公开(公告)号：US20220212161A1

公开(公告)日：2022-07-07

申请号：US17604668

申请日：2020-04-06

Applicant: BASF CORPORATION

Inventor： Laif ALDEN ,  Wolfgang RUETTINGER ,  Steven Wesley CHIN ,  Gerard Diomede LAPADULA ,  Ahmad MOINI

IPC: B01J20/18 ,  B01J20/28 ,  B01J20/32 ,  B01D53/04

Abstract: Disclosed in certain embodiments are hydrocarbon adsorbents and evaporative emission control systems incorporating the same to reduce hydrocarbon bleed emissions from fuel systems. In one embodiment, a hydrocarbon adsorbent structure comprises a zeolite having a silica-to-alumina ratio of at least 20.