The decentralized down-comer sieve plate column

a novel plate column

was designed and invented on the basis of the sieve plate column. The segmental down-comer of the traditional sieve plate column was changed into multiple down-comers that evenly distributed among the sieve pores. The new structure made the entire plate into mass transfer zone (MTZ) for well-distributed liquid drop and receiving

and it produced a new shower and splashing mass transfer area. Thus

it realized three-dimensional

continuously differential contact and mass transfer process for gas and liquid. In addition

packing or catalysts can be installed between the adjacent plates to strength mass transfer and promote chemical reactions in the tower. Adopting oxygen-air-water system

the mass transfer characteristics and influencing factors of the efficiency of the new plate were explored and compared with the traditional plate. The results showed that the gas and liquid in the new sieve column were distributed evenly and contacted adequately

and the mass transfer efficiency was higher than that of the traditional sieve plate by 8.4%—9.7% in the same conditions.