CN208684403U - A kind of partial oxidation produces the device of suitable hydrogen-carbon ratio synthesis gas - Google Patents
A kind of partial oxidation produces the device of suitable hydrogen-carbon ratio synthesis gas Download PDFInfo
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- CN208684403U CN208684403U CN201820877867.9U CN201820877867U CN208684403U CN 208684403 U CN208684403 U CN 208684403U CN 201820877867 U CN201820877867 U CN 201820877867U CN 208684403 U CN208684403 U CN 208684403U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
A kind of partial oxidation disclosed by the utility model produces the device of suitable hydrogen-carbon ratio synthesis gas comprising water-circulating pump after non-catalytic partial oxidation furnace, waste heat boiler, waste heat boiler water preheater, steam superheater, gaseous hydrocarbon preheater, oxidant preheater, desulfurizer, non-sulphur-resistant conversion regulating device, waste heat boiler water preheater, product synthesis gas pressure-raising device, product synthesis gas heat recovery apparatus, scrubbing tower, condenser and washing.The utility model whole flow process more optimizes, and operating condition more mitigates, and equipment dependability is further increased, device can by-product high value superheated steam, improve full-range energy-saving effect and economic performance.
Description
Technical field
The utility model relates to natural gas, oven gas, refinery gas, gasifier gas, process tail gas or other be rich in
The gas of the hydro carbons such as methane, ethane be raw material, the mixed gas of hydrogen making and carbon monoxide, production polyurethane (TDI, MDI,
PC, PE etc.), synthetic oil, ethylene glycol, methanol and the synthesis chemical fields such as ammonia, in particular to one kind using gaseous hydrocarbon as raw material, with
Air, oxygen-enriched air, pure oxygen produce suitable hydrogen carbon using non-catalytic partial oxidation (POX) using steam as gasifying agent for oxidant
Than synthesis gas or the device of hydrogen.
Background technique
Synthesis gas (CO+H2) as important industrial chemicals, in chemical industrial field, it is mainly used to prepare polyurethane
(TDI, MDI, PC, PE etc.), oil, synthesize a series of important chemistry such as ammonia, liquid fuel, methanol, ethers and chemical fertilizer at ethylene glycol
Product, therefore have a large amount of demand to synthesis gas, this also leads to the industrial requirement to bigger production capacity reburner.
In the technique that gaseous hydrocarbons prepare synthesis gas, non-catalytic partial oxidation technology (POX) is used as one of which,
Domestic synthesis gas conversion field will be more and more important.Traditional non-catalytic partial oxidation technology has multiple commercial plants and reliably transports
Row, but there is also certain deficiencies:
1. reburner outlet process temperature degree is up to 1200-1500 DEG C, syngas outlet pipeline and direct-connected useless pot are run
Condition is harsh, causes device structure extremely complex.
2. carbon accumulation must use vertical disc in heat exchange tube wall, the waste heat boiler as recuperation of heat key equipment in order to prevent
Useless pot is managed, its structure is complicated, bulky dimensions, expensive, it is also necessary to which water circulating pump cools down its small tube sheet, considerably increases behaviour
The complexity and producing cost of work.
3. process gas outlet temperature can not flexible modulation control because the structure of vertical coil waste heat boiler itself limits
System, thus traditional non-catalytic partial oxidation technology can only by-product saturated vapor, overheat can not be carried out as power steam and used.
4. because non-catalytic partial oxidation technique may generate a small amount of carbon black in process of production, therefore device is transported in underload
When row, the operation elasticity of operating difficulties, device is poor.
5. it pair is the traditional non-catalytic partial oxidation products gas hydrogen-carbon ratio of raw material 1.7~1.8 or so using natural gas, it can not
Flexible modulation.
Utility model content
The technical problem to be solved by the utility model is to be directed to existing traditional non-catalytic partial oxidation technology in gas
State hydrocarbon conversion prepares above-mentioned technical problem present in synthesis gas process and provides one kind using gaseous hydrocarbon as raw material, with air, richness
Oxygen air, pure oxygen are oxidant, using steam as gasifying agent, produce suitable hydrogen-carbon ratio using non-catalytic partial oxidation (POX) and synthesize
The device of gas.
