CN205700144U - A kind of low concentration hydrogen sulphide acid tail gas processing means - Google Patents
A kind of low concentration hydrogen sulphide acid tail gas processing means Download PDFInfo
- Publication number
- CN205700144U CN205700144U CN201620635952.5U CN201620635952U CN205700144U CN 205700144 U CN205700144 U CN 205700144U CN 201620635952 U CN201620635952 U CN 201620635952U CN 205700144 U CN205700144 U CN 205700144U
- Authority
- CN
- China
- Prior art keywords
- gas
- outlet
- air inlet
- tail gas
- product separator
- 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
Abstract
The utility model proposes a kind of low concentration hydrogen sulphide acid tail gas processing means, including the material mixer being sequentially communicated, raw material gas purifying device, feed gas heater, flameless catalytic oxidation reactor, product cooler, product separator, tail gas washing tower, hydrogen sulfide acid tail gas mixes in unstripped gas blender with air, product separator；The sidewall of product separator is provided with air inlet, top is provided with gas outlet, bottom is provided with liquid outlet, its air inlet connects with the gas outlet of reactant cooler, its liquid outlet is connected with the inlet of liquid sulfur pit by sulfur sealed cans, is provided with air inlet in the bottom of tail gas washing tower, and top is provided with offgas outlet, bottom is provided with cleaning mixture outlet, and its air inlet connects with the gas outlet of product separator.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 low concentration hydrogen sulphide acid tail gas processing means.
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 low concentration hydrogen sulphide acid tail gas
Processing means, 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, discharge
Gas 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 low-temp methanol that processes washes the device of operation low concentration hydrogen sulphide acid tail gas, including:
Unstripped gas blender, mixes with air for upstream low-temp methanol is washed operation low concentration hydrogen sulphide acid tail gas
Close；
Raw material gas purifying device, one opens one standby, and the air inlet of raw material gas purifying device connects with the gas outlet of unstripped gas blender；
Feed gas heater, the air inlet of feed gas heater connects with the gas outlet of raw material gas purifying device；
Flameless catalytic oxidation reactor, the air inlet of flameless catalytic oxidation reactor connects with the gas outlet of feed gas heater
Logical；
Reactant cooler, is provided with air inlet, gas outlet, water inlet and steam (vapor) outlet on reactant cooler, reaction
The air inlet of thing cooler connects with the gas outlet of flameless catalytic oxidation reactor, by water inlet in reactant cooler defeated
Send boiler feedwater, make boiler feedwater and unstripped gas complete heat recovery in reactant cooler, reaction heat by-product will be reclaimed low
Pressure steam supplies low-pressure steam by steam (vapor) outlet outside factory, uses for other low-pressure steams user；
Product separator, is provided with air inlet on the sidewall of product separator, and top is provided with gas outlet, and bottom is provided with out liquid
Mouthful, the air inlet of product separator connects with the gas outlet of reactant cooler, and the liquid outlet of product separator passes through sulfur sealed cans
Connect with the inlet of liquid sulfur pit；
Tail gas washing tower, is provided with air inlet in the bottom of tail gas washing tower, and top is provided with offgas outlet, and bottom is provided with washing
Liquid exports, and one opens one standby, and the air inlet of tail gas washing tower connects with the gas outlet of product separator.
Preferably, this device is additionally provided with supercharging air equipment, one open one standby, for entering the air before material mixer
Carry out supercharging.
It is preferred that this device is additionally provided with unstripped gas supercharging equipment, one open one standby, for entering before material mixer
Trip low-temp methanol is washed operation low concentration hydrogen sulphide acid tail gas and is carried out supercharging.
The beneficial effects of the utility model are:
The in line flow process of above-mentioned washings is: product separator tail gas out is washed liquid in tail gas washing tower and inhales with washing
The sulfur powder that getter is escaped mutually, treated tail gas can qualified discharge on the spot, the dirty cleaning mixture absorbing sulfur powder send follow-up work
The supporting water treatment facilities of factory carries out sulfur-containing waste water process.It is simple that this flow process has technique, the advantage of small investment.
Product in above-mentioned technical process and equipment is by certain heat recovery mode, in conjunction with this utility model
Selected flow process: the low-pressure steam that boiler water reclaims reaction heat by-product can be selected, then supply other for low-pressure steam outside factory
Low-pressure steam user uses.
