METHOD OF REMOVING MECHANICAL CONTAMINANTS FROM GAS-VAPOR PRODUCTS WITH TEMPERATURE EXCEEDING DEW-POINT TEMPERATURE Russian patent published in 1995 - IPC

FIELD: thermal processing of fossil fuel. SUBSTANCE: method involves gravitational separation of large particles and centrifugal separation of fine particles; effectuating removal of fine particles in cyclonic separator and recirculation of 0.3-5% of gas-vapor product in the form of gas-suspension together with caught fine particles; conducting refined gas-vapor products for condensation to obtain resin and semicoking gas; providing condensation of heavy resin fraction in recirculation gas-suspension on surfaces of particles caught and conglomeration of resinified particles; recirculating gas-suspension by ejecting this suspension by overheated water vapor so that mixture to be ejected is formed; maintaining temperature of mixture to be ejected 10-50 C below dew-point temperature and returning the mixture into flow of particles separated at gravity separation stage. EFFECT: high quality of cleaning gas-vapor products. 2 cl, 2 dwg