Raw materials: rice husk, straw, herb, film, coconut shell
Advantages: fixed carbon, reproducibile, high volatile, low SO2 emmission, zero CO2 emmision
Raw materials: rice husk, straw, herb, film, coconut shell
Main energy: biomass black carbon, biomass wood vinegar
Biomass gasification power plant: capacity from 200kw to 3000kw, 1kg woody biomass generate 1kw electricity, 1kw woody biomass produce 2-3m3/h syngas, syngas heat value 1100-1500kcal/m3.
Applicable raw materials: a wide range of raw materials, such as straw, wood chips, rice husk, palm shell, bagasse and other agricultural and forestry wastes
particle size: 30-50mm, water content: less than 20%
|Comparison of Grate Furnace Incineration Treatment Technology and Pyrolysis Gasification Treatment Technology|
|Compare Content||Grate Furnace||Pyrolysis Gasifier|
|Incineration Mechanism||The Garbage Is Directly Burned, The Combustion Temperature Is 800~1000°C, The Incineration Mechanism Is General||Using Two-Stage Treatment, The Garbage Is Now Pyrolyzed And Gasified, And Then Small-Molecule Combustible Gas Is Burned. The Combustion Temperature Is 850~1100℃. The Incineration Mechanism Is Advanced.|
|Furnace Structure And Grate Material||The Structure Is Complex And The Shape Is Large; The Grate Works Under High Temperature, And The Requirements For The Grate Material Are High||The Structure Is Relatively Simple And Compact; The Grate Works In A Low Temperature State, And The Requirements For The Grate Material Are Low|
|Types Of Garbage||Dispose Of Domestic Waste||It Can Process Domestic Waste, Industrial Waste, And Hazardous Waste With High Calorific Value (Including Medical Waste)|
|Area (300t/D)||40-50 Acres Higher||30-40 Acres Lower|
|Operating Cost Fly Ash Emissions||Fly Ash Discharges A Lot, Accounting For About 5% Of The Total Garbage||Fly Ash Emission Is Low, Accounting For About 1% Of The Total Garbage, Which Is Environmentally Friendly|
|Acidic Substance And Dust Emission||The Original Value Of Acidic Substances Such As So2 And Nox Is Relatively High; The Dust Emission Concentration Is 6000~8000mg/Nm3||The Original Value Of Acidic Substances Such As So2 And Nox Is Relatively Low: The Dust Emission Concentration Is ≤3000mg/Nm3|
|Plant Environment||It Is Difficult To Control The Environment In The Plant Area. The Incinerator Workshop Has A Certain Amount Of Bottom Ash And Leachate, Noise, And Odor Pollution.||The Factory Environment Is Well Controlled, And The Bottom Ash, Noise, And Odor Pollution In The Workshop Are Low|
15/6/2018 · Compared to downdraft fixed bed gasifiers, updraft fixed bed gasifiers produce syngas with a higher quality and lower outlet temperature . Moreover, there are some efficient tar purification devices including oil scrubber and char filter, which are installed after the gasifier so as to assure a low enough tar concentration in the syngas before entering the gas engine  .
Benin Fixed Bed Gasifier-Haiqi Biomass Gasification Power System 200Kw Rice Huck Gasifiergasification - go4worldbusiness.comBoth downdraft fixed bed gasifier and fluidizedbed gasifier is available. If customers have special requirements, uniqu Tel: +8615637015613
There are three types of fixed bed gasifiers, as shown in Fig. 16.5: updraft (counter-current), downdraft (co-current), and cross draft gasifier. In case of the updraft gasifier, the fuel is supplied at the top and the air at the bottom so that fuel moves against the air flow, while in the case of the downdraft, air is introduced above the oxidation zone and the product gas is removed from the
30/9/2016 · Rice husk, an abundant biomass in Viet Nam, was used to partially replace fossil fuels by gasification process. The study was conducted on the pilot plant fixed bed up-draft gasifier with two kind of gasification agents, pure air and air-steam mixture. Mathematical modeling and computer simulations were also used to describe and optimize the gasification processes. Mathematical modeling was
27/9/2007 · The fixed bed model is constructed using Aspen Plus, process modeling software, coupled with a FORTRAN user kinetic subroutine. Current updraft gasification models created in Aspen Plus have limited predictive capabilities and must be "tuned" to reflect a generalized gas composition as specified in literature or by the gasifier manufacturer
Rice husk (RH) waste, an abundant agricultural by-product, was gasified in a top-lit updraft Belonio rice husk gasifier with a biochar yield of 29.0% ± 1.9%. The equivalence ratio (ER) for optimum biochar production was identified and its effect on biochar properties such as pH, volatile matter (VM), fixed carbon (FC) and ash content (AC
22/9/2021 · This paper treats exergy analysis of rice husk at various loading rates of 1 kg, 1.5 kg and 2 kg of feedstock, using a batch type, fixed-bed gasifier, equipped with a gas filtering system and between the operating temperatures of 690 K and 1100 K, operated for the whole year.
Updraft Fixedbed Gasifier Nepal Applicable raw materials: a wide range of raw materials, such as straw, wood chips, rice husk, palm shell, bagasse and other agricultural and forestry wastes particle size: 30-50mm, water content: less than 20%. Views ...
For example, the current investment rate of a small-scale rice husk gasifier in Cambodia (Fig. 2a) can reach up to USD 400 per kW of power. The use of water for gas cleaning (Fig. 2b), which is about 2 liters per kWh generated, is still a major pollution source. Furthermore, tar load that form during the pyrolysis stage of gasification of biomass feedstock is known to be highly carcinogenic
Updraft Fixed Bed Biomass Gasifier Chile Applicable raw materials: a wide range of raw materials, such as straw, wood chips, rice husk, palm shell, bagasse and other agricultural and forestry wastes particle size: 30-50mm, water content: less than 20 ...
1/4/2007 · The fixed bed gasification systems are classified as updraft, Imbert downdraft, throatless downdraft, crossdraft and two stage gasifiers. Updraft gasifiers are suitable for gasification of biomass containing high ash (up to 15 %) and high moisture content (up to 50 %) and generate producer gas having high tar content (50–100 g/Nm3). The high temperature (830 oC) air gasification of biomass
1/10/2018 · Fixed bed gasifiers correspond to the oldest gasifier category, and are usually operated below biomass and bed melting temperatures to prevent slag formation , , . Fixed bed reactors are found in downdraft (co-current), updraft (counter-current) , , , , and cross-draft configurations.
Updraft Gasifier an updraft gasifier has clearly defined zones for partial combustion, reduction, and pyrolysis. air is introduced at the bottom and act as countercur-rent to fuel flow. the gas is drawn at higher location. the updraft gasifier achieves the highest efficiency as the hot gas passes through fuel bed and Get Price >>
4. Worldwide Installations of fixed bed gasifiers Fixed bed updraft gasifier has been installed at a CHP power plant in Kokemaki. Biomass residues and energy crops are used as fuels. The feedstock is dried to about 20% moisture by using low 15 temperature waste heat from the plant and fed at the top of the gasifier. The
Biomass Gasification and its Applications at Home Steam gasification of biomass in an updraft fixed bed type gasifier. PhD thesis. Stockholm, Sweden: Royal Institute of Technology