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 the in line flow process of washings, this methanol-water tower bottom of rectifying tower relief liquor is continuous
Use, do washing tail gas water of the present utility model by upstream low temperature washing device for methanol waste water recycling, it is achieved that waste water circulation returns
With, reduce utility model technique and the consumption of raw materials of device and cost.
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；10: sulfur sealed cans；11: liquid sulfur pit；13a/b: tail gas washing tower, one opens
One configures for bi serie.
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 low-temp methanol that processes washes the device of operation low concentration hydrogen sulphide acid tail gas, including: supercharging air equipment 1a/
B, unstripped gas supercharging equipment 2a/b, raw material gas purifying device 3a/b, feed gas heater 4, unstripped gas blender 5, flameless catalytic oxygen
Change reactor 6, product cooler 7, product separator 8, sulfur sealed cans 10, liquid sulfur pit 11, tail gas washing tower 13a/b, pass through
Upstream low-temp methanol after unstripped gas supercharging equipment 2a/b is washed operation low concentration hydrogen sulphide acid tail gas and is set with by supercharging air
The air of standby 1a/b mixes in unstripped gas blender 5, the air inlet of raw material gas purifying device 3a/b and unstripped gas blender 5
Gas outlet connection, the air inlet of feed gas heater 4 connects with the gas outlet of raw material gas purifying device 3a/b, flameless catalytic oxidation
The air inlet of reactor 6 connects with the gas outlet of feed gas heater 4, is provided with air inlet, gives vent to anger on reactant cooler 7
Mouth, water inlet and steam (vapor) outlet, the air inlet of reactant cooler 7 connects with the gas outlet of flameless catalytic oxidation reactor 6, logical
Cross water inlet in reactant cooler 7, carry boiler feedwater, make boiler feedwater complete in reactant cooler 7 with unstripped gas
Heat recovery, will reclaim reaction heat by-product low-pressure steam and supply low-pressure steam outside factory by steam (vapor) outlet, for other low pressure
Steam user uses, and is provided with air inlet on the sidewall of product separator 8, and top is provided with gas outlet, and bottom is provided with liquid outlet, produces
The air inlet of product separator 8 connects with the gas outlet of reactant cooler 7, and the liquid outlet of product separator 8 passes through sulfur sealed cans 10
Connecting with the inlet of liquid sulfur pit 11, be provided with air inlet in the bottom of tail gas washing tower 13a/b, top is provided with offgas outlet, the end
Portion is provided with cleaning mixture outlet, and the air inlet of tail gas washing tower 13a/b connects with the gas outlet of product separator 8.
In order to realize the said equipment break down time, can isolation processing problem online, and do not affect device continuous-stable
Running, supercharging air equipment 1a/b, unstripped gas supercharging equipment 2a/b, raw material gas purifying device 3a/b, tail gas washing tower 13a/b carry out
Bi serie configures, and 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 through pretreatment reactor feed gas through feed gas heater 4 pre-heating temperature elevation extremely
(160-280), after DEG C, send into flameless catalytic oxidation reactor 6 and carry out flameless catalytic oxidation reaction, the temperature rise that course of reaction produces
Completed outside heat recovery, and by-product low-pressure steam for factory's low-pressure steam pipe network by product cooler 7 and boiler feedwater
Use；Product temperature reduces, and wherein product sulfur is become liquid by gaseous state, separates and receive in product separator 8
Collection process, is separated and traps the sulfur drop got off liquid outlet bottom product separator 8 and collect and discharge, entered by gravity flow
Sulfur sealed cans 10, deliver to liquid sulfur pit 11 finally by flow by gravity, complete product sulfur and collect, store；Product separator 8 separates
Tail gas inversely contacts at tail gas washing tower 13a/b with waste water, completes the washing absorption mistake of escape sulfur powder in product tail gas
Journey；The tail gas completing to absorb washing receipts can be realized qualified discharge, at washing tail gas by tail gas washing tower 13a/b top offgas outlet
Being discharged by cleaning mixture outlet at the bottom of tower rich in sulfur powder cleaning mixture by waste water washing absorption in tower 13a/b, the water being sent to factory processes
Device sulfur-containing waste water treatment process processes.
