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|
1/1/2010 · The modified updraft fixed bed gasifier employs an embedded combustor inside the gasifier to fully combust the synthetic gas generated by the gasifier. The flue gas produced by the synthetic gas combustion inside the combustion tube is piped directly to the heater head of the Stirling engine. The engine will then extract and convert the heat contained in the flue gas into electricity
The gasifier applies the principles of updraft producer gas flows, whereby the stove utilizes rice husk as it useable fuel. The modified gasifier stove was experimentally tested using rice husk as fuel, which was selected based on its availability as is usually classified as a wasteful product: hence the need for its utilization in order to combat environmental effects. Tests were conducted
19/10/2010 · The next development occurred in 1997's with still using the system downdraft and updraft gasification system. Two types of gas are shaiqirated and clean gahaiqi can be directly inserted into the internal combustion engine, while the gahaiqi are dirtier (with more tar) is used for the boiler. Planned capacity in 2001 is 2 MW (1.1 MWth and 450 Kwe). Gasification was built in Tervola, Finland.
For gasification of coal, updraft gasifier is suitable. Downdraft gasifier cannot accept coal. For direct heating applications, such as firing in kiln, furnaces, boilers, etc, updraft gasifier would make a better choice. However, if the contaminants in fuel gas are likely to affect the end-product quality, the choice of downdraft gasifier makes better sense. There are situations where effect
Top-Lit Updraft Type Gasifier for Carbonized Coal word97 The stove costs about Rp120.000,00 per unit (1US$=9630Rp), which is competitive with the prices of similar stoves in Indonesia. Comparing with other conventional stoves, the carbonized coal gasifier stove has an operating cost of Rp1,189.86 per hour while Rp1,552.42 per hour and Rp1678.11per hour for kerosene and LPG stoves.
In an updraft gasifier, wood enters the gasification chamber from above, falls onto a grate and forms a fuel pile. Air enters from below the grate and flows up through the fuel pile. The choice of fuel and gasifier design affects the relative proportions of compounds in the syngas. Also, how much does a wood gasification boiler cost?
Picture 13: Downdraft fixed bed gasifier: left: coat of gasifier with air pipes; right: insight from bottom. 22 Picture 14: Rotating grate of a fixed bed downstream gasifier: left: taken apart; righ: assembled. 22 Picture 15: Left updraft pyrolysis with auger screw to move biomass upwards, drop shaft and floating
Downdraft Gasifier In the updraft gasifier, gas leaves the gasifier with high tar vapor which may seriously interfere the operation of internal combustion engine. This problem is minimized in the Downdraft gasifier. In this type, air or oxygen is introduced into downward flowing packed bed or solid fuels and gas is drawn off at the bottom. A
operating closed-coupled to small district heating boilers and drying kilns (Kurkela et al., 1989). The staged fixed-bed gasifier described in this paper is a combination of the updraft gasification principle, applied already in the Bioneer gasifier, and the secondary catalytic zone operated at an increased temperature. The present
29/10/2019 · In updraft gasifiers, gas is drawn out of the gasifier from the top of the fuel bed while the gasification reactions take place near the bottom. As the producer gas pashaiqi through the fuel bed, it picks-up volatile matter (tars) and moisture from the fuel. Therefore, the gas from the updraft gasifier contains condensable volatiles. The design and operation of the gasifiers is such that the gas
This is an updraft gasifier heating water to 180 degrees f to help heat my home this gasifier run about two and one half hours on about 25 lbs of big or litt
2.3.1 Updraught or counter current gasifier. The oldest and simplest type of gasifier is the counter current or updraught gasifier shown schematically in Fig. 2.7. Figure 2.7 Updraught or counter current gasifier. The air intake is at the bottom and the gas leaves at the top. Near the grate at the bottom the combustion reactions occur, which
The gas leaving the updraft gasifier will also have high tar content versus the product gas from a downdraft gasifier. Some of the advantages of the updraft gasifier are that it has a small pressure drop vs. the downdraft gasifier , and that is has a smaller tendency for ash fusion within the mass of converting mahaiqial, which usually results in process problems.
31/3/2020 · Updraft Gasifier Design and Working . In updraft gasifiers, gas is drawn out of the gasifier from the top of the fuel bed while the gasification reactions take place near the bottom. As the producer gas pashaiqi through the fuel bed, it picks-up volatile matter (tars) and moisture from the fuel. Therefore, the gas from the updraft gasifier
updraft gasifier containing tar and particles could also be used directly in a Stirling engine without further cleaning . By biomass steam gasification in an updraft gasifier, hydrogen-rich syngas with a high calorific value was produced, in the range of 8.10–13.40 MJ/Nm. 3, and the hydrogen yield was in the range of 45.05–135.40 g H. 2 /kg