CN205700142U - A kind of device processing low concentration hydrogen sulphide acid tail gas - Google Patents
A kind of device processing low concentration hydrogen sulphide acid tail gas Download PDFInfo
- Publication number
- CN205700142U CN205700142U CN201620635468.2U CN201620635468U CN205700142U CN 205700142 U CN205700142 U CN 205700142U CN 201620635468 U CN201620635468 U CN 201620635468U CN 205700142 U CN205700142 U CN 205700142U
- Authority
- CN
- China
- Prior art keywords
- sulfur
- inlet
- gas
- tail gas
- outlet
- 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.)
- Active
Links
Landscapes
- Industrial Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The utility model discloses a kind of device processing low concentration hydrogen sulphide acid tail gas, hydrogen sulfide acid tail gas mixes in unstripped gas blender with air, material mixer, raw material gas purifying device, feed gas heater, flameless catalytic oxidation reactor, product cooler, product separator is sequentially communicated, the liquid outlet of product separator is connected with the inlet of liquid sulfur pit by sulfur sealed cans, the gas outlet of product separator connects with the air inlet of tail gas washing tower, the cleaning mixture of tail gas washing tower exports the inlet of groove sulfur-rich with cleaning mixture and connects, the overfall of the sulfur-rich groove of cleaning mixture circulates with tail gas washing tower, the discharging opening of the sulfur-rich groove of cleaning mixture successively with continuous sulfur melting kettle, circulation type washing trough connects, the sulfur outlet of continuous sulfur melting kettle connects with the inlet of liquid sulfur pit.This utility model has that safety is high, energy consumption is low, plant investment and day-to-day operation maintenance cost is low less, side-product quality height, environmental friendliness, Technological adaptability by force, the feature of flexible process adjustment.
Description
Technical field
This utility model belongs to natural gas, petrochemical industry, Coal Chemical Industry tail gas clean-up field, relates to petrochemical industry, Coal Chemical Industry
Field processes low sulfur-bearing raw material and uses low-temp methanol to wash operation purification generation low sulfide hydrogen acid tail gas purification removing field, special
Do not relate to a kind of device processing low concentration hydrogen sulphide acid tail gas.
Background technology
Low-temp methanol washing process is a kind of physical desulfurization method removing sour gas in unstripped gas, is to utilize methanol solvate
Marked difference to various gas component dissolubility, can remove H respectively2S、CO2With impurity such as various organic sulfurs, there is gas clean
Change degree is high, the features such as selectivity is good, solvent absorption ability is strong, operating cost is low, extensively should by petrochemical industry, coal chemical technology
With.
Low-temp methanol washing process absorbs H2The methanol of S carries out regeneration cycle profit through methods such as flash distillation, air stripping, hot recycling
With, the sulfide hydrogen acid tail gas simultaneously parsed is sent to sulfur recovery process and carries out purified treatment, in actual production process
In, wash, from low-temp methanol, the hydrogen sulfide containing acid tail gas that operation sends out and there is H2The low 0.5-15% of S content, tail gas are large-minded
Etc. problem, if using low sulfur-bearing raw material to be processed producing, these problems will be more prominent.And routine sulfur recovery technology is usual
The sulfur removal technology technology common demands such as the Claus unit sulfur recovery unit series of employing, Crouse+vent gas treatment sulfur recovery technology are treated
In the entrance unstripped gas processed, hydrogen sulfide content is higher than 15-30%, could meet normal production run.
For solving above-mentioned contradiction, it is common practice that upstream low-temp methanol technique is transformed, increase hydrogen sulfide concentration mistake
Journey and equipment, to adapt to the technological requirement of conventional sulfur recovery entrance concentration.Do so increases plant investment, increases technological operation
Complexity, reduces the economy of plant running, also needs to consider whether original low temperature washing device for methanol has sufficiently large simultaneously
Place disposes newly-increased device and equipment.
Additionally, the most commonly used Crouse's series sulfur recovery technology is for this atm number, low in hydrogen sulphide concentration
Acid tail gas, commonly used oxygen-enriched combusting aoxidizes, to improve its desulfurization degree.On the one hand need to set up air separation unit and oxygen be provided,
Add plant investment and process complexity.On the other hand, oxygen-enriched flaming combustion considerably increases the security risk of device.Additionally
Crouse's series sulfur recovery technology is that external imported technology, its catalyst and technique patented technology are introduced costly, project
Invest higher.
