CN207645803U - A kind of sulfur recovery unit for carbon disulphide production technique - Google Patents
A kind of sulfur recovery unit for carbon disulphide production technique Download PDFInfo
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- CN207645803U CN207645803U CN201721562729.3U CN201721562729U CN207645803U CN 207645803 U CN207645803 U CN 207645803U CN 201721562729 U CN201721562729 U CN 201721562729U CN 207645803 U CN207645803 U CN 207645803U
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Abstract
The utility model discloses a kind of sulfur recovery units for carbon disulphide production technique, including acid gas combustion furnace, the Process Gas outlet connection level-one sulphur cooler of acid gas combustion furnace, the Process Gas outlet connection level-one claus reaction device of level-one sulphur cooler, the Process Gas outlet of level-one claus reaction device is connect with two level sulphur cooler, the Process Gas outlet connection level-one reheater of two level sulphur cooler, level-one reheater outlet connection two level claus reaction device, the Process Gas outlet connection three-level sulphur cooler of two level claus reaction device, the outlet of three-level sulphur cooler Process Gas is connect with two level reheater, the Process Gas gas outlet of two level reheater connects selective oxidation reaction device, the gas outlet of selective oxidation reaction device connects level Four sulphur cooler, sulphur device is caught in level Four sulphur cooler Process Gas outlet connection；The present apparatus is simple in structure, and sulphur recovery efficiency is high, and tail gas realizes qualified discharge, has recycled the energy, realizes the sustainable development of circular economy.
Description
Technical field
The utility model belongs to chemical equipment technical field, and in particular to a kind of sulphur for carbon disulphide production technique returns
Receiving apparatus.
Background technology
Carbon disulfide is a kind of important industrial chemicals, at present mainly using coal bed gas and melting sulphur as two sulphur of waste
Change carbon, production process includes mainly that raw material melts sulphuring treatment unit, raw material coal bed gas purifying treating unit, coal bed gas and molten sulfur
Reaction member, the refined unit of carbon disulfide, sulfur recovery unit and tail gas desulfurization unit etc., the device often produce 1 ton of curing
Carbon produces about 900 kilograms of hydrogen sulfide gas simultaneously.These hydrogen sulfide gas mainly use at Crouse's recovery technology of sulfur
Reason, the sulphur of sulfur recovery output, which is sent to carbon disulphide production device, to be continuing with, and sulfur recovery includes mainly：Sour gas burns, and urges
Change oxidation and simple substance sulfur recovery, tail gas burning and desulfurization process etc..
Traditional three-level Crouse's technology uses the list of the method process for producing of three claus reaction devices and multi-stage condensing
Matter sulphur, total sulfur recovery is 95%~96% or so.It is increasingly strict with environmental requirement in recent years, sulfur recovery unit is discharged
SO2The requirement of amount is increasingly stringenter, GB31571-2015《Petro chemical industry pollutant emission standard》Provide SO2Discharge limit
Value is 100mg/Nm3, therefore, in carbon disulphide production using traditional three-level Claus unit sulfur recovery unit be difficult meet it is new
Environmental requirement, realize circular economy sustainable development.
A kind for the treatment of process and equipment for carbon disulphide production Process Gas is disclosed in patent CN106829875A, is adopted
With two level Crouse's+SCOT techniques：Hydrogen sulfide containing sour gas, fuel gas and air burn at 950~1400 DEG C, generation
Process Gas carries out catalysis reaction with 170~350 DEG C in converter, and the Process Gas that catalysis reaction generates enters after isolating sulphur
Sulfur dioxide, elemental sulfur etc. in tail gas is reduced to hydrogen sulfide by hydrogenation reactor, and tempreture organic sulphur hydrolysis is hydrogen sulfide, it is laggard
Enter amine liquid circulation absorption system and absorb hydrogen sulfide, the tail gas purified through amine absorption enters incinerator and burned, discharged.The work
Although total sulfur recovery rate is high for skill, but flow is complicated, and heat utilization ratio is low, investment and high energy consumption, complicated for operation.
Invention content
In order to overcome the deficiencies of the prior art, the utility model provides a kind of sulfur recovery dress for carbon disulphide production technique
It sets, it is high by using the device sulphur recovery efficiency, and tail gas realizes qualified discharge, reduces environmental pollution, returns to greatest extent
The energy has been received, the sustainable development of circular economy is realized.
