CN108102722B - A kind of polymorphic type preparation of fuel process based on solar energy gasification reaction - Google Patents
A kind of polymorphic type preparation of fuel process based on solar energy gasification reaction Download PDFInfo
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- CN108102722B CN108102722B CN201711317346.4A CN201711317346A CN108102722B CN 108102722 B CN108102722 B CN 108102722B CN 201711317346 A CN201711317346 A CN 201711317346A CN 108102722 B CN108102722 B CN 108102722B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/723—Controlling or regulating the gasification process
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0973—Water
- C10J2300/0976—Water as steam
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/12—Heating the gasifier
- C10J2300/1284—Heating the gasifier by renewable energy, e.g. solar energy, photovoltaic cells, wind
- C10J2300/1292—Heating the gasifier by renewable energy, e.g. solar energy, photovoltaic cells, wind mSolar energy
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
- C10J2300/1861—Heat exchange between at least two process streams
- C10J2300/1884—Heat exchange between at least two process streams with one stream being synthesis gas
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
- C10J2300/1861—Heat exchange between at least two process streams
- C10J2300/1892—Heat exchange between at least two process streams with one stream being water/steam
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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
- Y02P20/133—Renewable energy sources, e.g. sunlight
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Abstract
The invention belongs to Solar use correlative technology fields, and disclose a kind of polymorphic type preparation of fuel process based on solar energy gasification reaction, include: that carbonaceous material is placed in solar energy gasification reaction system, gasification reaction is executed as gasifying agent using vapor；Heat exchange is executed to gasification product, reduces separation and removal CO2Deng operation；To gasification product according to its component of classification real-time detection and key parameter, while Real-time Feedback is adjusted to obtain required target product.Through the invention, a plurality of types of gaseous products can not only be obtained, and the component and feature of these gaseous products can be executed in a manner of high-responsivity and convenient for manipulation and be adjusted flexibly, be provided simultaneously with the features such as high quality, high efficiency, adaptability are good, and efficiently solve solar energy storage and transport, a variety of carbonaceous materials efficient and high value added utilization the problems such as.
Description
Technical field
The invention belongs to Solar use correlative technology fields, are based on solar energy gasification reaction more particularly, to one kind
Polymorphic type preparation of fuel process.
Background technique
Under the background of global warming and energy crisis, solar energy because its is renewable, widely distributed, reserves are huge,
It is especially taken seriously using simple.Since solar energy belongs to radiation energy, have the characteristics that instantaneity, not can guarantee solar energy and hold
It is continuous steadily to export.The shortcomings that instantaneity in order to overcome solar energy, solar utilization technique generally requires to take with energy storage device
With use.Current solar energy storage technology, which is concentrated mainly on, meets electricity needs, and efficiency and reserves are limited by battery technology
Development, be difficult to make a breakthrough in a short time, it is therefore desirable to find new and effective solar energy storage technology.
So-called solar energy gasification technology is the incident intensity that the sun is improved by condenser, it is possible to provide about 2000 DEG C of height
Temperature, driving carbonaceous material occur high-temperature gasification reaction, generate the high-grade synthesis gas that calorific value is high, tar content is low, accordingly make
Solar energy is stored in the form of chemical energy.Some solutions have been proposed in the prior art, it is desired to be able to be use up
Possible high solar conversion efficiency.For example, CN201510303447.0 proposes a kind of solar energy high temperature heat chemistry gasified reverse
Device is answered, wherein can more efficiently utilize Driven by Solar Energy coal and biomass etc. by the transformation constructed to inside reactor
Solid hydrocarbon fuel carries out gasification reaction, realizes conversion of the solar energy to high-quality synthesis gas；For another example, CN201610227261.6
A kind of middle low-temperature solar energy-gasification of biomass polygenerations systeme is proposed, wherein by carrying out ladder to system difference quality energy
Grade utilizes, and achievees the purpose that offer energy utilization efficiency is high.
