CN103899371B - Utilize living beings and solar energy to produce the polygenerations systeme of methyl alcohol and generating - Google Patents
Utilize living beings and solar energy to produce the polygenerations systeme of methyl alcohol and generating Download PDFInfo
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- CN103899371B CN103899371B CN201410097963.8A CN201410097963A CN103899371B CN 103899371 B CN103899371 B CN 103899371B CN 201410097963 A CN201410097963 A CN 201410097963A CN 103899371 B CN103899371 B CN 103899371B
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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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
- Y02E50/10—Biofuels, e.g. bio-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
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- Y02P20/50—Improvements relating to the production of bulk chemicals
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Abstract
The invention discloses a kind of living beings and solar energy of utilizing to produce the polygenerations systeme of methyl alcohol and generating, this polygenerations systeme comprises solar energy heating reaction subtense angle, biogas sub-systems, methanol-fueled CLC subtense angle and power generation sub-system, capital equipment comprises plate type solar exsiccator, trough type solar heat-collector, steam generator, tower type solar reflector field, tower high temperature gasification reactor, gas desuperheater, condensation of gas purifier, compressor bank, methyl alcohol synthetic reactor, heat exchanger, gas-liquid desuperheater, flash drum, separator, mixer, rectifying column, methanol tank, firing chamber, compressor, combustion gas turbine, exhaust heat boiler, steam turbine, condenser, feed water pump and generator.Utilize the present invention, achieve solar energy to chemical transformation of energy, and the energy storage difficulty solving current solar energy is large and renewable energy sources carries the problems such as poor stability, also improves the effective rate of utilization of living beings simultaneously.
Description
Technical field
The present invention relates to multiple renewable energy sources complementation and utilize technical field, especially a kind of living beings and solar energy of utilizing is to produce the polygenerations systeme of methyl alcohol and generating.
Background technique
Under the background of rapid economic development, the demand of the mankind to the energy is increasing, and the fossil fuel such as coal, oil and natural gas consumes in a large number, the sharply reduction being not only energy resources reserves thereupon brought, also serious environmental pollution will be produced, especially a large amount of CO
2isothermal chamber gas purging will have influence on the ecological balance in the whole world.
The total output of primary energy of China rises to 33.19 hundred million tons of standard coals of 2012 from 13.51 hundred million tons of standard coals of 2000, amplification reaches 145.67%, year primary energy consumption amount is also risen to 36.17 hundred million tons of standard coals of 2012 by 14.55 hundred million tons of standard coals of 2000, total amount has turned over one times, adds 148.59%.Especially it is noted that the dependence on foreign countries for oil to China in 2012 reaches 56.4%.In the face of growing demand for energy, while raising energy utilization rate, also should make full use of renewable energy sources and be substituted.
On the other hand, the solar energy resources of China is very abundant, year solar radiation value be about 1050 ~ 2450kWh (m
2a), 1050kWh (m is greater than
2a) area accounts for more than 96% of area.The annual mean day solar radiation quantity of China is 180W/m
2, average day solar radiation quantity distribution trend to show as Xi Gaodong low.In west areas such as the Tibet of China, Qinghai and Xinjiang, solar energy resources is very abundant, and the sunshine duration in year, especially more than 3000 hours, belongs to one of abundant area of world's solar energy resources.Worldwide, the Demonstration Station of existing multiple employing slot type and tower type solar generation technology is put into commercial operation at present.Comparatively speaking, the energy density of solar energy is low and exist round the clock and seasonal variety, and this cannot ensure the lasting of solar energy resources and stablely to export, need by certain energy storage device.
