CN202881200U - Desulfurizing device for gas of finery - Google Patents
Desulfurizing device for gas of finery Download PDFInfo
- Publication number
- CN202881200U CN202881200U CN 201220382871 CN201220382871U CN202881200U CN 202881200 U CN202881200 U CN 202881200U CN 201220382871 CN201220382871 CN 201220382871 CN 201220382871 U CN201220382871 U CN 201220382871U CN 202881200 U CN202881200 U CN 202881200U
- Authority
- CN
- China
- Prior art keywords
- solvent
- alkali
- communicated
- coal mine
- liquid film
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a desulfurizing device for the gas of a finery. The desulfurizing device comprises an alkali distribution device, a solvent absorption unit and an alkali wash unit, wherein the solvent absorption unit and the alkali wash unit are communicated through a pipeline; the solvent absorption unit is communicated with a gas (to be treated) input pipeline, a solvent input pipeline and a sulfur-containing solvent output pipeline; and the alkali wash unit is communicated with an alkali liquor input pipeline from the alkali distribution device, a treated gas output pipeline and a waste alkali liquor output pipeline through a correlated pipeline. The desulfurizing device has the advantages of high desulfurizing efficiency, high operating flexibility and the like, and is stable to run and easy to operate.
Description
Technical field
The utility model belongs to petrochemical complex tail gas recycle, energy-conservation pollution treatment field, is specifically related to a kind of refinery coal mine gas desulfurizer.
Background technology
Refining and petrochemical processing units often can produce a large amount of coal mine gas because wherein the content of acid gas such as hydrogen sulfide, carbonic acid gas is higher, if burn with its direct emptying or by torch, contaminate environment not only then, and cause resource waste, increased potential safety hazard.Therefore refinery's coal mine gas is typically used as the fuel of process furnace, to realize the purpose of energy-saving consumption-reducing, environmental contamination reduction.If but coal mine gas is processed without desulfurization, can cause on the one hand discharging sulfur dioxide in flue gas content to be higher than the environmental protection upper limit, thereby increased the weight of topsoil, on the other hand owing to itself contain the sour gas such as hydrogen sulfide, carbonic acid gas in the coal mine gas, and coal mine gas burning generation sulfurous gas, the existence of these sour gas can cause the corrosion of relevant device and pipeline.
At present, hydramine method sulfur removal technology is adopted in China's coal mine gas desulfurization usually, this technique is take weak alkaline aqueous solution-alcamines aqueous solution as absorption agent, the sour gas such as the hydrogen sulfide in the absorption tower in the absorption coal mine gas and carbonic acid gas, thereby the desulfurization that realizes coal mine gas is processed, behind the amine liquid sour gas that then the process heating desorption goes out to absorb, obtain regenerating and recycling.
The hydramine method has the large advantage for the treatment of capacity, but because amine liquid is easy to foaming, device operational difficulty, processing power decline occur easily, the problems such as amine consumption increase, thus so that the fluctuation of the sulphur content in the product is larger.In order to guarantee that sulphur content reaches the requirement index in the coal mine gas, the coal mine gas after the hydramine method can being processed is carried out smart desulfurization processing, but exists technique comparatively complicated, and the high problem of running cost.In addition, because the hydramine method generally adopts traditional absorption tower to carry out the absorption of the acidic substance such as hydrogen sulfide at present, therefore there is the problem of mass transfer assimilated efficiency deficiency.
Summary of the invention
The purpose of this utility model be to provide a kind of have desulfuration efficiency height, turndown ratio large, operate steadily, refinery's coal mine gas desulfurizer simple to operate.
The utility model is by the following technical solutions: a kind of refinery coal mine gas desulfurizer, and comprise and join the alkali device, it also comprises solvent absorbing unit and alkali cleaning unit, both are by pipeline connection; Described solvent absorbing unit is communicated with pending coal mine gas intake line, solvent intake line and sulfur-bearing solvent delivery conduit; Described alkali cleaning unit is communicated with alkali lye intake line, processing after gas gas delivery conduit and the waste lye delivery conduit of joining the alkali device from described by associated pipe.
The solvent absorbing fiber liquid film conversion unit of described solvent absorbing unit is communicated with the solvent slurry tank by flange, and this solvent absorbing fiber liquid film conversion unit is communicated with pending coal mine gas intake line and solvent intake line; Described solvent slurry tank bottom is communicated with sulfur-bearing solvent delivery conduit by the solvent delivery pump; This solvent slurry tank top and described alkali cleaning unit are communicated with.
Described solvent absorbing fiber liquid film conversion unit adopts the conversion unit that can realize liquid film mass transfer mode; Described solvent slurry tank adopts horizontal or vertical.
