The invention discloses a device and a method for removing
methanol from a methyl tert-butyl
ether cracking product. The MTBE
cracking product and absorption liquid undergo cross flow-counterflow contact in a multistage
airflow shear cross-flow
bed; under the shear action of high-speed rotating filler, cracked gas and the absorption liquid are dispersed, coalesced and redispersed for multiple times, so that multistage absorption is realized;
cracking gas is introduced to a gas inlet in the side bottom of a multistage
airflow shear cross flow
bed; a gas outlet in the top of the multistage
airflow shear cross flow
bed is connected with a purified gas section; the absorption liquid is introduced to a liquid inlet in the side top of the multistage airflow shear cross flow bed; a liquid outletin the bottom of the multistage airflow shear cross flow bed is used for draining the absorption liquid; the liquid inlet is connected with a pump; the liquid outlet of the multistage airflow shear cross flow bed is connected with a liquid-rich tank; the multistage airflow shear cross flow bed comprises a liquid
distributor, a liquid collecting and redistributing device, a rotor, a
stator, a driving device and a casing. According to the equipment, the gas and the absorption liquid generally make counterflow contact, so that a gas-liquid
mass transfer propulsion force is greater, the purification degree of the cracking gas is improved, and the concentration of
methanol in the rich solution and the
utilization rate of the absorption liquid are improved.