Technical problem to be solved in the utility model can be achieved through the following technical solutions:
A kind of partial oxidation produces the device of suitable hydrogen-carbon ratio synthesis gas, comprising:
One non-catalytic partial oxidation furnace has a burner, one first product synthesis gas on the non-catalytic partial oxidation furnace
Outlet, circulation product synthesis gas entrance, the first product syngas outlet are connected to the circulation product synthesis gas entrance, institute
State burner on the one hand connect with one end of one first oxidant feed-line, the other end of the first oxidant feed-line and
Oxidation exit port on one oxidant preheater connects, and the oxidant inlet on the oxidant preheater is defeated by the second oxidant
Pipeline is sent to connect oxidizer source；On the other hand the burner is connect with one end of one first gaseous hydrocarbon feed-line；
One waste heat boiler and a primary waste heat boiler water preheater are provided with the first superheated steam on the waste heat boiler
Outlet, primary waste heat boiler water inlet, the first product synthesis gas entrance, the second product syngas outlet；First waste heat
Be provided on boiler feed water preheater the first superheated steam entrance, the outlet of the second superheated steam, primary waste heat boiler water out,
Secondary waste heat boiler water inlet, the first superheated steam outlet are connected to the first superheated steam entrance, and described first
Waste heat boiler is connected to water inlet with the primary waste heat boiler with water out, the first product synthesis gas entrance and described the
The connection of one product syngas outlet；
One steam superheater is provided with the second product synthesis gas entrance, third product synthesis gas on the steam superheater
Outlet, the second superheated steam entrance and the outlet of third superheated steam, the second product synthesis gas entrance and second product
Syngas outlet connection, the second superheated steam entrance and second superheated steam outlet are conveyed by the first superheated steam
Pipeline connection, the third superheated steam outlet are connected to one second superheated steam pipe line, and the third superheated steam goes out
The superheated steam that mouth comes out sends out battery limit (BL) by the second superheated steam pipe line；
One gaseous hydrocarbon preheater is provided with gaseous hydrocarbon inlet, gaseous hydrocarbon outlet, third product on the gaseous hydrocarbon preheater
Synthesis gas entrance and the 4th product syngas outlet, the gaseous hydrocarbon inlet connect gaseous hydrocarbon by the second gaseous hydrocarbon feed-line
Source, the gaseous hydrocarbon outlet are connect with the other end of the first gaseous hydrocarbon feed-line；The third product synthesis gas entrance and institute
It states and is connected between third product syngas outlet by the first product synthesis gas feed-line；
One desulfurizer is provided with the 4th product synthesis gas entrance on the desulfurizer and the 5th product synthesis gas goes out
Mouthful, the 4th product synthesis gas entrance is connected by the second product synthesis gas feed-line and the 4th product syngas outlet
It is logical；
One non-sulphur-resistant conversion regulating device is provided with the 5th product synthesis gas entrance in the non-sulphur-resistant conversion regulating device
With the 6th product syngas outlet, the 5th product synthesis gas entrance is produced by third product synthesis gas feed-line and the 5th
The connection of product syngas outlet；The third product synthesis gas feed-line also passes through third superheated steam pipe line and the second mistake
Hot steam outlet；
One secondary waste heat boiler water preheater, the secondary waste heat boiler are closed with the 6th product is provided on water preheater
At gas entrance, the 7th product syngas outlet, secondary waste heat boiler water out, third waste heat boiler water inlet, described
On the one hand six product synthesis gas entrances pass through the 4th product synthesis gas feed-line and are connected to the 5th product syngas outlet,
On the other hand it is connected to by the 5th product synthesis gas feed-line with the 6th product syngas outlet；Second waste heat boiler
Furnace is connected to water feed-line with the secondary waste heat boiler with water inlet with water out by primary waste heat boiler, the third
Waste heat boiler connects the connection of waste heat boiler water supply source by secondary waste heat boiler water feed-line with water inlet；
One product synthesis gas pressure-raising device is provided with circulation product gas outlet and the on the product synthesis gas pressure-raising device
Seven product synthesis gas entrances, the 7th product synthesis gas entrance pass through one the 6th product synthesis gas feed-line and the described 7th
The connection of product syngas outlet；The circulation product gas outlet is entered by circulation product gas feed-line with the circulation product gas
Mouth connection；
One product synthesis gas heat recovery apparatus has a cooling water inlet, cold on the product synthesis gas heat recovery apparatus
But water out, the 8th product synthesis gas entrance, the 8th product syngas outlet, the cooling water inlet and cooling water outlet difference
It is connect by the first cooling water-circulation pipe and the second cooling water-circulation pipe with cooling water source；The 8th product synthesis gas enters
Mouth is connected to by the 7th product synthesis gas feed-line with the 7th product syngas outlet；
One scrubbing tower is provided with final products syngas outlet at the top of the scrubbing tower, and top is provided with washing water and enters
Mouthful, lower part is provided with the 9th product synthesis gas entrance, and bottom is provided with water out after washing, the final products syngas outlet
It is connected to a final products synthesis gas feed-line, is led to by the final products synthesis gas that the final products syngas outlet comes out
It crosses final products synthesis gas feed-line and sends out battery limit (BL)；The 9th product synthesis gas entrance is conveyed by the 7th product synthesis gas
Pipeline is connected to the 8th product syngas outlet；The washing water inlet connects washing water by washing water feed-line
Source；Battery limit (BL) is discharged by water discharge pipeline after the washing that connect with water out after the washing in water after washing.