The purpose of this utility model is achieved through the following technical solutions：
A kind of sulfur recovery unit for carbon disulphide production technique, including for H2S acid gas and the combustion of the acid gas of air burning
Stove is burnt, the acid gas combustion furnace is equipped with high-temp mixing valve and the Process Gas outlet of acid gas combustion furnace connects one through steam generator
The Process Gas outlet of grade sulphur cooler, level-one sulphur cooler connects level-one claus reaction device, the level-one gram by high-temp mixing valve
The Process Gas outlet of Louth reactor is connect with two level sulphur cooler, the Process Gas outlet connection level-one reheater of two level sulphur cooler,
The level-one reheater outlet connection two level claus reaction device, the Process Gas outlet connection three-level sulphur of two level claus reaction device
Cooler, the outlet of three-level sulphur cooler Process Gas are connect by air event gas mixer with two level reheater, the mistake of two level reheater
Journey gas gas outlet connection selective oxidation reaction device, the gas outlet connection level Four sulphur cooler of selective oxidation reaction device, described four
Sulphur device, the offgas outlet connection exhaust treatment system for catching sulphur device are caught in the outlet connection of grade sulphur cooler Process Gas；
The exhaust treatment system includes flue gas-tail gas heat exchanger, incinerator, incinerator steam generator, desalted water-cigarette
Gas heat exchanger, the offgas outlet for catching sulphur device are connect with flue gas-tail gas heat exchanger, the offgas outlet of flue gas-tail gas heat exchanger
Incinerator is connected, the exhanst gas outlet of the incinerator is connect by steam generator with flue gas-tail gas heat exchanger, flue gas-tail gas
The exhanst gas outlet of heat exchanger connects desalted water-flue gas heat-exchange unit；
The level-one sulphur cooler, two level sulphur cooler, three-level sulphur cooler, level Four sulphur cooler, catch sulphur device molten sulfur outlet it is logical
Molten sulfur envelope connection molten sulfur pond is crossed, is used for carbon disulphide production unit.
Further, the two level sulphur cooler, three-level sulphur cooler are same sulphur cooler.
The beneficial effects of the utility model：
（1）The utility model uses " combustion furnace+I and II claus reaction device+Selective Oxidation device " combining form,
And by the technology first Application in carbon disulphide production industry, by sulfur recovery rate by the 95~96% of traditional three-level Crouse
It has been increased to 98% or more, while voluminous sulphur, has increased exhaust treatment system, reduces pollutant SO2Content, reduce
The energy has been recycled in the whole investment of carbon disulfide device to greatest extent, realizes the sustainable development of circular economy；
（2）Process Gas temperature into level-one claus reaction device is automatically controlled by high-temp mixing valve, and high temperature admixes reheating side
Formula has temperature flexible adjustment, and easy to operate, equipment is simple, and investment and operating cost are relatively low；
（3）In exhaust treatment system, the medium temperature flue gas that incinerator steam generator is gone out and the low temperature tail into incinerator
Gas enters incinerator burning, improves heat utilization ratio, save in flue gas-tail gas heat exchanger heat exchange, the tail gas after heat exchange heating
Fuel consumption.
The utility model is simple in structure, and sulphur recovery efficiency is high, and tail gas realizes qualified discharge, reduces environmental pollution,
The energy has been recycled to greatest extent, realizes the sustainable development of circular economy.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model.
In figure：1-acid gas combustion furnace；2-steam generators；3-level-one sulphur coolers；4-level-one claus reaction devices；
5-two level sulphur coolers；6-three-level sulphur coolers；7-level-one reheaters；8-two level claus reaction devices；9-air event gas are mixed
Clutch；10-two level reheaters；11-selective oxidation reaction devices；12-level Four sulphur coolers；13-catch sulphur device；14-tail gas-
Flue gas heat-exchange unit；15-incinerators；16-incinerator steam generators；17-calcination stove air blasts；18-desalted waters-flue gas changes
Hot device；19-molten sulfurs seal；20-incinerator fans；21-high-temp mixing valves.
Specific implementation mode
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, other drawings may also be obtained based on these drawings.
