The　dry　adsorptive　desulfurization　was　adopted　according　to　the　working　condition　of　dispersed　crude　oil　storage　tanks.　Ferric　oxide　and　activated　carbon　were　chosen　as　adsorbents,　and　three　commercial　adsorbents　were　tested　in　laboratory.　Meanwhile,　the　on-site　desulfurization　experiment　of　crude　oil　storage　tank　was　also　performed.　It　shows　that　compared　with　the　adsorption　capacity　of　H2S　obtained　in　laboratory,　the　capacity　of　which　obtained　in　the　on-site　experiment　decreases.　The　reason　is　that　volatile　gas　composition　of　crude　oil　is　more　complex.　Besides　adsorbing　H2S,　the　adsorption　agent　also　has　adsorption　effect　on　mercaptan,　toluene,　etc.