In a preferred embodiment of the utility model, the non-catalytic partial oxidation furnace is pure oxygen non-catalytic part oxygen
Change furnace or oxygen-enriched non-catalytic partial oxidation furnace.
In a preferred embodiment of the utility model, the waste heat boiler is horizontal thin tubesheet compact waste heat boiler
Furnace.
In a preferred embodiment of the utility model, the waste heat boiler uses one section or segmental structure.
In a preferred embodiment of the utility model, the desulfurizer is iron oxide absorbing reaction device, zinc oxide
The combination of one or both of absorbing reaction device.
In a preferred embodiment of the utility model, the product synthesis gas pressure-raising device be recycle gas compressor or
Jet pump.
It further include water-circulating pump after a condenser and a washing in a preferred embodiment of the utility model, it is described
Condenser series connection is after washing on water discharge pipeline, and the entrance of water-circulating pump passes through water-circulating pipe after the first washing after the washing
Line is connected to water discharge pipeline after the washing, and the outlet of water-circulating pump passes through water-circulation pipe after the second washing after the washing
It is connected to the described first cooling water-circulation pipe.
Due to using technical solution as above, the utility model is passed through using by the suitable product synthesis gas of portion temperature
The method of the outlet non-catalytic partial oxidation furnace POX is sent after circulator pressure-raising back to, significantly to reduce non-catalytic partial oxidation furnace
POX outlet temperature mitigates the service condition that non-catalytic partial oxidation furnace POX exports direct-connected two key equipments of waste heat boiler, greatly
Amplitude improves device reliability of operation.After using product synthesis gas circulation technology, waste heat boiler can use horizontal light wall pipe
Plate compact gives up pot, and device structure is compact, eliminates boiler feedwater circulating pump, water circular flow is relatively reliable, and waste heat boiler
Heater outlet temperature can be controlled with flexible modulation.Therefore it is straight after saturated vapor is superheated to 380-480 DEG C by settable steam superheater
It connects as power steam for driving turbine, to effectively raise the energy-saving effect and economic performance of device.
The utility model use recycle gas compressor or jet pump, methanation and gasifying powder coal device have it is multiple can
By operational performance, pressure ratio is low, and power is small, and the investment cost and operating cost of equipment are all very low.Because using gaseous hydrocarbon for raw material,
The service condition of recycle gas compressor is much better than it in the application such as coal gasification and methanation in this technique, it is contemplated that it is in this work
Performance in skill will be more preferable, runs also relatively reliable.
The utility model make using non-catalytic partial oxidation (POX) Prospect of Gasification Technology hydrogen making and carbon monoxide synthetic gas or
Process more economical of the hydrogen for devices such as polyurethane, natural gas liquefaction, ethylene glycol is reasonable, makes full use of its pyroreaction
The characteristics of the high economic value of by-product superheated steam, while overcoming high-temperature operation bring appointed condition harsh again, equipment investment
Valuableness, it is complicated for operation the problems such as.
It is had the advantages that using the utility model
(1) service condition is mitigated, device structure is simplified
In order to guarantee the complete conversion of methane in unstripped gas, traditional non-catalytic partial oxidation process outlet requires reaction flat
Weighing apparatus temperature is up to 1200~1500 DEG C, and the requirement to pipeline and equipment is very harsh.Waste heat boiler needs to design using double tubesheet,
And the temperature for also needing to use boiler water pump forced circulation to reduce small tube sheet, equipment difficult design, structure is complicated, forces to follow
Ring pumps it may also happen that failure leads to device parking maintenance.Using after this technique, because of the product synthesis for having portion temperature suitable
Gas is recycled back to the outlet non-catalytic partial oxidation furnace POX, and temperature, which can according to need, after mixing is reduced to 700~900 DEG C, adopts
It can meet demand with conventional high-temperature service structure, it is no longer necessary to which boiler water pump carries out forced circulation, and the structure of equipment obtains
Simplification, equipment expenditure of construction can be greatly lowered.