Meanwhile, the biomass straw Annual output of China is 8.42 hundred million tons, and wherein Collection utilization amount can reach 6.86 hundred million tons, Utilization prospects is boundless.The technological means that utilizes that current living beings make power applications mainly comprises burning, pyrolysis and gasification, wherein can be produced by gasification and be rich in H
2with the synthetic gas of CO, can combine with efficient fuel gas generation technology to form overall biomass gasification burning one steam combined cycle system (BIGCC).Existing biomass gasification technology mainly adopts the mode of spontaneous combustion to provide the heat required for reaction.Select air or wet air as gasifying agent, sufficient heat is provided for gasifying by the oxygen composition that contains in air and living beings generation oxidation reaction, the generation heat that also can utilize to maintain reaction temperature higher in gasification reactor, the CO of simultaneously water vapour and generation
2reduction reaction will be given birth to biomass fermentation, finally generate H
2with compositions such as CO.But still there is a lot of defect in this type of biomass gasification technology, heat wherein required for gasification reaction is provided by biomass burning, the biological quality of reaction heat is provided to account for 1/3 of the original input quantity of living beings, directly cause the decline of gasification gas production, and produce CO because the oxidation reaction existed makes to gasify
2measure higher, the impurity simultaneously produced because of burning also will pollute gasification synthesis gas, and the gas purification load in later stage is increased.Heat source temperature required for gasification of biomass only needs about 850 DEG C, and conventional gasification technology but directly burns the living beings chemical energy of high-quality to provide gasification thermal source, result in the not counterpart of energy grade, does not really realize the object of making the best use of everything.
Compared with fossil fuel, solar energy and living beings possess the plurality of advantages such as reserves clean with use greatly, this kind of renewable energy sources is utilized can effectively to alleviate the problems such as increasingly serious environmental pollution, solar energy is the thermal source that the flow process such as living beings drying and gasification provides phase matching temperature with it simultaneously, reduces energy grade loss.
Have an eye on the future, energy resource supply is by towards efficient and clean future development, and improving and promoting simultaneously along with the clean and effective such as fuel cell and hydrogen energy automobile energy utilization technology, for the demand of all kinds of clean fuel such as hydrogen and methyl alcohol also by rapid growth.The existing fossil fuel gasification of simple dependence and gas renormalizing technology, not only can not meet following energy demand, also not meet energy sustainable development direction simultaneously.Effectively can alleviate the contradiction between growing energy demand and limited fossil energy reserves by renewable energy sourcess such as abundant solar energy and living beings, but how realize the reliable of renewable energy sources and stable output then becomes current problem demanding prompt solution.
Summary of the invention
(1) technical problem that will solve
In view of this, main purpose of the present invention is to provide a kind of living beings and solar energy of utilizing to produce the polygenerations systeme of methyl alcohol and generating, to realize solar energy to chemical transformation of energy, and the energy storage difficulty solving current solar energy is large and renewable energy sources carries the problems such as poor stability, also improves the effective rate of utilization of living beings simultaneously.
(2) technological scheme
For achieving the above object, the invention provides a kind of living beings and solar energy of utilizing to produce the polygenerations systeme of methyl alcohol and generating, this polygenerations systeme comprises:
Solar energy heating reaction subtense angle, comprise plate type solar exsiccator 1, trough type solar heat-collector 2, steam generator 3 and tower type solar reflector field 4, wherein, plate type solar exsiccator 1 utilizes the solar energy absorbed to carry out drying to the living beings S1 entered wherein, and dried living beings S1 is sent into the tower high temperature gasification reactor 5 of biogas sub-systems; The hot junction of steam generator 3 is imported and exported and is connected with trough type solar heat-collector 2 is closed, utilizes the heat of trough type solar heat-collector 2 to make the water S2 entered in steam generator 3 become steam, and steam is sent into tower high temperature gasification reactor 5; Tower type solar reflector field 4 is arranged in tower high temperature gasification reactor 5 around, as the thermal source of tower high temperature gasification reactor 5 high-temperature gasification reaction;
