초록 ▼

A dual component cracking catalyst system is disclosed comprising zeolite as a first component and a mixture of a calcium/magnesium-containing material and a magnesium-containing material as a second component. The preferred calcium/magnesium-containing material is dolomite and the preferred magnesi

A dual component cracking catalyst system is disclosed comprising zeolite as a first component and a mixture of a calcium/magnesium-containing material and a magnesium-containing material as a second component. The preferred calcium/magnesium-containing material is dolomite and the preferred magnesium-containing material is sepiolite.

대표청구항 ▼

A dual component catalyst composition for the catalystic cracking of metal-containing hydrocarbonaceous feedstock comprises: (1) A first component comprising an active cracking catalyst; and (2) A second component, as a separate and distinct entity, said second component comprising the following mat

A dual component catalyst composition for the catalystic cracking of metal-containing hydrocarbonaceous feedstock comprises: (1) A first component comprising an active cracking catalyst; and (2) A second component, as a separate and distinct entity, said second component comprising the following materials. (a) A calcium and magnesium containing material selected from the group consisting of dolomite, substantially amorphous calcium magnesium silicate, calcium magnesium oxide, calcium magnesium acetate, calcium magnesium carbonate, and calcium magnesium subcarbonate; (b) A magnesium containing material comprising a hydrous magnesium silicate; and (c) A binder selected from the group consisting of kaolin, bentonite, montmorillonite, saponite, hectorite, alumina, silica, titania, zirconia, silica-alumina, and combinations thereof; wherein the weight ratio of material (a) to material (b) is from about 80:20 to about 20:80 and said binder comprises from about 5 to 30% by weight of said second component based on the total weight of said second component; wherein said material (a) substantially transforms under cracking conditions to active compounds for metal trapping.