The alkali cleaning fiber liquid film conversion unit of described alkali cleaning unit is communicated with the alkali lye slurry tank by flange; This alkali cleaning fiber liquid film conversion unit top and described solvent slurry tank top are communicated with; Described alkali lye slurry tank top is communicated with processes after gas gas delivery conduit; And this alkali lye slurry tank bottom is communicated with alkali cleaning fiber liquid film conversion unit by NaOH solution circulating pump and forms alkali lye recycle pipeline, and this alkali lye recycle pipeline is communicated with alkali lye intake line and the waste lye delivery conduit of joining the alkali device from described simultaneously.
Described alkali cleaning fiber liquid film conversion unit adopts the conversion unit that can realize liquid film mass transfer mode, and described alkali lye slurry tank adopts horizontal or vertical.
The positive beneficial effect that the utility model has:
(1) in the solvent absorbing unit, utilize renewable solvent, and employing has the fiber liquid film conversion unit of efficient mass transfer efficient as the mass transfer apparatus of solvent and coal mine gas two-phase, can realize removing of most hydrogen sulfide in the coal mine gas, have desulfuration efficiency height, the desulfurization burden that can at utmost alleviate follow-up alkali cleaning unit and the characteristics of alkaline consumption.
(2) in the alkali cleaning unit, utilize 3～10% low concentration NaOH solution, and adopt the fiber liquid film equipment with efficient mass transfer efficient to carry out removing of surplus hydrogen sulfide and part mercaptan in the coal mine gas, have desulfuration efficiency height, characteristics that turndown ratio is large.Owing to the operation unstabilitys such as foaming reduce in the situation of desulfuration efficiency, can guarantee that the sulphur content of processing in the after gas gas is up to standard in the solvent absorbing unit.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
With reference to shown in Figure 1, a kind of refinery coal mine gas desulfurizer, comprise join alkali device, solvent absorbing unit A, alkali cleaning unit B, pending coal mine gas intake line C, solvent intake line D, from the described alkali lye intake line E that joins the alkali device, process the associated pipe such as after gas gas delivery conduit F, sulfur-bearing solvent delivery conduit G and waste lye delivery conduit H.
The solvent absorbing fiber liquid film conversion unit 1 of described solvent absorbing unit A is communicated with solvent slurry tank 2 by flange, and this solvent absorbing fiber liquid film conversion unit 1 is communicated with pending coal mine gas intake line C and solvent intake line D; Described solvent slurry tank 2 bottoms are communicated with sulfur-bearing solvent delivery conduit G by solvent delivery pump 3; The top of the alkali cleaning fiber liquid film conversion unit 4 of these solvent slurry tank 2 tops and described alkali cleaning unit B is communicated with.
The alkali cleaning fiber liquid film conversion unit 4 of described alkali cleaning unit B is communicated with alkali lye slurry tank 5 by flange; Described alkali lye slurry tank 5 tops are communicated with processes after gas gas delivery conduit F; And these alkali lye slurry tank 5 bottoms are communicated with alkali cleaning fiber liquid film conversion unit 4 by NaOH solution circulating pump 6 and form alkali lye recycle pipeline, and this alkali lye recycle pipeline is communicated with alkali lye intake line E and the waste lye delivery conduit H that joins the alkali device from described simultaneously;
The form of described solvent slurry tank 2 and alkali lye slurry tank 5 can adopt horizontal or vertical, and is preferably vertical.
Described solvent absorbing fiber liquid film conversion unit 1, alkali cleaning fiber liquid film conversion unit 4 can be selected the various conversion units that can realize liquid film mass transfer mode in the prior art, and for example the patent No. is that the water sparger of putting down in writing in the Chinese patent of ZL2010 2 0266679.6 is the fiber liquid film conversion unit of calandria.
Solvent by described solvent intake line D input is the alcamines aqueous solution, and such as Monoethanolamine MEA BASF, diethanolamine, diisopropanolamine (DIPA) and methyldiethanolamine etc., the preferable methyl diethanolamine aqueous solution, its massfraction are 30%～50%.
Be that massfraction is 3～20% the NaOH aqueous solution by the alkali lye from described alkali lye intake line E input of joining the alkali device.
The working process of present embodiment:
At solvent absorbing unit A, pending coal mine gas contacts in solvent absorbing fiber liquid film conversion unit 1 by associated pipe with solvent, finishes removing of most hydrogen sulfide in the coal mine gas; The coal mine gas that has removed hydrogen sulfide is separated in solvent slurry tank 2 with solvent, the coal mine gas that solvent slurry tank 2 tops are told is delivered to alkali cleaning fiber liquid film conversion unit 4, and the sulfur-bearing solvent that solvent slurry tank 2 bottoms are told transfers out device by sulfur-bearing solvent delivery conduit G.
