Biomass Gasification Fuel-gas Deep Purification System
To orderly remove the three major pollutants, fly ash, tar and water, in biomass gasification fuel-gas,we developed the synergistic removal process of fly ash and tar based on the dry-wet combination technology, as well as the deep purification of multi-stage tar removal based on dew point control theory. A new absorbent with high regeneration efficiency is developed and used to remove different kinds of tar sequentially according to reasonable control of dew point temperature. Modular desulfurization and dechlorination can be employed to meet specific requirements for pollutants.