(2) it increases economic efficiency
(2.1) traditional non-catalytic partial oxidation technique is using the useless pot of vertical coil, and its structure is complicated, bulky dimensions.And
Because being designed using spiral coil, single series amplification is difficult, and slightly large-scale device just needs two or more useless pots in parallel
Enough heat exchange areas could be provided and guarantee heat recovery.And the process of the utility model is used, waste heat boiler can be adopted
With common for horizontal thin tubesheet compact waste heat boiler structure, simple and compact equipment structure has and much runs on a large scale
Achievement, it is very simple and reliable.Equipment expenditure of construction reduces, and attached structure platform etc. is all simplified, and can be substantially reduced dress
The fixed investment set.
(2.3) significantly more economic effect be also embodied in this technology can according to need by-product high pressure or in press through hot steaming
Vapour.The utility model is adopted as horizontal thin tubesheet compact waste heat boiler and generates steam, can flexible modulation control synthesis gas go out and be
The temperature of horizontal thin tubesheet compact waste heat boiler, therefore steam superheater import has needed for enough heats will be steam heated to
Temperature.Overcome traditional handicraft can only by-product low value saturated vapor, and the shortcomings that high value superheated steam can not be generated, show
The economic performance for improving device write.
(3) more flexible operating flexibility and regulative mode
(3.1) traditional non-catalytic partial oxidation technique is easy in the equipment such as waste heat boiler because underload gas velocity is lower
Carbon distribution, so be difficult to operate at low load for a long time, and after this technique setting recycle gas compressor, pass through the gas for the equipment such as pot of giving up
Amount gas velocity is adjustable, and operating flexibility can greatly improve.
(3.2) the utility model is provided with small conversion reaction in steam superheater to the suitable position of temperature between water scrubber
Device uses all or part of non-sulfur resistant conversion process can be with the hydrogen-carbon ratio of flexible modulation product synthesis gas to adapt to downstream section
Demand.
(4) more environmentally friendly process flow setting
Often contain a certain amount of sulphur in products material gas, and larger to be difficult to the organic sulfur accounting removed weight.Tradition is urged
Change desulfurization technology before partial oxidation ATR technique generallys use, unstripped gas needs to preheat through unstripped gas before entering ATR reburner, cobalt molybdenum
Add hydrogen, just can be carried out steam conversion after iron oxide/zinc oxide absorption plant desulfurization, process configuration is complicated, high investment.It is non-to urge
Changing partial oxidation POX technique, there is also similar disadvantages according to preceding sulfur removal technology.And as using sulfur removal technology after MDEA, then it deposits
In the environmental issue of Acidic Gas Treating, economic performance is also poor.Meanwhile because synthesis gas contains a small amount of sulphur, transformation selection is difficult, non-resistance to
Sulphur changes catalyst because easily poisoning can not handle sulfurous gas, and sulphur-resistant conversion has certain requirement to sulfur content, sulfur content
If too low, sulphur-resistant conversion also will be unable to normal operating.In this process, because through non-catalytic partial oxidation furnace POX conversion after,
Organic sulfur has been converted into inorganic sulfur in unstripped gas, therefore only need to be in the suitable position of non-catalytic partial oxidation furnace POX outlet temperature
One iron oxide/zinc oxide absorbing reaction device is set i.e. and can guarantee that sulfur content is up to standard, it is cheap non-so as to directly adopt
Sulphur-resistant conversion adjusts the hydrogen-carbon ratio of synthesis gas.
The utility model answers shielded innovation point:
(1) configuration of entire technical process, equipment and process described in utility model content and technical characteristic.
(2) suitable temperature position extraction section product synthesis gas is mentioned through circulator between steam superheater and water scrubber
Pressure returns to the configuration mode that the outlet non-catalytic partial oxidation furnace (POX) carries out cold shock.
(3) configuration of the useless pot of horizontal compact directly is added in pure oxygen or oxygen-enriched non-catalytic partial oxidation furnace (POX) outlet
Mode.
(4) waste heat boiler is using one section or the configuration mode of segment design.
(5) the process configuration mode of useless pot outlet superheat saturated vapor is arranged in steam superheater.
(6) the suitable temperature level of conversion product gas installs iron oxide/zinc oxide reactor progress after steam superheater
The process configuration mode of desulfurization.
(7) after partial desulfurization synthesis gas using non-sulphur-resistant conversion adjust product synthesis gas hydrogen-carbon ratio process configuration side
Formula.
(8) water scrubber is set to remove the configuration mode of ammonia and carbon black micro in synthesis gas.
Hydrogeneous and carbon monoxide synthesis gas is produced using the utility model, whole flow process more optimizes, and operating condition is more
To mitigate, equipment dependability further increased, device can by-product high value superheated steam, improve full-range energy conservation
Effect and economic performance:
Using the utility model, origin operation is harsh, structure is complicated, the waste heat boiler of bulky dimensions be readily modified as it is horizontal compact
Type equipment, device structure is simple, reliable for operation, and fixed investment reduces.
