CN109929572A - The method and system of power plants generating electricity coupling production clean coal - Google Patents
The method and system of power plants generating electricity coupling production clean coal Download PDFInfo
- Publication number
- CN109929572A CN109929572A CN201711353265.XA CN201711353265A CN109929572A CN 109929572 A CN109929572 A CN 109929572A CN 201711353265 A CN201711353265 A CN 201711353265A CN 109929572 A CN109929572 A CN 109929572A
- Authority
- CN
- China
- Prior art keywords
- coal
- flue gas
- boiler
- removing impurities
- power plant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
- Chimneys And Flues (AREA)
Abstract
The present invention relates to power plants generating electricities to couple field with coal-fired clean manufacturing, discloses the method and system of power plant's coupling production clean coal.This method comprises: (1) carries out coal conversion with the first flue gas indirect heating raw coal from boiler of power plant, final conversion temperature is 500~640 DEG C, and transformation time is 10~60min, obtains the first flue gas, the first pyrolysis gas and conversion coal；(2) conversion coal is subjected to coal removing impurities with the second flue gas indirect heating from boiler of power plant, final removing impurities temperature is 650~750 DEG C, and the removing impurities time is 10~60min, obtains the second flue gas, the second pyrolysis gas and removing impurities coal；(3) the first flue gas and the second flue gas are converged to return to flue gas feeding boiler of power plant and being used to generate electricity；It is successively burnt and is exchanged heat after first pyrolysis gas and the second pyrolysis gas are converged；(4) removing impurities coal is carried out dry and cold obtaining clean coal.It realizes the production of power plant's normal power generation, while low order raw coal is produced as clean coal.
Description
Technical field
The present invention relates to power plants generating electricities to couple field with coal-fired clean manufacturing, couples and gives birth to more particularly to a kind of power plants generating electricity
Produce the method and system of clean coal.
Background technique
China is in energy consumption structure, and the consumption of coal is in the highest flight.The power generation production of coal-fired firepower electrical plant is in recent years
There are losses due to poor management, coal-burning power plant's rate of load condensate is integrally lower, constrain the sustainable development of power industry.
In addition the civilian scattered flue gas emission for burning coal-fired process generation is the major reason for causing haze.It is increasingly serious to administer
Atmosphere polluting problem, country has put into effect policy document in succession, has carried out action and administer atmospheric environment.Compared with coal-burning power plant, 300,000,000
The civilian scattered burning coal of ton or so, coal quality is poor, pollutant catabolic gene difficulty is big, is acknowledged as air contaminant treatment field and is difficult to cure
" cancer ".Therefore scattered coal is cleaned extremely urgent.
Therefore, power plants generating electricity production and scattered coal, which are cleaned, develops focus of attention as current coal and electricity power enterprise.
CN106382790A discloses a kind of brown coal drying method using power-plant flue gas and steam waste heat, comprising: (1) sharp
Primary drying processing is carried out to moist material with the high-temperature flue gas that coal-fired boiler in power plant directly excludes；The high-temperature flue gas directly with
Moist material is uniformly contacted, and intermediate material is obtained；(2) high-temperature flue gas for recycling coal-fired boiler in power plant directly to exclude and steaming
Vapour carries out redrying processing to intermediate material simultaneously；The high-temperature flue gas is directly uniformly contacted with intermediate material, simultaneously
Intermediate material uniformly contacts with the heat exchanger tube for being connected with steam and carries out heat exchange, obtains dried material, realizes redrying processing.It should
Method is only able to achieve combining for power-plant flue gas and the drying of coal, but how to solve power plant without enlightenment and clean coal production is united
Problem.
CN102350214A discloses a kind of coal-fired power plant coal dust prepared activated coke flue gas comprehensive purification technique, comprising: 1)
The coal dust of coal dust storage tank is carried by compressed air, is pumped into carbonization-activation furnace by pulverized coal bin, while from the extraction section temperature that comes
Heat source and activator are carbonized as coal dust for 500-1200 DEG C of flue gas, is sent into the bottom of activated charcoal activation furnace, it is mixed with coal dust
It closes, flue gas carries the bottom-up movement of coal dust, while charing and priming reaction occurs, and obtains powdered activated coke；2) flue gas carries
Activated coke enters separator and realizes that gas solid separation, the activated coke isolated are sent into through active coke bin pump II after cooler is cooling and live
Property coke storage tank is stored；The pyrolysis gas that separator is isolated is sent into the reducing zone of boiler as reburning fuel, by main burning area
The NO of generationxIt is reduced into N2, realize NOxPartial removal；3) flue gas being discharged from boiler enters after pre-duster is handled inhales
Attached tower is sufficiently mixed in adsorption tower with the activated coke being sent by activated coke storage tank；Water pump extracts the water in technique water tank, by nozzle
Spray into adsorption tower in, adjust the temperature of flue gas, 60-120 DEG C at a temperature of flue gas in SO2It is adsorbed with mercury by activated coke；Ammonia
Gas conveying fan extracts the NO that the ammonia in ammonia tank is sprayed by the ammonia nozzle on adsorption tower top in ammonia, with flue gasxHair
Raw redox reaction generates N2, realize NOxRemoving；4) purified flue gas enters cloth bag separator progress gas solid separation, only
Gas after change is sent into chimney by air-introduced machine and is directly discharged into atmosphere, and isolated activated coke a part is sent by screw(-type) feeder to be adsorbed
Circulation is participated in tower, another part, which is sent into regenerating furnace, to be regenerated；5) activated coke after regenerating after cooler II is cooling by
Active coke bin pump I is sent into activated coke storage tank and recycles；The sulphur dioxide enrichment gas that concentration is 20-60% is obtained in regenerative process
Body realizes the resource utilization of sulfur dioxide；6) activated coke loses absorption property after multiple absorption/regeneration, will lose absorption
The useless activated coke of performance is sent into boiler combustion, makes full use of the energy of activated coke.This method is used to solve the pollution of power-plant flue gas
Coal is produced activated coke using flue gas, activated coke and the pyrolysis gas of generation is recycled to realize the pollution for reducing flue gas by object discharge
Object discharge.Without reference to and enlighten how using power-plant flue gas produce clean coal, and.
