CN203998955U - A kind of device of preparing Sodium sulfhydrate - Google Patents
A kind of device of preparing Sodium sulfhydrate Download PDFInfo
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- CN203998955U CN203998955U CN201420387180.9U CN201420387180U CN203998955U CN 203998955 U CN203998955 U CN 203998955U CN 201420387180 U CN201420387180 U CN 201420387180U CN 203998955 U CN203998955 U CN 203998955U
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Abstract
The utility model discloses a kind of device that utilizes sodium hydroxide absorbing hydrogen sulphide to prepare Sodium sulfhydrate, device comprises carbon removing device and desulfurizer, carbon removing device comprises that two-stage removes carbon reactor, desulfurizer comprises three grades of desulphurization reactors, and two-stage is except being communicated with successively between carbon reactor and three grades of desulphurization reactors.Plant investment of the present utility model is few, floor space is little, assimilated efficiency is high; Use the utility model device to adopt the direct absorbing hydrogen sulphide of sodium hydroxide, absorption process belongs to typical acid-base reaction, is irreversible reaction, reacts completely rapidly, without discharging of waste liquid.
Description
Technical field
The utility model relates to a kind of device of preparing Sodium sulfhydrate, is specifically related to a kind of device that utilizes sodium hydroxide absorbing hydrogen sulphide to prepare Sodium sulfhydrate, belongs to the high density acid gas field that absorption cycle gas sweetening unit extracting tower resolution gas forms.
Background technology
High density acid gas refers to containing H
2s 50% ~ 90%, CO
2gas 10% ~ 50%.The formation of high density acid gas, generally by take weakly alkaline solution as lyosorption (alcamines, Benfield, sulfone amine etc.), the acid gas component or the reaction that absorb in gas form compound, when raising, absorb rich solution temperature or reduce while resolving pressure, sulfur removing pregnant solution discharges sour gas (is mainly H
2s and CO
2) and the high density H of formation
2the gas of S.
Generally adopt at present the high concentrated acid gas of acid-making process and Crouse sulphur art breading processed, these two kinds of Technology mature and reliable, at petrochemical enterprise, extensively adopt, but the shortcoming such as these two kinds of Technologies exist that investment is high, occupation area of equipment large, the domestic value of the product that cannot provide, produce secondary pollution source tail-gas, generation of the related accessory of equipment is low.A part of enterprise adopts the method for altitude combustion to process high density acid gas in addition, and this method is not only wasted resource, and has caused serious topsoil.Along with the attention of country to environmental issue, within nearly 2 years, by the form of legislation, improve the standard of discharge, so adopt the method relevant enterprise of altitude combustion all to face the problem of time limit rectification.
The traditional technology of producing Sodium Sulphide is the method that adopts coal reduction mirabilite method, this method is that coal dust and saltcake batch mixing are heated to 900 ℃ of left and right in high-temperature calcination stove, in process, can generate Sodium Sulphide solid, this method is applicable to producing a large amount of Sodium Sulphide products, but this technique can cause severe contamination to environment.
Producing sulphur hydride alkaline traditional technology is to utilize high-magnesium brine to react with Sodium Sulphide, generate hydrogen sulfide, use again certain density Sodium Sulphide absorbing hydrogen sulphide gas, generate liquid sulfur sodium hydride, through operations such as sedimentation, evaporation, film-makings, obtain finished product Sodium sulfhydrate again, this method is applicable to a large amount of sulphur hydride alkaline products of producing, but the bittern metal ion content of this technique use easily exceeds standard, and product select quality rate is low.
Utility model content
Technical problem for above-mentioned existence, the utility model provides a kind of device of preparing Sodium sulfhydrate, and this plant investment is few, floor space is little, assimilated efficiency is high, product Sodium sulfhydrate concentration is adjustable, exhaust emissions is completely up to standard, three-waste free discharge, economic worth are high.