Using the utility model, device can produce the high value superheated steam for directly driving turbine, rationally recycle height
Potential temperature thermal energy improves the economic performance of process.
Using the utility model, a non-sulfur-tolerant water gas shift device only need to be added, it can flexible modulation product synthesis gas
Hydrogen-carbon ratio, it is no longer necessary to conversion section and attached heat exchange equipment be separately provided, whole flow process is significantly simplified.
Using the utility model, recycle gas compressor can use to adjust synthesis gas and pass through the stream of the equipment such as waste heat boiler
Flow velocity is measured, guarantees that carbon distribution will not occur for equipment, has been obviously improved the operating flexibility of process.
Using the utility model, desulfurization operations obtain simplification, the Gu Mujiaqing workshop section of conventional method and MDEA desulfurization work
Section can be cancelled, and device is more environmentally-friendly, solves the problems, such as Acidic Gas Treating.
Detailed description of the invention
Fig. 1 is, using air, oxygen-enriched air, pure oxygen as oxidant, using steam as gasifying agent, to use using gaseous hydrocarbon as raw material
Non-catalytic partial oxidation (POX) produces the schematic illustration of the device of suitable hydrogen-carbon ratio synthesis gas.
Specific embodiment
It is shown in figure using gaseous hydrocarbon as raw material referring to Fig. 1, it is gasification, oxygen with air, oxygen-enriched air, pure oxygen or steam
Agent produces the device of suitable hydrogen-carbon ratio synthesis gas or hydrogen, including Non-catalytic partial oxygen using non-catalytic partial oxidation (POX)
Change furnace R101, waste heat boiler E101, waste heat boiler water preheater V102, steam superheater E102, gaseous hydrocarbon preheater E013,
Oxidant preheater E107, desulfurizer R101A/B, non-sulphur-resistant conversion regulating device R103, waste heat boiler water preheater
E104, product synthesis gas pressure-raising device C101, product synthesis gas heat recovery apparatus E105, scrubbing tower T101, condenser E106 and
Water-circulating pump P101A/B after washing.
Non-catalytic partial oxidation furnace R101 is pure oxygen non-catalytic partial oxidation furnace or oxygen-enriched non-catalytic partial oxidation furnace.It is non-
There is a burner X101, product syngas outlet 1, circulation product synthesis gas entrance 2, product closes on catalyzing part oxidation furnace R101
It is connected at gas outlet 1 with circulation product synthesis gas entrance 2, on the one hand burner X101 connects with one end of an oxidant feed-line 3
It connects, the other end of oxidant feed-line 3 is connect with the oxidant outlet 4 on oxidant preheater E102, oxidant preheater
Oxidant inlet 5 on E102 connects oxidizer source by oxidant feed-line 6；Burner X101 another aspect and a gaseous state
One end of hydrocarbon feed-line 7 connects；
Waste heat boiler E101 is horizontal thin tubesheet compact waste heat boiler, using one section or segmental structure.Waste heat boiler
It is provided with superheated steam on E101 and exports 8, waste heat boiler water inlet 9, product synthesis gas entrance 10, product syngas outlet
11.Product synthesis gas entrance 10 is connected to product syngas outlet 1.
Waste heat boiler be provided on water preheater V102 superheated steam entrance 12, superheated steam export 13, waste heat boiler
With water out 14, waste heat boiler water inlet 15.
Superheated steam outlet 8 is connected to superheated steam entrance 12, and waste heat boiler is with water inlet 9 and waste heat boiler water out
14 connections.
Product synthesis gas entrance 16, product syngas outlet 17, superheated steam entrance are provided on steam superheater E102
18 and superheated steam outlet 19, product synthesis gas entrance 16 is connected to product syngas outlet 11, superheated steam entrance 18 and mistake
Hot steam outlet 13 is connected to by superheated steam pipe line 20, and superheated steam outlet 19 connects with superheated steam pipe line 21
Logical, the superheated steam that superheated steam outlet 19 comes out sends out battery limit (BL) by superheated steam pipe line 21.
Gaseous hydrocarbon inlet 22 is provided on gaseous hydrocarbon preheater E103, gaseous hydrocarbon exports 23,24 and of product synthesis gas entrance
Product syngas outlet 25, gaseous hydrocarbon inlet 22 by gaseous hydrocarbon feed-line 26 connect gaseous hydrocarbon source, gaseous hydrocarbon outlet 23 with
The other end of gaseous hydrocarbon feed-line 7 is connected to；It is closed between product synthesis gas entrance 24 and product syngas outlet 17 by product
It is connected at letter shoot line 27.