Other uses wet desulphurization, the method such as including high gravity desulfurization method, ammonia process tail gas desulfurization, caustic wash desulfuration method
Sulfur recovery unit, needs to consume the raw and auxiliary materials such as a large amount of PDS desulfurizing agent, ammonia, alkali liquor, the problem that plant running is relatively costly,
On-the-spot running also exists equipment corrosion, device pipeline blocks serious situation.Along with country's requirement to sulphur emissions index
Increasingly stricter, how to realize these desulfurizer low costs, long period and stable operation, have become as these enterprise's sulfur recoveries
Technology equipment upgrading process problem demanding prompt solution.
Summary of the invention
In order to solve problems of the prior art, the utility model discloses a kind of process low concentration hydrogen sulphide acid
The device of tail gas, has that safety is high, energy consumption is low, a plant investment and day-to-day operation maintenance cost is low less, side-product quality high, row
Venting can qualified discharge, environmental friendliness, Technological adaptability strong, the feature of flexible process adjustment.
The technical solution of the utility model is achieved in that
A kind of device processing low concentration hydrogen sulphide acid tail gas, including: unstripped gas blender, raw material gas purifying device, former
Material air preheater, flameless catalytic oxidation reactor, product cooler, product separator, tail gas washing tower, cleaning mixture are sulfur-rich
Groove, continuous sulfur melting kettle, circulation type washing trough, sulfur sealed cans, liquid sulfur pit, upstream low-temp methanol washes operation low concentration hydrogen sulphide acidity tail
Gas mixes in unstripped gas blender with air, and the gas outlet of material mixer connects with the air inlet of raw material gas purifying device
Logical, the gas outlet of raw material gas purifying device connects with the air inlet of feed gas heater, the gas outlet of feed gas heater and nonflame
The air inlet connection of catalyst oxidation reactor, the gas outlet of flameless catalytic oxidation reactor by after product cooler with product
The charging aperture connection of product separator, the liquid outlet of product separator is connected with the inlet of liquid sulfur pit by sulfur sealed cans, and product divides
Connecting with the air inlet of tail gas washing tower from the gas outlet of device, the cleaning mixture of tail gas washing tower exports entering of groove sulfur-rich with cleaning mixture
Liquid mouth connects, and is additionally provided with offgas outlet and water inlet on tail gas washing tower, the overfall of the sulfur-rich groove of cleaning mixture and circulation washing
The inlet circulation of tank, the liquid outlet of circulation type washing trough is by the inlet of circulation washings booster with tail gas washing tower
Connection, the discharging opening of the sulfur-rich groove of cleaning mixture connects with the inlet of continuous sulfur melting kettle, and the cleaning mixture of continuous sulfur melting kettle exports and follows
The inlet circulation of ring type washing trough, the sulfur outlet of continuous sulfur melting kettle connects with the inlet of liquid sulfur pit.
As a kind of preferred implementation, this device also includes that collecting tank, described continuous sulfur melting kettle are chuck sulfur melting kettle, and
Chuck sulfur melting kettle is provided with steam inlet and condensate outlet, the steam inlet of chuck sulfur melting kettle and product cooler
Steam (vapor) outlet connects, and the condensate outlet of chuck sulfur melting kettle connects with the inlet of collecting tank, and the liquid outlet of collecting tank is by cold
But recirculated water force (forcing) pump connects with the inlet of product cooler.
Preferably, this device is additionally provided with supercharging air equipment, for the air before entering material mixer is carried out supercharging.
Certainly, when the system pressure that factory has the pressure of the device air of affluence to be more than this device, it is also possible to use and there is a level pressure
The device air of power, utilizes the pressure of device air (or device air mixes according to a certain percentage with air) to be delivered into device also
Participate in reaction, when the pressure of device air is suitable with amount, it is also possible to save the configuration of supercharging air equipment, directly that device is empty
Gas allocates unstripped gas blender into；When supercharging air equipment is set up in employing, it is preferably configured two, and connects in parallel,
Carrying out one time properly functioning, to open one standby, to ensure continuous, the stable operation of this device.
It is preferred that this device is additionally provided with unstripped gas supercharging equipment, for the upstream low temperature first before entrance material mixer
Alcohol is washed operation low concentration hydrogen sulphide acid tail gas and is carried out supercharging.