As shown in Figure 1, a kind of sulfur recovery unit for carbon disulphide production technique, including for H2S acid gas and air combustion
The acid gas combustion furnace 1 of burning, the acid gas combustion furnace 1 be equipped with the Process Gas outlet of high-temp mixing valve 21 and acid gas combustion furnace 1 with
Steam generator 2 connects, the outlet connection level-one sulphur cooler 3 of the steam generator 2, the Process Gas outlet of level-one sulphur cooler 3
Level-one claus reaction device 4, the Process Gas outlet of the level-one claus reaction device 4 and two level are connected by high-temp mixing valve 21
Sulphur cooler 5 connects, the Process Gas outlet connection level-one reheater 7 of two level sulphur cooler 5, the outlet of level-one reheater 7 connection two
Grade claus reaction device 8, the Process Gas outlet connection three-level sulphur cooler 6 of two level claus reaction device 8,6 process of three-level sulphur cooler
Gas outlet is connect by air event gas mixer 9 with two level reheater 10, the Process Gas gas outlet connection of two level reheater 10
Selective oxidation reaction device 11, the gas outlet connection level Four sulphur cooler 12 of selective oxidation reaction device 11, the level Four sulphur cooler
Sulphur device 13, the offgas outlet connection exhaust treatment system for catching sulphur device 13 are caught in 12 Process Gas outlet connection；
The exhaust treatment system includes flue gas-tail gas heat exchanger 14, incinerator 15, incinerator steam generator 16, is taken off
Brine-flue gas heat-exchange unit 18, the offgas outlet for catching sulphur device 13 are connect with flue gas-tail gas heat exchanger 14, flue gas-tail gas heat exchange
The offgas outlet of device 14 connects incinerator 15, and the exhanst gas outlet of the incinerator 15 is by steam generator 16 and flue gas-tail gas
Heat exchanger 14 connects, and the exhanst gas outlet of flue gas-tail gas heat exchanger 14 connects desalted water-flue gas heat-exchange unit 18；
The level-one sulphur cooler 3, two level sulphur cooler 5, three-level sulphur cooler 6, level Four sulphur cooler 12, the molten sulfur of catching sulphur device 13 go out
Mouth by 19 connection molten sulfur pond of molten sulfur envelope, is used for carbon disulphide production unit.
The two level sulphur cooler, three-level sulphur cooler are same sulphur cooler.
When specifically used, the air of the sour gas and incinerator fan 20 that come from carbon bisulfide refining unit enters
Acid gas combustion furnace 1, ignition temperature are controlled at 1200 DEG C or so, Process Gas after burning through steam generator 2 be cooled to 340 DEG C~
350 DEG C enter level-one sulphur cooler 3, and the middle pressure steam of by-product 3.8Mpa (G), Process Gas are cooled to 170 DEG C or so Recovered sulphur,
The Process Gas for going out level-one sulphur cooler 3 is warming up to after the high temperature blending valve 21 on acid gas combustion furnace 1 is mixed with pyroprocess gas
250 DEG C enter level-one claus reaction device 4, go out the Process Gas of level-one claus reaction device 4 and enter two level sulphur cooler 5 with 320 DEG C
170 DEG C or so Recovered sulphur are cooled to, Process Gas is heated to 210 DEG C or so into two level Crouse by level-one reheater 7 later
Reactor 8 is reacted, and the Process Gas after reaction enters three-level sulphur cooler 6 with 230 DEG C and is cooled to 170 DEG C or so Recovered sulphur,
Enter two level reheater 10 after the mixing of air event gas mixer 9 with oxidation air later to steam by the middle pressure of 3.8Mpa (G)
Vapour enters selection oxidation reactor 11 after being heated to 200 DEG C, 270 DEG C of gas after reaction carries out sulphur by level Four sulphur cooler 12
Condensation, while the low low-pressure saturated steam of by-product 0.1Mpa (G), Process Gas carry out sulphur content from level-one sulphur is cold by catching sulphur device 13
Device 3, three-level sulphur cooler 6, level Four sulphur cooler 12, catches the Molten sulphur influent that 13 condensation separation of sulphur device is got off at two level sulphur cooler 5
Sulphur envelope 19, then flow into molten sulfur pond and used for carbon disulphide production unit；Go out the sulphur tail gas processed of 135 DEG C or so of sulphur trap 13 with
340 DEG C of the flue gas that incinerator steam generator 16 comes out exchanges heat in tail gas-flue gas heat-exchange unit 14 enters incinerator to 240 DEG C
15, fume afterheat is recycled, for being preheated to sulphur tail gas processed, reduces incinerator energy consumption, tail gas-cigarette
Gas heat exchanger 14 comes out the air of the tail gas and calcination stove air blast 17 preheated, fuel gas in incinerator 15, in tail gas
Simple substance S, H2The complete oxidations such as S are SO2, go out the flue gas of 260 DEG C or so of tail gas-flue gas heat-exchange unit again through desalted water-flue gas heat-exchange unit
Enter wet desulphurization unit after the 18 desalted water heat exchange coolings come with battery limit (BL) with 140 DEG C or so.Into the tail of wet desulphurization unit
SO in gas2Neat stress after being reacted with absorbent is discharged into air, SO in smoke evacuation after demister removes water droplet through chimney2Contain
Measure ＜ 100mg/Nm3, meet newest environmental requirement.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection domain within.
Claims (3)
1. a kind of sulfur recovery unit for carbon disulphide production technique, which is characterized in that including for H2S acid gas and air burning
Acid gas combustion furnace, the Process Gas that the acid gas combustion furnace is equipped with high-temp mixing valve and acid gas combustion furnace exports through steam generation
Device connects level-one sulphur cooler, and the Process Gas outlet of level-one sulphur cooler connects level-one claus reaction device, institute by high-temp mixing valve
The Process Gas outlet for stating level-one claus reaction device is connect with two level sulphur cooler, the Process Gas outlet connection level-one of two level sulphur cooler
Reheater, the level-one reheater outlet connection two level claus reaction device, the Process Gas outlet of two level claus reaction device connects
Three-level sulphur cooler is connect, the outlet of three-level sulphur cooler Process Gas is connect by air event gas mixer with two level reheater, and two level is again
The Process Gas gas outlet of hot device connects selective oxidation reaction device, and the gas outlet connection level Four sulphur of selective oxidation reaction device is cold
Sulphur device, the offgas outlet connection exhaust treatment system for catching sulphur device are caught in device, level Four sulphur cooler Process Gas outlet connection；
The exhaust treatment system includes flue gas-tail gas heat exchanger, incinerator, incinerator steam generator, and desalted water-flue gas changes
Hot device, the offgas outlet for catching sulphur device are connect with flue gas-tail gas heat exchanger, the offgas outlet connection of flue gas-tail gas heat exchanger
The exhanst gas outlet of incinerator, the incinerator is connect by steam generator with flue gas-tail gas heat exchanger, flue gas-tail gas heat exchange
The exhanst gas outlet of device connects desalted water-flue gas heat-exchange unit.
2. a kind of sulfur recovery unit for carbon disulphide production technique according to claim 1, which is characterized in that described
Level-one sulphur cooler, three-level sulphur cooler, level Four sulphur cooler, catches the molten sulfur outlet of sulphur device by molten sulfur envelope connection at two level sulphur cooler
Molten sulfur pond is used for carbon disulphide production unit.
3. a kind of sulfur recovery unit for carbon disulphide production technique according to claim 1, which is characterized in that described
Two level sulphur cooler, three-level sulphur cooler are same sulphur cooler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721562729.3U CN207645803U (en) | 2017-11-21 | 2017-11-21 | A kind of sulfur recovery unit for carbon disulphide production technique |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721562729.3U CN207645803U (en) | 2017-11-21 | 2017-11-21 | A kind of sulfur recovery unit for carbon disulphide production technique |
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| CN207645803U true CN207645803U (en) | 2018-07-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115259102A (en) * | 2022-07-28 | 2022-11-01 | 成都铭炬环保工程技术有限公司 | Process and equipment for preparing concentrated sulfur dioxide flue gas and silicate clinker by flue gas splitting |
-
2017
- 2017-11-21 CN CN201721562729.3U patent/CN207645803U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115259102A (en) * | 2022-07-28 | 2022-11-01 | 成都铭炬环保工程技术有限公司 | Process and equipment for preparing concentrated sulfur dioxide flue gas and silicate clinker by flue gas splitting |
| CN115259102B (en) * | 2022-07-28 | 2023-11-28 | 成都铭炬环保工程技术有限公司 | Process and equipment for preparing sulfur dioxide concentrated flue gas and silicate clinker by flue gas diversion |
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