▎ 摘　　要

NOVELTY - Purifying hydrogen involves passing the mixed gas through the separation adsorbent for primary separation, compressing and boosting the gas that has undergone primary separation to increase the pressure from 0.5-2.5 megapascal, and then undergoes pressure swing adsorption through the separated adsorbent to obtain purified hydrogen. The molecular sieve adsorbent is included in the separation adsorbent. The molecular sieve adsorbent is prepared by mixing hydrogen-producing molecular sieve 5A with deionized water, stirring to disperse, adding hydrochloric acid to adjust the pH value to 1-2, stirring for 2 hours, filtering, washing, drying, and mixing with deionized water to prepare a suspension. The suspension is mixed with graphene oxide, and continuing to stirred for 1 hour after ultrasonic dispersion to obtain pretreated molecular sieves. The aluminum nitrate nonahydrate and deionized water are mixed, heated up to 80℃. USE - Method for purifying hydrogen. ADVANTAGE - The method modifies the molecular sieve adsorbent in the separation adsorbent, increases the empty pores, increases the internal volume, and reduces the entry of hydrocarbons into the molecular sieve layer, prolongs the service life of molecular sieves, increases the service life of adsorbents, and reduces energy consumption alleviate the dual pressures of energy storage and environmental pollution by increasing the utilization rate of hydrogen. DETAILED DESCRIPTION - Purifying hydrogen involves passing the mixed gas through the separation adsorbent for primary separation, compressing and boosting the gas that has undergone primary separation to increase the pressure from 0.5-2.5 megapascal, and then undergoes pressure swing adsorption through the separated adsorbent to obtain purified hydrogen. The molecular sieve adsorbent is included in the separation adsorbent. The molecular sieve adsorbent is prepared by mixing hydrogen-producing molecular sieve 5A with deionized water, stirring to disperse, adding hydrochloric acid to adjust the pH value to 1-2, stirring for 2 hours, filtering, washing, drying, and mixing with deionized water to prepare a suspension. The suspension is mixed with graphene oxide, and continuing to stirred for 1 hour after ultrasonic dispersion to obtain pretreated molecular sieves. The aluminum nitrate nonahydrate and deionized water are mixed, heated up to 80℃, then added ammonia water to adjust the pH value to 7-8, and added pretreated molecular sieves. The ammonia water is added dropwise, adjusted the pH value to 9-10, kept the temperature constant, continue to stirred for 2-3 hours, and obtained the molecular sieve adsorbent after filtering, washed with water, dried, calcined and ball milled.