The technical solution adopted in the utility model is:
A kind of device of preparing Sodium sulfhydrate, comprise carbon removing device and desulfurizer, described carbon removing device comprises that one-level is removed carbon reactor, secondary removes carbon reactor, one-level de-carbon recycle pump, secondary de-carbon recycle pump, described desulfurizer comprises first grade desulfurizing reactor, two-grade desulfurizing reactor, three grades of desulphurization reactors, first grade desulfurizing recycle pump, two-grade desulfurizing recycle pump and three grades of desulfuration recycle pumps, and described one-level is except carbon reactor, secondary are except being communicated with successively between carbon reactor, first grade desulfurizing reactor, two-grade desulfurizing reactor and three grades of desulphurization reactors.
The beneficial effects of the utility model are:
(1) use the utility model device to adopt the direct absorbing hydrogen sulphide of sodium hydroxide, absorption process belongs to typical acid-base reaction, is irreversible reaction, reacts completely rapidly, without discharging of waste liquid;
(2) plant investment of the present utility model is few, floor space is little, assimilated efficiency is high;
(3) use the utility model device main products be 40% ~ 80% adjustable Sodium sulfhydrate aqueous solution of strength of solution or purity at more than 98% Sodium sulfhydrate solid phase prod, byproduct is solid sodium carbonate, product economy is worth high;
(4) use the utility model device can remove more than 99.9% hydrogen sulfide, in tail gas, hydrogen sulfide content discharge value can be down to below 1mg/Nm3, completely qualified discharge.
Accompanying drawing explanation
Fig. 1 is the utility model process flow diagram;
In figure: 1 one-level is except carbon reactor, and 2 secondarys are except carbon reactor, 3 first grade desulfurizing reactors, 4 two-grade desulfurizing reactors, 5 three grades of desulphurization reactors, 6 one-level de-carbon recycle pumps, 7 secondary de-carbon recycle pumps, 8 first grade desulfurizing recycle pumps, 9 two-grade desulfurizing recycle pumps, 10 3 grades of desulfuration recycle pumps.
Embodiment
Below the utility model is described in further detail.
As shown in Figure 1, a kind of device of preparing Sodium sulfhydrate, comprise carbon removing device and desulfurizer, described carbon removing device comprises that one-level removes carbon reactor 1, secondary is except carbon reactor 2, one-level de-carbon recycle pump 6, secondary de-carbon recycle pump 7, described desulfurizer comprises first grade desulfurizing reactor 3, two-grade desulfurizing reactor 4, three grades of desulphurization reactors 5, first grade desulfurizing recycle pump 8, two-grade desulfurizing recycle pump 9 and three grades of desulfuration recycle pumps 10, described one-level is except carbon reactor 1, secondary is except carbon reactor 2, first grade desulfurizing reactor 3, between two-grade desulfurizing reactor 4 and three grades of desulphurization reactors 5, be communicated with successively.
Use device of the present utility model to prepare the method for Sodium sulfhydrate, comprise the following steps:
A, contain H
2s and CO
2the acid gas of gas removes carbon reactor 1 top from one-level and enters reactor, to secondary, except in carbon reactor 2, add sodium hydroxide solution continuously, the alkali lye in sodium hydroxide solution and secondary carbon dioxide cleaner 2 enters secondary and generates Na except carbon reactor 2 carries out absorption reaction after secondary de-carbon recycle pump 7 stirs simultaneously
2s or NaHS, the reaction times is 15-60min, reacted solution enters through liquid level adjusting the one-level that contains balanced solution and analyses reaction generation NaHCO except arranging in carbon reactor 1
3and H
2s gas, the reaction times is 60-300min;
The balanced solution that B, one-level are removed carbon reactor 1 interior formation turns back to one-level except circulation absorption CO in carbon reactor 1 after one-level de-carbon recycle pump 6
2gas, the CO of absorption
2gas is usingd the form of sodium hydrogen carbonate solution and is existed and as byproduct solution, complete carbon rejection process;
C, remove portion CO
2the acid gas of gas enters first grade desulfurizing reactor 3, two-grade desulfurizing reactor 4, three grades of desulphurization reactors 5 successively, and excessive sodium hydrate solution enters three grades of desulphurization reactors 5 through three grades of desulfuration recycle pumps 10 and carries out absorption reaction and generate Na together with acid gas simultaneously
2s or NaHS, reaction times is 15-60min, reacted solution enters two-grade desulfurizing reactor 4 through liquid level adjusting and carries out product generation cycle reaction generation NaHS, reaction times is 15-60min, the rear solution of reaction enters first grade desulfurizing reactor 3 through liquid level adjusting again and carries out product formation reaction generation NaHS, reaction times is 15-60min, after discharging by first grade desulfurizing recycle pump 8 side lines through the reacted solution of A reactor, carry out concentration, make sodium hydrosulfide or Sodium sulfhydrate solid, complete sweetening process;
Balanced solution in described steps A, B is the NaHCO by 40-85% by mass ratio
3, the NaHS of 5-30% is, the Na of 5-30%
2cO
3with mixing of the NaOH of 5-20%.