In the alkali cleaning unit B, from the coal mine gas of the solvent slurry tank 2 of solvent absorbing unit A and alkali lye from NaOH solution circulating pump 6, contact in alkali cleaning fiber liquid film conversion unit 4 by associated pipe, finish removing of surplus hydrogen sulfide and part mercaptan in the coal mine gas; Processing after gas gas separates in alkali lye slurry tank 5 with alkali lye, the coal mine gas that alkali lye slurry tank 5 tops are told is by processing after gas gas delivery conduit F take-off equipment, and the alkali lye that alkali cleaning slurry tank 5 bottoms are told is delivered in the alkali cleaning fiber liquid film conversion unit 4 by NaOH solution circulating pump 6 and recycled.That intermittently replenishes delivers to alkali cleaning fiber liquid film conversion unit 4 from described alkali lye of joining the alkali device by alkali lye intake line E and associated pipe, and the waste lye of alkali lye slurry tank 5 bottom intermittently dischargeds is by waste lye delivery conduit H output.
Claims (8)
1. refinery's coal mine gas desulfurizer comprises and joins the alkali device, it is characterized in that: it also comprises solvent absorbing unit (A) and alkali cleaning unit (B), and both are by pipeline connection; Described solvent absorbing unit (A) is communicated with pending coal mine gas intake line (C), solvent intake line (D) and sulfur-bearing solvent delivery conduit (G); Described alkali cleaning unit (B) is communicated with alkali lye intake line (E), processing after gas gas delivery conduit (F) and the waste lye delivery conduit (H) of joining the alkali device from described by associated pipe.
2. a kind of refinery according to claim 1 coal mine gas desulfurizer, it is characterized in that: the solvent absorbing fiber liquid film conversion unit (1) of described solvent absorbing unit (A) is communicated with solvent slurry tank (2) by flange, and this solvent absorbing fiber liquid film conversion unit (1) is communicated with pending coal mine gas intake line (C) and solvent intake line (D); Described solvent slurry tank (2) bottom is communicated with sulfur-bearing solvent delivery conduit (G) by solvent delivery pump (3); This solvent slurry tank (2) top and described alkali cleaning unit (B) are communicated with.
3. a kind of refinery according to claim 2 coal mine gas desulfurizer, it is characterized in that: described solvent absorbing fiber liquid film conversion unit (1) adopts the conversion unit that can realize liquid film mass transfer mode; Described solvent slurry tank (2) adopts horizontal or vertical.
4. a kind of refinery according to claim 1 coal mine gas desulfurizer is characterized in that, the alkali cleaning fiber liquid film conversion unit (4) of described alkali cleaning unit (B) is communicated with alkali lye slurry tank (5) by flange; This alkali cleaning fiber liquid film conversion unit (4) top and described solvent slurry tank (2) top are communicated with; Described alkali lye slurry tank (5) top is communicated with processes after gas gas delivery conduit (F); And this alkali lye slurry tank (5) bottom is communicated with alkali cleaning fiber liquid film conversion unit (4) by NaOH solution circulating pump (6) and forms alkali lye recycle pipeline, and this alkali lye recycle pipeline is communicated with alkali lye intake line (E) and the waste lye delivery conduit (H) of joining the alkali device from described simultaneously.
5. a kind of refinery according to claim 4 coal mine gas desulfurizer, it is characterized in that: described alkali cleaning fiber liquid film conversion unit (4) adopts the conversion unit that can realize liquid film mass transfer mode, and described alkali lye slurry tank (5) adopts horizontal or vertical.
6. a kind of refinery according to claim 1 coal mine gas desulfurizer, it is characterized in that: the solvent by described solvent intake line (D) input is the alcamines aqueous solution, and this alcamines aqueous solution is Monoethanolamine MEA BASF, diethanolamine, diisopropanolamine (DIPA) or methyldiethanolamine.
7. a kind of refinery according to claim 6 coal mine gas desulfurizer, it is characterized in that: the solvent by described solvent intake line (D) input is the methyldiethanolamine aqueous solution, and its massfraction is 30%～50%.