However, further investigations have shown that, there are still defect below or deficiencies for the prior art: firstly, these solar energy
Gasification technology can only prepare the synthesis gas product of single features, but ignore synthesis gas and have transport fuel, extract hydrogen, preparation
The multiple uses such as heavy chemicals accordingly lead to the utilization rate of carbonaceous material and solar energy in terms of the product type angle finally obtained
Deficiency especially can not accurately, easily adjust target product and its feature according to operating condition needs, be unable to satisfy social production
In the energy that becomes more diverse and non-energy demand；Secondly, above scheme is often more concerned about the calorific value of synthesis gas, but to synthesis gas
High value added utilization mode study deficiency, thus significantly limit solar energy and carbonaceous material high-grade and utilize.Correspondingly,
This field needs to make further improvement, to conform better in modernization large-scale production process to solar energy gasification applied field
The higher demand closed.
Summary of the invention
For the above shortcoming and Improvement requirement of the prior art, the present invention provides one kind to be based on solar energy gasified reverse
The polymorphic type preparation of fuel process answered, wherein by entire reaction process especially real-time measure and control step etc.
Targeted design and adjustment are carried out, a plurality of types of gaseous products, and the group of these gaseous products can not only be accordingly obtained
Divide and feature can be executed in a manner of high-responsivity and convenient for manipulation and is adjusted flexibly, is provided simultaneously with high quality, high efficiency, adaptation
The features such as property is good, and storage and transport, the efficient and high value added utilization of a variety of carbonaceous materials etc. for efficiently solving solar energy
Problem.
To achieve the above object, it is proposed, according to the invention, provide a kind of polymorphic type fuel system based on solar energy gasification reaction
Standby process, which is characterized in that this method includes the following steps:
(a) carbonaceous material is placed in solar energy gasification reaction system, adjusts solar radiation intensity and reaches scheduled gas
Change reaction temperature, while suitable vapor is passed through using steam generator, under the conditions of certain pressure intensity gas occurs for carbonaceous material
Change reaction, and obtains the gaseous product for being contaminated with vapor；
(b) steam generator continues to be passed through vapor, heat exchange is carried out in heat exchanger with gasification product, and make
The temperature of gaseous product is minimized, until the gaseous product of the isolated drying of Water vapor condensation；Then, make CO2From gas
It is separated in product, correspondinglys increase CH in gaseous product4、H2With the content of CO；
(c) target product in gaseous product is set as high heating value gaseous fuel, hydrogen-rich gas and high-grade synthesis gas
Three classes, wherein high heating value gaseous fuel is that Lower heat value is higher than 14.0MJ/Nm3Fuel gas, hydrogen-rich gas is hydrogen ratio
Gas more than 85%, high-grade synthesis gas are H2/ CO is higher than 2 gas；According to the above classification to gaseous product real-time detection
Its gas component and parameter, and the signal that will test feeds back to control system；
(d) control system is right according to the component and parameter differences between real gas product and object gas product
It include that the conditions such as gasification reaction temperature, the mass ratio of vapor and carbonaceous material and gasification reaction pressure carry out in step (a)
Real-time closed-loop is adjusted, thus final to obtain required target product.
As it is further preferred that the carbonaceous material includes one of following substance or combination in step (a):
Coal, biomass, petroleum coke, domestic waste etc..
As it is further preferred that in step (a), the vapor be passed through rate be preferably set to 0.5L/min~
5L/min, further preferably 1.5L/min~3L/min.
As it is further preferred that in step (b), it is preferred to use spiral-plate heat exchanger produces to execute vapor and gasification
Heat exchange between object, and the temperature of gaseous product is preferably reduced using water-cooled cooler.
As it is further preferred that in step (b), it is preferred to use using potassium modification hydrotalcite as the pressure-variable adsorption of adsorbent
System separates CO2, and removal rate is set as 90% or more.
As it is further preferred that the control system is preferably provided with three kinds of operating modes namely value heat fuel work
Mode, hydrogen-rich gas operating mode and high-grade synthesis gas operating mode, and each operating mode is respectively preset with different temperature
The parameter values such as degree, pressure and vapor flow, and by the way that these parameter values are sent to corresponding temperature control modules, pressure control
Molding block and vapor flow control module selectively execute the real-time closed-loop adjustment process；In addition, the temperature control
Module preferably uses PID control, and the pressure control module, vapor flow control module preferably use PI to control.