Desulfurizer R101A/B is the group of one or both of iron oxide absorbing reaction device, zinc oxide absorbing reaction device
It closes.Product synthesis gas entrance 28 and product syngas outlet 29, product synthesis gas entrance are provided on desulfurizer R101A/B
28 are connected to by product synthesis gas feed-line 30 with product syngas outlet 25.
It is provided with product synthesis gas entrance 31 and product syngas outlet 32 on non-sulphur-resistant conversion regulating device R103, produces
Product synthesis gas entrance 31 is connected to by product synthesis gas feed-line 33 with product syngas outlet 29；Product synthesizes letter shoot
Line 33 is also connected to by superheated steam pipe line 34 with superheated steam outlet 13.
Waste heat boiler be provided on water preheater E104 product synthesis gas entrance 35, the 7th product syngas outlet 36,
Waste heat boiler water out 37, waste heat boiler water inlet 38,35 one side of product synthesis gas entrance are defeated by product synthesis gas
It send pipeline 39 to be connected to product syngas outlet 32, is on the other hand gone out by product synthesis gas feed-line 40 with product synthesis gas
Mouth 29 is connected to.Waste heat boiler is connected with water out 37 by waste heat boiler water feed-line 41 and waste heat boiler water inlet 12
Logical, waste heat boiler connects waste heat boiler water supply source by waste heat boiler water feed-line 42 with water inlet 38 and connects；
Product synthesis gas pressure-raising device C101 is recycle gas compressor or jet pump.On product synthesis gas pressure-raising device C101
It is provided with circulation product gas outlet 44 and product synthesis gas entrance 43, product synthesis gas entrance 43 is conveyed by product synthesis gas
Pipeline 45 is connected to product syngas outlet 36；It recycles product gas outlet 44 and passes through circulation product gas feed-line 46 and circulation
Product gas entrance 2 is connected to.
There is a cooling water inlet 47, cooling water outlet 48, product synthesis gas on product synthesis gas heat recovery apparatus E105
Entrance 49, product syngas outlet 50, cooling water inlet 47 and cooling water outlet 48 pass through cooling 51 He of water-circulation pipe respectively
Cooling water-circulation pipe 52 is connect with cooling water source；Cooling water source is the desalination water source outside battery limit (BL).
Product synthesis gas entrance 49 is connected to by product synthesis gas feed-line 53 with product syngas outlet 36.
Final products syngas outlet 54 is provided at the top of scrubbing tower T101, top is provided with washing water inlet 55, under
Portion is provided with product synthesis gas entrance 56, and bottom is provided with water out 57 after washing, and final products syngas outlet 54 and one is most
Finished product synthesis gas feed-line 58 is connected to, and is passed through by the final products synthesis gas that final products syngas outlet 54 comes out final
Product synthesis gas feed-line 58 sends out battery limit (BL)；Product synthesis gas entrance 56 is closed by product synthesis gas feed-line 59 and product
At 50 connection of gas outlet；Washing water inlet 55 passes through the connection washing of washing water feed-line 60 water source；Washing water source is also battery limit (BL)
Outer desalination water source.Water is by being discharged battery limit (BL) with water discharge pipeline 61 after the washing that water out 57 is connect after washing after washing.
Condenser E106 series connection is after washing on water discharge pipeline 61, and the entrance of water-circulating pump P101A/B passes through after washing
Water-circulation pipe 62 is connected to water discharge pipeline 32 after washing after washing, and the outlet of water-circulating pump P101A/B is by washing after washing
Rear water-circulation pipe 63 is washed to be connected to cooling water-circulation pipe 60.
The device for the purpose of natural gas liquefaction, that is, GTL illustrates the course of work of the utility model below:
Non-catalytic partial oxidation furnace R101, waste heat boiler E101, waste heat boiler water preheater V102, steam superheater
E102, gaseous hydrocarbon preheater E013, oxidant preheater E107, desulfurizer R101A/B, non-sulphur-resistant conversion regulating device
R103, waste heat boiler water preheater E104, product synthesis gas pressure-raising device C101, product synthesis gas heat recovery apparatus E105,
Scrubbing tower T101, condenser E106 and washing after water-circulating pump P101A/B.
Use the natural gas of sulfur content 20mg/Nm3 for raw material, using oxygen as oxidant.From out-of-bounds natural gas and
Oxygen is sent into the burning of non-catalytic partial oxidation furnace R101 after gaseous hydrocarbon preheater E013, oxidant preheater E107 preheating respectively
Mouth X101 simultaneously reacts at a high temperature of up to 1200~1500 DEG C, and is come from product synthesis gas pressure-raising device C101 (circulating air
Compressor) circulation product gas Quench to 700~900 DEG C, rear non-catalytic partial oxidation furnace of sending out carries out heat recovery.