The beneficial effects of the utility model are:
Consider according to the supporting water treatment capacity of factory's postorder, this utility model plant investment and occupation of land situation etc., point
Can be processed by washings circulation process from the isolated tail gas of device, make this utility model have strong adaptability, adjust
Advantage flexibly.
Above-mentioned washings circulation process is: product separator tail gas out is washed liquid washing in tail gas washing tower and inhales
The sulfur powder that getter is escaped mutually, treated tail gas can qualified discharge on the spot, washing sent into by the dirty cleaning mixture absorbing sulfur powder
Liquid regenerative system is (by the sulfur-rich groove of cleaning mixture, continuous sulfur melting kettle, circulation type washing trough, circulation washings booster, collecting tank, cold
But recirculated water force (forcing) pump, liquid sulfur pit connection realize) regeneration after, through circulation washings booster pressure-raising after, return to tail
Cyclic absorption product separator tail gas out in gas wash tower.This flow process has washings operation with closed ring, does not has discharge of wastewater,
And device is affected little advantage by external system.
The cleaning mixture regenerative system mentioned in above-mentioned washings circulation process uses continuous sulfur melting kettle thus realizes the most molten
Sulfur method, it is achieved to the enrichment of sulfur in cleaning mixture, melt refining, separation and recovery process, complete the regeneration to sulfur-rich cleaning mixture.
Product in above-mentioned technical process and equipment is by certain heat recovery mode, in conjunction with this utility model
Selected flow process: boiler water can be selected to reclaim product heat and be used for washings with by-product low-pressure steam, by-product low-pressure steam
The sulfur melting kettle heating of indirect regeneration separates thermal source, it is achieved utility model process energy Appropriate application.
The cleaning mixture that the tail gas absorption scrubber mentioned in above-mentioned process technology scheme uses, uses low-temp methanol to wash
Device methanol-water tower bottom of rectifying tower relief liquor, in washings circulation process, this methanol-water tower bottom of rectifying tower relief liquor is as benefit
Fill washings to use, use when only when driving and supplementing washings at ordinary times, and without using continuously, by upstream low-temp methanol
Cleaning device waste water recycling does washing tail gas water of the present utility model, it is achieved that waste water circulation reuse, reduces utility model technique
Consumption of raw materials and cost with device.
In order to realize the said equipment break down time, can isolation processing problem online, and do not affect device continuous-stable
Run, can be to the key equipment in this device, such as: raw material gas purifying device, tail gas washing tower, continuous sulfur melting kettle etc. carry out double system
Row configuration, uses connected mode in parallel, and carrying out one time properly functioning, to open one standby.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, the accompanying drawing in describing below is only
It is embodiments more of the present utility model, for those of ordinary skill in the art, before not paying creative work
Put, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the process chart of this utility model embodiment.
In figure: 1a/b: supercharging air equipment, one opens a standby configuration；2a/b: unstripped gas supercharging equipment, one opens a standby configuration；
3a/b: raw material gas purifying device, one opens a standby configuration；4: feed gas heater；5: unstripped gas blender；6: flameless catalytic oxidation is anti-
Answer device；7: product cooler；8: product separator；9: the sulfur-rich groove of cleaning mixture；10: sulfur sealed cans；11: liquid sulfur pit；12: cooling
Recirculated water force (forcing) pump；13a/b: tail gas washing tower, one opens one configures for bi serie；15a/b: continuous sulfur melting kettle, one opens one standby pair
Array configuration；16: circulation type washing trough；17: circulation washings booster；18: collecting tank.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under making creative work premise
The every other embodiment obtained, broadly falls into the scope of this utility model protection.