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 (3)
1. a low concentration hydrogen sulphide acid tail gas processing means, it is characterised in that including:
Unstripped gas blender, mixes with air for upstream low-temp methanol is washed operation low concentration hydrogen sulphide acid tail gas；
Raw material gas purifying device, one opens one standby, and the air inlet of raw material gas purifying device connects with the gas outlet of unstripped gas blender；
Feed gas heater, the air inlet of feed gas heater connects with the gas outlet of raw material gas purifying device；
Flameless catalytic oxidation reactor, the air inlet of flameless catalytic oxidation reactor connects with the gas outlet of feed gas heater；
Reactant cooler, is provided with air inlet, gas outlet, water inlet and steam (vapor) outlet on reactant cooler, and reactant is cold
But the air inlet of device connects with the gas outlet of flameless catalytic oxidation reactor；
Product separator, is provided with air inlet on the sidewall of product separator, and top is provided with gas outlet, and bottom is provided with liquid outlet,
The air inlet of product separator connects with the gas outlet of reactant cooler, and the liquid outlet of product separator passes through sulfur sealed cans and liquid
The inlet connection of sulfur groove；
Tail gas washing tower, is provided with air inlet in the bottom of tail gas washing tower, and top is provided with offgas outlet, and bottom is provided with cleaning mixture and goes out
Mouthful, one opens one standby, and the air inlet of tail gas washing tower connects with the gas outlet of product separator.
2. as claimed in claim 1 device, it is characterised in that also include: supercharging air equipment, one to open one standby, for former to entering
Air before feed mixer carries out supercharging.
3. as claimed in claim 1 or 2 device, it is characterised in that also include: unstripped gas supercharging equipment, one to open one standby, for right
Upstream low-temp methanol before entrance material mixer 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 |
|---|---|---|---|
| CN201620635952.5U CN205700144U (en) | 2016-06-24 | 2016-06-24 | A kind of low concentration hydrogen sulphide acid tail gas processing means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620635952.5U CN205700144U (en) | 2016-06-24 | 2016-06-24 | A kind of low concentration hydrogen sulphide acid tail gas processing means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205700144U true CN205700144U (en) | 2016-11-23 |
Family
ID=57316027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620635952.5U Active CN205700144U (en) | 2016-06-24 | 2016-06-24 | A kind of low concentration hydrogen sulphide acid tail gas processing means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205700144U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109573959A (en) * | 2019-01-04 | 2019-04-05 | 科洋环境工程（上海）有限公司 | The multi-stage oxidizing sulphuric acid plant and acid-making process of hydrogen sulfide sour gas |
-
2016
- 2016-06-24 CN CN201620635952.5U patent/CN205700144U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109573959A (en) * | 2019-01-04 | 2019-04-05 | 科洋环境工程（上海）有限公司 | The multi-stage oxidizing sulphuric acid plant and acid-making process of hydrogen sulfide sour gas |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103303872B (en) | System device and method for recycling sulfur dioxide from fume to prepare sulfur | |
| CN104355343B (en) | A kind of purification process for reclaiming ammonia in coal gasification waste water | |
| CN102134519B (en) | Combined process for natural gas desulfurization with high resource utilization ratio and good environmental protection effect | |
| CN104624033A (en) | Combination method for deep desulfurization of liquefied gas | |
| CN105521687A (en) | Method for by-producing sulphur from hydrogen sulfide gas produced during hydrogenation of coal tar | |
| CN109569193A (en) | It is a kind of to absorb the sulfur method synchronous with regeneration | |
| CN104119946B (en) | A kind of catalytic cracking flue gas desulfurization and Acidic Gas Treating technique | |
| CN105505480A (en) | Desulfurization purification system applicable to coke oven gas | |
| CN110484308A (en) | A kind of blast furnace gas BKRP desulphurization system | |
| CN205700144U (en) | A kind of low concentration hydrogen sulphide acid tail gas processing means | |
| CN101564624A (en) | Swirl reinforcing method and device for removing hydrogen sulfide by gas | |
| CN205700142U (en) | A kind of device processing low concentration hydrogen sulphide acid tail gas | |
| CN105542874A (en) | Integrated process and device for semicoke coal gas | |
| CN108910829B (en) | Acid gas sulfur recovery system and acid gas sulfur recovery method | |
| 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 | |
| CN205700143U (en) | A kind of low concentration hydrogen sulphide acid tail gas processing means of improvement | |
| CN105642090B (en) | A kind of Acidic Gas Treating method and device | |
| CN107789969A (en) | The processing method and device of a kind of sour gas | |
| CN105542873A (en) | A purification process system for coke oven gas | |
| CN110252090A (en) | A method of sodium sulfite sulfur removal technology absorptive capacity and utilization rate are improved using triethanolamine | |
| 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 | |
| CN105727715B (en) | A kind of Acidic Gas Treating technique and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |