The adsorption tower alternately carries out the process of adsorption, pressure. equalization and desorption to achieve continuous hydrogen production. Rich hydrogen enters the system under a certain pressure. The rich hydrogen passes through the adsorption tower filled with special adsorbent from bottom to top. Mae CO / CH4 / N2 yn cael ei gadw ar wyneb yr adsorbent fel cydran arsugniad gref, ac mae H2 yn treiddio i'r gwely fel cydran arsugniad. The product hydrogen collected from the top of the adsorption tower is output outside the boundary. When the adsorbent in the bed is saturated with CO / CH4 / N2, the rich hydrogen is switched to other adsorption towers. In the process of adsorption desorption, a certain pressure of product hydrogen is still left in the adsorbed tower. This part of pure hydrogen is used to equalize and flush the other pressure equalizing towers just desorbed. Mae hyn nid yn unig yn defnyddio'r hydrogen sy'n weddill yn y twr arsugniad, ond hefyd yn arafu cyflymder codi pwysau yn y twr arsugniad, yn arafu'r radd blinder yn y twr arsugniad, ac yn cyflawni pwrpas gwahanu hydrogen yn effeithiol.