Embodiment
A kind of device processing low concentration hydrogen sulphide acid tail gas, including: supercharging air equipment 1a/b, unstripped gas supercharging set
Standby 2a/b, unstripped gas blender 5, raw material gas purifying device 3a/b, feed gas heater 4, flameless catalytic oxidation reactor 6, reaction
Product cooler 7, product separator 8, tail gas washing tower 13a/b, the sulfur-rich groove of cleaning mixture 9, continuous sulfur melting kettle 15a/b, circulation are washed
Wash tank 16, circulation washings booster 17, sulfur sealed cans 10, liquid sulfur pit 11, collecting tank 18, cooling circulating water force (forcing) pump 12, logical
Cross the upstream low-temp methanol after unstripped gas supercharging equipment 2a/b wash operation low concentration hydrogen sulphide acid tail gas and pass through supercharging air
The air of equipment 1a/b mixes in unstripped gas blender 5, the gas outlet of material mixer 5 and raw material gas purifying device 3a/b
Air inlet connection, the gas outlet of raw material gas purifying device 3a/b connects with the air inlet of feed gas heater 4, feed gas heater
The gas outlet of 4 connects with the air inlet of flameless catalytic oxidation reactor 6, and the gas outlet of flameless catalytic oxidation reactor 6 is by anti-
After answering product cooler 7, the charging aperture with product separator 8 connects, and the liquid outlet of product separator 8 passes through sulfur sealed cans 10 and liquid
The inlet connection of sulfur groove 11, the gas outlet of product separator 8 connects with the air inlet of tail gas washing tower 13a/b, washing tail gas
The cleaning mixture of tower 13a/b exports the inlet of groove 9 sulfur-rich with cleaning mixture and connects, and is additionally provided with tail gas on tail gas washing tower 13a/b
Outlet and water inlet, the overfall of the sulfur-rich groove of cleaning mixture 9 and the inlet circulation of circulation type washing trough 16, circulate type washing trough 16
Liquid outlet by circulation washings booster 17 connect with the inlet of tail gas washing tower 13a/b, going out of the sulfur-rich groove of cleaning mixture 9
Material mouth connects with the inlet of continuous sulfur melting kettle 15a/b, the cleaning mixture outlet of continuous sulfur melting kettle 15a/b and circulation type washing trough 16
Inlet circulation, continuous sulfur melting kettle 15a/b sulfur outlet connect with the inlet of liquid sulfur pit 11, described continuous sulfur melting kettle
15a/b is chuck sulfur melting kettle, and is provided with steam inlet and condensate outlet on chuck sulfur melting kettle, and the steam of chuck sulfur melting kettle enters
Mouth connects with the steam (vapor) outlet of product cooler 7, and the condensate outlet of chuck sulfur melting kettle connects with the inlet of collecting tank 18
Logical, the liquid outlet of collecting tank 18 is connected with the inlet of product cooler 7 by cooling circulating water force (forcing) pump 12.
In order to realize the said equipment break down time, can isolation processing problem online, and do not affect device continuous-stable
Run, supercharging air equipment 1a/b, unstripped gas supercharging equipment 2a/b, raw material gas purifying device 3a/b, tail gas washing tower 13a/b, company
Continuous sulfur melting kettle 15a/b carries out bi serie configuration, uses connected mode in parallel, and carrying out one time properly functioning, to open one standby.
Operation low concentration hydrogen sulphide acid tail gas is washed, with air or device air or device air from upstream low-temp methanol
Air the most mixed with air carries out after proportioning mixes, entering in unstripped gas blender 5 according to a certain percentage
Entering raw material gas purifying device 3a/b and carry out reacting front pretreatment of raw material, it is acid that removing upstream low-temp methanol washes operation low concentration hydrogen sulphide
The impurity such as the methanol brought in tail gas, dust, raw material gas purifying device 3a/b is equipped with bi serie, and carrying out one under nominal situation, to open one standby
Run, after running some cycles, when raw material gas purifying device 3a/b inlet outlet pressure differential is gradually increased, affect plant running load
Time, raw material gas purifying device 3a/b runs equipment and stand-by equipment can switch over, to ensure device continuous and steady operation, through pre-
The reactor feed gas processed, after feed gas heater 4 pre-heating temperature elevation to (160-280) DEG C, sends into flameless catalytic oxidation reaction
Device 6 carries out flameless catalytic oxidation reaction, and the temperature rise that course of reaction produces completes heat by product cooler 7 and boiler feedwater
Amount reclaims, and by-product low-pressure steam reduces for continuous sulfur melting kettle 15a/b, product temperature, and wherein product sulfur is by gas
State becomes liquid, carries out separating and collection process in product separator 8, separates and traps the sulfur drop got off and divide at product
Bottom device 8, liquid outlet collects and discharges, and enters sulfur sealed cans 10 by gravity flow, delivers to liquid sulfur pit 11 finally by flow by gravity,
