CN101993730B - Multifunctional energy system based on appropriate conversion of chemical energy of fossil fuel - Google Patents
Multifunctional energy system based on appropriate conversion of chemical energy of fossil fuel Download PDFInfo
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- CN101993730B CN101993730B CN200910090472XA CN200910090472A CN101993730B CN 101993730 B CN101993730 B CN 101993730B CN 200910090472X A CN200910090472X A CN 200910090472XA CN 200910090472 A CN200910090472 A CN 200910090472A CN 101993730 B CN101993730 B CN 101993730B
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
- Y02E20/18—Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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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
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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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- 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
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Abstract
The invention discloses a multifunctional energy system based on the appropriate conversion of chemical energy of fossil fuel, which comprises a synthetic gas preparation and afterheat recovery subsystem for appropriately converting coal and natural gas into high temperature synthetic gas respectively through a partial gasification and reforming unit, cooling and then conveying the high temperature synthetic gas to a chemical product synthesizing and refining subsystem, and simultaneously conveying the generated high temperature steam to a power generation subsystem; a chemical product synthesizing and refining subsystem for pressurizing and conveying the received high temperature synthetic gas to a chemical product synthesis reactor for synthesizing the chemical product, and then obtaining the refined chemical product through a refining unit; and a power generation subsystem for converting the unconverted synthetic gas in the chemical product synthesizing and refining subsystem and the high temperature steam from the afterheat recovery subsystem into electric energy. According to the invention, the problems that complete gasification of coal and total reforming of natural gas can lead to large irreversible loss, the equipment is large and the cost is high are solved, the efficiency of the system is enhanced and the investment on system equipment is lowered.
Description
Technical field
The present invention relates to the energy source and power technical field, specifically a kind of multifunctional energy resource system that transforms based on the fossil oil chemical energy such as coal and Sweet natural gas appropriateness.
Background technology
The fossil oils such as coal and Sweet natural gas are mainly used in chemical industry and electric power generation system at present.Coal is mostly by the coal power station production steam that directly burns, again pushing turbine generating of steam, and not only efficient is on the low side for the direct combustion power generation method of coal, and seriously polluted.Recently, gasification is considered to a technology that application prospect is arranged very much, and coal changes into synthetic gas by gasification first, and (main component is CO and H
2), not only can be used as combined cycle fuel, improve efficiency of energy utilization, reduce and pollute, can also be as the raw material of Chemical Manufacture.The coal pursuit high carbon conversions that is gasified totally so that vapourizing furnace is bulky, is invested highly, has seriously limited the large-scale application of Coal Gasification Technology.The coal partial gasification provides a solution, and in the partial gasification process, the rich hydrogen composition that chemically reactive is high can promptly be converted into synthetic gas, and the lower rich carbon component of chemically reactive changes into semicoke.By this method, the vapourizing furnace volume can significantly reduce.The coal partial gasification can be used for power generation system, is vaporized chemical mainly with air, and technical difficult points is the high-temperature synthesis gas purifying method.But rare document utilizes method research to what the partial gasification synthetic gas prepared Chemicals.
Sweet natural gas is the main fossil oil of another kind of electric power and Chemical Manufacture.In combined cycle, natural gas straight is connected in the combustion chamber and burns, burning
Loss accounts for greatly whole circulation
Half of loss.In chemical process, Sweet natural gas must at first become synthetic gas by methane/steam reforming reaction with conversion of natural gas.Because reforming reaction needs higher temperature, usually above 900 ℃, about 33% Sweet natural gas need in the reforming furnace internal combustion, provide hot environment.Because the size of reforming furnace is large, the equipment price of reforming reactor can be very high.In recent years proposed partial oxidation and the autothermal reforming method of methane, these methods have been avoided the middle wall type high temperature heat transfer of traditional reforming method process, structure of reactor is greatly simplified, but these methods are still immature, and need to set up air separation plant.
