摘要 |
A method is described for preparing a catalyst comprising the steps of: (i) preparing a calcined shaped calcium aluminate catalyst support, (ii) treating the calcined shaped calcium aluminate support with water, and then drying the support, (iii) impregnating the dried support with a solution containing one or more metal compounds and drying the impregnated support, (iv) calcining the dried impregnated support, to form metal oxide on the surface of the support and (v) optionally repeating steps (ii), (iii) and (iv) on the metal oxide coated support. The method provides an eggshell catalyst in which the metal oxide is concentrated in an outer layer on the support. |
申请人 |
JOHNSON MATTHEY PLC;CARLSSON, MIKAEL PER UNO;OLIVER, JONATHAN GEOFFREY;FEAVIOUR, MARK ROBERT;BIRDSALL, DAVID JAMES;FRENCH, SAMUEL ARTHUR |
发明人 |
CARLSSON, MIKAEL PER UNO;OLIVER, JONATHAN GEOFFREY;FEAVIOUR, MARK ROBERT;BIRDSALL, DAVID JAMES;FRENCH, SAMUEL ARTHUR |