Complete product sulfur to collect, store；The tail gas that product separator 8 separates inversely contacts at tail gas washing tower 13a/b with waste water, complete
The washing absorption process of escape sulfur powder in product tail gas in pairs；Tail gas washing tower 13a/b is equipped with bi serie, under nominal situation
Carry out one and open a received shipment row, but one occurs resistance to increase, when the blocking of sulfur powder is serious, it is possible to achieve switch online；Complete to absorb
The tail gas that washing is received can be realized qualified discharge by tail gas washing tower 13a/b top offgas outlet, quilt in tail gas washing tower 13a/b
Being discharged by cleaning mixture outlet at the bottom of tower rich in sulfur powder cleaning mixture of waste water washing absorption, is sent to the sulfur-rich groove of cleaning mixture 9, rich at cleaning mixture
Sulfur groove 9 carries out the collection rich in sulfur powder cleaning mixture and standing, and realizes cleaning mixture and Cosan primary separation, the sulfur-rich groove of cleaning mixture
In 9 liquid phases, the clarification cleaning mixture of the standing separation of top enters into circulation type washing trough 16 by overfall, and bottom deposit divides
From sulfur enter continuous sulfur melting kettle 15a/b and carry out the refined of sulfur, final sulfur enters by the way of liquid liquid is flow automatically
Liquid sulfur pit 11；Continuous sulfur melting kettle 15a/b top regenerates isolated cleaning mixture and is sent to circulate type washing trough 16, completes regeneration washing
The collection of liquid and the process of storage, washed returning to tail gas after the cleaning mixture pressure-raising after regeneration by circulation washings booster 17
Wash tower 13a/b cyclic absorption washing tail gas；The thermal source that continuous sulfur melting kettle 15a/b uses is from product cooler 7 by-product
Low-pressure steam, the condensed fluid that low-pressure steam phase transformation has produced after having done work, enter collecting tank 18 and collect storage, circulated by cooling
Return product cooler 7 after water force (forcing) pump 12 pressure-raising to use as heat transferring medium, it is achieved device low-pressure steam-Technics in Condensate System
Closed loop self-sufficiency runs, and washings only need when initial start-up and regular replenishment are lost to feed from external system.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all at this
Within the spirit of utility model and principle, any modification, equivalent substitution and improvement etc. made, should be included in this utility model
Protection domain within.
Claims (4)
1. the device processing low concentration hydrogen sulphide acid tail gas, it is characterised in that including: unstripped gas blender, unstripped gas are clean
Change device, feed gas heater, flameless catalytic oxidation reactor, product cooler, product separator, tail gas washing tower, wash
Washing the sulfur-rich groove of liquid, continuous sulfur melting kettle, circulation type washing trough, sulfur sealed cans, liquid sulfur pit, upstream low-temp methanol washes the sulfuration of operation low concentration
Hydrogen acid tail gas mixes in unstripped gas blender with air, and the gas outlet of material mixer is entered with raw material gas purifying device
QI KOU connects, and the gas outlet of raw material gas purifying device connects with the air inlet of feed gas heater, the gas outlet of feed gas heater
Connecting with the air inlet of flameless catalytic oxidation reactor, product cooler is passed through in the gas outlet of flameless catalytic oxidation reactor
Connecting with the charging aperture of product separator afterwards, the liquid outlet of product separator is connected with the inlet of liquid sulfur pit by sulfur sealed cans,
The gas outlet of product separator connects with the air inlet of tail gas washing tower, and the cleaning mixture outlet of tail gas washing tower is sulfur-rich with cleaning mixture
Groove inlet connection, tail gas washing tower is additionally provided with offgas outlet and water inlet, the overfall of the sulfur-rich groove of cleaning mixture with follow
The inlet circulation of ring type washing trough, the liquid outlet of circulation type washing trough is by circulation washings booster and tail gas washing tower
Inlet connects, and the discharging opening of the sulfur-rich groove of cleaning mixture connects with the inlet of continuous sulfur melting kettle, and the cleaning mixture of continuous sulfur melting kettle goes out
Mouth circulates with the inlet of circulation type washing trough, and the sulfur outlet of continuous sulfur melting kettle connects with the inlet of liquid sulfur pit.
2. device as claimed in claim 1, it is characterised in that also include that collecting tank, described continuous sulfur melting kettle are that chuck melts sulfur
Still, and on chuck sulfur melting kettle, it is provided with steam inlet and condensate outlet, the steam inlet of chuck sulfur melting kettle is cold with product
But the steam (vapor) outlet connection of device, the condensate outlet of chuck sulfur melting kettle connects with the inlet of collecting tank, the liquid outlet of collecting tank
Connected by the inlet of cooling circulating water force (forcing) pump with product cooler.