Biogas sub-systems, comprise tower high temperature gasification reactor 5, gas desuperheater 6 and gas condensation purifier 7, wherein, tower high temperature gasification reactor 5 utilizes tower type solar reflector field 4 to reflect and focuses on and obtains high temperature heat source, make to enter the steam generation high-temperature gasification reaction that dried living beings S1 wherein and steam generator 3 generate and produce high-temperature gas, first this high-temperature gas is cooled by gas desuperheater 6, and deliver to condensation of gas purifier 7 and carry out follow-up moisture and be separated and gas purification, treated gas is sent to the compressor bank 8 of methanol-fueled CLC subtense angle,
Methanol-fueled CLC subtense angle, comprise compressor bank 8, methyl alcohol synthetic reactor 9, heat exchanger 10, gas-liquid desuperheater 11, flash drum 12, separator 13, mixer 14, rectifying column 15 and methanol tank 16, wherein, compressor bank 8 is carried out multistage pressurization to the gas entered and is delivered in methyl alcohol synthetic reactor 9 after utilizing heat exchanger 10 to complete preheating, the methyl alcohol produced after reaction in methyl alcohol synthetic reactor 9 and the gas-liquid mixture of unreacting gas are lowered the temperature through heat exchanger 10 and gas-liquid desuperheater 11 successively, gas-liquid mixture after cooling utilizes flash drum 12 to carry out gas-liquid separation, isolated liquid methanol is delivered in methanol tank 16 after rectifying column 15 is purified, isolated gas utilizes separator 13 to carry out adjustment and is separated into two strands of gases, one gas circulation is returned to compressor bank 8 and proceeds Methanol Synthesis Process, another strand of gas is then sent in the firing chamber 17 of power generation sub-system through mixer 14 and is burnt together with the isolated gas componant of rectifying column 15,
Power generation sub-system, comprise firing chamber 17, compressor 18, combustion gas turbine 19, exhaust heat boiler 20, steam turbine 21, condenser 22, feed water pump 23 and generator 24, wherein, air S3 delivers to firing chamber 17 to provide oxygen gas component after compressor 18 compresses, the high-temperature flue gas produced in firing chamber 17 promotes combustion gas turbine 19 and does work, the flue gas that combustion gas turbine 19 discharges is sent in exhaust heat boiler 20 to be produced Steam Actuation steam turbine 21 and does work, exhaust heat boiler 20, steam turbine 21, condenser 22, feed water pump 23 and generator 24 form complete Rankine power cycle, generator 24 is finally utilized to produce electric energy.
In such scheme, described plate type solar exsiccator 1 directly utilizes air as medium dried biomass S1, is all removed by the water constituent contained by living beings S1.
In such scheme, described trough type solar heat-collector 2 using conduction oil as heat absorption working medium, and utilizes solar radiant energy to heat water S2 by steam generator 3, makes it be converted into saturated vapour.
In such scheme, described tower high temperature gasification reactor 5 carrys out focused solar energy, to provide high-temperature gasification heat source for reaction by the tower reflector field 4 be arranged in around it.
In such scheme, described gas desuperheater 6 and described methyl alcohol synthetic reactor 9 all will discharge a large amount of heats, and this heat is introduced in power generation sub-system further by the form of heated feed water.
In such scheme, described methyl alcohol synthetic reactor 9 outlet streams utilize heat exchanger 10 by sensible heat transfer to inlet streams to improve methanol-fueled CLC rate, and continue to deliver to gas-liquid desuperheater 11 and be beneficial to follow-up gas-liquid separation, utilize the sensible heat of release to provide middle low temperature boiling hot source again for rectifying column 15 simultaneously.
In such scheme, described flash drum 12 is for separating of the gas do not synthesized in methyl alcohol synthetic reactor 9, and these gas separaion are become two bursts of sub-logistics of gas by described separator 13, deliver to compressor bank 8 and power generation sub-system respectively.
In such scheme, this polygenerations systeme realizes the output production capacity adjustment of methyl alcohol and electric energy by the unreacting gas cycle ratio adjusting separator 13 and distributes.
(3) beneficial effect
Can find out from technique scheme, the present invention has following beneficial effect:
1, living beings and the solar energy of utilizing provided by the invention is to produce the polygenerations systeme of methyl alcohol and generating, using energy source mechanism based on " temperature counterpart; cascade utilization " completes the drying of living beings, gasification and production of steam process by different solar heat collectors, can the heat energy utilization situation of optimization system, improve the overall thermal efficiency and reduce the investment of equipment of system.
2, living beings and the solar energy of utilizing provided by the invention is to produce the polygenerations systeme of methyl alcohol and generating, solar energy is used to provide pyroreaction thermal source for biological respinse, decrease the oxidizing fire amount of living beings, improve the effective rate of utilization of living beings, the gas yield of gasification reaction will significantly increase, the CO comparatively speaking in gas
2component also will significantly reduce, and improve the degree of purity of gas because there is not combustion reaction in reactor simultaneously, and this will reduce follow-up gas purification purification burden.
3, living beings and the solar energy of utilizing provided by the invention is to produce the polygenerations systeme of methyl alcohol and generating, the product of system mainly comprises methyl alcohol and electric energy, by changing into the high and clean gaseous fuel chemical energy of quality by having intermittent and dispersed solar energy, the formal transformation not only achieving solar energy is beneficial to store and transmission, also achieves the quality-improving of living beings chemical energy simultaneously.
4, living beings and the solar energy of utilizing provided by the invention is to produce the polygenerations systeme of methyl alcohol and generating, it is the Green System of a set of environmental protection and energy saving, take full advantage of high-temperature gas sensible heat and the methanol-fueled CLC thermal discharge of gasification generation, few energy consumption is polluted low in the production run process of simultaneity factor, and consumption renewable energy sources, the methyl alcohol simultaneously produced also is a kind of clean liquid fuel.
5, living beings and the solar energy of utilizing provided by the invention is to produce the polygenerations systeme of methyl alcohol and generating, the product of system mainly comprises methyl alcohol and electric energy, achieve the variation that product exports, avoid causing system effectiveness to decline for the higher methanol output of single pursuit, realize the adjustment of each Product yields by the mode such as vapor flow of adjustment unreacting gas cycle ratio, gasification reaction temperature and input, meeting consumers' demand better simultaneously.
Accompanying drawing explanation
Fig. 1 be according to the embodiment of the present invention utilize living beings and solar energy to produce the structural representation of the polygenerations systeme of methyl alcohol and generating.
In Fig. 1, the reference character of each parts is: 1-plate type solar exsiccator, 2-trough type solar heat-collector, 3-steam generator, 4 tower type solar reflector fields, 5-tower high temperature gasification reactor, 6-gas desuperheater, 7-condensation of gas purifier, 8-compressor bank, 9-methyl alcohol synthetic reactor, 10-heat exchanger, 11-gas-liquid desuperheater, 12-flash drum, 13-separator, 14-mixer, 15-rectifying column, 16-methanol tank, 17-firing chamber, 18-compressor, 19-combustion gas turbine, 20-exhaust heat boiler, 21-steam turbine, 22-condenser, 23-feed water pump, 24-generator, S1-living beings, S2-water, S3-air, S4-flue gas.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in more detail.
Fig. 1 be living beings and the solar energy of utilizing provided by the invention to produce the structural representation of the polygenerations systeme of methyl alcohol and generating, this system comprise solar energy heating reaction subtense angle, biogas sub-systems, methanol-fueled CLC subtense angle and power generation sub-system, wherein:
Solar energy heating reaction subtense angle comprises plate type solar exsiccator 1, trough type solar heat-collector 2, steam generator 3 and tower type solar reflector field 4, wherein, plate type solar exsiccator 1 utilizes the solar energy absorbed to carry out drying to the living beings S1 entered wherein, and dried living beings S1 is sent into the tower high temperature gasification reactor 5 of biogas sub-systems; The hot junction of steam generator 3 is imported and exported and is connected with trough type solar heat-collector 2 is closed, utilizes the heat of trough type solar heat-collector 2 to make the water S2 entered in steam generator 3 become steam, and steam is sent into tower high temperature gasification reactor 5; Tower type solar reflector field 4 is arranged in tower high temperature gasification reactor 5 around, as the thermal source of tower high temperature gasification reactor 5 high-temperature gasification reaction.
Biogas sub-systems comprises tower high temperature gasification reactor 5, gas desuperheater 6 and gas condensation purifier 7, wherein, tower high temperature gasification reactor 5 utilizes tower type solar reflector field 4 to reflect and focuses on and obtains high temperature heat source, make to enter the steam generation high-temperature gasification reaction that dried living beings S1 wherein and steam generator 3 generate and produce high-temperature gas, first this high-temperature gas is cooled by gas desuperheater 6, and deliver to condensation of gas purifier 7 and carry out follow-up moisture and be separated and gas purification, treated gas is sent to the compressor bank 8 of methanol-fueled CLC subtense angle.
Methanol-fueled CLC subtense angle comprises compressor bank 8, methyl alcohol synthetic reactor 9, heat exchanger 10, gas-liquid desuperheater 11, flash drum 12, separator 13, mixer 14, rectifying column 15 and methanol tank 16, wherein, compressor bank 8 is carried out multistage pressurization to the gas entered and is delivered in methyl alcohol synthetic reactor 9 after utilizing heat exchanger 10 to complete preheating, the methyl alcohol produced after reaction in methyl alcohol synthetic reactor 9 and the gas-liquid mixture of unreacting gas are lowered the temperature through heat exchanger 10 and gas-liquid desuperheater 11 successively, gas-liquid mixture after cooling utilizes flash drum 12 to carry out gas-liquid separation, isolated liquid methanol is delivered in methanol tank 16 after rectifying column 15 is purified, isolated gas utilizes separator 13 to carry out adjustment and is separated into two strands of gases, one gas circulation is returned to compressor bank 8 and proceeds Methanol Synthesis Process, another strand of gas is then sent in the firing chamber 17 of power generation sub-system through mixer 14 and is burnt together with the isolated gas componant of rectifying column 15.
Power generation sub-system comprises firing chamber 17, compressor 18, combustion gas turbine 19, exhaust heat boiler 20, steam turbine 21, condenser 22, feed water pump 23 and generator 24, wherein, air S3 delivers to firing chamber 17 to provide oxygen gas component after compressor 18 compresses, the high-temperature flue gas produced in firing chamber 17 promotes combustion gas turbine 19 and does work, the flue gas that combustion gas turbine 19 discharges is sent in exhaust heat boiler 20 to be produced Steam Actuation steam turbine 21 and does work, exhaust heat boiler 20, steam turbine 21, condenser 22, feed water pump 23 and generator 24 form complete Rankine power cycle, generator 24 is finally utilized to produce electric energy.
Wherein, plate type solar exsiccator 1 directly utilizes air as medium dried biomass S1, is all removed by the water constituent contained by living beings S1.Trough type solar heat-collector 2 using conduction oil as heat absorption working medium, and utilizes solar radiant energy to heat water S2 by steam generator 3, makes it be converted into saturated vapour.Tower high temperature gasification reactor 5 carrys out focused solar energy, to provide high-temperature gasification heat source for reaction by the tower reflector field 4 be arranged in around it.Gas desuperheater 6 and described methyl alcohol synthetic reactor 9 all will discharge a large amount of heats, and this heat is introduced in power generation sub-system further by the form of heated feed water.Methyl alcohol synthetic reactor 9 outlet streams utilize heat exchanger 10 by sensible heat transfer to inlet streams to improve methanol-fueled CLC rate, and continue to deliver to gas-liquid desuperheater 11 and be beneficial to follow-up gas-liquid separation, utilize the sensible heat of release to provide middle low temperature boiling hot source again for rectifying column 15 simultaneously.Flash drum 12 is for separating of the gas do not synthesized in methyl alcohol synthetic reactor 9, and these gas separaion are become two bursts of sub-logistics of gas by described separator 13, deliver to compressor bank 8 and power generation sub-system respectively.This polygenerations systeme realizes the output production capacity adjustment of methyl alcohol and electric energy by the unreacting gas cycle ratio adjusting separator 13 and distributes.