Consider the problem of existence in the traditional industry production, the present invention proposes a kind of multifunctional energy resource system that transforms based on the fossil oil chemical energy such as coal and Sweet natural gas appropriateness.This system has realized that coal carries out appropriateness according to its component chemical activity and transforms, coal, water vapor and oxygen carry out the partial gasification reaction in vapourizing furnace, high-activity component can be converted into synthetic gas fast, because coal is Partial Conversion, the size of vapourizing furnace is significantly reduced.About 50% coal changes into synthetic gas, remains the needed heat of reforming reaction that unconverted composition (semicoke) burning provides methane/steam, and like this, Sweet natural gas and coke have obtained comprehensive utilization.Reforming reaction also is the appropriateness reaction, and the transformation efficiency of methane is reduced to 66.5% by 92.5%, and reforming temperature is reduced to 800 ℃ by 950 ℃, and the reforming reactor size is reduced.Change into methyl alcohol with a suitable ratio (lower than traditional chemical process) afterwards by the rich carbon synthetic gas of coal partial gasification and the hydrogen-rich synthetic gas mixing of gas renormalizing.This system has adopted part methyl alcohol synthetic, and about 47% active ingredient has changed into methyl alcohol in the virgin gas, decrease synthetic circulation ratio, reduced compression work.At last, unconverted synthetic gas is as the fuel of combined cycle generation.
In a word, the multifunctional energy resource system that fossil oil chemical energy appropriateness provided by the invention transforms when improving energy utilization rate, has reduced the facility investment of system.Fuel chemical energy obtains effective economic utilization.Result of study shows, compares with a minute product system, and multifunction system can multiple electric 10～15% under equal fuel consumption and methyl alcohol output condition.
Summary of the invention
The technical problem that (one) will solve
In view of this, main purpose of the present invention is to provide a kind of multifunctional energy resource system based on coal and the conversion of Sweet natural gas appropriateness, irreversible loss is large when solving that coal is gasified totally and Sweet natural gas is all reformed, the problem of the huge cost costliness of equipment, to improve the efficient of system, reduce the system device investment.
(2) technical scheme
For achieving the above object, the invention provides a kind of multifunctional energy resource system that transforms based on fossil oil chemical energy appropriateness, this system comprises the synthetic gas preparation and synthesizes and refining subsystem and power generation sub-system with waste heat recovery subsystem, Chemicals, wherein:
Synthetic gas preparation and waste heat recovery subsystem, be used for coal and Sweet natural gas are changed into high-temperature synthesis gas by partial gasification and reformer unit appropriateness respectively, with flowing to the synthetic and refining subsystem of Chemicals after this high-temperature synthesis gas cooling, simultaneously the high-temperature steam that produces is flowed to power generation sub-system;
Synthetic and the refining subsystem of Chemicals, the high-temperature synthesis gas that is used for receiving is pressed and delivered to the Chemicals synthesis reactor, synthetic Chemicals, and then the Chemicals that obtain making with extra care through refined unit, the unconverted gas that discharges in the Chemicals building-up process flows to power generation sub-system and is used after the recovery;
Power generation sub-system, be used for changing into electric energy output with the unconverted synthetic gas of refining subsystem and from the high-temperature steam of waste heat recovery subsystem with Chemicals are synthetic, provide process steam for synthetic gas preparation and Chemicals are synthetic with refining subsystem simultaneously.
Preferably, described synthetic gas preparation comprises coal/pure oxygen partial gasification stove, coal-char combustion reforming reactor and waste-heat recovery device at least with the waste heat recovery subsystem, the part gasification reaction occurs and carries out coal gasification course generation synthetic gas in coal, pure oxygen and water vapor in this coal/pure oxygen partial gasification stove, non-reacted parts changes into semicoke, this semicoke generation heat that burns outside the reaction tubes of coal-char combustion reforming reactor inside is for Sweet natural gas and the catalyst surface generation reforming reaction of water vapor in reaction tubes; The synthetic gas of the synthetic gas that coal gasification course generates and reforming reaction preparation, the waste heat of the two reclaims through waste-heat recovery device, produces simultaneously superheated vapour.
Preferably, this coal gasification course is that appropriateness transforms, the component that chemically reactive wherein is higher is converted into synthetic gas, and coal is adjusted by changing pure oxygen input, steam input and reaction times at the efficiency of carbon conversion of gasification, and setting range is 20%～70%.
Preferably, the rich carbon monoxide of this synthetic gas, and reformation synthetic gas hydrogen rich gas, two kinds of synthetic gas mix in certain proportion, and it is synthetic to be conducive to follow-up Chemicals.
Preferably, the temperature of this reforming reaction is controlled in more than or equal to 550 ℃, and the reforming reaction steam/hydrocarbons ratio is 2 to 5, and the reforming reaction pressure-controlling is 0.2 to 2MPa, and the transformation efficiency of methane can be adjusted by changing temperature of reaction in the reforming reaction.
Preferably, the parameter of the superheated vapour of this waste-heat recovery device production is identical with the parameter of steam turbine entrance in the power generation sub-system.
Preferably, the synthetic gas that coal gasification course generates mixes with the synthetic gas of reforming reaction preparation, utilizes the rich carbon characteristic of synthetic gas and the rich hydrogen characteristic of synthetic gas, adjusts flexibly the ratio of carbon-hydrogen of gas mixture.
Preferably, this synthetic gas preparation further comprises ash disposal and FGD desulfurizer with the waste heat recovery subsystem, the semicoke fume afterheat that produces that burns outside the reaction tubes of coal-char combustion reforming reactor inside reclaims by waste-heat recovery device, produce steam and preheated burning air, low-temperature flue gas removes sulphur through desulfurizer first, and then enter atmosphere, be sent to steam turbine power generation behind the superheated vapour of waste-heat recovery device production.
Preferably, described Chemicals are synthesized and are comprised synthesizer with refining subsystem, separate and refined unit, synthesizer is converted into the alligatoring chemical product with the gas mixture of coal gas and synthetic gas through the Chemicals building-up process, and separation and refined unit are used for improving Chemicals purity and quality.
Preferably, this Chemicals building-up process is converted into Chemicals according to the chemically reactive of gas composition with the active high component of synthetic gas, and the component that activity is low is exported to power generation sub-system and acted as a fuel.
Preferably, the part unreacting gas is sneaked into fresh synthesis gas after pressurizeing in this Chemicals building-up process, and circulation ratio is controlled at below 3.
Preferably, described Chemicals are synthetic comprises methyl alcohol synthesizer, separator and rectification cell with refining subsystem; The methyl alcohol synthesizer changes into methyl alcohol with synthetic gas, and separator separates thick methyl alcohol with synthetic gas, and the refining crude methanol that rectification cell then obtains separator becomes pure methyl alcohol.
Preferably, described Chemicals are synthetic to be converted into methyl alcohol with refining subsystem with active ingredient appropriateness in the synthetic gas, and separator is circulated back to the methyl alcohol synthesizer with the part unreacted synthesis gas, and all the other unreacted synthesis gas are sent to the power generation sub-system generating that acts as a fuel.
Preferably, described power generation sub-system comprises a power generation assembly at least.
Preferably, described power generation assembly is the power generation assembly of Gas-steam Combined Cycle, comprises internal combustion turbine, waste heat boiler and steam turbine, is used for the chemical energy of fuel and the heat energy of steam are converted into electric energy.
(3) beneficial effect
Can find out that from technique scheme the present invention has following beneficial effect:
1, this multifunctional energy resource system that transforms based on fossil oil chemical energy appropriateness provided by the invention, overcome in the single Sweet natural gas base Chemicals production system Sweet natural gas directly burning reforming reaction heat is provided, and direct burning of coal utilized the drawback of method in traditional coal power station, make the fossil oil chemical energy obtain more taking full advantage of, significantly improved the efficient of system, system is produced under the condition of like products (Chemicals and electricity), and system saves fossil oil more than 10%.
2, the appropriate multifunctional energy resource system that transforms of this novel fossil oil chemical energy provided by the invention, gasification, gas renormalizing and residual neat recovering system are optimized combination, replace Sweet natural gas to provide gas renormalizing needed heat with coal partial gasification product (semicoke), fuel natural gas full entry reforming reaction originally makes Sweet natural gas and coal obtain more rational utilization.The multifunctional energy resource system that novel fossil oil chemical energy appropriateness transforms is for the fossil oils such as coal, Sweet natural gas provide a kind of more effective and reasonable novel method of utilizing.
3, the appropriate multifunctional energy resource system that transforms of this novel fossil oil chemical energy provided by the invention, absorbed the advantage of coal partial gasification, only has the higher component gasification of chemically reactive in the coal, efficiency of carbon conversion is 30%～70%, coal partial gasification pure oxygen consumption significantly reduces, and the merit that air separation unit consumes reduces; For example when efficiency of carbon conversion is 50%, coal partial gasification oxygen-consumption only for be gasified totally about 20%.To pursue high conversion rate different from traditional chemical producing system, and synthetic gas suitably is converted into Chemicals in the system, and circulation ratio can reduce 50%～70%, and circulation gas consumes the loop compression merit and reduces over half.
4, the appropriate multifunctional energy resource system that transforms of this novel fossil oil chemical energy provided by the invention, the coal partial gasification has reduced the vapourizing furnace size, Sweet natural gas is partly reformed so that reformer apparatus is also reduced, and the synthetic gas Partial Conversion becomes Chemicals that the synthesis reactor equipment volume is significantly reduced in the synthesis reactor.Therefore, system that the present invention carries can reduce the facility investment of system.
Description of drawings
Fig. 1 is the structural representation based on the appropriate multifunctional energy resource system that transforms of fossil oil chemical energy provided by the invention;
Fig. 2 is the schema based on the appropriate methyl alcohol electric power co system that transforms of fossil oil chemical energy provided by the invention;
Each parts reaches and is labeled as accordingly among Fig. 2: the 1-air separation unit; 2-partial gasification stove; 3,6,8,9,10,12,13,14,15,17,20,23-interchanger; The 4-fly-ash separator; The 5-desulfurizer; The 7-roasting kiln; The 11-steam reformer reactors; 16,18,19-synthesic gas compressor; 21,30-pump; 22-methyl alcohol synthesizer; The 24-separator; The 25-rectifying tower; The 26-pneumatic plant; The 27-combustion chamber; The 28-internal combustion turbine; The 29-waste heat boiler; The 31-condenser; The 32-steam turbine.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in more detail.
Fig. 1 is the multifunctional energy resource system structural representation that transforms based on fossil oil chemical energy appropriateness provided by the invention, wherein,
Coal carries out the partial gasification reaction at the partial gasification stove with oxygen and water vapor from air separation unit, generates synthetic gas and semicoke.Sweet natural gas and water vapor enter in the reaction tubes of reforming reactor, show the generation reforming reaction at catalyzer, and appropriateness transforms and generates synthetic gas, and semicoke also is transported to reforming reactor simultaneously, burns outside reaction tubes with air, for reforming reaction provides reaction heat.Synthetic gas and synthetic gas enter waste-heat recovery device, after cooled synthetic gas purifies through refining plant, mix with synthetic gas flow to chemical energy synthetic with refining subsystem, produce Chemicals, unreacted synthetic gas acts as a fuel and offers power generation sub-system.The steam part that waste-heat recovery device produces provides coal supply partial gasification and gas renormalizing as outside the oxygenant, and all the other all offer power generation sub-system.Power generation sub-system is combined cycle generating unit, comprises internal combustion turbine, waste heat boiler and steam turbine, is used for unconverted synthetic gas and high-temperature steam are changed into electric energy.
Fig. 2 is the schema based on the appropriate methyl alcohol electric power co system that transforms of fossil oil chemical energy provided by the invention, and this system comprises the synthetic gas preparation and synthesizes and refining subsystem and power generation sub-system with waste heat recovery subsystem, Chemicals, wherein:
Refer again to Fig. 2, the upper left side is synthetic gas preparation and waste heat recovery subsystem, air separation unit 1 is delivered to coal partial gasification stove 2 with the oxygen of separating, therein coal generation part gasification reaction, the high temperature synthetic gas that generates passes through respectively dust removing units 4 and desulfurization unit 5 and water cooler 6 after cooling off by interchanger 3, remaining semicoke is delivered to roasting kiln 7 provides methane steam reforming required heat, the synthetic gas that steam methane is partly reformed and generated, through interchanger (12,13,14,15,17) mixes with synthetic gas that gasification obtains and after pneumatic plant 16 pressurization, then enter Chemicals synthetic with refining subsystem, the high-temperature steam of simultaneously interchanger generation is delivered to power generation sub-system and is generated electricity.Mixed synthetic gas is through pneumatic plant (18,19) enter methyl alcohol synthesizer 22 after the pressurization, the synthetic gas Partial Conversion becomes methyl alcohol, deliver to separator 24 after the condensation, the thick methyl alcohol of separating is delivered to rectifying tower 25 and is obtained pure methyl alcohol, the methyl alcohol synthesizer is returned in the circulation of a unreacted synthetic gas part, and all the other deliver to the power generation sub-system combustion power generation.The gas turbine high temperature smoke evacuation enters waste heat boiler, the production high pressure superheated steam, low-temperature smoke extraction is discharged in the environment, superheated vapour is sent into the steam turbine acting, turbine discharge is after condenser 31 condensations, and condensed water is sent into interchanger (14,8) and waste heat boiler 29 after pump 30 boosts, produce high pressure superheated steam, finish the steam side working cycle.
