Patent ID: 8695323
Filing Date: 2014-04-15
Classification: B01D,B03C,C10J,C10K

Abstract:
1. A plant for the gasification of biomass, comprising a gasifier and an apparatus for the filtration of the gas comprising a scrubber, a tank and a wet electrostatic precipitator, wherein: the gasifier comprises a downdraft, open core gasification reactor in which an opening for an inlet of the biomass is adapted also for the inlet of air; the scrubber is in fluid communication with the gasifier and with the tank and is adapted for the injection of a washing liquid in the gas flow exiting said gasifier; the tank comprises a bottom area adapted for collecting the washing liquid and a top area adapted for holding the gas, the tank being thus adapted for receiving the gas and the washing liquid and to separate them by gravity, the tank further comprising an overflow and an inlet for external water controlled by a proper probe or float, which are adapted to ensure respectively the maximum level and the minimum level of the water in the tank; and the wet electrostatic precipitator is in fluid communication with the top area of said tank such as to receive only said gas.