8. a kind of refinery according to claim 1 coal mine gas desulfurizer is characterized in that: to come the alkali lye of alkali lye intake line (E) input of autogamy alkali device be that massfraction is 3～20% the NaOH aqueous solution by described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220382871 CN202881200U (en) | 2012-08-03 | 2012-08-03 | Desulfurizing device for gas of finery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220382871 CN202881200U (en) | 2012-08-03 | 2012-08-03 | Desulfurizing device for gas of finery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202881200U true CN202881200U (en) | 2013-04-17 |
Family
ID=48072646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220382871 Expired - Fee Related CN202881200U (en) | 2012-08-03 | 2012-08-03 | Desulfurizing device for gas of finery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202881200U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103754833A (en) * | 2014-01-26 | 2014-04-30 | 中建安装工程有限公司 | Device and method for producing sodium bisulfide by utilizing refinery dry gas |
| CN104826466A (en) * | 2014-02-10 | 2015-08-12 | 中国石油化工股份有限公司 | Three-stage countercurrent absorption process and apparatus for acidic gases |
| CN104826467A (en) * | 2014-02-10 | 2015-08-12 | 中国石油化工股份有限公司 | Process and system for producing sodium hydrosulfide from acidic gas |
| CN104826463A (en) * | 2014-02-10 | 2015-08-12 | 中国石油化工股份有限公司 | Process and apparatus for producing sodium hydrosulfide from acidic gas |
-
2012
- 2012-08-03 CN CN 201220382871 patent/CN202881200U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103754833A (en) * | 2014-01-26 | 2014-04-30 | 中建安装工程有限公司 | Device and method for producing sodium bisulfide by utilizing refinery dry gas |
| CN103754833B (en) * | 2014-01-26 | 2015-11-04 | 中建安装工程有限公司 | A kind of device and method utilizing oil refinery dry gas to produce Sodium sulfhydrate |
| CN104826466A (en) * | 2014-02-10 | 2015-08-12 | 中国石油化工股份有限公司 | Three-stage countercurrent absorption process and apparatus for acidic gases |
| CN104826467A (en) * | 2014-02-10 | 2015-08-12 | 中国石油化工股份有限公司 | Process and system for producing sodium hydrosulfide from acidic gas |
| CN104826463A (en) * | 2014-02-10 | 2015-08-12 | 中国石油化工股份有限公司 | Process and apparatus for producing sodium hydrosulfide from acidic gas |
| CN104826463B (en) * | 2014-02-10 | 2017-03-01 | 中国石油化工股份有限公司 | A kind of sour gas produces NaHS technique and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102527212B (en) | Comprehensive treating method and system for tail gas in ammoniac tank of coke-oven plant | |
| CN101700463A (en) | Method for desulfurating and denitrating and recovering sulfur resource in closed cycle way | |
| CN202881200U (en) | Desulfurizing device for gas of finery | |
| CN103113928B (en) | Optimization process of vacuum potassium carbonate method coke oven gas desulfurization and equipment thereof | |
| CN201304321Y (en) | A closed cycle desulphurization denitration and sulphur reclamation device | |
| CN203090756U (en) | Desulphurization device for hydrogen sulfide-containing gas | |
| CN201978664U (en) | Double-tower ammonia process desulphurization device | |
| CN104119946B (en) | A kind of catalytic cracking flue gas desulfurization and Acidic Gas Treating technique | |
| CN103638802A (en) | Device and method for processing acid gas of refinery plant | |
| CN106039941A (en) | Method used for desulphurization and denitration closed cycle and sulfur resource recovery | |
| CN202070285U (en) | Device for removing sulfur dioxides in sulphuric acid industrial tail gas and recovering sulphuric acid | |
| CN201168561Y (en) | Sewage treatment plant digestion tank marsh gas desulfurizer | |
| CN202762296U (en) | Double-alkali dust removal desulfurization device | |
| CN203200228U (en) | Self-circulating desulfurizer | |
| CN201015726Y (en) | Segmented sodium calcium double alkali desulfurization device | |
| CN210356587U (en) | Low-concentration sulfur dioxide gas sodium citrate desulfurization equipment | |
| CN101703881B (en) | Method for protecting carbon and desulfurizing boiler flue gas | |
| CN103691294A (en) | Device and technology for wet-type double-alkali method-based desulphurization and dedusting | |
| CN204710066U (en) | Biogas recirculation desulfurization preparation facilities | |
| CN103301718A (en) | Device capable of recovering and concentrating sulfur dioxide in tail gas | |
| CN104971601B (en) | Acid gas vertical reactor and processing method | |
| CN203017988U (en) | Novel double-alkali doctor solution regeneration system | |
| CN204619685U (en) | A kind of injecting type membrane filtration fine de-sulfur equipment being applicable to refinery | |
| CN105169894A (en) | Sulfur-containing exhaust gas disposal system | |
| CN202460450U (en) | Smoke desulfurization system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20170803 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |