CN110205162A - A kind of biomass synthesis gas production method and its device - Google Patents
A kind of biomass synthesis gas production method and its device Download PDFInfo
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- CN110205162A CN110205162A CN201910381117.1A CN201910381117A CN110205162A CN 110205162 A CN110205162 A CN 110205162A CN 201910381117 A CN201910381117 A CN 201910381117A CN 110205162 A CN110205162 A CN 110205162A
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- biomass
- synthesis gas
- fire grate
- biomass synthesis
- hydraulic machinery
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/0916—Biomass
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0956—Air or oxygen enriched air
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0959—Oxygen
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0969—Carbon dioxide
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0973—Water
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1603—Integration of gasification processes with another plant or parts within the plant with gas treatment
Abstract
The present invention provides a kind of biomass synthesis gas production method and its device, which comprises makes gasification of biomass using hydraulic machinery fire grate gasification furnace, to generate biomass synthesis gas, and passes through hydraulic machinery movement rationally control reaction process；It exchanges heat to the biomass synthesis gas, to utilize the sensible heat of the biomass synthesis gas；Trap the tar in the biomass synthesis gas；The tar is recycled in the hydraulic machinery fire grate gasification furnace and is burnt.The present invention using hydraulic machinery fire grate gasification furnace by making gasification of biomass generate biomass synthesis gas, and the biomass synthesis gas is dried biomass and gasifying agent heating, traps tar in the biomass synthesis gas and for recycle burning by exchanging heat, it takes full advantage of the sensible heat of the biomass synthesis gas, reduce the tar content in the biomass synthesis gas, reduce the energy consumption in biomass gasification process, improves economic benefit.
Description
Technical field
The present invention relates to Biomass Energy Utilization fields, in particular to biomass synthesis gas production method and its dress
It sets.
Background technique
Biomass energy is increasingly taken seriously as a kind of renewable resource, and according to data, China every year can be with for root
The biomass energy of development and utilization is about 700,000,000 tons, and it is about 200,000,000 tons that the energy that can be provided, which converts into standard coal, if can be complete
Portion's reasonable utilization, it is possible to reduce the consumption of about 10% traditional fossil energy.However, at present China's Biomass Energy Utilization rate compared with
It is low, and substantially still using the application mode directly burnt, for today of electric energy production surplus, which is no longer suitable
With it is biomass synthesis gas that better Biomass Energy Utilization mode, which is by gasification of biomass, can be not only used for the original of chemical industry synthesis
Material, and conveying can be facilitated as the energy source of heating.
Gasification of biomass is an effective way of Biomass Energy Utilization, and the air mixture of gasification of biomass output can
For heat supply, power generation, F- T synthesis, it can also be used to which fermentative production of ethanol is a kind of very promising technology.Existing life
In gasification substance method, the sensible heat of biomass synthesis gas generally can not be utilized directly, directlyed adopt fountain cooling, will be caused huge
Big energy waste；Also, the processing problem of tar is also one of the great difficult problem faced in existing gasification.
Therefore, it is necessary to a kind of new biomass synthesis gas production method and its device be proposed, to solve the above problems.
Summary of the invention
A series of concept of reduced forms is introduced in Summary, this will in the detailed description section into
One step is described in detail.Summary of the invention is not meant to attempt to limit technical solution claimed
Key feature and essential features do not mean that the protection scope for attempting to determine technical solution claimed more.
The present invention provides a kind of biomass synthesis gas production method, comprising the following steps:
Make gasification of biomass using hydraulic machinery fire grate gasification furnace, to generate biomass synthesis gas, and passes through hydraulic machinery
Movement rationally controls reaction process；
It exchanges heat to the biomass synthesis gas, to utilize the sensible heat of the biomass synthesis gas；
Trap the tar in the biomass synthesis gas；
The tar is recycled in the hydraulic machinery fire grate gasification furnace and is burnt.
Further, make the gasification of biomass using hydraulic machinery fire grate gasification furnace the following steps are included:
The biomass is dried, be pyrolyzed and gasified；
Being passed through gasifying agent makes the biomass full combustion release energy；
Being passed through gasifying agent makes the biomass after-flame.
Further, the gasifying agent includes air, O2、CO2And/or H2O and their combination.
Further, the temperature of the biomass synthesis gas for generating gasification of biomass using hydraulic machinery fire grate gasification furnace
Higher than 850 DEG C.
Further, the sensible heat of the biomass synthesis gas is for heating the biomass and/or gasifying agent.
Further, the tar in the biomass synthesis gas is trapped using lye.
The present invention provides a kind of biomass synthesis gas process units, comprising:
Hydraulic machinery fire grate gasification furnace, is configured to make gasification of biomass, to generate biomass synthesis gas, and passes through hydraulic press
Tool movement rationally controls reaction process；
Heat exchanger is configured to exchange heat to the biomass synthesis gas, to utilize the sensible heat of the biomass synthesis gas；
Flue gas purification device is configured to trap the tar in the biomass synthesis gas；
Circulating line is configured to for the tar being recycled in the hydraulic machinery fire grate gasification furnace and burn.
Further, the hydraulic machinery fire grate gasification furnace includes the first cabin and the second cabin, the first cabin configuration
For drying, pyrolysis and the gasification for realizing biomass；Second cabin is arranged for carrying out the completely burned and after-flame of biomass, institute
The lower part for stating the second cabin is provided with air inlet.
Further, the hydraulic machinery fire grate gasification furnace includes fire grate and fluid pressure drive device, and the fire grate is divided into drying
Section, burning zone and after-flame section, wherein the dryer section is located at the lower part in first cabin, the burning zone and the after-flame
Section is located at the middle part in second cabin, and the fluid pressure drive device is located at fire grate two sides.
Further, the heat exchanger is configured to heating biological matter and/or gasifying agent.
Further, the tar is recycled to second cabin of the hydraulic machinery fire grate gasification furnace by the circulating line
In room.
The present invention using hydraulic machinery fire grate gasification furnace by making gasification of biomass generate biomass synthesis gas, and to described
Biomass synthesis gas is dried biomass and gasifying agent heating, traps tar in the biomass synthesis gas by exchanging heat
And it is used for recycle burning, it takes full advantage of the sensible heat of the biomass synthesis gas, reduce in the biomass synthesis gas
Tar content reduces the energy consumption in biomass gasification process, improves economic benefit.
Detailed description of the invention
The embodiment of the present invention is described in more detail in conjunction with the accompanying drawings, the above and other purposes of the present invention,
Feature and advantage will be apparent.Attached drawing is used to provide to further understand the embodiment of the present invention, and constitutes explanation
A part of book, is used to explain the present invention together with the embodiment of the present invention, is not construed as limiting the invention.In the accompanying drawings,
Identical reference label typically represents same parts or step.
In attached drawing:
Fig. 1 is a kind of flow chart of biomass synthesis gas production method according to an exemplary embodiment of the present invention.
Fig. 2 is a kind of schematic diagram of biomass synthesis gas process units according to an exemplary embodiment of the present invention.
Appended drawing reference
1, hydraulic machinery fire grate gasification furnace 11, fire grate
12, the first cabin 13, the second cabin
14, air inlet 2, heat exchanger
3, flue gas purification device
Specific embodiment
In the following description, a large amount of concrete details are given so as to provide a more thorough understanding of the present invention.So
And it is obvious to the skilled person that the present invention may not need one or more of these details and be able to
Implement.In other examples, in order to avoid confusion with the present invention, for some technical characteristics well known in the art not into
Row description.
It should be understood that the present invention can be implemented in different forms, and should not be construed as being limited to propose here
Embodiment.On the contrary, provide these embodiments will make it is open thoroughly and completely, and will fully convey the scope of the invention to
Those skilled in the art.In the accompanying drawings, for clarity, the size and relative size in the area Ceng He may be exaggerated.From beginning to end
Same reference numerals indicate identical element.
Spatial relation term for example " ... under ", " ... below ", " below ", " ... under ", " ... it
On ", " above " etc., herein can for convenience description and being used describe an elements or features shown in figure with
The relationship of other elements or features.It should be understood that spatial relation term intention further includes making other than orientation shown in figure
With the different orientation with the device in operation.
The purpose of term as used herein is only that description specific embodiment and not as limitation of the invention.Make herein
Used time, " one " of singular, "one" and " described/should " be also intended to include plural form, unless the context clearly indicates separately
Outer mode.It is also to be understood that term " composition " and/or " comprising ", when being used in this specification, determines the feature, whole
The presence of number, step, operations, elements, and/or components, but be not excluded for one or more other features, integer, step, operation,
The presence or addition of component, assembly unit and/or group.Herein in use, term "and/or" includes any of related listed item and institute
There is combination.
In order to thoroughly understand the present invention, detailed step and detailed structure will be proposed in following description, so as to
Illustrate technical solution proposed by the present invention.Presently preferred embodiments of the present invention is described in detail as follows, however in addition to these detailed descriptions
Outside, the present invention can also have other embodiments.
For the sensible heat of biomass synthesis gas in the prior art can not directly utilize and biomass synthesis gas in tar contain
Higher problem is measured, the present invention provides a kind of biomass synthesis gas production methods, as shown in Figure 1, comprising the following steps:
S101: making gasification of biomass using hydraulic machinery fire grate gasification furnace, to generate biomass synthesis gas, and by hydraulic
Mechanical movement rationally controls reaction process；
S102: exchanging heat to the biomass synthesis gas, to utilize the sensible heat of the biomass synthesis gas；
S103: the tar in the biomass synthesis gas is trapped；
S104: the tar is recycled in the hydraulic machinery fire grate gasification furnace and is burnt.
Firstly, executing step S101: making gasification of biomass using hydraulic machinery fire grate gasification furnace, to generate biomass synthesis
Gas.
Wherein, make the gasification of biomass using hydraulic machinery fire grate gasification furnace the following steps are included:
S1011: the biomass is dried, be pyrolyzed and gasified；
S1012: being passed through gasifying agent makes the biomass full combustion release energy；
S1013: being passed through gasifying agent makes the biomass after-flame.
Illustratively, as shown in Fig. 2, hydraulic machinery fire grate gasification furnace 1 include feed inlet positioned at described at the top of it and
The fire grate 11 of slag-drip opening positioned at its bottom, hydraulic machinery fire grate gasification furnace 1 is set along the feed inlet to slag-drip opening inclination
It sets, the fire grate is divided into dryer section, burning zone and after-flame section from high to low.
Illustratively, the fire grate 11 includes several fire grate units, and each fire grate unit includes driving device, mobile dress
It sets and turning device.The fluid pressure drive device is located at fire grate two sides, moves rationally control reaction process by hydraulic machinery.Tool
Body, using hydraulic-driven so that the realization of each fire grate unit is stirred and/or slided, so that biomass is burnt on one side, an edge furnace
The extending direction movement of row 11, goes on smoothly in order to control gasification.
Illustratively, hydraulic machinery fire grate gasification furnace further includes the first cabin 12 and the second cabin 13, first cabin
12 are arranged for carrying out the drying, pyrolysis and gasification of biomass, and second cabin 13 is arranged for carrying out the completely burned of biomass
And after-flame, further, the lower part in second cabin 13 is provided with air inlet 14.Referring to Fig. 2, the drying section of the fire grate 11
In the lower section in first cabin 12；The burning zone and after-flame section of the fire grate 11 are located at the middle part in second cabin 4.
In one embodiment, biomass energy, including but not limited to feces of livestock and poultry, municipal domestic organic refuse, farming
Object stalk, forestry Timber residuals, processing of farm products residue etc. enter hydraulic machinery fire grate gasification furnace 1 through feed inlet, fall in
On the fire grate 11, slag-drip opening under the action of self gravity and fire grate move oliquely downward is mobile, successively in the first cabin
12 fire grate dryer section is dried biomass, is pyrolyzed, gasifies, and the fire grate burning zone in the second cabin 13, which is passed through gasifying agent, to be made
Biomass full combustion releases energy, and the fire grate after-flame section in the second cabin 13, which is passed through gasifying agent, makes biomass complete after-flame mistake
Journey is finally discharged from slag-drip opening.
Illustratively, the gasifying agent includes but is not limited to air, O2、CO2And/or H2O and their combination.At one
In embodiment, the corresponding gasifying agent of selection can according to need, if burning zone can use pure oxygen, to obtain needed for gasification
The high temperature wanted；After-flame section can choose vapor and pure oxygen added to induce water gas reaction, to promote the after-flame of coke.It simultaneously can be with
Select H in corresponding gasifying agent adjustment synthesis gas2With the ratio of CO.
As an example, by being passed through O to the fire grate burning zone in the second cabin 132It can promote biomass full combustion
And release energy, so that the temperature in the first cabin 12 is maintained at high temperature required for biomass gasification process (about 900 DEG C), it is above-mentioned
The temperature for the biomass synthesis gas that process generates is higher than 850 DEG C；By being passed through H to the fire grate after-flame section in the second cabin 132O can be with
Remaining fixed carbon in biomass is set to pass through water gas reaction generation CO and H2, while excessive H2O can be such that the first cabin 12 protects
The atmosphere for holding high moisture content, is conducive to coke tar cracking in this way, to reduce the tar content in biomass synthesis gas.
Next, executing step S102: exchanging heat to the biomass synthesis gas, to utilize the biomass synthesis gas
Sensible heat.
Illustratively, as shown in Fig. 2, biomass of the temperature higher than 850 DEG C that above-mentioned biomass gasification process generates synthesizes
The sensible heat utilization of gas include by 2 heat exchange biomass material of heat exchanger with the moisture that reduces the biomass material and/or
Heating and gasifying agent is to increase the temperature of the gasifying agent.
In one embodiment, the high-temperature biomass synthesis gas of generation enters the stream in first group of heat exchanger, with heat exchanger
Body (such as water) exchanges heat so that the temperature of fluid increases, the biomass material of the raised fluid heating aqueous rate about 35% of temperature,
So that the moisture content of biomass material is reduced to about 10%, the fluid that temperature reduces is back to heat exchanger again and synthesizes with biomass
A circulation is completed in gas heat exchange；Next, the above-mentioned biomass synthesis gas by first group of heat exchanger enters second group of heat exchange
Fluid (such as water) in device, with heat exchanger exchanges heat so that the temperature of fluid increases, and the raised fluid of temperature is by gasifying agent from room
Warm (such as 25 DEG C or so) are heated to about 200 DEG C.
Exchanged heat by the high-temperature biomass synthesis gas for generating gasification substance process, for heating biological matter raw material with
Moisture and/or the heating and gasifying agent of the biomass material are reduced to increase the temperature of the gasifying agent, biomass conjunction is utilized
At the sensible heat of gas, reduces the energy consumption in biomass gasification process, improve economic benefit.In addition, passing through heating biological
Matter raw material and gasifying agent avoid the lower gasifying agent of temperature being passed through the drop of 12 temperature of the first cabin caused by the second cabin 13
The problems such as low, gasification efficiency reduces, tar content increases in biomass synthesis gas, better ensures that hydraulic machinery fire grate gas
Change the progress of gasification in furnace 1.
Next, executing step S103: trapping the tar in the biomass synthesis gas.
Illustratively, the biomass synthesis gas is trapped using lye as shown in Fig. 2, being arranged in flue gas purification device 3
In tar.
Illustratively, the flue gas purification device 3 include but is not limited to dry-process deacidification denitration device, wet process deacidification equipment,
Deduster etc..The flue gas purification device 3 can also include the equipment dedicated for trapping tar.In one embodiment, sharp
Deacidifying flue gas had not only been realized with lye but also realized tar trapping and concentration.
By carrying out tar trapping, reduce the tar content in the biomass synthesis gas ultimately generated, the tar of trapping
It has wide range of applications, including but not limited to as heavy chemicals such as fuel, production plastics etc..
Next, executing step S104: the tar being recycled in the hydraulic machinery fire grate gasification furnace and is burnt.
Illustratively, as shown in Fig. 2, the tar that flue gas purification device 3 traps is recycled to hydraulic machinery fire grate gasification furnace 1
It burns in second cabin 13.
By the recycling processing of tar, fire tar and biomass material in hydraulic machinery fire grate gasification furnace 1 together
It burns, avoids tar bring secondary pollution, and the chemical energy of tar is made full use of to improve the combustion in hydraulic machinery fire grate gasification furnace 1
Temperature is burnt, the full combustion and after-flame of biomass is advantageously implemented, improves the efficiency of biomass gasification process, reduce biology
Tar content in matter synthesis gas.
The present invention also provides a kind of biomass synthesis gas process units, as shown in Figure 2, comprising:
Hydraulic machinery fire grate gasification furnace 1, is configured to make gasification of biomass, to generate biomass synthesis gas, and by hydraulic
Mechanical movement rationally controls reaction process；
Heat exchanger 2 is configured to exchange heat to the biomass synthesis gas, with heating biological matter raw material and/or gasifying agent；
Flue gas purification device 3 is configured to trap the tar in the biomass synthesis gas；
Circulating line is configured to for the tar being recycled in the hydraulic machinery fire grate gasification furnace and burn.
Illustratively, hydraulic machinery fire grate gasification furnace 1 includes feed inlet positioned at described at the top of it and is located at its bottom
Slag-drip opening, the fire grate 11 of hydraulic machinery fire grate gasification furnace 1 is obliquely installed along the feed inlet to the slag-drip opening, the fire grate
It is divided into dryer section, burning zone and after-flame section from high to low.
Illustratively, the fire grate 11 includes several fire grate units, and each fire grate unit includes driving device, mobile dress
It sets and turning device.The fluid pressure drive device is located at fire grate two sides, moves rationally control reaction process by hydraulic machinery.Tool
Body, using hydraulic-driven so that the realization of each fire grate unit is stirred and/or slided, so that biomass is burnt on one side, an edge furnace
The extending direction movement of row 11, goes on smoothly in order to control gasification.
Further, it is possible to by adjusting the size adjusting production scale of fire grate.In one embodiment, when being advised
When modelling produces, it need to only increase the quantity of fire grate unit along the extending direction of fire grate 11, can expand the scale of production.
Illustratively, hydraulic machinery fire grate gasification furnace 1 further includes the first cabin 12 and the second cabin 13, first cabin
12 are arranged for carrying out the drying, pyrolysis and gasification of biomass, and second cabin 13 is arranged for carrying out the completely burned of biomass
And after-flame.Referring to Fig. 2, the dryer section of the fire grate 11 is located at the lower section in first cabin 12；The burning zone of the fire grate 11
It is located at the middle part in second cabin 4 with after-flame section.
Illustratively, the temperature range in first cabin 12 includes 850 DEG C -900 DEG C, maintains the temperature in first cabin
Thermal energy needed for degree is provided by second cabin.
Further, material inlet is located at 11 top certain altitude of fire grate, is fed using material casting form, and the first cabin 12 with
Second cabin, 13 coupling part is designed using necking, in order to which the first cabin 12 carries out the accumulation of biomass material.
Further, the height in the first cabin 12, which can according to need, is configured.In first cabin 12 water vapour content compared with
Height, temperature is also higher, by increasing the height in the first cabin 12 according to actual needs, in the atmosphere of high temperature and high moisture content
In, be conducive to coke tar cracking, to reduce the content of tar in final biomass synthesis gas.
Further, the lower part in second cabin 13 is provided with air inlet 14, and the air inlet 14 is for being passed through gasifying agent.
The gasifying agent includes but is not limited to air, O2、CO2And/or H2O and their combination.In one embodiment, the second cabin
There are two air inlets for 13 lower part setting, are located at the lower part of burning zone and after-flame section, the front end of the air inlet 14 is all provided with
It is equipped with valve, to control the opening and closing of air inlet 14.
Illustratively, heat exchanger is to realize heat between material between a kind of fluid at two or more different temperatures
The energy-saving equipment of transmitting is that heat is made to pass to the lower fluid of temperature by the higher fluid of temperature, fluid temperature (F.T.) is made to reach stream
Journey set quota to meet the needs of process conditions, while being also the capital equipment for improving energy utilization rate.
In one embodiment, including the two groups of heat exchangers set gradually, wherein first group of heat exchanger is configured to high temperature life
The heat exchange of substance synthesis gas and biomass material, so that the moisture content of biomass material is reduced to about 10% by about 35%；The
Two groups of heat exchangers are arranged for carrying out the heat exchange of high-temperature biomass synthesis gas and gasifying agent, so that gasifying agent is from room temperature (such as 25
DEG C or so) 200 DEG C are heated to about, improve the rate of the gasification of gasification furnace endogenous substance, burning.
Exchanged heat by the high-temperature biomass synthesis gas for generating gasification substance process, for heating biological matter raw material with
Moisture and/or the heating and gasifying agent of the biomass material are reduced to increase the temperature of the gasifying agent, biomass conjunction is utilized
At the sensible heat of gas, reduces the energy consumption in biomass gasification process, improve economic benefit.In addition, passing through heating biological
Matter raw material and gasifying agent avoid the lower gasifying agent of temperature being passed through the drop of 12 temperature of the first cabin caused by the second cabin 13
The problems such as low, gasification efficiency reduces, tar content increases in biomass synthesis gas, better ensures that hydraulic machinery fire grate gas
Change the progress of gasification in furnace 1.
Illustratively, the flue gas purification device 3 include but is not limited to dry-process deacidification denitration device, wet process deacidification equipment,
Deduster etc..The flue gas purification device 3 can also include the equipment dedicated for trapping tar.In one embodiment, sharp
Deacidifying flue gas had not only been realized with lye but also realized tar trapping and concentration.
Further, it is provided with circulating line between flue gas purification device 3 and hydraulic machinery fire grate gasification furnace 1, be configured to
The tar is recycled in second cabin 13 of the hydraulic machinery fire grate gasification furnace 1.
In one embodiment, one end of circulating line is connected with flue gas purification device 3, and the other end is located at hydraulic machinery furnace
The top for arranging the fire grate burning zone of gasification furnace 1, so that tar and biomass material fire in hydraulic machinery fire grate gasification furnace 1 together
It burns, avoids tar bring secondary pollution, and the chemical energy of tar is made full use of to improve the combustion in hydraulic machinery fire grate gasification furnace 1
Temperature is burnt, the full combustion and after-flame of biomass is advantageously implemented, improves the efficiency of biomass gasification process, reduce biology
Tar content in matter synthesis gas.
The present invention using hydraulic machinery fire grate gasification furnace by making gasification of biomass generate biomass synthesis gas, and to described
Biomass synthesis gas is dried biomass and gasifying agent heating, traps tar in the biomass synthesis gas by exchanging heat
And it is used for recycle burning, it takes full advantage of the sensible heat of the biomass synthesis gas, reduce in the biomass synthesis gas
Tar content reduces the energy consumption in biomass gasification process, improves economic benefit.
The present invention has been explained by the above embodiments, but it is to be understood that, above-described embodiment is only intended to
The purpose of citing and explanation, is not intended to limit the invention to the scope of the described embodiments.Furthermore those skilled in the art
It is understood that the present invention is not limited to the above embodiments, introduction according to the present invention can also be made more kinds of member
Variants and modifications, all fall within the scope of the claimed invention for these variants and modifications.Protection scope of the present invention by
The appended claims and its equivalent scope are defined.
Claims (11)
1. a kind of biomass synthesis gas production method, which comprises the following steps:
Make gasification of biomass using hydraulic machinery fire grate gasification furnace, to generate biomass synthesis gas, and is moved by hydraulic machinery
Rationally control reaction process；
It exchanges heat to the biomass synthesis gas, to utilize the sensible heat of the biomass synthesis gas；
Trap the tar in the biomass synthesis gas；
The tar is recycled in the hydraulic machinery fire grate gasification furnace and is burnt.
2. biomass synthesis gas production method as described in claim 1, which is characterized in that utilize hydraulic machinery fire grate gasification furnace
Make the gasification of biomass the following steps are included:
The biomass is dried, be pyrolyzed and gasified；
Being passed through gasifying agent makes the biomass full combustion release energy；
Being passed through gasifying agent makes the biomass after-flame.
3. biomass synthesis gas production method as claimed in claim 2, which is characterized in that the gasifying agent includes air, O2、
CO2And/or H2O and their combination.
4. biomass synthesis gas production method as described in claim 1, which is characterized in that described to utilize hydraulic machinery fire grate gas
The temperature for changing the biomass synthesis gas that furnace generates gasification of biomass is higher than 850 DEG C.
5. biomass synthesis gas production method as claimed in claim 2, which is characterized in that the sensible heat of the biomass synthesis gas
For heating the biomass and/or gasifying agent.
6. biomass synthesis gas production method as described in claim 1, which is characterized in that trap the biomass using lye
Tar in synthesis gas.
7. a kind of biomass synthesis gas process units characterized by comprising
Hydraulic machinery fire grate gasification furnace, is configured to make gasification of biomass, to generate biomass synthesis gas, and is transported by hydraulic machinery
Dynamic circuit connector reason control reaction process；
Heat exchanger is configured to exchange heat to the biomass synthesis gas, to utilize the sensible heat of the biomass synthesis gas；
Flue gas purification device is configured to trap the tar in the biomass synthesis gas；
Circulating line is configured to for the tar being recycled in the hydraulic machinery fire grate gasification furnace and burn.
8. biomass synthesis gas process units as claimed in claim 7, which is characterized in that the hydraulic machinery fire grate gasification furnace
Including the first cabin and the second cabin, first cabin is arranged for carrying out the drying, pyrolysis and gasification of biomass；Described second
Cabin is arranged for carrying out the completely burned and after-flame of biomass, and the lower part in second cabin is provided with air inlet.
9. biomass synthesis gas process units as claimed in claim 8, which is characterized in that the hydraulic machinery fire grate gasification furnace
Including fire grate and fluid pressure drive device, the fire grate is divided into dryer section, burning zone and after-flame section, wherein the dryer section is located at
The lower part in first cabin, the burning zone and the after-flame section are located at the middle part in second cabin, the hydraulic-driven
Device is located at fire grate two sides.
10. biomass synthesis gas process units as claimed in claim 8, which is characterized in that the heat exchanger is configured to heat
Biomass and/or gasifying agent.
11. biomass synthesis gas process units as claimed in claim 9, which is characterized in that the circulating line is by the coke
Oil is recycled in second cabin of the hydraulic machinery fire grate gasification furnace.
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