In FIG, living beings S1 is connected with plate type solar exsiccator 1 entrance, the hot junction of steam generator 3 is connected with trough type solar heat-collector 2 is closed, water S2 is connected with the cold-side inlet of steam generator 3, 1 outlet of plate type solar exsiccator is all connected with tower high temperature gasification reactor 5 entrance with the cold side outlet of steam generator 3, the outlet of tower high temperature gasification reactor 5 successively with gas desuperheater 6, condensation of gas purifier 7 connects and is connected with compressor bank 8, compressor bank 8 is connected with methyl alcohol synthetic reactor 9 through heat exchanger 10, methyl alcohol synthetic reactor 9 export successively with heat exchanger 10, gas-liquid desuperheater 11 is connected with flash drum 12, the liquid-phase outlet of flash drum 12 is connected with rectifying column 15 and methanol tank 16 successively, after the gaseous phase outlet of flash drum 12 is connected with separator 13, exit gas is divided into two strands, one is connected with compressor bank 8 entrance, another strand enters mixer 14 together with the gas outlet of rectifying column 15, the outlet of mixer 14 is connected with power generation sub-system implements the flow process that generates electricity of doing work.
Utilize living beings and solar energy shown in Fig. 1 to the idiographic flow in the polygenerations systeme producing methyl alcohol and generating are: living beings S1 carries out in plate type solar exsiccator 1, and water S1 produces steam by trough type solar heat-collector 2 and steam generator 3 simultaneously; The water vapour of dried living beings and production together sends into tower high temperature gasification reactor 5, utilize tower type solar reflector field 4 to reflect and focus on and obtain high temperature heat source, first the high-temperature gas that gasification produces is cooled by gas desuperheater 6, and delivers to condensation of gas purifier 7 and carry out follow-up moisture and be separated and gas purification; Treated gas is delivered to compressor bank 8 and is carried out multistage pressurization and deliver in methyl alcohol synthetic reactor 9 after utilizing heat exchanger 10 to complete preheating, and the methyl alcohol produced after reaction and the gas-liquid mixture of unreacting gas lower the temperature to provide air preheat and methanol rectification thermal source respectively through heat exchanger 10 and gas-liquid desuperheater 11 with this; Gas-liquid mixture after cooling utilizes flash drum 12 to carry out gas-liquid separation, isolated liquid methanol is delivered in methanol tank 16 after rectifying column 15 is purified, isolated gas utilizes separator 13 to carry out adjustment and is separated into two strands of gases, one circulation is returned to compressor bank 8 and proceeds Methanol Synthesis Process, another stock is then sent in firing chamber 17 through mixer 14 and is burnt together with the isolated gas componant of rectifying column 15, is come methanol output and the generated output of adjust system by the unreacting gas cycle ratio adjusting separator 13; Air S3 delivers to firing chamber 17 to provide oxygen gas component after compressor 18 compresses, the high-temperature flue gas produced promotes combustion gas turbine 19 and does work, and then utilize the flue gas of discharge to deliver in exhaust heat boiler 20 to produce Steam Actuation steam turbine 21 and do work, and form complete Rankine power cycle with condenser 22 and feed water pump 23, finally utilize generator 24 to produce electric energy; Gas desuperheater 6 and methyl alcohol synthetic reactor 9 discharge a large amount of heats, will be introduced in power generation sub-system by forms such as heated feed waters.
Living beings and the solar energy of utilizing provided by the present invention, to produce the polygenerations systeme of methyl alcohol and generating, has carried out reasonable integrated utilization to two kinds of renewable energy sourcess, provides methyl alcohol required for market and electric energy by follow-up production process.In embodiment, adoptable major parameter is as shown in table 1.
Table 1
| Solar energy heating part | |
| Board-like sun solar energy drying actuator temperature DEG C/thermal efficiency % | 80/60 |
| Trough type solar heat-collector temperature DEG C/thermal efficiency % | 210/56 |
| Tower high temperature gasification reactor temperature DEG C/thermal efficiency % | 850/45 |
| Gasification of biomass part |
| Gasification reaction temperature DEG C/pressure bar | 850/18 |
| Gas desuperheater outlet temperature DEG C | 165 |
| Methanol-fueled CLC part | |
| Compressor bank outlet pressure bar/ efficiency % | 100/79 |
| Methyl alcohol synthetic reactor reaction temperature DEG C | 245 |
| Unreacting gas cycle ratio | 0 |
| Acting power generation part | |
| Compressor pressure ratio/efficiency | 15.4/85 |
| Combustion chambers burn temperature DEG C | 1200 |
| Combustion gas turbine efficiency %/delivery temperature DEG C | 87/592.7 |
| Steam turbine inlet temperature DEG C/pressure bar | 565/96.2 |
For the benefit of to the lateral comparison of co-generation system performance proposed by the invention, divide product system and generating point product system as reference system to produce methyl alcohol.Co-generation system selects cotton in Xinjiang stalk as research object, system-computed is carried out with the empty butt stalk input flow rate of 100kg.s, reference system all adopts solar energy drying living beings, but uses wet air as gasifying agent, and methyl alcohol divides the unreacting gas cycle ratio of product system to be set as 0.9 simultaneously.The thermal performance of embodiment and two groups of reference systems contrasts as shown in table 2
Table 2
Living beings and the solar energy of utilizing provided by the invention reaches 43.86% and 49.17% to the thermal efficiency and exergy efficiencyX of producing the polygenerations systeme of methyl alcohol and generating, 8.13 and 17.11 percentage points are exceeded than a generating point product system, divide product system low 5.3 percentage points though make system thermal efficiency ratio produce methyl alcohol by the impact that solar energy heating efficiency is lower, but system exergy efficiencyX has exceeded 6.15 percentage points, in general, the renewable energy sources different with living beings two kinds by solar energy is carried out arranging in pairs or groups and completes the relevant system intergration, polygenerations systeme provided by the invention is made to have good system advantage.System relative energy saving ratio based on entropy analysis can reach 23.89%, when exporting identical methanol output and generated output, the biomass energy-saving rate of system is especially up to 51.74%, and the living beings consumption of system reduces over half relatively, achieves the efficiency utilization of renewable energy sources.
Above-described specific embodiment; object of the present invention, technological scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. utilize living beings and solar energy to produce a polygenerations systeme for methyl alcohol and generating, it is characterized in that, this polygenerations systeme comprises:
Solar energy heating reaction subtense angle, comprise plate type solar exsiccator (1), trough type solar heat-collector (2), steam generator (3) and tower type solar reflector field (4), wherein, plate type solar exsiccator (1) utilizes the solar energy absorbed to carry out drying to the living beings entered wherein (S1), and dried living beings (S1) are sent into the tower high temperature gasification reactor (5) of biogas sub-systems; Be connected closed with trough type solar heat-collector (2) is imported and exported in the hot junction of steam generator (3), utilize the heat of trough type solar heat-collector (2) to make the water (S2) entered in steam generator (3) become steam, and steam is sent into tower high temperature gasification reactor (5); Tower type solar reflector field (4) is arranged in tower high temperature gasification reactor (5) around, as the thermal source of tower high temperature gasification reactor (5) high-temperature gasification reaction;
Biogas sub-systems, comprise tower high temperature gasification reactor (5), gas desuperheater (6) and gas condensation purifier (7), wherein, tower high temperature gasification reactor (5) utilizes tower type solar reflector field (4) to reflect and focuses on and obtains high temperature heat source, make to enter the steam generation high-temperature gasification reaction that dried living beings (S1) wherein and steam generator (3) generate and produce high-temperature gas, first this high-temperature gas is cooled by gas desuperheater (6), and deliver to condensation of gas purifier (7) and carry out follow-up moisture and be separated and gas purification, treated gas is sent to the compressor bank (8) of methanol-fueled CLC subtense angle,
Methanol-fueled CLC subtense angle, comprise compressor bank (8), methyl alcohol synthetic reactor (9), heat exchanger (10), gas-liquid desuperheater (11), flash drum (12), separator (13), mixer (14), rectifying column (15) and methanol tank (16), wherein, compressor bank (8) is carried out multistage pressurization to the gas entered and is delivered in methyl alcohol synthetic reactor (9) after utilizing heat exchanger (10) to complete preheating, the methyl alcohol produced after reaction in methyl alcohol synthetic reactor (9) and the gas-liquid mixture of unreacting gas are successively through heat exchanger (10) and gas-liquid desuperheater (11) cooling, gas-liquid mixture after cooling utilizes flash drum (12) to carry out gas-liquid separation, isolated liquid methanol is delivered in methanol tank (16) after rectifying column (15) is purified, isolated gas utilizes separator (13) to carry out adjustment and is separated into two strands of gases, one gas circulation is returned to compressor bank (8) and proceeds Methanol Synthesis Process, another strand of gas is then sent in the firing chamber (17) of power generation sub-system through mixer (14) and is burnt together with rectifying column (15) isolated gas componant,
Power generation sub-system, comprise firing chamber (17), compressor (18), combustion gas turbine (19), exhaust heat boiler (20), steam turbine (21), condenser (22), feed water pump (23) and generator (24), wherein, air (S3) delivers to firing chamber (17) to provide oxygen gas component after compressor (18) compression, the high-temperature flue gas produced in firing chamber (17) promotes combustion gas turbine (19) acting, the flue gas that combustion gas turbine (19) discharges is sent in exhaust heat boiler (20) produces Steam Actuation steam turbine (21) acting, exhaust heat boiler (20), steam turbine (21), condenser (22), feed water pump (23) and generator (24) form complete Rankine power cycle, generator (24) is finally utilized to produce electric energy.
