<p>The invention concerns catalysts comprising (i) a cladded catalyst support comprising (a) a core which comprises alumina particles and (b) about 1 to about 40 weight percent silica cladding, based on the weight of the cladded catalyst support, on the surface of the core; the catalyst support having a BET surface area of greater than 20 m2/g and a porosity of at least about 0.2 cc/g; and (ii) 0.1 to 10 weight percent, based on the weight of the catalyst, of catalytically active transition metal on the surface of the cladded catalyst support; wherein the catalyst support has a normalized sulfur uptake (NSU) of up to 25 ?g/m2. The invention also concerns the production and use of such catalysts.</p>
申请公布号
WO2010088013(A1)
申请公布日期
2010.08.05
申请号
WO2010US20374
申请日期
2010.01.07
申请人
W. R. GRACE & CO.-CONN.;SCHMIDT, STEPHEN RAYMOND;CHAPMAN, DAVID MONROE;KORANNE, MANOJ, M.;JENSEN, MICHAEL DENNIS
发明人
SCHMIDT, STEPHEN RAYMOND;CHAPMAN, DAVID MONROE;KORANNE, MANOJ, M.;JENSEN, MICHAEL DENNIS