The product synthesis gas of partial oxidation furnace sequentially enters out presses in waste heat boiler E101 and steam superheater E102 by-product
Superheated steam.The product synthesis gas of steam superheater E102 is cooled to about 250~350 DEG C after first preheating natural gas out, then
It is sent into desulfurizer R101A/B desulfurization, then whole/partially synthetic gas are adjusted to institute into non-sulphur-resistant conversion regulating device R103
Need hydrogen-carbon ratio.
The synthesis gas for meeting hydrogen-carbon ratio requirement further recycles heat with water preheater E104 through waste heat boiler and is cooled to about
After 150~200 DEG C, a part is through product synthesis gas pressure-raising device C101 (recycle gas compressor) pressure-raising as circulation product gas
Return to non-catalytic partial oxidation furnace R101, another part enters after product synthesis gas heat recovery apparatus E105 further recycles heat
Go out battery limit (BL) as product conversion pneumatic transmission after water scrubber T101 washs deamination decarburization.T101 is washed using from desalted water out-of-bounds
Wash the Ammonia or carbon black in synthesis gas.
Composition such as the following table 1 through the utility model treated final products conversion gas:
Table 1
After the flow processing that the utility model is illustrated, sulfur-bearing, hydrogen-carbon ratio do not directly reach defined product synthesis gas
Between 1.7-2.1, it is not required to that transformation is in addition arranged or carbon compensator adjusts hydrogen-carbon ratio；This process also by-product 40Barg-
100barg, 380 DEG C -450 DEG C of superheated steam is to drive steam turbine to use.
Claims (7)
1. the device that a kind of partial oxidation produces suitable hydrogen-carbon ratio synthesis gas characterized by comprising
One non-catalytic partial oxidation furnace, have on the non-catalytic partial oxidation furnace burner, one first product syngas outlet,
Product synthesis gas entrance is recycled, the first product syngas outlet is connected to the circulation product synthesis gas entrance, the burning
On the one hand mouth is connect with one end of one first oxidant feed-line, the other end and an oxygen of the first oxidant feed-line
Oxidation exit port on agent preheater connects, and the oxidant inlet on the oxidant preheater passes through the second oxidant delivery pipe
Line connects oxidizer source；On the other hand the burner is connect with one end of one first gaseous hydrocarbon feed-line；
One waste heat boiler and a primary waste heat boiler water preheater are provided with the first superheated steam on the waste heat boiler and go out
Mouth, primary waste heat boiler water inlet, the first product synthesis gas entrance, the second product syngas outlet；First waste heat boiler
Furnace is with being provided with the first superheated steam entrance, the outlet of the second superheated steam, primary waste heat boiler water out, on water preheater
Two waste heat boiler water inlets, the first superheated steam outlet are connected to the first superheated steam entrance, and described first is useless
Heat boiler is connected to water inlet with the primary waste heat boiler with water out, the first product synthesis gas entrance and described first
The connection of product syngas outlet；
One steam superheater, be provided on the steam superheater the second product synthesis gas entrance, third product syngas outlet,
Second superheated steam entrance and the outlet of third superheated steam, the second product synthesis gas entrance and the second product synthesis gas
Outlet, the second superheated steam entrance and second superheated steam outlet are connected by the first superheated steam pipe line
Logical, the third superheated steam outlet is connected to one second superheated steam pipe line, and the third superheated steam exports out
Superheated steam by the second superheated steam pipe line send out battery limit (BL)；
One gaseous hydrocarbon preheater is provided with gaseous hydrocarbon inlet, gaseous hydrocarbon outlet, the synthesis of third product on the gaseous hydrocarbon preheater
Gas entrance and the 4th product syngas outlet, the gaseous hydrocarbon inlet connect gaseous hydrocarbon source by the second gaseous hydrocarbon feed-line,
The gaseous hydrocarbon outlet is connect with the other end of the first gaseous hydrocarbon feed-line；The third product synthesis gas entrance and described the
It is connected between three product syngas outlets by the first product synthesis gas feed-line；
One desulfurizer is provided with the 4th product synthesis gas entrance and the 5th product syngas outlet, institute on the desulfurizer
The 4th product synthesis gas entrance is stated to be connected to by the second product synthesis gas feed-line with the 4th product syngas outlet；
One non-sulphur-resistant conversion regulating device is provided with the 5th product synthesis gas entrance and in the non-sulphur-resistant conversion regulating device
Six product syngas outlets, the 5th product synthesis gas entrance are closed by third product synthesis gas feed-line and the 5th product
At gas outlet；The third product synthesis gas feed-line also passes through third superheated steam pipe line and the second overheat is steamed
Vapor outlet connection；