2. living beings and the solar energy of utilizing according to claim 1 is to produce the polygenerations systeme of methyl alcohol and generating, it is characterized in that, described plate type solar exsiccator (1) directly utilizes air as medium dried biomass (S1), is all removed by the water constituent contained by living beings (S1).
3. living beings and the solar energy of utilizing according to claim 1 is to produce the polygenerations systeme of methyl alcohol and generating, it is characterized in that, described trough type solar heat-collector (2) is using conduction oil as heat absorption working medium, and utilize solar radiant energy to heat water (S2) by steam generator (3), make it be converted into saturated vapour.
4. living beings and the solar energy of utilizing according to claim 1 is to produce the polygenerations systeme of methyl alcohol and generating, it is characterized in that, described tower high temperature gasification reactor (5) carrys out focused solar energy, to provide high-temperature gasification heat source for reaction by the tower reflector field (4) be arranged in around it.
5. living beings and the solar energy of utilizing according to claim 1 is to produce the polygenerations systeme of methyl alcohol and generating, it is characterized in that, described gas desuperheater (6) and described methyl alcohol synthetic reactor (9) all will discharge a large amount of heats, and this heat is introduced in power generation sub-system further by the form of heated feed water.
6. living beings and the solar energy of utilizing according to claim 1 is to produce the polygenerations systeme of methyl alcohol and generating, it is characterized in that, the outlet streams of described methyl alcohol synthetic reactor (9) utilize heat exchanger (10) by the sensible heat transfer of release to inlet streams to improve methanol-fueled CLC rate, and continue the outlet streams of described methyl alcohol synthetic reactor (9) is delivered to gas-liquid desuperheater (11) to be beneficial to follow-up gas-liquid separation, the sensible heat simultaneously utilizing the release in heat exchanger (10) of the outlet streams of described methyl alcohol synthetic reactor (9) is that rectifying column (15) provides middle low temperature boiling hot source again.
7. living beings and the solar energy of utilizing according to claim 1 is to produce the polygenerations systeme of methyl alcohol and generating, it is characterized in that, described flash drum (12) is for separating of the gas do not synthesized in methyl alcohol synthetic reactor (9), these gas separaion are become two bursts of sub-logistics of gas by described separator (13), deliver to compressor bank (8) and power generation sub-system respectively.
8. living beings and the solar energy of utilizing according to claim 1 is to produce the polygenerations systeme of methyl alcohol and generating, it is characterized in that, this polygenerations systeme realizes the output production capacity adjustment of methyl alcohol and electric energy by the unreacting gas cycle ratio of adjustment separator (13) and distributes.
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| CN104193584A (en) * | 2014-08-04 | 2014-12-10 | 广东合即得能源科技有限公司 | Manufacturing process of methanol |
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| CN104862010B (en) * | 2015-06-04 | 2017-10-27 | 中国科学院工程热物理研究所 | A kind of solar energy gasification system based on groove tower combination spot mode |
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| CN108442982B (en) * | 2018-04-25 | 2023-08-29 | 华北电力大学 | Solar integrated coal-based methanol synthesis and power generation co-production system |
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