Cov khoom no yog ib tug dawb cylindrical alumina carrier, non-toxic, tasteless, insoluble nyob rau hauv dej thiab ethanol. AG-BT cov khoom muaj lub zog siab, cov nqi qis, siv tau cov yam ntxwv, tuaj yeem hloov kho raws li cov kev xav tau ntawm txhua qhov, tuaj yeem hloov kho hauv txhua qhov, tuaj yeem hloov kho hauv txhua qhov, tuaj yeem hloov kho hauv cov kab ke, hydroogenation catalyst catalyst catalyst catalyst catalyst catalyst catalyst catalyst catalyst catalyst catalyst catalyst catalyst catalyst catalyst catalyst carrier, CO sulfur resistant transformation catalyst carrier thiab lwm yam teb.