US20170137731A1 discloses a kind of method of coal increasing matter, is removed in coal by heating coal under anaerobic twice
The moisture and by-product contained promotes coal quality, obtains the coal for increasing matter；The by-product burning of discharge is recycled simultaneously as heating coal
Heat source saves energy.First heating is about 400 ℉ (204 DEG C), the second heating about 1500 ℉ (815.6 DEG C).This method is only
Disclose the method that raw coal can be produced as to clean coal, but without reference to how realizing power-plant flue gas and clean coal production
The technical issues of being encountered in joint and the combined process.
In conclusion method disclosed in the prior art does not account for how joining power-plant flue gas and clean coal production
It closes, it is desirable to provide the method for realizing balance power plants generating electricity production and coal clean manufacturing.
Summary of the invention
The purpose of the invention is to how solve to realize combining for power plants generating electricity and coal clean manufacturing, and the two can be balanced
The problem of steady production, provides the method and system of power plants generating electricity coupling production clean coal.
To achieve the goals above, first aspect present invention provides a kind of side of power plants generating electricity coupling production clean coal
Method, comprising:
(1) coal conversion is carried out with the first flue gas indirect heating raw coal of 800~1200 DEG C from boiler of power plant, it is described
The final conversion temperature of coal conversion is 500~640 DEG C, and transformation time is 10~60min, obtains the first flue gas, the first pyrolysis gas
With conversion coal；
(2) the second flue gas indirect heating of 800~1200 DEG C of coal from boiler of power plant of conversion is subjected to coal
Removing impurities, the final removing impurities temperature of the coal removing impurities are 650~750 DEG C, and the removing impurities time is 10~60min, obtain the second flue gas, the
Two pyrolysis gas and removing impurities coal；
(3) the first flue gas and the second flue gas are converged to return to flue gas feeding boiler of power plant and being used to generate electricity；By the first pyrolysis
Gas and the second pyrolysis gas are successively burnt and are exchanged heat after converging, and steam and tail gas are obtained；The steam and tail gas are returned into electricity
Factory's boiler is for generating electricity；
(4) removing impurities coal is carried out dry and cold obtaining clean coal.
Preferably, the temperature of first flue gas and the second flue gas is 900~1000 DEG C.
Preferably, the total flow of first flue gas and the second flue gas is the total stream for the flue gas that boiler of power plant generates
1~30 volume %, further preferably 5~20 volume %, more preferably 5~10 volume % of amount.
Preferably, the volume ratio between first flue gas and the second flue gas is (1~4): 1, further preferably
(1~2): 1.
Preferably, relative to 10000Nm3First flue gas and the second flue gas total flow, the raw coal
Inlet amount is 3000~6000kg, further preferably 4000~5000kg.
Preferably, the ratio between the transformation time and removing impurities time are (1~2): 1.
Preferably, the temperature for returning to flue gas is 750~900 DEG C；The temperature of the steam is 750~900 DEG C；It is described
The temperature of tail gas is 300~500 DEG C, preferably 350~450 DEG C；The flue gas and the total flow of tail gas of returning is described first
100~130 volume % of the total flow of flue gas and the second flue gas, preferably 100~120 volume %, more preferably 105~
120 volume %.
Preferably, the raw coal is at least one of lignite, jet coal and the dross coal of 1~100mm of granularity.
Second aspect of the present invention provides a kind of system of the method application of power plants generating electricity coupling production clean coal of the invention,
Including boiler of power plant 1, raw coal removing impurities unit, mixed-burning furnace 6, waste heat boiler 7, dry and cold device 5 and blower unit 2；Wherein,
For the raw coal removing impurities unit for the flue gas from boiler of power plant 1 to be carried out indirect heating to raw coal, removal is former
Impurity in coal obtains flue gas, pyrolysis gas and removing impurities coal, and flue gas return boiler of power plant 1 is generated electricity；
Mixed-burning furnace 6 is for burning the pyrolysis gas from raw coal removing impurities unit, and the hot wind that the burning is obtained
It is passed through waste heat boiler 7, waste heat boiler 7 is used to the hot wind and boiler feedwater carrying out heat exchange to obtain steam and tail gas；
Waste heat boiler 7 is connected to boiler of power plant 1 and blower unit 2, and the steam returns to boiler of power plant 1, and the tail gas is through drawing
Wind apparatus 2 returns to boiler of power plant 1；
Dry and cold device 5 by dry and cold method for being cooled down to obtain clean coal removing impurities coal.
Preferably, the raw coal removing impurities unit includes reforming unit 3 and removing impurities device 4, wherein
Reforming unit 3 is connected to boiler of power plant 1, removing impurities device 4 and mixed-burning furnace 6；Removing impurities device 4 is connected to boiler of power plant 1, conversion
Device 3, blower unit 2 and dry and cold device 5.
Through the above technical solutions, present invention control comes from power plant flue gas, certain temperature and flow proportional respectively with
Raw coal, conversion coal carry out indirect heating, realize the segmentally heating of raw coal.The heating behaviour that staged operation more flexible can control each section
Make, is conducive to preferably produce clean coal.Raw coal and conversion coal are heated by high-temperature flue gas in the present invention, can remove coal
In impurity, the obtained clean coal such as volatile matter, sulfide, mercury can reduce pollutant emission when coal combustion.Clean coal quality
Amount can achieve the quality standard of household coal as defined in DB13-2081-2014 standard.
Power plants generating electricity is returned again to by the heat that mixed-burning furnace and waste heat boiler can recycle in pyrolysis gas in the present invention.Simultaneously
Tail gas clean-up can use power plant and have device.Thus present invention utilizes the existing fume treatments of power-plant flue gas waste heat and power plant
Device, it is possible to reduce the consumption of coal of power plants generating electricity can be reduced the heat source of clean coal production system and the investment of vent gas treatment.
Detailed description of the invention
Fig. 1 is the flow diagram of the method and system of power plants generating electricity provided by the invention coupling production clean coal.
Specific embodiment
The endpoint of disclosed range and any value are not limited to the accurate range or value herein, these ranges or
Value should be understood as comprising the value close to these ranges or value.For numberical range, between the endpoint value of each range, respectively
It can be combined with each other between the endpoint value of a range and individual point value, and individually between point value and obtain one or more
New numberical range, these numberical ranges should be considered as specific open herein.
First aspect present invention provides a kind of method of power plants generating electricity coupling production clean coal, as shown in Figure 1, comprising:
(1) coal conversion is carried out with the first flue gas indirect heating raw coal of 800~1200 DEG C from boiler of power plant, it is described
The final conversion temperature of coal conversion is 500~640 DEG C, and transformation time is 10~60min, obtains the first flue gas, the first pyrolysis gas
With conversion coal；
(2) the second flue gas indirect heating of 800~1200 DEG C of coal from boiler of power plant of conversion is subjected to coal
Removing impurities, the final removing impurities temperature of the coal removing impurities are 650~750 DEG C, and the removing impurities time is 10~60min, obtain the second flue gas, the
Two pyrolysis gas and removing impurities coal；
(3) the first flue gas and the second flue gas are converged to return to flue gas feeding boiler of power plant and being used to generate electricity；By the first pyrolysis
Gas and the second pyrolysis gas are successively burnt and are exchanged heat after converging, and steam and tail gas are obtained；The steam and tail gas are returned into electricity
Factory's boiler is for generating electricity；
(4) removing impurities coal is carried out dry and cold obtaining clean coal.
Preferably, the final conversion temperature is 500~600 DEG C, and the transformation time is 30~45min.
Preferably, the final removing impurities temperature is 650~700 DEG C, and the removing impurities time is 30~45min.
In the present invention, clean coal production is carried out using the hot flue gases from power plant, while the power generation for not influencing power plant is raw
It produces.Step (1) if in carry out the coal conversion and can be realized first flue gas to the indirect heating to the raw coal i.e.
Can, it can be carried out in rotary kiln, tower moving bed or rake moving bed, realize the light objects such as moisture, the volatile component in raw coal
The removal of matter.Preferably, the temperature of first flue gas and the second flue gas is 900~1000 DEG C.
In the present invention, the hot flue gases that first flue gas and the second flue gas are produced from boiler of power plant, Ke Yiyong
It is produced in power generation.It can be used as the heat source of clean coal production in the present invention using the hot flue gases.Heat can be generated according to power plant
The flow of flue gas and the amount for needing to produce clean coal, draw hot flue gases according to a certain percentage.Preferably, first cigarette
The total flow of road gas and the second flue gas is 1~30 volume % of the total flow for the flue gas that boiler of power plant generates, further excellent
It is selected as 5~20 volume %, more preferably 5~10 volume %.By this restriction, method provided by the invention can satisfy clean coal
Production, and the heat converted through mixed-burning furnace, waste heat boiler of step (3) pyrolysis gas, returns flue gas return power plant can be with
Continue to provide the power generation production of power plant, does not influence power generation production.
In the present invention, first flue gas and the second flue gas are respectively used to step (1) and step (2), are respectively used to
Handle the raw coal and the conversion coal.Each plant demand of first flue gas and the second flue gas meet coal conversion and
The condition of the coal removing impurities, and guarantee that pyrolysis gas returns to the heat of power plant and the return flue gas after step (3) and can continue
The power generation production of power plant is provided, power generation production is not influenced.Preferably, the volume between first flue gas and the second flue gas
Than for (1~4): 1, preferably (1~2): 1.Under this restriction, power plants generating electricity production is may be implemented in method provided by the invention
Clean coal is produced simultaneously.
In the present invention, still through the mode of indirect heating in step (2), it may be implemented under conditions of the coal removing impurities
The impurity such as the mercury contained in the conversion coal are removed, clean the conversion coal more.Step (2) is as long as middle carry out the coal removing impurities
Can be realized second flue gas and the conversion coal progress mediate contact, can rotary kiln, tower moving bed or
It is carried out in rake moving bed.
In the present invention, it is preferable that relative to 10000Nm3First flue gas and the second flue gas total flow, institute
The inlet amount for stating raw coal is 3000~6000kg, preferably 4000~5000kg.It can guarantee that both having completed raw coal is produced as cleaning
Coal, but the heat, the return flue gas that guarantee that the pyrolysis gas is converted through mixed-burning furnace, waste heat boiler can still continue to provide power plant
Power generation production.
In the present invention, it is preferable that the ratio between the transformation time and removing impurities time are (1~2): 1.Guarantee the life of clean coal
It produces, while heat, the return flue gas that the pyrolysis gas is converted through mixed-burning furnace, waste heat boiler can continue on for power plants generating electricity
Production.
In the present invention, the return flue gas, steam, tail gas return to power plant and produce for cell power generation.Preferably, described
The temperature for returning to flue gas is 750~900 DEG C；The temperature of the steam is 750~900 DEG C；The temperature of the tail gas be 300~
500 DEG C, preferably 350~450 DEG C；The flue gas and the total flow of tail gas of returning is first flue gas and the second flue gas
Total flow 100~130 volume %, preferably 100~120 volume %, more preferably 105~120 volume %.Tail gas is to return
The form of wind returns to power plant through blower unit.
In the present invention, the removing impurities coal refers in method provided by the invention, and raw coal is removed through the processing of dry and removing impurities
Obtained after impurity without cooling coal.
In the present invention, the raw coal can be with there is no particular limitation.Preferably, the raw coal is the brown of 1~100mm of granularity
At least one of coal, jet coal and dross coal.
In the present invention, the quality of obtained clean coal meets DB13-2081-2014 standard.
Second aspect of the present invention provides a kind of system of the method application of power plants generating electricity coupling production clean coal of the invention,
Including boiler of power plant 1, raw coal removing impurities unit, mixed-burning furnace 6, waste heat boiler 7, dry and cold device 5 and blower unit 2；Wherein,
For the raw coal removing impurities unit for the flue gas from boiler of power plant 1 to be carried out indirect heating to raw coal, removal is former
Impurity in coal obtains flue gas, pyrolysis gas and removing impurities coal, and flue gas return boiler of power plant 1 is generated electricity；
Mixed-burning furnace 6 is for burning the pyrolysis gas from raw coal removing impurities unit, and the hot wind that the burning is obtained
It is passed through waste heat boiler 7, waste heat boiler 7 is used to the hot wind and boiler feedwater carrying out heat exchange to obtain steam and tail gas；
Waste heat boiler 7 is connected to boiler of power plant 1 and blower unit 2, and the steam returns to boiler of power plant 1, and the tail gas is through drawing
Wind apparatus 2 returns to boiler of power plant 1；
Dry and cold device 5 by dry and cold method for being cooled down to obtain clean coal removing impurities coal.
In the present invention, it is preferable that the raw coal removing impurities unit includes reforming unit 3 and removing impurities device 4, wherein
Reforming unit 3 is connected to boiler of power plant 1, removing impurities device 4 and mixed-burning furnace 6；Removing impurities device 4 is connected to boiler of power plant 1, conversion
Device 3, blower unit 2 and dry and cold device 5.
In the present invention, reforming unit 3 can be selected from rotary kiln, tower moving bed or rake moving bed.
In the present invention, removing impurities device 4 can be selected from rotary kiln, tower moving bed or rake moving bed.
In the present invention, the existing dry equipment for putting out method is can be used in dry and cold device 5.
In the present invention, there is no particular limitation for mixed-burning furnace 6, the burning of the realization raw coke oven gas commonly used in the art
Equipment.
In the present invention, waste heat boiler 7 can be the conventional use of equipment for realizing the hot air heat exchange in this field.
The present invention will be described in detail by way of examples below.
The clean coal that embodiment and comparative example obtains according to DB13-2081-2014 standard test sulfur content, ash content sulfur-bearing and
Volatile matter content.
The 0.4 weight % of total sulphur content < of regulation clean coal in DB13-2081-2014 standard, 16 weight of content of ashes <
Measure % and 10 weight % of volatile matter content <.
Embodiment 1
(1) by 5000Nm3(lignite, partial size are raw coal of the first flue gas (900 DEG C) of/h to 4500kg in rotary kiln
20mm) indirect heating carries out coal and converts 45min, and final conversion temperature is 600 DEG C, obtains the first flue gas, the first pyrolysis gas and turns
Change coal；
(2) by 5000Nm3The second flue gas (900 DEG C) of/h carries out coal removing impurities to coal indirect heating is converted in rotary kiln
35min, final removing impurities temperature are 650 DEG C, obtain the second flue gas, the second pyrolysis gas and removing impurities coal；
(3) progress of removing impurities coal is dry and cold, obtain clean coal；
(4) it is passed through mixed-burning furnace after converging the first and second pyrolysis gas to burn, obtained hot wind is passed through waste heat boiler
Heat exchange is carried out with boiler feedwater and generates steam and tail gas, and steam (800 DEG C of temperature) is back to boiler of power plant for generating electricity, and tail gas is made
Boiler of power plant is returned for generating electricity through blower unit for return air (450 DEG C of temperature)；First and second flue gases are converged to return to cigarette
(800 DEG C) feeding boiler of power plant of gas are for generating electricity；Return air and the total flow for returning to flue gas are 12000Nm3/h；
The total flow of first flue gas and the second flue gas is equivalent to 5 volume % of boiler of power plant flue gas total flow.
Quality, the flue gas generated energy, (steam+tail gas+return flue gas) generated energy for measuring clean coal, the results are shown in Table 1.
Embodiment 2
(1) 6500Nm is used3The first flue gas (1000 DEG C) of/h (does not glue the raw coal of the 4000kg in tower moving bed
Coal, partial size 30mm) indirect heating, it carries out coal and converts 30min, final conversion temperature is 500 DEG C, obtains the first flue gas, first
Pyrolysis gas and conversion coal；
(2) 3500Nm is used3It is de- to carry out coal to the conversion coal indirect heating in rotary kiln for the second flue gas (1000 DEG C) of/h
Miscellaneous 30min, final removing impurities temperature are 700 DEG C, obtain the second flue gas, the second pyrolysis gas and removing impurities coal；
(3) progress of removing impurities coal is dry and cold, obtain clean coal；
(4) it is passed through mixed-burning furnace after converging the first and second pyrolysis gas to burn, obtained hot wind is passed through waste heat boiler
Heat exchange is carried out with boiler feedwater and generates steam and tail gas, and steam (900 DEG C of temperature) is back to boiler of power plant for generating electricity, and tail gas is made
Boiler of power plant is returned for generating electricity through blower unit for return air (350 DEG C of temperature)；First and second flue gases are converged to return to cigarette
(900 DEG C) feeding boiler of power plant of gas are for generating electricity；Return air and the total flow for returning to flue gas are 11000Nm3/h；
The total flow of first flue gas and the second flue gas is equivalent to 10 volume % of boiler of power plant flue gas total flow.
Quality, the flue gas generated energy, (steam+tail gas+return flue gas) generated energy for measuring clean coal, the results are shown in Table 1.
Embodiment 3
(1) 6000Nm is used3The first flue gas (950 DEG C) of/h to the raw coal of the 5000kg in tower moving bed (jet coal,
Partial size is 3mm) indirect heating, it carries out coal and converts 40min, final conversion temperature is 550 DEG C, obtains the first flue gas, the first pyrolysis
Gas and conversion coal；
(2) 4000Nm is used3It is de- to carry out coal to the conversion coal indirect heating in rotary kiln for the first flue gas (950 DEG C) of/h
Miscellaneous 30min, final removing impurities temperature are 650 DEG C, obtain the second flue gas, the second pyrolysis gas and removing impurities coal；
(3) progress of removing impurities coal is dry and cold, obtain clean coal；
(4) it is passed through mixed-burning furnace after converging the first and second pyrolysis gas to burn, obtained hot wind is passed through waste heat boiler
Heat exchange is carried out with boiler feedwater and generates steam and tail gas, and steam (750 DEG C of temperature) is back to boiler of power plant for generating electricity, and tail gas is made
Boiler of power plant is returned for generating electricity through blower unit for return air (400 DEG C of temperature)；First and second flue gases are converged to return to cigarette
(750 DEG C) feeding boiler of power plant of gas are for generating electricity；Return air and the total flow for returning to flue gas are 105000Nm3/h；
The total flow of first flue gas and the second flue gas is equivalent to 8 volume % of boiler of power plant flue gas total flow.
Quality, the flue gas generated energy, (steam+tail gas+return flue gas) generated energy for measuring clean coal, the results are shown in Table 1.
Embodiment 4
(1) by 5000Nm3(lignite, partial size are raw coal of the first flue gas (800 DEG C) of/h to 4500kg in rotary kiln
20mm) indirect heating carries out coal and converts 45min, and final conversion temperature is 600 DEG C, obtains the first flue gas, the first pyrolysis gas and turns
Change coal；
(2) by 5000Nm3The second flue gas (800 DEG C) of/h carries out coal removing impurities to coal indirect heating is converted in rotary kiln
40min, final removing impurities temperature are 650 DEG C, obtain the second flue gas, the second pyrolysis gas and removing impurities coal；
(3) progress of removing impurities coal is dry and cold, obtain clean coal；
(4) it is passed through mixed-burning furnace after converging the first and second pyrolysis gas to burn, obtained hot wind is passed through waste heat boiler
Heat exchange is carried out with boiler feedwater and generates steam and tail gas, and steam (800 DEG C of temperature) is back to boiler of power plant for generating electricity, and tail gas is made
Boiler of power plant is returned for generating electricity through blower unit for return air (450 DEG C of temperature)；First and second flue gases are converged to return to cigarette
(800 DEG C) feeding boiler of power plant of gas are for generating electricity；Return air and the total flow for returning to flue gas are 12000Nm3/h；
The total flow of first flue gas and the second flue gas is equivalent to 5 volume % of boiler of power plant flue gas total flow.
Quality, the flue gas generated energy, (steam+tail gas+return flue gas) generated energy for measuring clean coal, the results are shown in Table 1.
Embodiment 5
(1) by 5000Nm3(lignite, partial size are raw coal of the first flue gas (1200 DEG C) of/h to 4500kg in rotary kiln
20mm) indirect heating carries out coal and converts 45min, and final conversion temperature is 600 DEG C, obtains the first flue gas, the first pyrolysis gas and turns
Change coal；
(2) by 5000Nm3The second flue gas (120 DEG C) of/h carries out coal removing impurities to coal indirect heating is converted in rotary kiln
40min, final removing impurities temperature are 650 DEG C, obtain the second flue gas, the second pyrolysis gas and removing impurities coal；
(3) progress of removing impurities coal is dry and cold, obtain clean coal；
(4) it is passed through mixed-burning furnace after converging the first and second pyrolysis gas to burn, obtained hot wind is passed through waste heat boiler
Heat exchange is carried out with boiler feedwater and generates steam and tail gas, and steam (800 DEG C of temperature) is back to boiler of power plant for generating electricity, and tail gas is made
Boiler of power plant is returned for generating electricity through blower unit for return air (450 DEG C of temperature)；First and second flue gases are converged to return to cigarette
(800 DEG C) feeding boiler of power plant of gas are for generating electricity；Return air and the total flow for returning to flue gas are 12000Nm3/h；
The total flow of first flue gas and the second flue gas is equivalent to 5 volume % of boiler of power plant flue gas total flow.
Quality, the flue gas generated energy, (steam+tail gas+return flue gas) generated energy for measuring clean coal, the results are shown in Table 1.
Embodiment 6
(1) by 8000Nm3(lignite, partial size are raw coal of the first flue gas (900 DEG C) of/h to 4500kg in rotary kiln
20mm) indirect heating, carry out coal convert 45min, final conversion temperature be 600 DEG C at, obtain the first flue gas, the first pyrolysis gas and
Convert coal；
(2) by 2000Nm3The second flue gas (900 DEG C) of/h carries out coal removing impurities to coal indirect heating is converted in rotary kiln
40min, final removing impurities temperature are 650 DEG C, obtain the second flue gas, the second pyrolysis gas and removing impurities coal；
(3) progress of removing impurities coal is dry and cold, obtain clean coal；
(4) it is passed through mixed-burning furnace after converging the first and second pyrolysis gas to burn, obtained hot wind is passed through waste heat boiler
Heat exchange is carried out with boiler feedwater and generates steam and tail gas, and steam (800 DEG C of temperature) is back to boiler of power plant for generating electricity, and tail gas is made
Boiler of power plant is returned for generating electricity through blower unit for return air (450 DEG C of temperature)；First and second flue gases are converged to return to cigarette
(800 DEG C) feeding boiler of power plant of gas are for generating electricity；Return air and the total flow for returning to flue gas are 12000Nm3/h；
The total flow of first flue gas and the second flue gas is equivalent to 5 volume % of boiler of power plant flue gas total flow.
Quality, the flue gas generated energy, (steam+tail gas+return flue gas) generated energy for measuring clean coal, the results are shown in Table 1.
Embodiment 7
(1) by 5000Nm3(lignite, partial size are raw coal of the first flue gas (900 DEG C) of/h to 6000kg in rotary kiln
20mm) indirect heating, carry out coal convert 60min, final conversion temperature be 600 DEG C at, obtain the first flue gas, the first pyrolysis gas and
Convert coal；
(2) by 5000Nm3The second flue gas (900 DEG C) of/h carries out coal removing impurities to coal indirect heating is converted in rotary kiln
30min, final removing impurities temperature are 650 DEG C, obtain the second flue gas, the second pyrolysis gas and removing impurities coal；
(3) progress of removing impurities coal is dry and cold, obtain clean coal；
(4) it is passed through mixed-burning furnace after converging the first and second pyrolysis gas to burn, obtained hot wind is passed through waste heat boiler
Heat exchange is carried out with boiler feedwater and generates steam and tail gas, and steam (800 DEG C of temperature) is back to boiler of power plant for generating electricity, and tail gas is made
Boiler of power plant is returned for generating electricity through blower unit for return air (450 DEG C of temperature)；First and second flue gases are converged to return to cigarette
(800 DEG C) feeding boiler of power plant of gas are for generating electricity；Return air and the total flow for returning to flue gas are 12000Nm3/h；
The total flow of first flue gas and the second flue gas is equivalent to 5 volume % of boiler of power plant flue gas total flow.
Quality, the flue gas generated energy, (steam+tail gas+return flue gas) generated energy for measuring clean coal, the results are shown in Table 1.
Embodiment 8
(1) by 5000Nm3(lignite, partial size are raw coal of the first flue gas (900 DEG C) of/h to 4500kg in rotary kiln
20mm) indirect heating, carry out coal convert 45min, final conversion temperature be 640 DEG C at, obtain the first flue gas, the first pyrolysis gas and
Convert coal；
(2) by 5000Nm3The second flue gas (900 DEG C) of/h carries out coal removing impurities to coal indirect heating is converted in rotary kiln
35min, final removing impurities temperature are 750 DEG C, obtain the second flue gas, the second pyrolysis gas and removing impurities coal；
(3) progress of removing impurities coal is dry and cold, obtain clean coal；
(4) it is passed through mixed-burning furnace after converging the first and second pyrolysis gas to burn, obtained hot wind is passed through waste heat boiler
Heat exchange is carried out with boiler feedwater and generates steam and tail gas, and steam (800 DEG C of temperature) is back to boiler of power plant for generating electricity, and tail gas is made
Boiler of power plant is returned for generating electricity through blower unit for return air (450 DEG C of temperature)；First and second flue gases are converged to return to cigarette
(800 DEG C) feeding boiler of power plant of gas are for generating electricity；Return air and the total flow for returning to flue gas are 12000Nm3/h；
The total flow of first flue gas and the second flue gas is equivalent to 5 volume % of boiler of power plant flue gas total flow.
Quality, the flue gas generated energy, (steam+tail gas+return flue gas) generated energy for measuring clean coal, the results are shown in Table 1.
Embodiment 9
(1) by 5000Nm3(lignite, partial size are raw coal of the first flue gas (900 DEG C) of/h to 4500kg in rotary kiln
20mm) indirect heating, carry out coal convert 50min, final conversion temperature be 600 DEG C at, obtain the first flue gas, the first pyrolysis gas and
Convert coal；
(2) by 5000Nm3The second flue gas (900 DEG C) of/h carries out coal removing impurities to coal indirect heating is converted in rotary kiln
25min, final removing impurities temperature are 650 DEG C, obtain the second flue gas, the second pyrolysis gas and removing impurities coal；
(3) progress of removing impurities coal is dry and cold, obtain clean coal；
(4) it is passed through mixed-burning furnace after converging the first and second pyrolysis gas to burn, obtained hot wind is passed through waste heat boiler
Heat exchange is carried out with boiler feedwater and generates steam and tail gas, and steam (800 DEG C of temperature) is back to boiler of power plant for generating electricity, and tail gas is made
Boiler of power plant is returned for generating electricity through blower unit for return air (450 DEG C of temperature)；First and second flue gases are converged to return to cigarette
(800 DEG C) feeding boiler of power plant of gas are for generating electricity；Return air and the total flow for returning to flue gas are 12000Nm3/h；
The total flow of first flue gas and the second flue gas is equivalent to 5 volume % of boiler of power plant flue gas total flow.
Quality, the flue gas generated energy, (steam+tail gas+return flue gas) generated energy for measuring clean coal, the results are shown in Table 1.
Comparative example 1 (comparison US20170137731A1)
(1) by 2000Nm3The power-plant flue gas (300 DEG C) of/h and the raw coal (lignite, partial size 20mm) of 4500kg are turning round
In kiln in a counter-current configuration directly contact, carry out coal convert 45min, final conversion temperature be 200 DEG C at, obtain the first raw coke oven gas and
Convert coal；
(2) by 8000Nm3The power-plant flue gas (900 DEG C) of/h directly contacts in rotary kiln in a counter-current configuration with conversion coal,
Coal removing impurities 40min is carried out, final removing impurities temperature is 820 DEG C, obtains the second raw coke oven gas and removing impurities coal；
(3) by removing impurities coal with air carry out it is dry put out, obtain clean coal；
(4) the first and second raw coke oven gas are converged for return air (9000Nm3/ h, 700 DEG C of temperature), and returned through air inducing unit
The burner of boiler of power plant is for generating electricity.
Above-mentioned power-plant flue gas total flow is equivalent to 5 volume % of boiler of power plant flue gas total flow.
Quality, flue gas generated energy and the return air generated energy for measuring clean coal, the results are shown in Table 1.
Comparative example 2 (comparison CN92104624.3)
(1) by 2000Nm3The power-plant flue gas (being lower than 300 DEG C) and the raw coal (lignite, partial size 20mm) of 4500kg of/h exists
It is dried at 200 DEG C of drying temperature, obtains conversion coal；
(2) by 4000Nm3The power-plant flue gas (900 DEG C) and conversion coal of/h carries out pyrolysis 45min at 600 DEG C of pyrolysis temperature
Obtain semicoke, tar steam and coal gas；
(3) by 4000Nm3The power-plant flue gas (900 DEG C) and semicoke of/h is heated at 800 DEG C of removing impurities temperature, obtains coke
And high-temperature gas mixture；
(4) coke is subjected to quenching, obtains product coke；
(5) crude tar oil, coal gas and high-temperature gas mixture are converged for return air (10000Nm3/ h, 750 DEG C of temperature), and through air inducing
Unit returns to the burner of boiler of power plant for generating electricity.
The total flow of power-plant flue gas is equivalent to 5 volume % of boiler of power plant flue gas total flow.
Quality, flue gas generated energy and the return air generated energy for measuring clean coal, the results are shown in Table 2.
Comparative example 3
(1) by 10000Nm3The flue gas (900 DEG C) of/h and the raw coal (lignite, partial size 20mm) of 4500kg are in rotary kiln
In in a counter-current configuration directly contact, carry out coal heat 45min, final heating temperature be 600 DEG C, obtain raw coke oven gas and coal product；
(2) coal product is carried out dry and cold with air, obtains clean coal；
(3) by raw coke oven gas (9000Nm3/ h, 450 DEG C of temperature) as return air through blower unit return boiler of power plant burning
Device is for generating electricity.
Flue-gas flow rate is equivalent to 5 volume % of boiler of power plant flue gas total flow.
Quality, flue gas generated energy and the return air generated energy for measuring clean coal, the results are shown in Table 2.
Comparative example 4
(1) by 10000Nm3The flue gas (900 DEG C) of/h and the raw coal (lignite, partial size 20mm) of 4500kg are in rotary kiln
In in a counter-current configuration directly contact, carry out coal heat 45min, final heating temperature be 750 DEG C, obtain raw coke oven gas and coal product；
(2) coal product is carried out dry and cold with air, obtains clean coal；
(4) by raw coke oven gas (9000Nm3/ h, 450 DEG C of temperature) as return air through blower unit return boiler of power plant burning
Device is for generating electricity.
Flue-gas flow rate is equivalent to 5 volume % of boiler of power plant flue gas total flow.
Quality, flue gas generated energy and the return air generated energy for measuring clean coal, the results are shown in Table 2.
Table 1
Note:
The total flow of 1 first flue gas and the second flue gas is the volume basis for the flue gas total flow that boiler of power plant generates
Number, volume %；
Volume ratio between 2 first flue gases and the second flue gas；
3 relative to 10000Nm3First flue gas and the second flue gas total flow, the inlet amount of raw coal；
The ratio between 4 transformation times and removing impurities time；
5 tail gas and the total flow for returning to flue gas are the percent by volume of the total flow of the first flue gas and the second flue gas,
Volume %；
6 tail gas and the total flow for returning to flue gas；
The 10000Nm that 7 power plant draw3Flue gas is for the electricity that can produce that generates electricity, to mark coal calculating；
8 steam, tail gas and return flue gas are for the electricity that can produce that generates electricity, to mark coal calculating.
Table 1 (continuous 1)
Table 1 (continuous 2)
Table 2
Note:
The total flow of 1 first flue gas and the second flue gas is the volume hundred of the total flow for the flue gas that boiler of power plant generates
Score, volume %；
Volume ratio between 2 first flue gases and the second flue gas；
3 relative to 10000Nm3First flue gas and the second flue gas total flow, the inlet amount of raw coal；
The ratio between 4 transformation times and removing impurities time；
5 return air flows account for the percent by volume of the total flow of the first flue gas and the second flue gas, volume %；
The 10000Nm that 6 power plant draw3Flue gas is for the electricity that can produce that generates electricity, to mark coal calculating；
7 return air are for the electricity that can produce that generates electricity, to mark coal calculating.
Can be seen that by the result of embodiment and comparative example may be implemented simultaneously using the embodiment of method of the invention
Realize the power generation and clean coal production of power plant.
Embodiment uses method of the invention, and the quality of the clean coal of acquisition meets civilian in DB13-2081-2014 standard
The quality standard of scattered coal, and mercury content is low.And clean coal obtained in comparative example does not meet above-mentioned standard or it is clear not obtain
Clean coal, and mercury content is high.
The hot flue gases of the method according to the invention, embodiment reference boiler of power plant produce clean coal, while pyrolysis gas
The heat recycled through mixed-burning furnace and waste heat boiler switchs to steam and tail gas, all returns to power plant for generating electricity with flue gas is returned, increases
Generated energy.
The effluent gas temperature limited in embodiment 4,5 is not in most preferred range, the first and second flue gases in embodiment 6
Volume ratio not in most preferred range, raw coal inlet amount converts in embodiment 8 not in the range of most preferably in embodiment 7
Temperature, removing impurities temperature be not in the range of most preferably, and transformation time and removing impurities time is not in the range of most preferably in embodiment 9
When, though it is good not as good as the effect in embodiment 1-3 can to return to generated energy with the clean coal of quality of production qualification.
Do not have in comparative example 1-4 using method of the invention, the clean coal not only produced is unqualified, and the power generation of return air
Amount is reduced, and influences the power generation production of power plant.
It is described the prefered embodiments of the present invention in detail above in conjunction with attached drawing, still, the present invention is not limited thereto.At this
, can be with various simple variants of the technical solution of the present invention are made in the range of the technology design of invention, including each technical characteristic
It is combined with any other suitable method, these simple variants and combination equally should be considered as in disclosed in this invention
Hold, all belongs to the scope of protection of the present invention.
Claims (10)
1. a kind of method of power plants generating electricity coupling production clean coal, comprising:
(1) coal conversion is carried out with the first flue gas indirect heating raw coal of 800~1200 DEG C from boiler of power plant, the coal turns
The final conversion temperature changed is 500~640 DEG C, and transformation time is 10~60min, obtains the first flue gas, the first pyrolysis gas and turns
Change coal；
(2) the second flue gas indirect heating of 800~1200 DEG C of coal from boiler of power plant of conversion is subjected to coal removing impurities,
The final removing impurities temperature of the coal removing impurities is 650~750 DEG C, and the removing impurities time is 10~60min, obtains the second flue gas, the second heat
It vents one's spleen and removing impurities coal；
(3) the first flue gas and the second flue gas are converged to return to flue gas feeding boiler of power plant and being used to generate electricity；By the first pyrolysis gas and
Second pyrolysis gas is successively burnt and is exchanged heat after converging, and steam and tail gas are obtained；The steam and tail gas are returned into power plant's pot
Furnace is for generating electricity；
(4) removing impurities coal is carried out dry and cold obtaining clean coal.
2. according to the method described in claim 1, wherein, the temperature of first flue gas and the second flue gas is 900~
1000℃。
3. according to the method described in claim 1, wherein, the total flow of first flue gas and the second flue gas is power plant's pot
1~30 volume %, preferably 5~20 volume %, more preferably 5~10 volume % of the total flow for the flue gas that furnace generates.
4. according to the method described in claim 1, wherein, the volume ratio between first flue gas and the second flue gas is (1
~4): 1, preferably (1~2): 1.
5. according to the method described in claim 1, wherein, relative to 10000Nm3First flue gas and the second flue gas
Total flow, the inlet amount of the raw coal is 3000~6000kg, preferably 4000~5000kg.
6. according to the method described in claim 1, wherein, the ratio between the transformation time and removing impurities time are (1~2): 1.
7. according to the method described in claim 1, wherein, the temperature for returning to flue gas is 750~900 DEG C；The steam
Temperature is 750~900 DEG C；The temperature of the tail gas is 300~500 DEG C, preferably 350~450 DEG C；The return flue gas and tail
The total flow of gas is 100~130 volume % of the total flow of first flue gas and the second flue gas, preferably 100~120
Volume %, more preferably 105~120 volume %.
8. according to the method described in claim 1, wherein, the raw coal is the lignite of 1~100mm of granularity, jet coal and does not glue
At least one of coal.
9. the system of the method application of the coupling production clean coal of power plants generating electricity described in a kind of any one of claim 1-8,
Including boiler of power plant (1), raw coal removing impurities unit, mixed-burning furnace (6), waste heat boiler (7), dry and cold device (5) and blower unit (2)；
Wherein,
The raw coal removing impurities unit removes raw coal for the flue gas from boiler of power plant (1) to be carried out indirect heating to raw coal
In impurity, obtain flue gas, pyrolysis gas and removing impurities coal, and flue gas is returned into boiler of power plant (1) power generation；
Mixed-burning furnace (6) leads to for the pyrolysis gas from raw coal removing impurities unit to burn, and by the obtained hot wind that burns
Enter waste heat boiler (7), waste heat boiler (7) is used to the hot wind and boiler feedwater carrying out heat exchange to obtain steam and tail gas；
Waste heat boiler (7) is connected to boiler of power plant (1) and blower unit (2), and the steam returns to boiler of power plant (1), the tail gas
Boiler of power plant (1) is returned through blower unit (2)；
Dry and cold device (5) by dry and cold method for being cooled down to obtain clean coal removing impurities coal.
10. system according to claim 9, wherein the raw coal removing impurities unit includes reforming unit (3) and removing impurities device
(4), wherein
Reforming unit (3) is connected to boiler of power plant (1), removing impurities device (4) and mixed-burning furnace (6)；Removing impurities device (4) is connected to boiler of power plant
(1), reforming unit (3), blower unit (2) and dry and cold device (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711353265.XA CN109929572B (en) | 2017-12-15 | 2017-12-15 | Method and system for producing clean coal by power plant power generation coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711353265.XA CN109929572B (en) | 2017-12-15 | 2017-12-15 | Method and system for producing clean coal by power plant power generation coupling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109929572A true CN109929572A (en) | 2019-06-25 |
| CN109929572B CN109929572B (en) | 2021-02-26 |
Family
ID=66980548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711353265.XA Active CN109929572B (en) | 2017-12-15 | 2017-12-15 | Method and system for producing clean coal by power plant power generation coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109929572B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2732392C1 (en) * | 2019-09-20 | 2020-09-16 | Федеральное государственное бюджетное учреждение науки Объединенный институт высоких температур Российской академии наук (ОИВТ РАН) | Method for combined production of electric energy and gas fuel at thermal conversion of biomass |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030029318A1 (en) * | 2001-08-03 | 2003-02-13 | Firey Joseph Carl | Flue gas cleaner |
| CN103666507A (en) * | 2013-12-16 | 2014-03-26 | 陈晓辉 | Internally heated coal carbonization furnace, internally heated coal carbonization system and coal carbonization technical method |
| CN105555918A (en) * | 2013-05-30 | 2016-05-04 | 煤炭清理技术公司 | Treatment of coal |
| CN105838401A (en) * | 2015-01-14 | 2016-08-10 | 烟台龙源电力技术股份有限公司 | Method and system for processing pollutant resulting from coal fines pyrolysis and boiler combustion system |
| CN106479548A (en) * | 2015-08-28 | 2017-03-08 | 李宽义 | Coal base high efficiency of energy cleaning becomes more meticulous using environment-protecting clean method |
-
2017
- 2017-12-15 CN CN201711353265.XA patent/CN109929572B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030029318A1 (en) * | 2001-08-03 | 2003-02-13 | Firey Joseph Carl | Flue gas cleaner |
| CN105555918A (en) * | 2013-05-30 | 2016-05-04 | 煤炭清理技术公司 | Treatment of coal |
| CN103666507A (en) * | 2013-12-16 | 2014-03-26 | 陈晓辉 | Internally heated coal carbonization furnace, internally heated coal carbonization system and coal carbonization technical method |
| CN105838401A (en) * | 2015-01-14 | 2016-08-10 | 烟台龙源电力技术股份有限公司 | Method and system for processing pollutant resulting from coal fines pyrolysis and boiler combustion system |
| CN106479548A (en) * | 2015-08-28 | 2017-03-08 | 李宽义 | Coal base high efficiency of energy cleaning becomes more meticulous using environment-protecting clean method |
Non-Patent Citations (1)
| Title |
|---|
| 李扬等: "煤热解气化过程中汞的形态转化和释放规律", 《工程热物理学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2732392C1 (en) * | 2019-09-20 | 2020-09-16 | Федеральное государственное бюджетное учреждение науки Объединенный институт высоких температур Российской академии наук (ОИВТ РАН) | Method for combined production of electric energy and gas fuel at thermal conversion of biomass |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109929572B (en) | 2021-02-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206637608U (en) | A kind of efficient oxygen-enriched combustion boiler tail flue gas energy utilization and processing system | |
| CN105214478A (en) | The integral process of a kind of coke oven flue exhuast gas desulfurization denitration and waste heat recovery | |
| CN109384200A (en) | Processing coke oven gas desulfurization produces the technique and device of low bright sulfur sulphur and secondary salt waste liquid | |
| CN102200275A (en) | Combustion device for dewatering upgradation of lignite and reduction of nitrogen oxide emission and method thereof | |
| CN102367169A (en) | Method for preparation of sulfuric acid and combined production of fine flour iron through calcination of coal-derived pyrite in presence of oxygen-rich air | |
| CN105823074A (en) | Oxygen-enriched and energy-saving combustion system capable of achieving zero emission of nitrogen oxides | |
| CN110260352A (en) | The electric power station system and method that a kind of low NOx combustion is coupled with white cigarette abatement | |
| CN109945211A (en) | A kind of incineration treatment method and system of semicoke pyrolysis off-gas waste liquid | |
| CN103693643A (en) | Bamboo-based activated carbon for flue gas desulfurization | |
| CN103939158B (en) | A kind of low-order coal purification power generation system | |
| CN109929572A (en) | The method and system of power plants generating electricity coupling production clean coal | |
| CN211204094U (en) | Utilize air and condensate water to eliminate power station waste heat utilization system of white cigarette in coordination | |
| CN205710623U (en) | A kind of system realizing rubbish charcoal resource | |
| CN107165688A (en) | The device and method that a kind of utilization combustion gas and Steam Combined generate electricity | |
| CN209507588U (en) | Processing coke oven gas desulfurization produces the device of low bright sulfur sulphur and secondary salt waste liquid | |
| CN109929571A (en) | The method and system of power plants generating electricity coupling production clean coal | |
| CN109929640A (en) | The method and system of power plants generating electricity coupling production clean coal | |
| CN207756595U (en) | A kind of electricity generation system of debirs clean utilization | |
| CN204063013U (en) | A kind of CFBB with TRT | |
| CN103822439B (en) | One utilizes surplus heat of power plant to carry out pre-dried system and method to brown coal | |
| CN109929570A (en) | The method and system of power plants generating electricity coupling production clean coal | |
| CN109929574A (en) | The system and method for power plant's coupling production clean coal | |
| CN109724070A (en) | A kind of supercharged oxygen-enriched coal burning system and method | |
| CN109929569A (en) | The method and system of power plants generating electricity coupling production clean coal | |
| CN109929575A (en) | The method and system of power plants generating electricity coupling production clean coal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 100011 Beijing Dongcheng District, West Binhe Road, No. 22 Patentee after: CHINA ENERGY INVESTMENT Corp.,Ltd. Patentee after: Beijing low carbon clean energy research institute Address before: 100011 Shenhua building, 22 West Binhe Road, Dongcheng District, Beijing Patentee before: SHENHUA GROUP Corp.,Ltd. Patentee before: Beijing low carbon clean energy research institute |
|
| CP03 | Change of name, title or address |