REACTOR-REGENERATOR UNIT OF CATALYTIC CRACKING Russian patent published in 2002 - IPC

FIELD: manufacture of equipment for chemical and petrochemical engineering; secondary oil refining plant. SUBSTANCE: proposed unit includes vertical reactor and regenerator connected in series; reactor and regenerator are provided with catalyst and product inlet and outlet branch pipes; proposed unit includes also inclined catalyst line made in form of pipe, pneumatic hoist proportioner made in form of vertical cylindrical housing provided with cover and bottom and catalyst and secondary air inlet branch pipes, primary air supply branch pipe and sleeve and pneumatic nozzle located coaxially inside proportioner housing stopping short of the bottom. Catalyst line is provided with flat longitudinal partition mounted along axis whose upper end reaches center of cross section of catalyst outlet branch pipe. Lower end of said partition is made in form of extended half- ring embracing the sleeve and horizontally dividing circular space between walls of proportioner housing and sleeve into two equal parts. EFFECT: enhanced efficiency of cracking process; reduced losses of catalyst. 3 cl, 3 dwg, 1 tbl