Principles of New Waste Pyrolysis Gasification Power Generation
The new type of waste pyrolysis gasification technology is based on circulating fluidized bed gasification technology, which combines fluidized bed semi-coke gasification, entrained bed slag gasification, and riser hydrogen pyrolysis, supporting high-efficiency horizontal gas Solid separator, return material system, moving bed gas purification system (dust removal, desulfurization, dechlorination, and removal of heavy metals), waste heat recovery system, which reacts step by step through garbage hydropyrolysis, tar hydrocracking, and semi-coke gasification. The high calorific value gas of methane avoids the generation of dioxin from the source, does not produce tar and waste water, and has no secondary pollution in the whole process, which realizes the efficient and clean resource utilization of garbage. Its technical principles mainly include rapid heating of garbage hydrogenation Decomposition, hydrogen cracking of tar, and semi-coke gasification.
New Waste Pyrolysis Gasification Power Generation process
(1) Raw material pretreatment
After the garbage is settled, it is crushed by the pulverizer and lifted to the upper silo through the star feeder into the cyclone dryer and the gasification gas is heat exchanged and dried, and then added to the middle of the gasification furnace through the middle silo and screw conveyor.
(2) Pyrolysis and gasification reaction
The raw materials entering the furnace are quickly blended with the circulating hot ash and high-temperature gas. The tar is pyrolyzed at a high temperature of about 800°C, and the produced tar is also cracked in the presence of hydrogen, mainly generating small molecules such as CH4; in the gasifier, The top is separated from the gas and solid by a high-efficiency separator. The semi-coke and heat carrier obtained by the first-stage separation is circulated back to the bottom of the circulating fluidized bed through the return device. The preheated gasification agent (air and water vapor) is in the boiling charge Vigorous combustion reaction and gasification reaction occur in the process, and CO, H2, CO2, etc. are generated at the reaction temperature of about 1000 ℃; the fly ash obtained by the secondary separation is carried into the entrained bed by water vapor and air through the return device, and high temperature melting occurs. Slag gasification reaction, liquid slag, and gas are sent to the lower part of the fluidized bed to cool down, solidify, and recover heat.
(3) Gas purification
The separated gas first enters the waste heat boiler to recover part of the heat by-product steam, and then enters the rotary drum dryer to exchange heat and dry the raw material garbage, and finally is used for industrial gas or power generation after moving bed purification, desulfurization, dechlorination, and heavy metal removal. The bottom ash and slag are discharged from the system after heat exchange and can be used as cement raw materials.
Product Feature
1. The waste reduction has a significant effect, which can be reduced by more than 90% at one time;
2. New Waste Pyrolysis Gasification Power Generation avoid the generation of dioxins at the source. During the entire process of waste pyrolysis and gasification, the system has been in a reducing atmosphere of H2, and there is no condition to generate dioxins, thus avoiding the generation of dioxins.
3. Prepare combustible gas to realize energy recycling. Garbage pyrolysis gasification uses thermal energy to break the chemical bonds of compounds containing organic combustibles under oxygen-deficient conditions, and converts large-molecular-weight organics to small-molecular-weight combustible gases such as CO, H2, and CH4.
4. Large-scale closed production lines will not affect the surrounding environment. Realize specialized and fine production, and all adopt computer DCS automatic control, which has no adverse effects on the surrounding environment.
5. The process system and equipment have strong adaptability. The pyrolysis gasification process has wide applicability and flexible operation.
6. It can greatly reduce flue gas emissions.
Product Production
FAQ
Q1.why should you buy from us and not from other suppliers
A: The waste reduction has a significant effect, which can be reduced by more than 90% at one time;
Avoid the generation of dioxins at the source. During the entire process of waste pyrolysis and gasification, the system has been in a reducing atmosphere of H2, and there is no condition to generate dioxins, thus avoiding the generation of dioxins.
Q2.How's your capacity?
A: The company has an annual production capacity of more than 10,000 tons of pressure vessels, and has a D-level pressure vessel manufacturing license; GB1, GB2, and GC2 level pressure pipeline installation qualification; mechanical and electrical equipment second-level construction and installation qualification; BB (second-class) equipment and electrical appliances below 10KV Instrument control design and installation qualification.
Q3.What can you buy from us?
A: Gasification, Boiler, Equipment, Casting, Steel structure.
Packing & Shipping
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