The process that described secondary removes the process of carbon reactor 1, the process of the reverse inflow two-grade desulfurizing of the solution reactor 4 in described three grades of desulphurization reactors 5 and the reverse inflow first grade desulfurizing of the solution reactor 3 in two-grade desulfurizing reactor 4 except the reverse inflow one-level of solution in carbon reactor 2 is all to control to realize by level chain.In described five reactors, reaction is to absorb or atomization absorption by injection.In described step C, concentration adopts the interior type of heating of chuck heating or the external heating mode of multiple-effect evaporator.
Claims (1)
1. a device of preparing Sodium sulfhydrate, it is characterized in that, described device comprises carbon removing device and desulfurizer, described carbon removing device comprises that one-level removes carbon reactor (1), secondary is except carbon reactor (2), one-level de-carbon recycle pump (6), secondary de-carbon recycle pump (7), described desulfurizer comprises first grade desulfurizing reactor (3), two-grade desulfurizing reactor (4), three grades of desulphurization reactors (5), first grade desulfurizing recycle pump (8), two-grade desulfurizing recycle pump (9) and three grades of desulfuration recycle pumps (10), described one-level is except carbon reactor (1), secondary is except carbon reactor (2), first grade desulfurizing reactor (3), between two-grade desulfurizing reactor (4) and three grades of desulphurization reactors (5), be communicated with successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420387180.9U CN203998955U (en) | 2014-07-15 | 2014-07-15 | A kind of device of preparing Sodium sulfhydrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420387180.9U CN203998955U (en) | 2014-07-15 | 2014-07-15 | A kind of device of preparing Sodium sulfhydrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203998955U true CN203998955U (en) | 2014-12-10 |
Family
ID=52038986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420387180.9U Expired - Fee Related CN203998955U (en) | 2014-07-15 | 2014-07-15 | A kind of device of preparing Sodium sulfhydrate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104071758A (en) * | 2014-07-15 | 2014-10-01 | 袁磊 | Device and method for preparing sodium hydrosulfide |
| CN110141948A (en) * | 2019-06-27 | 2019-08-20 | 山东清沂山石化科技有限公司 | A kind of amic H of sulfur-bearing2S tail gas three-level absorbs processing method |
-
2014
- 2014-07-15 CN CN201420387180.9U patent/CN203998955U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104071758A (en) * | 2014-07-15 | 2014-10-01 | 袁磊 | Device and method for preparing sodium hydrosulfide |
| CN110141948A (en) * | 2019-06-27 | 2019-08-20 | 山东清沂山石化科技有限公司 | A kind of amic H of sulfur-bearing2S tail gas three-level absorbs processing method |
| CN110141948B (en) * | 2019-06-27 | 2021-11-12 | 山东清沂山石化科技有限公司 | H containing sulfur amide2S tail gas three-stage absorption treatment method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20190715 |