Abstract: A particular aspect of the invention concepts disclosed and described is directed to the use of a vented cup ballistic separation device and method of use for achieving rapid separation of a suspension of fluidized solid particulate and gasiform material. The vented cup ballistic separation apparatus is particularly discussed in conjunction with separating a suspension of catalyst particles from vaporous hydrocarbon reaction products of catalytic cracking discharged from a riser cracking operation. The vented cup ballistic separation apparatus particularly comprises an annular chamber about the upper periphery of an open ended riser conduit. The annular chamber is open in the upper end and one or more open end conduits extend outwardly from the annular chamber comprising means for attachment to cyclone separation means. The riser with vented cup or annular chamber terminates within a larger diameter chamber.

Abstract: A reforming operation is described which incorporates a zeolite selective conversion catalyst as a final catalyst composition contacted under temperature conditions controlled by quench gas as a function of product and seasonal demands. Preferably the zeolite catalyst is included as a separate downstream bed of catalyst in an enlarged final reactor of a three reactor reforming operation.

Abstract: The conversion of high metals containing feed stock is accomplished in the presence of a low molecular weight carbon-hydrogen fragment contributing material and an acid function crystalline zeolite catalyst to produce gasoline of high quality and yields superior to that obtained heretofore.

Abstract: A method for converting lower alcohols to ethers and hydrocarbons in an exothermic restricted process control arrangement with efficient utilization of process generated heat is described.

Abstract: The production of normal and premium lube grade blending stocks of 100, 300 and 700 second neutral material along with high boiling by-product material for the manufacture of asphalts is improved by using a low pressure vacuum tower provided with an overflash separation in the tower bottom from resid.