Key technologies for biomass gasification power generation
Biomass gasification means incomplete combustion of biomass resulting in production of combustible gases, including Carbon monoxide (CO), Hydrogen (H2), Methane (CH4), CmHn, this mixture is called pyrolysis gas that can be used to run internal combustion engines, and generate CHP. The production of pyrolysis gas called gasification, is partial combustion of biomass (such as rice husk, woodchips, saw dust, crop stalk, coconut hull, bagasse, olive pomace etc.). The reactor is called Biomas Carbonization Furnace. LCDRI Biomass Carbonization Furnace is the ideal machine for turnning the agricultural wastes to the useful energy. LCDRI has advanced production techniques and introduced foreign technologies to design professional Biomass Carbonization Furnace. Our professional furnace accepts wide-ranged raw materials, almost all the biomass wastes can be carbonized, such as wood, wood chips, coconut shells, straws,sawdust, rice husk, fruit peel, etc. Through the process of carbonization, biomass wastes could turn into charcoals, electricity and biogas under high-temperature environment.
Process Flow of Biomass Gasification Power Generation Plant
Biomass carbonization process flow including
Biomass Pretreatment (Pulverization, Drying, Granulation) — Biomass Absolute Oxygen Distillation — Flue Gas Treatment (Collection, Filtering, Cooling, Storage) and Combustion Utilization — Charcoal (Slag) Collection and Storage.
1. Biomass Pretreatment
First of all, the collected biomass will be pulverized, dried in a dryer, pressed, and made into a certain size of particulate materials.
2. Biomass absolute oxygen distillation
The granular biomass is transported to the Biomass Carbonization Furnace through the conveying device, and the gas and the remaining biomass carbon (residue) are decomposed by heating the granular biomass in the Biomass Carbonization Furnace. The combustible gases and water vapor are collected, filtered, cooled, converted into liquid and separated by collecting pipes. The combustible gases are transported to the gas tank and then used as fuel for combustion power generation or for heating the Biomass Carbonization Furnace.
3. Flue gas treatment and combustion utilization
After carbonization process, the generated flue gas mixed with vapour and flammable gas, through dedust unit and filter unit, make it clean, and then send to cooling unit, water and tar will be separated and collected from flue gas. Noncondensing flammable gas will be conveyed to the gas holder, after enter into combustion system for burning, it could be used for heating, electricity generation, heat supply, hot water supply and etc.
4. Charcoal (Slag) Collection and Storage
Below the gas collection hood, adopt rotary air lock valve, charcoal (residual slag) will be transported to conveying machine, and then store in the tank for final packing.