As it is further preferred that it is preferably turned by radiant-energy thermometer, modulus for the temperature control modules
The closed loop control module of parallel operation, temperature controller and servo motor composition；The temperature signal that wherein radiant-energy thermometer measures is by counting
Mode converter is converted to digital signal input temp controller, and controller controls servo motor tune according to the target temperature set
Whole grid aperture guarantees that actual temperature and set temperature difference are within the scope of ± 5 DEG C in reactor.
As it is further preferred that it is by pressure sensor, analog-digital converter, pressure for pressure control module
Force controller and solenoid valve block at closed loop control module；The pressure signal that wherein pressure sensor measures is turned by analog-digital converter
It is changed to digital signal input pressure controller, pressure controller guarantees anti-according to the aperture of the pressure duty control solenoid valve of setting
Answer in device actual pressure and set pressure differential value within the scope of ± 5kPa.
As it is further preferred that it is by flowmeter, analog-to-digital conversion for the vapor flow control module
Device, flow controller and solenoid valve block at closed loop control module；The flow signal that wherein flow measuring unit measures is by analog-digital converter
Digital signal input flow rate controller is converted to, flow controller controls electromagnetism valve opening according to the range of flow of setting, guarantees
The practical vapor flow and setting flow difference of input reactor are within the scope of ± 0.1L/min.
As it is further preferred that being inputted under the value heat fuel operating mode by on-line gas analysis instrument
Signal is set to gas heating value；Under the hydrogen-rich gas operating mode, the signal inputted by on-line gas analysis instrument is set
It is set to hydrogen ratio；And under the high-grade synthesis gas operating mode, it is set by the signal that on-line gas analysis instrument inputs
For the ratio of hydrogen and carbon monoxide；Upon power-up of the system with the operation of minimum parameter, if the measured value of on-line gas analysis does not reach
To desired value, then operating parameter is gradually improved automatically within the set range, until obtaining desired gaseous product.
As it is further preferred that the temperature control system preferably uses PID control, wherein P, I, D are further preferred
Respectively 40,5 and 0.7；The pressure control module preferably uses PI to control, and wherein P, I are further preferably respectively 50 and
1.7；The vapor flow control module preferably uses PI to control, and wherein P, I are further preferably respectively 70 and 0.5.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, by entire technique
The committed step of route is carried out for Journal of Sex Research and design, not only can adjust in real time acquisition multiple types according to operating condition actual needs
The gasification product of type, and vapor can significantly reduce the impurity in the gasification product finally obtained as the mode of gasifying agent；
In addition, the process can be realized the efficient portrait storage to solar energy, it is provided simultaneously with raw material wide adaptation range, gasification residual
The features such as object is only a small amount of ash content and product multiplicity of carbonaceous material itself, flexible in application, is therefore particularly suitable for industrializing
The solar energy vaporising fuel application and preparation occasion of large-scale production.
Detailed description of the invention
Fig. 1 is the process flow chart according to polymorphic type fuel process constructed by the preferred embodiment for the present invention；
Fig. 2 is the exemplary temperature-parametric plot for being shown as hydrogen-rich gas obtained by the present invention；
Fig. 3 is the exemplary temperature-parametric plot for being shown as high-grade synthesis gas obtained by the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
Not constituting a conflict with each other can be combined with each other.
Fig. 1 is the process flow chart according to polymorphic type fuel process constructed by the present invention.As shown in Figure 1, the work
Process mainly includes solar energy gasification reaction, heat exchange, reduces separation, removal CO2Deng operation；Additionally specifically for multiclass
The preparation of type fuel requires to devise the behaviour such as corresponding target product classification of type, real-time detection and real-time closed-loop feedback control
Make.Specific explanations explanation will be carried out one by one to these steps below.
Firstly, by all kinds of widely available carbonaceous materials merging solar energy gasification reaction systems, carbonaceous material include but
It is not limited to one of coal, biomass, petroleum coke, domestic waste or a variety of, granular size is unlimited；Then it adjusts too
Positive energy radiation intensity reaches scheduled gasification reaction temperature (for example 1000K~1150K), while it is suitable to use steam generator to be passed through
As gasifying agent, the gasification reaction of 1min~5min for example occurs the vapor of amount under the conditions of certain pressure intensity for carbonaceous material, and
Obtain the gaseous product for being contaminated with vapor.In this step, as one of key reaction condition, vapor to be passed through rate excellent
Choosing is set as 0.5L/min~5L/min, further preferably 1.5L/min~3L/min；By this method, more actual test
Show that the few gasification product of impurity can be obtained, and facilitates carry out subsequent processing.
Then, steam generator continues to be passed through vapor, heat exchange is carried out in heat exchanger with gasification product, and make to bring about the desired sensation
The temperature of body product is minimized, until the gaseous product of the isolated drying of Water vapor condensation；Then, make CO2It is produced from gas
It is separated in object, correspondinglys increase CH in gaseous product4、H2With the content of CO.
More specifically, a preferred embodiment according to the invention, can be used spiral-plate heat exchanger to execute vapor
Heat exchange between gasification product, and water-cooled cooler can be used to reduce the temperature of gaseous product.In addition, in view of separation
CO2Effect directly influences the on-line checking precision in later period, and by more contrast test, one according to the invention preferred real
Mode is applied, uses and hydrotalcite is modified as the pressure swing adsorption system of adsorbent separation CO using potassium2, and removal rate be set as 90% with
On.
Then, as one of key improvements of the invention, combine closely more than reaction system and actual condition demand, this
The target product in gaseous product is set as high heating value gaseous fuel, hydrogen-rich gas and high-grade synthesis gas three classes in invention,
Wherein high heating value gaseous fuel is that Lower heat value is higher than 14.0MJ/Nm3Fuel gas, hydrogen-rich gas is that hydrogen ratio is more than
85% gas, high-grade synthesis gas are H2/ CO is higher than 2 gas；And according to the above classification to gaseous product real-time detection
Its gas component and parameter, the signal that then will test feed back to control system.
Finally, the control system is according to the component and parameter differences between real gas product and object gas product,
To including the conditions such as gasification reaction temperature, the mass ratio of vapor and carbonaceous material and gasification reaction pressure in above step
Real-time closed-loop adjusting is carried out, it is thus final to obtain required target product.
More specifically, specially being carried out to closed loop adjustment module and its control algolithm as another key improvements of the invention
Curve guide impeller.Wherein, whole system is with the starting of minimum operation parameter, according to the measured value of on-line gas analysis instrument, gradually certainly
It is dynamic to improve operating parameter.It is temperature, vapor flow, pressure that parameter, which adjusts priority,.Running temperature reaches highest operation temperature
When spending, stops raising temperature and switch to improve vapor flow.When the adjustment of vapor flow reaches capacity, then operating pressure is mentioned
High 0.5bar is continued to run.If still cannot get target product, control system maintains pressure and vapor flow constant, will be warm
Degree reduces by 50 DEG C of operations, is simultaneously emitted by " run-time error " and alerts and attempt with parameter current restarting systems.
Technical process and product of the invention are more clearly illustrated below with reference to two specific embodiments.
Embodiment 1
S1: lignite is added in solar energy reactor；
S2: adjusting focused solar energy radiation intensity and reach reaction temperature (950~1050K), and pressure is stablized in 10 ± 1bar,
Vapor is passed through in solar energy reactor with 0.5~1.5L/min rate, gasification reaction occurs for carbonaceous material, and the reaction time is
1~5min；
S3: the vapor and gaseous product generated in steam generator carries out heat exchange in heat exchanger, further increases
Steam temperature reduces gaseous product temperature simultaneously, is convenient for subsequent processing；
S4: cooling gas product obtains dry gaseous product so that Water vapor condensation is separated with remaining ingredient；
S5: CO is made by pressure-variable adsorption2It is separated from gaseous product, improves CH in gaseous product4、H2With the content of CO；
S6:: real-time gas component is detected by online flue gas analyzer, the signal monitored is returned into decentralised control system
It unites (DCS)；
S7: for control system according to the component difference of target product and real gas product, control reaction temperature, vapor are logical
Enter rate and pressure and adjust control object gas production concentration and yield in real time within the set range, obtaining calorific value is
14.06~17.52MJ/Nm3Gaseous product, i.e., desired high heating value gaseous fuel.
Embodiment 2
S1: lignite is added in solar energy reactor；
S2: adjusting focused solar energy radiation intensity and reach reaction temperature (900~1000K), and pressure stablizes 1 ±
Vapor is passed through in solar energy reactor by 0.1bar with 4~5L/min rate, and gasification reaction occurs for carbonaceous material, when reaction
Between be 1~5min；
S3: the vapor and gaseous product generated in steam generator carries out heat exchange in heat exchanger, further increases
Steam temperature reduces gaseous product temperature simultaneously, is convenient for subsequent processing；
S4: cooling gas product obtains dry gaseous product so that Water vapor condensation is separated with remaining ingredient；
S5: CO is made by pressure-variable adsorption2It is separated from gaseous product, improves CH in gaseous product4、H2With the content of CO；
S6:: real-time gas component is detected by online flue gas analyzer, the signal monitored is returned into decentralised control system
It unites (DCS)；
S7: for control system according to the component difference of target product and real gas product, control reaction temperature, vapor are logical
Enter rate and pressure and adjust control object gas production concentration and yield in real time within the set range, obtains H as shown in Figure 22
The gaseous product that content accurately controls as 87.30~90.77%, i.e. hydrogen-rich gas.
Embodiment 3
S1: lignite is added in solar energy reactor；
S2: adjusting focused solar energy radiation intensity and reach reaction temperature (1000~1150K), and pressure stablizes 1 ±
Vapor is passed through in solar energy reactor by 0.1bar with 2~3.5L/min rate, and gasification reaction, reaction occur for carbonaceous material
Time is 1~5min；
S3: the vapor and gaseous product generated in steam generator carries out heat exchange in heat exchanger, further increases
Steam temperature reduces gaseous product temperature simultaneously, is convenient for subsequent processing；
S4: cooling gas product obtains dry gaseous product so that Water vapor condensation is separated with remaining ingredient；
S5: CO is made by pressure-variable adsorption2It is separated from gaseous product, improves CH in gaseous product4、H2With the content of CO；
S6:: real-time gas component is detected by online flue gas analyzer, the signal monitored is returned into decentralised control system
It unites (DCS)；
S7: for control system according to the component difference of target product and real gas product, control reaction temperature, vapor are logical
Enter rate and pressure and adjust control object gas production concentration and yield in real time within the set range, obtains H2/ CO value is
2.08~4.33 gaseous product, i.e. high-grade synthesis gas.
To sum up, the present invention is compared with existing scheme, can in order to manipulate, the mode of high quality and high efficiency use solar energy
Heat is provided for gasification reaction, realizes the efficient chemical storage of solar energy；Wherein made by using carbonaceous material gasification product
For the storage medium of solar energy, mud coal, lignite, petroleum coke, rice husk, cotton stalk, corn stover, urban life rubbish can be used
A variety of carbonaceous materials such as rubbish, raw material wide adaptation range, and gasification residue are only ash content contained by carbonaceous material itself, are realized
The clean utilizations of a variety of carbon-containing energies；In addition, impurity is few in gasification product, just by using vapor as gasifying agent
In carrying out subsequent processing to it.Generally, the present invention has product multiplicity compared with current energy storage technology, flexible in application
The advantages of, it can cross and meet diversified demand.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (10)
1. a kind of polymorphic type preparation of fuel process based on solar energy gasification reaction, which is characterized in that the polymorphic type fuel
Process of preparing includes the following steps:
(a) carbonaceous material is placed in solar energy gasification reaction system, adjusts solar radiation intensity and reaches scheduled gasified reverse
Temperature is answered, while suitable vapor is passed through using steam generator, under the conditions of certain pressure intensity gasified reverse occurs for carbonaceous material
It answers, and obtains the gaseous product for being contaminated with vapor；
(b) steam generator continues to be passed through vapor, heat exchange is carried out in heat exchanger with gaseous product, and make gas
The temperature of product is minimized, until the gaseous product of the isolated drying of Water vapor condensation；Then, make CO2From gaseous product
Middle separation correspondinglys increase CH in gaseous product4、H2With the content of CO；
(c) target product in gaseous product is set as high heating value gaseous fuel, hydrogen-rich gas and high-grade synthesis gas three classes,
Wherein high heating value gaseous fuel is that Lower heat value is higher than 14.0MJ/Nm3Fuel gas, hydrogen-rich gas is that hydrogen ratio is more than
85% gas, high-grade synthesis gas are H2/ CO is higher than 2 gas；According to the above classification to its gas of gaseous product real-time detection
Body component and parameter, and the signal that will test feeds back to control system；
(d) control system is according to the parameter differences between real gas product and object gas product, to packet in step (a)
The mass ratio and these conditions of gasification reaction pressure for including gasification reaction temperature, vapor and carbonaceous material carry out real-time closed-loop
It adjusts, it is thus final to obtain required target product.
2. polymorphic type preparation of fuel process as described in claim 1, which is characterized in that described carbon containing in step (a)
Material includes one of following substance or combination: coal, biomass, petroleum coke, domestic waste.
3. polymorphic type preparation of fuel process as claimed in claim 2, which is characterized in that in step (a), the water steams
The rate that is passed through of gas is set as 0.5L/min~5L/min.
4. polymorphic type preparation of fuel process as claimed in claim 1 or 2, which is characterized in that in step (b), use
Spiral-plate heat exchanger executes the heat exchange between vapor and gaseous product, and gas production is reduced using water-cooled cooler
The temperature of object.
5. polymorphic type preparation of fuel process as claimed in claim 4, which is characterized in that in step (b), use with potassium
It modifies the pressure swing adsorption system that hydrotalcite is adsorbent and separates CO2, and removal rate is set as 90% or more.
6. polymorphic type preparation of fuel process as claimed in claim 1 or 2, which is characterized in that described in step (d)
Control system has three kinds of operating modes namely value heat fuel operating mode, hydrogen-rich gas operating mode and high-grade synthesis
Gas operating mode, and each operating mode is respectively preset with these parameter values of different temperature, pressure and vapor flow, and leads to
It crosses and these parameter values is sent to corresponding temperature control modules, pressure control module and vapor flow control module to select
Property execute the real-time closed-loop adjustment process；In addition, the temperature control modules use PID control, the pressure control module,
Vapor flow control module is controlled using PI.
7. polymorphic type preparation of fuel process as claimed in claim 6, which is characterized in that for the temperature control modules
For, closed loop control module that it is made of radiant-energy thermometer, the first analog-digital converter, temperature controller and servo motor；
Wherein, the temperature signal that the radiant-energy thermometer measures is converted to digital signal by first analog-digital converter and inputs the temperature
Controller is spent, which controls the servo motor according to the target temperature set and adjust grid aperture, guarantees anti-
Answer in device actual temperature and set temperature difference within the scope of ± 5 DEG C.
8. polymorphic type preparation of fuel process as claimed in claim 7, which is characterized in that for the pressure control module
For, it be by pressure sensor, the second analog-digital converter, pressure controller and the first solenoid valve block at closed-loop control mould
Block；Wherein, the pressure signal that the pressure sensor measures is converted to digital signal input institute by second analog-digital converter
Pressure controller is stated, which controls the aperture of first solenoid valve according to the pressure value of setting, guarantees reactor
Interior actual pressure and set pressure differential value are within the scope of ± 5kPa.
9. polymorphic type preparation of fuel process as claimed in claim 8, which is characterized in that for the vapor flow control
For molding block, closed-loop control mould that it is made of flowmeter, third analog-digital converter, flow controller and second solenoid valve
Block；Wherein, the flow signal that the flow measurement obtains is converted to digital signal by the third analog-digital converter and inputs the stream
Amount controller, the flow controller control the second solenoid valve aperture according to the range of flow of setting, guarantee input reactor
Practical vapor flow and setting flow difference within the scope of ± 0.1L/min.
10. polymorphic type preparation of fuel process as claimed in claim 9, which is characterized in that in the value heat fuel
Under operating mode, gas heating value is set to by the signal that on-line gas analysis instrument inputs；In the hydrogen-rich gas operating mode
Under, hydrogen ratio is set to by the signal that on-line gas analysis instrument inputs；And under the high-grade synthesis gas operating mode,
The ratio of hydrogen and carbon monoxide is set to by the signal that on-line gas analysis instrument inputs；Upon power-up of the system with minimum parameter
Operation gradually improves operating parameter, directly if the measured value of on-line gas analysis is not up to desired value automatically within the set range
To obtaining desired gaseous product.
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