3. device as claimed in claim 1, it is characterised in that also include: supercharging air equipment, for entering raw material mixing
Air before device carries out supercharging.
4. device as claimed in claim 1, it is characterised in that also include: unstripped gas supercharging equipment, for mixed to entering raw material
Upstream low-temp methanol before clutch is washed operation low concentration hydrogen sulphide acid tail gas and is carried out supercharging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620635468.2U CN205700142U (en) | 2016-06-24 | 2016-06-24 | A kind of device processing low concentration hydrogen sulphide acid tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620635468.2U CN205700142U (en) | 2016-06-24 | 2016-06-24 | A kind of device processing low concentration hydrogen sulphide acid tail gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205700142U true CN205700142U (en) | 2016-11-23 |
Family
ID=57315927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620635468.2U Active CN205700142U (en) | 2016-06-24 | 2016-06-24 | A kind of device processing low concentration hydrogen sulphide acid tail gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205700142U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108144418A (en) * | 2017-12-29 | 2018-06-12 | 逸盛大化石化有限公司 | A kind of PTA devices high pressure scrubber spray process |
| CN114689789A (en) * | 2022-04-11 | 2022-07-01 | 国网浙江省电力有限公司电力科学研究院 | Flexibility is reformed transform unit oxygen boosting burning and hydrogen energy storage safety and is utilized experimental system |
-
2016
- 2016-06-24 CN CN201620635468.2U patent/CN205700142U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108144418A (en) * | 2017-12-29 | 2018-06-12 | 逸盛大化石化有限公司 | A kind of PTA devices high pressure scrubber spray process |
| CN114689789A (en) * | 2022-04-11 | 2022-07-01 | 国网浙江省电力有限公司电力科学研究院 | Flexibility is reformed transform unit oxygen boosting burning and hydrogen energy storage safety and is utilized experimental system |
| CN114689789B (en) * | 2022-04-11 | 2023-08-15 | 国网浙江省电力有限公司电力科学研究院 | Flexibility reforms transform unit oxygen boosting burning and hydrogen energy storage safety utilization experimental system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104355343B (en) | A kind of purification process for reclaiming ammonia in coal gasification waste water | |
| CN104548902B (en) | Acetylene gas purifier and technique thereof | |
| CN102815815B (en) | Method for processing acid gas alkali-wash waste liquor | |
| CN205627588U (en) | Device of little biological desulfuration of closed circulation and recovery elemental sulfur | |
| CN102992351A (en) | Method and device for purifying ammonia recovered from coal chemical industry wastewater | |
| CN103274367A (en) | Method for extracting two secondary salts from desulfurized salt-containing waste liquid of coke oven gas | |
| CN109569193A (en) | It is a kind of to absorb the sulfur method synchronous with regeneration | |
| CN205700142U (en) | A kind of device processing low concentration hydrogen sulphide acid tail gas | |
| CN205528636U (en) | Blue charcoal coal gas integrated device | |
| CN114806649A (en) | Coke oven gas complex iron desulfurization recycling process method and device | |
| CN105542874A (en) | Integrated process and device for semicoke coal gas | |
| CN205700143U (en) | A kind of low concentration hydrogen sulphide acid tail gas processing means of improvement | |
| CN108059975A (en) | Desulfuration of liquefied gas device and its technique | |
| KR100446648B1 (en) | Method for purifying coke oven gas by cooling down to freezing point of water | |
| CN205700144U (en) | A kind of low concentration hydrogen sulphide acid tail gas processing means | |
| CN105642090B (en) | A kind of Acidic Gas Treating method and device | |
| CN105731497B (en) | A kind of utilization sour gas produces the method and device of sodium acid carbonate | |
| CN105727714B (en) | A kind of process and device for producing NaHS | |
| CN107789969A (en) | The processing method and device of a kind of sour gas | |
| CN110252090A (en) | A method of sodium sulfite sulfur removal technology absorptive capacity and utilization rate are improved using triethanolamine | |
| CN110591769A (en) | Blast furnace gas catalytic desulfurization device and method | |
| CN109351126A (en) | Sulphur-containing exhaust gas processing method | |
| CN209128035U (en) | Claus tail-gas clean-up system | |
| CN105731501B (en) | A kind of utilization sour gas produces the method and device of solid sodium bicarbonate | |
| CN210752010U (en) | Desulphurization unit of sulphur process gas among hydrogen fluoride preparation process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |