration is 3～6ppm.
Claims (4)
1, a kind of digester sulfur method, in the two-step desulfurization tower, use doctor solution to carry out desulfurization, it is characterized in that: will send into thionizer by gas pipeline from the first grade desulfurizing tower bottom from the sulfur-bearing biogas of digester, this sulfur-bearing biogas rises to cat head at the bottom of by tower, the spray thrower on described thionizer top sprays doctor solution from top to bottom, hydrogen sulfide in the described sulfur-bearing biogas under catalyzer and promotor effect with doctor solution generation absorption reaction, form primary purification biogas, this primary purification biogas is discharged from the first grade desulfurizing top of tower by gas pipeline and is entered secondary thionizer bottom, carry out the secondary desulfurization by rising to cat head at the bottom of the tower, biogas through the secondary desulfurization forms secondary-cleaned biogas, and this secondary-cleaned biogas is discharged from secondary thionizer top and exported by pipeline; The rich solution that has absorbed hydrogen sulfide in described absorption reaction is discharged from first grade desulfurizing tower and first grade desulfurizing tower bottom, enter the rich solution groove by fluid pipeline, described rich solution is sent to described ejector device through the pressurization of rich solution groove, at rich solution described in the ejector and inhaled air thorough mixing, enter regeneration tank then, described rich solution and Air mixing liquid react in ejector device and regeneration tank, form regenerative sulfur binding liquid, this regenerative sulfur binding liquid enters the lean solution groove, enters the spray thrower repeated use on described thionizer top after described doctor solution pressurizes in the lean solution groove by fluid pipeline.
2, digester sulfur method according to claim 1, it is characterized in that: described doctor solution is by NaHCO
3With Na2CO
3Be made into and form, its weight ratio is 8: 1; Its pH value is 8.3～8.7.
3, digester sulfur method according to claim 2 is characterized in that: described catalyzer is the phthalocyanine cobalt sulfonate organometallics, and described promotor is Resorcinol, ferrous sulfate.
4, digester sulfur method according to claim 3 is characterized in that: described catalyst concentration is 3～6ppm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100376270A CN1689995A (en) | 2004-04-28 | 2004-04-28 | Digestion tank desulfurization method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100376270A CN1689995A (en) | 2004-04-28 | 2004-04-28 | Digestion tank desulfurization method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1689995A true CN1689995A (en) | 2005-11-02 |
Family
ID=35345805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004100376270A Pending CN1689995A (en) | 2004-04-28 | 2004-04-28 | Digestion tank desulfurization method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1689995A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009089673A1 (en) * | 2008-01-18 | 2009-07-23 | Beijing Bootes Electric Power Sci-Tech Co., Ltd. | Multistage spray column for fuel gas desulfurization |
| CN101185839B (en) * | 2007-09-10 | 2010-09-01 | 中电投远达环保工程有限公司 | Wet fuel gas desulfurizingjet current oxidizing system |
| WO2010133149A1 (en) * | 2009-05-21 | 2010-11-25 | 潍坊金丝达印染有限公司 | Sewage recycling anaerobic treatment device |
| CN102604687A (en) * | 2012-03-28 | 2012-07-25 | 江苏中显集团有限公司 | Column and machine combined gas desulphurization process device and desulphurization method thereof |
| CN101597529B (en) * | 2009-07-31 | 2012-09-05 | 李旭源 | Methane bio-desulfurization device |
| CN101732985B (en) * | 2010-01-29 | 2013-01-23 | 北京合力清源科技有限公司 | Methane-desulfurizing device |
| CN102989289A (en) * | 2012-10-10 | 2013-03-27 | 贵州泰然环境科技有限责任公司 | Methane wet desulphurization device capable of recycling sulphur |
| CN106422773A (en) * | 2016-11-30 | 2017-02-22 | 唐山绿源环保科技有限公司 | Gas hydrogen sulfide removal system and desulfurizing method thereof |
| CN110527564A (en) * | 2019-08-08 | 2019-12-03 | 佰利天控制设备（北京）有限公司 | Blast furnace gas desulfurizing tower |
| CN112138723A (en) * | 2020-10-23 | 2020-12-29 | 田作林 | Desulfurization catalyst and preparation method thereof |
-
2004
- 2004-04-28 CN CNA2004100376270A patent/CN1689995A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101185839B (en) * | 2007-09-10 | 2010-09-01 | 中电投远达环保工程有限公司 | Wet fuel gas desulfurizingjet current oxidizing system |
| WO2009089673A1 (en) * | 2008-01-18 | 2009-07-23 | Beijing Bootes Electric Power Sci-Tech Co., Ltd. | Multistage spray column for fuel gas desulfurization |
| WO2010133149A1 (en) * | 2009-05-21 | 2010-11-25 | 潍坊金丝达印染有限公司 | Sewage recycling anaerobic treatment device |
| CN101597529B (en) * | 2009-07-31 | 2012-09-05 | 李旭源 | Methane bio-desulfurization device |
| CN101732985B (en) * | 2010-01-29 | 2013-01-23 | 北京合力清源科技有限公司 | Methane-desulfurizing device |
| CN102604687A (en) * | 2012-03-28 | 2012-07-25 | 江苏中显集团有限公司 | Column and machine combined gas desulphurization process device and desulphurization method thereof |
| CN102989289A (en) * | 2012-10-10 | 2013-03-27 | 贵州泰然环境科技有限责任公司 | Methane wet desulphurization device capable of recycling sulphur |
| CN106422773A (en) * | 2016-11-30 | 2017-02-22 | 唐山绿源环保科技有限公司 | Gas hydrogen sulfide removal system and desulfurizing method thereof |
| CN110527564A (en) * | 2019-08-08 | 2019-12-03 | 佰利天控制设备（北京）有限公司 | Blast furnace gas desulfurizing tower |
| CN112138723A (en) * | 2020-10-23 | 2020-12-29 | 田作林 | Desulfurization catalyst and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10449489B2 (en) | High efficient desulfurization-regeneration system using a suspension bed | |
| US10744451B2 (en) | Wet desulfurization process using a suspension bed | |
| US10464011B2 (en) | Renewable wet desulfurization process using a suspension bed | |
| US10449491B2 (en) | Integrated system for wet desulfurization using a suspension bed and regeneration | |
| US10471387B2 (en) | Renewable high efficient desulfurization process using a suspension bed | |
| CN1689995A (en) | Digestion tank desulfurization method | |
| CN103031172A (en) | Layered biological-chemical combined biogas desulfurizing device | |
| CN202270473U (en) | Carbon black tail gas desulfurization device | |
| CN210814652U (en) | Deep hydrogen sulfide removal device for sulfur recovery tail gas | |
| CN202688288U (en) | Tower crane combined gas desulfurization process unit | |
| CN201990643U (en) | Device for simultaneously removing H2S, CO2 and SO2 in sulfur-containing mixed gas | |
| CN2710731Y (en) | Biological catalystic-oxidation equipment for removing sulphur | |
| CN2825082Y (en) | Double-circulating double-alkali processed wet type desulfurization device | |
| CN112011378A (en) | Method for performing biogas desulfurization by using wastewater in biochemical process | |
| CN215440345U (en) | Novel natural gas desulfurization process device | |
| CN212396335U (en) | Sulfur-containing process gas wet desulphurization device | |
| WO2022082813A1 (en) | Method and system for treating organic sulfate-containing wastewater | |
| US10370608B2 (en) | Desulfurization process using a combination of a suspension bed and a fixed bed | |
| CN217351275U (en) | Gas fine desulfurization device | |
| CN212316052U (en) | Immersed biogas desulfurization device | |
| CN112473339B (en) | Energy-saving efficient desulfurization process adopting fiber membrane countercurrent amine washing | |
| CN219670440U (en) | Simple wet-type marsh gas desulfurization and purification device | |
| CN107485985A (en) | A kind of desulfuring and denitrifying apparatus | |
| CN216440320U (en) | High-efficient purifier of hydrogen sulfide gas body | |
| CN216909822U (en) | Efficient carbonyl sulfide and hydrogen sulfide composite removal system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |