摘要 |
<p>A particulate catalytic cracking catalyst which comprises a zeolite having catalytic cracking ability under catalytic cracking conditions, added silica, precipitated alumina and, optionally clay. The catalytic cracking catalyst has a high matrix surface area and is useful in a catalytic cracking process, in particularly, a fluid catalytic cracking process, to improve bottoms conversion at a constant coke formation.</p> |
申请人 |
W. R. GRACE & CO. - CONN.;CHENG, WU CHENG;SUTOVICH, KEVIN JOHN;HU, RUIZHONG;KUMAR, RANJIT;ZHAO, XINJIN |
发明人 |
CHENG, WU CHENG;SUTOVICH, KEVIN JOHN;HU, RUIZHONG;KUMAR, RANJIT;ZHAO, XINJIN |