title: Clover leaf-shaped Al2O3 extrudate as a support for high-capacity and cost-effective CO2 sorbent.
abstract: Amine-functionalized clover leaf-shaped Al(2)O(3) extrudates (CA) were prepared for use as CO(2) sorbent. The as-synthesized materials were characterized by N(2) adsorption, XRD, SEM and elemental analysis followed by testing for CO(2) capture using simulated flue gas containing 15.1% CO(2). The results showed that a significant enhancement in CO(2) uptake was achieved with the introduction of amines into CA materials. A remarkably high volume-based capacity of 70.1mg/mL of sorbent of this hybrid material suggests that it can be potentially used for CO(2) capture from flue gases and other stationary sources, especially those with low CO(2) concentration. The novel adsorbent reported here performed well during prolonged cyclic operations of adsorption-desorption of CO(2).
authors.affiliation: State Key Laboratory of Heavy Oil Processing, CNPC Key Laboratory of Catalysis, China University of Petroleum, Qingdao 266555, PR China.
authors.forename: Xinlong
authors.initials: X
authors.lastname: Yan
authors.forename: Ying
authors.initials: Y
authors.lastname: Zhang
authors.forename: Ke
authors.initials: K
authors.lastname: Qiao
authors.forename: Xiang
authors.initials: X
authors.lastname: Li
authors.forename: Zhanquan
authors.initials: Z
authors.lastname: Zhang
authors.forename: Zifeng
authors.initials: Z
authors.lastname: Yan
authors.forename: Sridhar
authors.initials: S
authors.lastname: Komarneni
mesh_terms: D000327:Adsorption; D000537:Aluminum Oxide / Q000737:chemistry*; D002245:Carbon Dioxide / Q000737:chemistry*; D003362:Cost-Benefit Analysis; D005740:Gases; D008855:Microscopy, Electron, Scanning / Q000379:methods; D009584:Nitrogen / Q000737:chemistry; D011094:Polyethyleneimine / Q000737:chemistry; D013696:Temperature; D014961:X-Ray Diffraction
chemical_list: D005740:Gases; D002245:Carbon Dioxide; D011094:Polyethyleneimine; D000537:Aluminum Oxide; D009584:Nitrogen