发明名称 |
Fischer-tropsch catalyst comprising cobalt, magnesium and precious metal |
摘要 |
A method is described for preparing a catalyst precursor suitable for use in the Fischer-Tropsch synthesis of hydrocarbons including 10 to 40% by weight of cobalt oxide crystallites and 0.05 to 0.5% by weight of a precious metal promoter, dispersed over the surface of a porous transition alumina wherein the surface of the transition alumina has been modified by inclusion of 0.25 to 3.5% wt magnesium, including the steps of:
(a) forming a modified catalyst support by impregnating a transition alumina with a magnesium compound, drying and calcining the impregnated alumina in a first calcination at a temperature ≦600° C. to convert the magnesium compound into oxidic form, and(b) forming a catalyst precursor by impregnating the modified catalyst support with a cobalt compound and precious metal promoter compound, drying and calcining the impregnated catalyst support in a second calcination to convert the cobalt compound to cobalt oxide. |
申请公布号 |
US9346038(B2) |
申请公布日期 |
2016.05.24 |
申请号 |
US201214347383 |
申请日期 |
2012.10.03 |
申请人 |
JOHNSON MATTHEY PUBLIC LIMITED COMPANY |
发明人 |
Combes Gary Bevan;Claridge John Bleddyn;Gallagher James Robin;Rosseinsky Matthew J;Boldrin Paul |
分类号 |
B01J23/00;B01J23/89;B01J37/02;B01J37/08;B01J37/18;B01J21/04;B01J21/14;B01J33/00;B01J35/00;B01J37/00;C10G2/00 |
主分类号 |
B01J23/00 |
代理机构 |
Young & Thompson |
代理人 |
Young & Thompson |
主权项 |
1. A method for preparing a catalyst precursor suitable for use in the Fischer-Tropsch synthesis of hydrocarbons comprising 10 to 40% by weight of cobalt oxide crystallites and 0.05 to 0.5% by weight of a precious metal promoter, dispersed over the surface of a modified catalyst support formed from a porous transition alumina the surface of which has been modified by inclusion of 0.25 to 3.5% wt magnesium, comprising the steps of:
(a) forming a modified catalyst support by impregnating a transition alumina with a magnesium compound, drying and calcining the impregnated alumina in a first calcination at a temperature ≦600° C. to convert the magnesium compound into oxidic form, and (b) forming a catalyst precursor by impregnating the modified catalyst support with a cobalt compound and precious metal promoter compound, drying and calcining the impregnated catalyst support in a second calcination to convert the cobalt compound to cobalt oxide. |
地址 |
London GB |