One secondary waste heat boiler water preheater, the secondary waste heat boiler is with being provided with the 6th product synthesis gas on water preheater
Entrance, the 7th product syngas outlet, secondary waste heat boiler water out, third waste heat boiler water inlet, the described 6th produces
On the one hand product synthesis gas entrance passes through the 4th product synthesis gas feed-line and is connected to the 5th product syngas outlet, another
Aspect is connected to by the 5th product synthesis gas feed-line with the 6th product syngas outlet；The secondary waste heat boiler is used
Water out is connected to water feed-line with the secondary waste heat boiler with water inlet by primary waste heat boiler, the third waste heat
Boiler feed water entrance connects the connection of waste heat boiler water supply source by secondary waste heat boiler water feed-line；
One product synthesis gas pressure-raising device is provided with circulation product gas outlet and the 7th on the product synthesis gas pressure-raising device and produces
Product synthesis gas entrance, the 7th product synthesis gas entrance pass through one the 6th product synthesis gas feed-line and the 7th product
Syngas outlet connection；The circulation product gas outlet is connected to by circulation product gas feed-line with circulation product gas entrance；
One product synthesis gas heat recovery apparatus has a cooling water inlet, cooling water on the product synthesis gas heat recovery apparatus
Outlet, the 8th product synthesis gas entrance, the 8th product syngas outlet, the cooling water inlet and cooling water outlet pass through respectively
First cooling water-circulation pipe and the second cooling water-circulation pipe are connect with cooling water source；The 8th product synthesis gas entrance is logical
The 7th product synthesis gas feed-line is crossed to be connected to the 7th product syngas outlet；
One scrubbing tower is provided with final products syngas outlet at the top of the scrubbing tower, and top is provided with washing water inlet, under
Portion is provided with the 9th product synthesis gas entrance, and bottom is provided with water out after washing, the final products syngas outlet and one
The connection of final products synthesis gas feed-line, the final products synthesis gas come out by the final products syngas outlet is by most
Finished product synthesis gas feed-line sends out battery limit (BL)；The 9th product synthesis gas entrance passes through the 7th product synthesis gas feed-line
It is connected to the 8th product syngas outlet；The washing water inlet passes through washing water feed-line connection washing water source；It washes
It washs rear water and battery limit (BL) is discharged by water discharge pipeline after the washing that connect with water out after the washing.
2. the device that a kind of partial oxidation as described in claim 1 produces suitable hydrogen-carbon ratio synthesis gas, which is characterized in that described
Non-catalytic partial oxidation furnace is pure oxygen non-catalytic partial oxidation furnace or oxygen-enriched non-catalytic partial oxidation furnace.
3. the device that a kind of partial oxidation as described in claim 1 produces suitable hydrogen-carbon ratio synthesis gas, which is characterized in that described
Waste heat boiler is horizontal thin tubesheet compact waste heat boiler.
4. the device that a kind of partial oxidation as claimed in claim 3 produces suitable hydrogen-carbon ratio synthesis gas, which is characterized in that described
Waste heat boiler uses one section or segmental structure.
5. the device that a kind of partial oxidation as described in claim 1 produces suitable hydrogen-carbon ratio synthesis gas, which is characterized in that described
Desulfurizer is the combination of one or both of iron oxide absorbing reaction device, zinc oxide absorbing reaction device.
6. the device that a kind of partial oxidation as described in claim 1 produces suitable hydrogen-carbon ratio synthesis gas, which is characterized in that described
Product synthesis gas pressure-raising device is recycle gas compressor or jet pump.
7. the device that a kind of partial oxidation as described in claim 1 produces suitable hydrogen-carbon ratio synthesis gas, which is characterized in that also wrap
Include water-circulating pump after a condenser and a washing, condenser series connection is after washing on water discharge pipeline, water after the washing
The entrance of circulating pump is connected to by water-circulation pipe after the first washing with water discharge pipeline after the washing, and water follows after the washing
The outlet of ring pump is connected to by water-circulation pipe after the second washing with the described first cooling water-circulation pipe.
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| CN2018204495100 | 2018-04-02 | ||
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112158801A (en) * | 2020-09-16 | 2021-01-01 | 宁波中科远东催化工程技术有限公司 | Non-catalytic oxidation system and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112158801A (en) * | 2020-09-16 | 2021-01-01 | 宁波中科远东催化工程技术有限公司 | Non-catalytic oxidation system and method |
| CN112158801B (en) * | 2020-09-16 | 2022-06-07 | 宁波中科远东催化工程技术有限公司 | Non-catalytic oxidation system and method |
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