公开(公告)号：US4040944A

公开(公告)日：1977-08-09

申请号：US334765

申请日：1973-02-22

申请人： Arnold E. Kelley ,  Cloyd P. Reeg ,  Frederick C. Wood ,  George D. Cheadle

发明人： Arnold E. Kelley ,  Cloyd P. Reeg ,  Frederick C. Wood ,  George D. Cheadle

IPC分类号： C10G47/16 ,  C10G69/04 ,  C10G23/00

CPC分类号： C10G69/04 ,  C10G47/16

摘要： A desirably upgraded charge stock for catalytic cracking containing a relatively large proportion of heavy hydrocarbons boiling above about 800.degree. F., is produced by first subjecting a raw feedstock boiling predominantly above 600.degree. F. and containing a substantial proportion of material boiling above 800.degree. F., to catalytic hydrofining followed by catalytic hydrocracking at high pressures in the presence of a Group VIB and/or Group VIII metal-promoted, crystalline zeolite hydrocracking catalyst. The hydrocracking catalyst and conditions are chosen so as to achieve selective conversion of material boiling between about 600.degree. and 800.degree. F. to lower boiling materials with a relatively minor conversion of the 800.degree. F+ material. The resulting product boiling above 400.degree. F is rich in 800.degree. F+ material, and constitutes an excellent catalytic cracking charge stock.

摘要翻译： 通过首先使主要沸点高于600°F并含有大部分沸点高于800°F的原料进行催化裂化的期望升级的含有相当大比例的沸点高于约800°F的重质烃的催化裂化装料。 在催化加氢精制，然后在VIB和/或VIII族金属促进的结晶沸石加氢裂化催化剂存在下，在高压下进行催化加氢裂化。 选择加氢裂化催化剂和条件，以便通过800°F +材料的相对较小的转化率，将沸点在约600°至800°F之间的材料选择性转化为较低沸点的材料。 产生沸点高于400°F的产物富含800°F +材料，构成了优异的催化裂化电荷原料。