The described embodiment of Fig. 2 is simulated, and the significant parameter of logistics is as shown in table 1 in the system.Adopt following condition: in the Chemicals synthon system, the methyl alcohol synthesis pressure is 10MPa, 270 ℃ of methyl alcohol synthesis temperatures, the synthesizer pressure-losses 5%, the interchanger pressure-losses 3%, the reformer cold-side fluid pressure-losses 10%, the hot side liquid pressure-losses 1% of reformer, the synthesic gas compressor isentropic efficiency is 75%; In the power generation sub-system, the compressor pressure ratio of internal combustion turbine is 15, the gas turbine inlet temperature is 1308 ℃, and the interchanger pressure-losses 3%, pneumatic plant isentropic efficiency are 88%, the gas turbine isentropic efficiency is 89%, the isentropic efficiency of pump is 80%, and the waste heat boiler pinch-point temperature difference is 10 ℃, and the loss of exhaust-heat boiler flue gas wall pressure is 3%, the loss of waste heat boiler steam/water wall pressure is 10%, condenser condensing pressure 0.0085MPa
Table 1 multifunction system key point thermal parameter
Table 2 multifunction system and a minute product systematic comparison (MW)
In order to assess new system, supposed multifunction system and divided the product system consumption coal and the Sweet natural gas of same amount.Because methyl alcohol output can enter methyl alcohol synthesizer circulation gas flow by change and control, we guarantee the methyl alcohol that multifunction system output and minute product system equate.Therefore, the electric power of many outputs represents the advantage of multifunction system.
Table 2 is total efficiencys of minute product system energy balance of multifunction system.Total efficiency is to calculate the energy of the product (methyl alcohol and electricity) that produces and the ratio of fossil energy by Lower heat value.In same coal and Sweet natural gas input and same methyl alcohol output situation, new system can be than the electricity of original minute product system multiple 21%.The thermo-efficiency of new system can reach 57.1%, and score product system is high 5 percentage points.
In multifunction system, the transformation efficiency of carbon is about 50%, is gasified totally much lower (about 96%) than IGCC, and when the transformation efficiency of carbon was reduced to 60% by 90%, the volume of reactor can reduce 66%.908.8 ℃ of ratios of coal partial gasification temperature be gasified totally (1350 ℃) much lower, gasification and residual neat recovering system can use the material of relative low price, therefore, partial gasification can significantly reduce coal gasification apparatus and invest.In multifunction system, the Sweet natural gas appropriateness is converted into synthetic gas, methane conversion is reduced to 66.5% by traditional 92.4%, significantly reduced reaction volume, temperature of reaction is reduced to 800 ℃ by 950 ℃, can extension reactor and life-span, therefore, part is reformed good potentiality aspect reduce cost.In multifunction system, circulation ratio is reduced to 1.5 by 4.8, significantly reduced the compression wasted work, in the methyl alcohol synthesizer among the CO transformation efficiency be reduced to 46.5% by 71.0% of minute product system, transformation efficiency reduces so that reaction rate accelerates, therefore, and in the situation of identical methanol output, methyl alcohol partial synthesis device size reduction, corresponding facility investment significantly reduces.
The multifunctional energy resource system of use Sweet natural gas proposed by the invention and coal production chemical product and electricity is improving Sweet natural gas and the coal utilization rate used, and reduces system scale and facility investment aspect and demonstrates extraordinary superiority.Utilization provides a new feasible method to the fossil oil efficient economy in the present invention.
The above embodiments are the further elaborations to goal of the invention of the present invention, technical scheme and income effect.The flow process of such scheme and parameter only are specific embodiments of the invention, and unrestricted the present invention.All within principle of the present invention, any modification of making, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (15)
1. a multifunctional energy resource system that transforms based on fossil oil chemical energy appropriateness is characterized in that, this system comprises the synthetic gas preparation and synthesizes and refining subsystem and power generation sub-system with waste heat recovery subsystem, Chemicals, wherein:
Synthetic gas preparation and waste heat recovery subsystem, be used for coal and Sweet natural gas are changed into high-temperature synthesis gas by partial gasification and reformer unit appropriateness respectively, with flowing to the synthetic and refining subsystem of Chemicals after this high-temperature synthesis gas cooling, simultaneously the high-temperature steam that produces is flowed to power generation sub-system;
Synthetic and the refining subsystem of Chemicals, the high-temperature synthesis gas that is used for receiving is pressed and delivered to the Chemicals synthesis reactor, synthetic Chemicals, and then the Chemicals that obtain making with extra care through refined unit, the unconverted gas that discharges in the Chemicals building-up process flows to power generation sub-system and is used after the recovery;
Power generation sub-system, be used for changing into electric energy output with the unconverted synthetic gas of refining subsystem and from the high-temperature steam of waste heat recovery subsystem with Chemicals are synthetic, provide process steam for synthetic gas preparation and Chemicals are synthetic with refining subsystem simultaneously.
2. according to claim 1 based on the appropriate multifunctional energy resource system that transforms of fossil oil chemical energy, it is characterized in that, described synthetic gas preparation comprises coal/pure oxygen partial gasification stove at least with the waste heat recovery subsystem, coal-char combustion reforming reactor and waste-heat recovery device, coal, the part gasification reaction occurs and carries out coal gasification course generation synthetic gas in pure oxygen and water vapor in this coal/pure oxygen partial gasification stove, non-reacted parts changes into semicoke, this semicoke generation heat that burns outside the reaction tubes of coal-char combustion reforming reactor inside is for Sweet natural gas and the catalyst surface generation reforming reaction of water vapor in reaction tubes; The synthetic gas of the synthetic gas that coal gasification course generates and reforming reaction preparation, the waste heat of the two reclaims through waste-heat recovery device, produces simultaneously superheated vapour.
3. according to claim 2 based on the appropriate multifunctional energy resource system that transforms of fossil oil chemical energy, it is characterized in that, this coal gasification course is that appropriateness transforms, the component that chemically reactive wherein is higher is converted into synthetic gas, coal is adjusted by changing pure oxygen input, steam input and reaction times at the efficiency of carbon conversion of gasification, and setting range is 20%～70%.
4. according to claim 3 based on the appropriate multifunctional energy resource system that transforms of fossil oil chemical energy, it is characterized in that the rich carbon monoxide of this synthetic gas, and reformation synthetic gas hydrogen rich gas, two kinds of synthetic gas mix in certain proportion, and it is synthetic to be conducive to follow-up Chemicals.
5. according to claim 2 based on the appropriate multifunctional energy resource system that transforms of fossil oil chemical energy, it is characterized in that, the temperature of this reforming reaction is controlled in more than or equal to 550 ℃, the reforming reaction steam/hydrocarbons ratio is 2 to 5, the reforming reaction pressure-controlling is 0.2 to 2MPa, and the transformation efficiency of methane can be adjusted by changing temperature of reaction in the reforming reaction.
6. the multifunctional energy resource system that transforms based on fossil oil chemical energy appropriateness according to claim 2 is characterized in that the parameter of the superheated vapour that this waste-heat recovery device is produced is identical with the parameter of steam turbine entrance in the power generation sub-system.
7. according to claim 2 based on the appropriate multifunctional energy resource system that transforms of fossil oil chemical energy, it is characterized in that, the synthetic gas that coal gasification course generates mixes with the synthetic gas of reforming reaction preparation, utilize the rich carbon characteristic of synthetic gas and the rich hydrogen characteristic of synthetic gas, adjust flexibly the ratio of carbon-hydrogen of gas mixture.
8. according to claim 2 based on the appropriate multifunctional energy resource system that transforms of fossil oil chemical energy, it is characterized in that, this synthetic gas preparation further comprises ash disposal and FGD desulfurizer with the waste heat recovery subsystem, the semicoke fume afterheat that produces that burns outside the reaction tubes of this coal-char combustion reforming reactor inside reclaims by waste-heat recovery device, produce steam and preheated burning air, low-temperature flue gas removes sulphur through desulfurizer first, and then entering atmosphere, the superheated vapour of waste-heat recovery device production is sent to steam turbine power generation.
9. according to claim 2 based on the appropriate multifunctional energy resource system that transforms of fossil oil chemical energy, it is characterized in that, described Chemicals are synthesized and are comprised synthesizer with refining subsystem, separate and refined unit, synthesizer is converted into the alligatoring chemical product with the gas mixture of coal gas and synthetic gas through the Chemicals building-up process, and separation and refined unit are used for improving Chemicals purity and quality.
10. according to claim 9 based on the appropriate multifunctional energy resource system that transforms of fossil oil chemical energy, it is characterized in that, this Chemicals building-up process is converted into Chemicals according to the chemically reactive of gas composition with the active high component of synthetic gas, and the component that activity is low is exported to power generation sub-system and acted as a fuel.
11. the multifunctional energy resource system that transforms based on fossil oil chemical energy appropriateness according to claim 9 is characterized in that the part unreacting gas is sneaked into fresh synthesis gas after pressurizeing in this Chemicals building-up process, circulation ratio is controlled at below 3.
12. the multifunctional energy resource system that transforms based on fossil oil chemical energy appropriateness according to claim 1 is characterized in that, described Chemicals are synthetic to comprise methyl alcohol synthesizer, separator and rectification cell with refining subsystem; The methyl alcohol synthesizer changes into methyl alcohol with synthetic gas, and separator separates thick methyl alcohol with synthetic gas, and the refining crude methanol that rectification cell then obtains separator becomes pure methyl alcohol.
13. the multifunctional energy resource system that transforms based on fossil oil chemical energy appropriateness according to claim 12, it is characterized in that, described Chemicals are synthetic to be converted into methyl alcohol with refining subsystem with active ingredient appropriateness in the synthetic gas, separator is circulated back to the methyl alcohol synthesizer with the part unreacted synthesis gas, and all the other unreacted synthesis gas are sent to the power generation sub-system generating that acts as a fuel.
14. the multifunctional energy resource system that transforms based on fossil oil chemical energy appropriateness according to claim 1 is characterized in that described power generation sub-system comprises a power generation assembly at least.
15. the multifunctional energy resource system that transforms based on fossil oil chemical energy appropriateness according to claim 14, it is characterized in that, described power generation assembly is the power generation assembly of Gas-steam Combined Cycle, comprise internal combustion turbine, waste heat boiler and steam turbine, be used for the chemical energy of fuel and the heat energy of steam are converted into electric energy.
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| AU2013216767B2 (en) * | 2012-02-11 | 2017-05-18 | 8 Rivers Capital, Llc | Partial oxidation reaction with closed cycle quench |
| CN103265976B (en) * | 2013-04-22 | 2014-12-17 | 昊华工程有限公司 | Method and device for ordinary-pressure oxygen-enriched continuous gasification-gas-steam combined cycle power-generation heat supply |
| CN103980943B (en) * | 2013-12-09 | 2016-08-17 | 陈涛 | Power plant's coal base boiler carbon molecule gasification combustion method |
| US20160298040A1 (en) * | 2013-12-09 | 2016-10-13 | Tao Chen | Power generating method of carbon-molecule gasification combustion boiler |
| CN108661730A (en) * | 2017-03-30 | 2018-10-16 | 中石化广州工程有限公司 | A kind of method and device using reformer cogeneration |
| CN110243992B (en) * | 2018-03-09 | 2022-10-11 | 国家能源投资集团有限责任公司 | Preparation method of catalyst evaluation feed gas and catalyst industrial evaluation test system |
| CN110700945B (en) * | 2019-11-28 | 2023-09-26 | 中国华能集团有限公司 | Gas turbine fuel gas inlet adjusting system and method with parameter combustion gas injection and heat value adjusting functions |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1923974A (en) * | 2005-09-01 | 2007-03-07 | 中国科学院工程热物理研究所 | Method of producing chemical product by double fuel reforming chemical system |
| CN101024783A (en) * | 2006-02-24 | 2007-08-29 | 中国科学院工程热物理研究所 | Chemical-power multi-combined production system and method |
| CN101285004A (en) * | 2007-04-11 | 2008-10-15 | 中国科学院工程热物理研究所 | Multifunctional energy resource system |
-
2009
- 2009-08-12 CN CN200910090472XA patent/CN101993730B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1923974A (en) * | 2005-09-01 | 2007-03-07 | 中国科学院工程热物理研究所 | Method of producing chemical product by double fuel reforming chemical system |
| CN101024783A (en) * | 2006-02-24 | 2007-08-29 | 中国科学院工程热物理研究所 | Chemical-power multi-combined production system and method |
| CN101285004A (en) * | 2007-04-11 | 2008-10-15 | 中国科学院工程热物理研究所 | Multifunctional energy resource system |
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